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1 model pxu - temperature/process controllers general description the pxu controller accepts signals from a variety of temperature sensors including thermocouple or rtd. the controller can also be configured for process inputs including 0 to 5/10 vdc, 0/4 to 20 ma dc, or 0 to 50 mv dc. the pxu can provide an accurate output control signal (time proportional or dc analog output) to maintain a process at a determined setpoint value. dual 4-digit display readings allow viewing of the temperature/process and setpoint value simultaneously. front panel indicators inform the operator of alarm and control output status. comprehensive programming features allow this controller to meet a wide variety of application requirements. main control the pxu allows the user to select between pid, on/off and manual control mode. the pxu has the ability to provide 2 control outputs. the control outputs can be individually configured for reverse or direct (heating or cooling) applications. the pid tuning constants can be established via on-demand auto- tune. the pid constants can also be programmed, or fine-tuned, through the front panel or a pc and then locked out from further modification. alarms alarm(s) can be configured independently for absolute high or low acting with balanced or unbalanced hysteresis. they can also be configured for deviation and band alarm. in these modes, the alarm trigger values track the setpoint value. adjustable alarm hysteresis can be used for delaying output response. the alarms can be programmed for automatic or latching operation. a selectable standby feature suppresses the alarm during power-up until the temperature stabilizes outside the alarm region. construction the pxu is constructed of a lightweight, high impact, black plastic textured case with a clear display window. modern surface-mount technology, extensive testing, plus high immunity to noise interference makes the controller extremely reliable in industrial environments. safety summary all safety related regulations, local codes and instructions that appear in the manual or on equipment must be observed to ensure personal safety and to prevent damage to either the instrument or equipment connected to it. if equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. do not use this unit to directly command motors, valves, or other actuators not equipped with safeguards. to do so can be potentially harmful to persons or equipment in the event of a fault to the controller. if redundant safeguards are not in place, an independent and redundant temperature limit indicator with alarm outputs is strongly recommended. z pid control z accepts tc and rtd z accepts 0-10 v, 0/4-20 m a or 0-50 m v signals z functions as a digital pot z on demand auto-tuning of pid settings z dc analog control output (optional) z 2 user programmable function buttons z pc (models with rs 485) or front panel programming z 1/16, 1/8 or 1/4 din z controllers meet ip65 requirements bulletin no. pxu-d drawing no. lp0932 released 09/15 tel +1 (717) 767-6511 fax +1 (717) 764-0839 www.redlion.net c us listed u l r 13r w process control equipment (48.0) 1.89 1.89 (48.0) (45.0) 1.77 1.77 (45.0) 6 5 4 3 2 1 12 11 10 9 8 7 15 14 13 16 17 18 0.26 (6.70) 3.14 (79.70) 0.31 (7.80) 0.47 (1 1.88) 0.83 (21.0) dimensions in inches (mm) - 1/16 din panel cut-out caution: risk of electric shock. when the power is on, do not touch the ac terminals, an electric shock may occur. make sure the power is disconnected when you check the input power supply. 1. prevent dust or metallic debris from falling into the controller and causing malfunctions. do not modify the controller. 2. the pxu is an open-type device. make sure it is installed in an enclosure free of dust and humidity in case of an electric shock. 3. wait for one minute after the power is switched off to allow the unit to discharge. do not touch the internal wiring within this period of time. caution: risk of danger. read complete instructions prior to installation and operation of the unit.
2 3.77 (95.8) 3.77 (95.8) 0.45 (1 1.4) 2.82 (71.5) 3.58 (91.0) 3.58 (91.0) 3.58 (91.0) 24 22 21 20 19 18 17 16 15 14 13 12 10 9 8 6 7 5 4 3 1 2 11 23 36 35 34 33 32 31 30 29 28 27 26 25 dimensions in inches (mm) - 1/4 din 13 14 16 15 18 17 19 20 21 22 23 24 1 2 3 4 5 6 7 11 10 9 8 12 3.77 (95.8) (1 1.4) 0.45 2.82 (71.5) (44.5) 1.76 (91.5) 3.60 3.60 (91.5) (48.0) 1.89 f1 f2 dp dimensions in inches (mm) - 1/8 din panel cut-out panel cut-out general specifications .................. 3 ordering information .................... 4 emc installation guidelines .............. 5 setting the current input jumper .......... 5 installing the controller .................. 6 wiring the controller .................... 7 reviewing the front keys and display ...... 8 programming loops .................... 8 troubleshooting ....................... 21 control mode explanations .............. 22 pid tuning explanations ................ 23 parameter value chart ................. 25 programming overview ................. 26 t able o f c on ten ts
3 3 general specifications 1. display : lcd negative image transmissive with backlighting. top (process) display with orange backlighting, bottom (parameter) display with green backlighting. line 1 and 2 : 4 digits each line status annunciators : out1 - control output 1 is active. out2 - control output 2 is active. alm1 - alarm 1 output is active. alm2 - alarm 2 output is active. alm3 - alarm 3 output is active. f, c - temperature units. man - controller is in manual mode. at - auto-tune active. 1/4 din model digit size : line 1 - 0.87" (22 mm); line 2 - 0.55" (14 mm) 1/8 din model digit size : line 1 - 0.47" (12 mm); line 2 - 0.47" (12 mm) 1/16 din model digit size : line 1 - 0.43" (11 mm); line 2 - 0.27" (7.0 mm) 2. power : line voltage models : 100 to 240 vac -20/+8 %, 50/60 hz, 5 va low voltage models : dc power: 24 vdc, 10%, 5 w 3. keypad : mylar overlay with 4 program/selection keys and 2 user programmable function keys. 6 keys total. 4. display messages : ???? - measurement exceeds + sensor range ???? - measurement exceeds - sensor range ???? - open sensor is detected (tc or rtd) ???? - shorted sensor is detected (rtd only) . . . - display value exceeds + display range ?. .. . - display value exceeds - display range 5. sensor input : sample period : 100 msec (10 hz rate) a/d converter : 16 bit resolution span drift (maximum): 130 ppm/c input fail response : main control output(s): programmable preset output display: open , shrt alarms: programmable for on or off normal mode rejection : >35 db @ 50/60 hz common mode rejection : >120 db, dc to 60 hz 6. input capabilities : temperature/rtd indication accuracy : (0.3% of span, +1c) at 25c ambient after 20 minute warm up. includes nist conformity, cold junction effect, a/d conversion errors and linearization conformity. thermocouple inputs : types : t, e, j, k, r, s, b, n, l, u, and txk input impedance : approximately 4.7 m ? lead resistance effect : -0.3 v/ ? cold junction compensation : less than 1.5c typical (2.5c max) error over 0 to 50c temperature range. resolution : 1 for types r, s, b and 1 or 0.1 for all other types type display range wire color standard ansi bs 1843 t -200 to +400c -328 to +752f (+) blue (-) red (+) white (-) blue its-90 e 0 to 600c +32 to +1112f (+) violet (-) red (+) brown (-) blue its-90 j -100 to +1200c -148 to +2192f (+) white (-) red (+) yellow (-) blue its-90 k -200 to +1300c -328 to +2372f (+) yellow (-) red (+) brown (-) blue its-90 r 0 to +1700c +32 to +3092f no standard (+) white (-) blue its-90 s 0 to +1700c +32 to +3092f no standard (+) white (-) blue its-90 b +100 to +1800c +212 to +3272f no standard no standard its-90 n -200 to +1300c -328 to +2372f (+) orange (-) red (+) orange (-) blue its-90 l -200 to +850c -328 to +1562f (+) red (-) blue (+) red (-) blue din 43714 u -200 to +500c -328 to +932f no standard (+) white (-) blue ipts68 txk -200 to +800c -328 to +1472f rtd inputs : type : 2 or 3 wire excitation : 180 a typical resolution : 1 or 0.1 for all types type input type range standard 385 100 ? platinum, alpha = .00385 -200 to +850c -328 to +1562f iec 751 392 100 ? platinum, alpha = .003919 -20 to +400c -32 to +752f no official standard 672 120 ? nickel alpha = .00672 -80 to +300c -112 to +572f cu50 50 ? copper alpha = .00428 -50 to +150c -58 to +302f process inputs : input range accuracy * impedance max continuous overload resolution 0-5 vdc 0.3% of rdg + 0.03 v 1.8 m ? 50 v 395 v 0-10 vdc 0.3% of rdg + 0.03 v 1.8 m ? 50 v 395 v 0-20 ma 0.3% of rdg + 0.04 ma 249 ? 30 ma 1.6 a 4-20 ma 0.3% of rdg + 0.04 ma 249 ? 30 ma 1.6 a 0-50 mv 0.3% of rdg + 0.1 mv 4.7 m ? 30 v 2.2 v * accuracies are expressed as percentages @ 25 c ambient range after 20 minute warm-up. 7. user input : (optional) contact input : on resistance 1 k ? max. off resistance 100 k ? min. response time : 1 sec max functions : programmable 8. memory : nonvolatile e 2 prom retains all programmable parameters. 9. output capabilities: output : time proportioning or dc analog control : pid, on/off or user/manual cycle time : programmable auto-tune : when selected, sets proportional band, integral time, derivative time, and integration default. also sets relative gain (if applicable). input fail action : programmable output power level control relay outputs (out1/out2) : type: form a contact rating: 5 a @ 250 vac life expectancy: 100,000 cycles at max. load rating (decreasing load and/or increasing cycle time, increases life expectancy) control ssr drive output (out1) : rating: 12 vdc 10% @ 40 ma max. control analog output (out1) : output : time proportioning or dc analog analog types : 4 to 20 ma or 0 to 10 vdc isolation to sensor & communication common : 500 vdc for 1 min. resolution : 12 bit compliance : 10 vdc: 1 k ? load min., 20 ma: 500 ? load max. alarms : 2 relay alarm outputs. type: form a or form c, model and alarm dependent contact rating: 3 a @ 250 vac life expectancy: 100,000 cycles at max. load rating (decreasing load and/or increasing cycle time, increases life expectancy) modes : none absolute high acting (balanced or unbalanced hysteresis) absolute low acting (balanced or unbalanced hysteresis) deviation high acting deviation low acting inside band acting outside band acting reset action : programmable; automatic or latched standby mode : programmable; yes or no hysteresis : programmable input fail response : programmable annunciator : alm1, alm2, and alm3, programmable for normal or reverse acting
4 4 10. isolation level : ac power with respect to all other i/o : 250 v working (2300 v for 1 min.) sensor input to analog output : 50 v working (500 v for 1 minute) relay contacts to all other i/o : 250 v working (2300 v for 1 minute) dc power with respect to sensor input and analog output : 50 v working (500 v for 1 minute) 11. certifications and compliances : ce approved en 61326-1 immunity to industrial locations emission cispr 11 class a en 61010-1 rohs compliant ul listed: file #e179259 ip65 enclosure rating (face only) refer to emc installation guidelines section of the bulletin for additional information. 12. environmental conditions : operating temperature range : 0 to 50c storage temperature range : -20 to 65c operating and storage humidity : 80% max relative humidity (non- condensing) from 0c to 50c vibration resistance : operational 10 to 55 hz, 1 g shock resistance : operational 30 g altitude : up to 2000 meters 13. connection : wire-clamping screw terminals 14. construction : black plastic alloy case and panel latch. black plastic textured bezel with transparent display window. controller meets ip65 requirements for indoor use when properly installed. installation category ii, pollution degree 2. 15. weight : 1/4 din: 11.0 oz (312 g) 1/8 din: 7.8 oz (221 g) 1/16 din: 5.3 oz (150 g) do not dispose of unit in trash - recycle ordering information model no. din size main control output 1 secondary control output 2 user input(s) rs 485 part numbers 100 to 240 vac 24 vdc pxu 1/16 relay - - - pxu10020 pxu100b0 relay relay 2 yes pxu11a20 pxu11ab0 logic/ssr - - - pxu20020 pxu200b0 logic/ssr relay 2 yes pxu21a20 pxu21ab0 4-20 ma - - - pxu30020 pxu300b0 4-20 ma relay 2 yes pxu31a20 pxu31ab0 0-10 vdc - - - pxu40020 pxu400b0 0-10 vdc relay 2 yes pxu41a20 n/a 1/8 (vertical) relay - - - pxu10030 pxu100c0 relay relay 2 yes pxu11a30 pxu11ac0 logic/ssr - - - pxu20030 pxu200c0 logic/ssr relay 2 yes PXU21A30 pxu21ac0 4-20 ma relay 2 yes pxu31a30 pxu31ac0 0-10 vdc - - - pxu40030 pxu400c0 1/4 relay relay 2 yes pxu11a50 pxu11ae0 4-20 ma relay 2 yes pxu31a50 pxu31ae0 0-10 vdc relay 2 yes pxu41a50 pxu41ae0 only stocked part numbers are listed. contact factory for availability of non-stock models. in order to program the unit using crimson, the unit must be purchased with the rs 485 option. accessories model no. description part numbers rly external ssr power unit (for logic/ssr models) rly50000 25 a single phase din rail mount solid state relay rly60000 40 a single phase din rail mount solid state relay rly6a000 three phase din rail mount solid state relay rly70000 pgusb usb to 485 converter with cable pgusb485 sfcrd 1 crimson pc configuration software sfcrd200 1 crimson software is a free download from http://www.redlion.net
5 5 emc installation guidelines although red lion controls products are designed with a high degree of immunity to electromagnetic interference (emi), proper installation and wiring methods must be followed to ensure compatibility in each application. the type of the electrical noise, source or coupling method into a unit may be different for various installations. cable length, routing, and shield termination are very important and can mean the difference between a successful or troublesome installation. listed are some emi guidelines for a successful installation in an industrial environment. 1. a unit should be mounted in a metal enclosure, which is properly connected to protective earth. 2. use shielded cables for all signal and control inputs. the shield connection should be made as short as possible. the connection point for the shield depends somewhat upon the application. listed below are the recommended methods of connecting the shield, in order of their effectiveness. a. connect the shield to earth ground (protective earth) at one end where the unit is mounted. b. connect the shield to earth ground at both ends of the cable, usually when the noise source frequency is over 1 mhz. 3. never run signal or control cables in the same conduit or raceway with ac power lines, conductors, feeding motors, solenoids, scr controls, and heaters, etc. the cables should be run through metal conduit that is properly grounded. this is especially useful in applications where cable runs are long and portable two-way radios are used in close proximity or if the installation is near a commercial radio transmitter. also, signal or control cables within an enclosure should be routed as far away as possible from contactors, control relays, transformers, and other noisy components. 4. long cable runs are more susceptible to emi pickup than short cable runs. 5. in extremely high emi environments, the use of external emi suppression devices such as ferrite suppression cores for signal and control cables is effective. the following emi suppression devices (or equivalent) are recommended: fair-rite part number 0443167251 (rlc part number fcor0000) line filters for input power cables: schaffner # fn2010-1/07 (red lion controls # lfil0000) 6. to protect relay contacts that control inductive loads and to minimize radiated and conducted noise (emi), some type of contact protection network is normally installed across the load, the contacts or both. the most effective location is across the load. a. using a snubber, which is a resistor-capacitor (rc) network or metal oxide varistor (mov) across an ac inductive load is very effective at reducing emi and increasing relay contact life. b. if a dc inductive load (such as a dc relay coil) is controlled by a transistor switch, care must be taken not to exceed the breakdown voltage of the transistor when the load is switched. one of the most effective ways is to place a diode across the inductive load. most rlc products with solid state outputs have internal zener diode protection. however external diode protection at the load is always a good design practice to limit emi. although the use of a snubber or varistor could be used. rlc part numbers: snubber: snub0000 varistor: ils11500 or ils23000 7. care should be taken when connecting input and output devices to the instrument. when a separate input and output common is provided, they should not be mixed. therefore a sensor common should not be connected to an output common. this would cause emi on the sensitive input common, which could affect the instruments operation. visit rlcs web site at http://www.redlion.net/emi for more information on emi guidelines, safety and ce issues as they relate to red lion controls products. 1.0 s etting the c urren t i npu t j umper when input type is selected as one of the two current input types (0-20 or 4-20), the current input jumper must be installed. the current input jumper is factory set for temperature and voltage input types. to change the jumper to configure the input for a current input type, the inside of the unit must be accessed and the jumper position changed. to access the jumper, locate the two latches located on top and bottom of the front of the unit. starting with the top latch, insert a small flat-blade screwdriver between the case latch and bezel while using your thumb to push out on the bezel until the latch is disengaged. repeat this process with the bottom latch. after the latches are disengaged, using the flat-blade screwdriver, gently pry out on the bezel in several areas until the unit releases from the case. look for the current input jumper which will be located close to the pc board area that connects to the input terminals. if a current input type is desired, position the jumper across both pins. if input type is anything other than a current input, position the jumper on only one pin. jumper pin header jp8 f act or y setting thermocouple, rtd or voltage input jumper pin header jp8 current input (4-20 ma or 0-20 ma)
6 2.0 i ns t alling the c on troller the controller is designed to be mounted into an enclosed panel. the unit must be inserted in the case during installation of the controller. instructions: 1. prepare the panel cutout to the proper dimensions. 2. assemble the mounting clip by inserting the nut into the slot and then insert the screw and thread through the nut as shown (see drawing) 3. slide the panel gasket over the rear of the controller, seating it against the lip at the front of the case. 4. insert the controller into the panel cutout. while holding the controller in place, install the panel latch and then slide it to the farthest forward slot possible. 5. to achieve a proper seal, tighten the panel latch screws evenly until the controller is snug in the panel, torquing the screws to 13.9 to 20.8 oz-in (9.8 to 14.7 n-cm). overtightening can result in distortion of the controller, and reduce the effectiveness of the seal. note: the installation location of the controller is important. be sure to keep it away from heat sources (ovens, furnaces, etc.) and away from direct contact with caustic vapors, oils, steam, or any other process by-products in which exposure may affect proper operation. (4) p anel la tch (supplied w/unit) pa nel gasket existing pa nel cut- out 3.58" (91.0 mm) x 3.58" (91.0 mm) 7 8 9 10 11 12 pa nel la tch (supplied w/unit) existing p anel cut - out 1/16 din 1.77? (45.0 mm) x 1.77? (45.0 mm) p anel gaske t 1/16 din installation 1/8 din installation 1/4 din installation 20 2 4 2 3 2 2 21 14 17 19 18 15 16 13 (2) p anel la tch (supplied w/unit) pa nel gasket existing pa nel cut- out 1.76" (44.5 mm) x 3.60" (91.5 mm) the controller is designed to be mounted into an enclosed panel. the unit must be inserted in the case during installation of the controller. instructions: 1. prepare the panel cutout to the proper dimensions. 2. assemble the mounting clip by inserting the nut into the slot and then insert the screw and thread through the nut as shown (see drawing) 3. slide the panel gasket over the rear of the controller, seating it against the lip at the front of the case. 4. insert the controller into the panel cutout. while holding the controller in place, install the panel latches and then slide them to the farthest forward slot possible. 5. to achieve a proper seal, tighten the panel latch screws evenly until the controller is snug in the panel, torquing the screws to 13.9 to 20.8 oz-in (9.8 to 14.7 n-cm). overtightening can result in distortion of the controller, and reduce the effectiveness of the seal. note: the installation location of the controller is important. be sure to keep it away from heat sources (ovens, furnaces, etc.) and away from direct contact with caustic vapors, oils, steam, or any other process by-products in which exposure may affect proper operation. the controller is designed to be mounted into an enclosed panel. the unit must be inserted in the case during installation of the controller. instructions: 1. prepare the panel cutout to the proper dimensions. 2. assemble the mounting clip by inserting the nut into the slot and then insert the screw and thread through the nut as shown (see drawing) 3. slide the panel gasket over the rear of the controller, seating it against the lip at the front of the case. 4. insert the controller into the panel cutout. while holding the controller in place, install the panel latches and then slide them to the farthest forward slot possible. 5. to achieve a proper seal, tighten the panel latch screws evenly until the controller is snug in the panel, torquing the screws to 13.9 to 20.8 oz-in (9.8 to 14.7 n-cm). overtightening can result in distortion of the controller, and reduce the effectiveness of the seal. note: the installation location of the controller is important. be sure to keep it away from heat sources (ovens, furnaces, etc.) and away from direct contact with caustic vapors, oils, steam, or any other process by-products in which exposure may affect proper operation.
7 7 3.0 w iring the c on troller wiring connections all wiring connections are made to the rear screw terminals. when wiring the controller, use the numbers on the label and those embossed on the back of the case, to identify the position number with the proper function. all conductors should meet voltage and current ratings for each terminal. also, cabling should conform to appropriate standards of good installation, local codes and regulations. it is recommended that power (ac or dc) supplied to the controller be protected by a fuse or circuit breaker. strip the wire, leaving approximately 1/4" (6 mm) bare wire exposed (stranded wires should be tinned with solder). insert the wire under the clamping washer and tighten the screw until the wire is clamped tightly. 1 l 50/60 hz 5v a ac 100-240v n 2 13 14 user1 8 7 + - 15 9 3 user 2 41 0 16 al1 al2 op 2 / al 3 + - 11 17 5 12 18 6 rt d op 1r s-485 d d - + + in tc + -- + - - + ac 100~240v 50/60 hz 5v a 1 ~ 13 2 14 3 15 4 16 5 17 61 8 7 19 8 20 92 1 10 22 11 23 12 24 in tc no d- l n no d+ rs-485 no no &200 &200 &200 &200 nc al 1 al 2 op 1 user 2 user 1 op 2/ al 3 + ++ + + + - - - - - - 1/16 din 1/8 or 1/4 din controller power connections for best results, the power should be relatively clean and within the specified limits. drawing power from heavily loaded circuits or from circuits that also power loads that cycle on and off should be avoided. it is recommended that power supplied to the controller be protected by a fuse or circuit breaker. 2 1 l n a c 100-240v 50/60 hz 5v a input connections for two wire rtds, install a copper sense lead of the same gauge and length as the rtd leads. attach one end of the wire at the probe and the other end to input common terminal. this is the preferred method as it provides complete lead wire compensation. if a sense wire is not used, then use a jumper. a temperature offset error will exist. the error may be compensated by programming a temperature offset. 12 11 10 tc- tc+ 12 11 dc+ vol ta ge/current dc- vol ta ge/current 12 11 control and alarm output connections vac rtd and resistance thermocouple and millivolt voltage and current load ac/dc power (-) load comm no no ac/dc power (+) al 2 al 1 ac/dc power load comm (-) no (+) ac power ssr comm (-) no (+) power unit + - ac ac alarm 1 and 2 * (1/16 din shown) op1/op2 output control relay * op1 output control logic/ssr * user input connections * user 1 + user 2 + - - * see unit label for terminal identification. rs 485 connections * d+ d- rs485 receiving device + - rs-485 0 v dc 24v 2 1 + _ vdc analog input control device comm (-) no (+) in + in - op1 output control analog *
8 front panel keys in the display loop, the d key is pressed to identify the display parameter and to advance to the next enabled display item. in all other loops, the d key is pressed to exit (or escape) directly to the first enabled display loop item. the p key is pressed to advance to the next parameter, to activate a selection/value change, and to enter the hidden loop when held for three seconds. the arrow keys are used to scroll through parameter selections/ values and in the configuration loop they are used to scroll to the appropriate parameter module. the f1/f2 keys are used to perform the function assigned to the key in configuration module 1. 8 4.0 r eview ing the f ron t k eys and d isplay bj f1 f2 d p 5.0 p ro gramming l oops : = 12 display/parameter/hidden loop reference table parameter description range/units factory setting sp x active setpoint value input range dependent 0 op1 control output 1 0 to 100% 0.0 op2 control output 2 0 to 100% 0.0 sprp setpoint ramp rate 0 to 999 display units/minute 0 pid pid group 1 or 2 1 r-s controller status run or stop run opof output power offset prop proportional band 0 to 9999 % display units 70 intt integral time 0 to 9999 seconds. 120 dert derivative time 0 to 9999 seconds per repeat 30 dint integration default default integration value 0.0 to 100.0% 0.0 al-1 alarm 1 value input range dependent 100 al-2 alarm 2 value input range dependent 200 al-3 alarm 3 value input range dependent 300 alrs alarm reset 1-2 ( b resets al1; j resets al2) alrs alarm reset 3 ( j resets al3) spsl setpoint select sp-1 or sp-2 sp-1 tune auto-tune start no or yes no ctrl control mode onof or pid pid trnf control mode transfer auto or user auto dev setpoint deviation display units code access code -125 to 125 0
9 code 1 to 125 hidden loop w/configura tion loop accessible pa rameter loop p p p main displa y loop d * if ploc is active, the configuration loop is not accessible . d hold p hold if code = 1 to 125 if code = 0 if code = -1 to -125 hidden loop code -1 to -125 p configura tion loop * * p display loop at power up, all display segments light, and then the programmed input type and the controllers software version will flash. then the temperature/process value is shown in the top display, and the bottom display will show the first display loop parameter configured as disp in configuration module 3. pressing the = key will advance the bottom display to the next display loop parameter. after viewing the last parameter, the display will loop back to the beginning of the display loop. if the bottom display is blank, it is because there are no parameters enabled for display in the display loop. changes made to parameters are effective immediately. parameters that can be displayed in the display loop include: sp op1 op2 sprp pid r-s dev pressing the : key will advance the bottom display to the parameter loop. parameter loop pressing the : key, while in the display loop, will advance the bottom display to the parameter loop. applicable items configured as para in configuration module 3 will be displayed in the parameter loop. each press of the : key will advance the bottom display to the next parameter loop parameter. after viewing the last parameter the display will loop back to the beginning of the parameter loop. pressing the : key while parameters are not configured as para in module 3, will cause the bottom display to remain in the display loop and advance to the first display loop parameter. pressing the = key will return the display to the display loop. to accept a parameter change, the : key must be pressed prior to pressing the = key. the unit will automatically exit to the display loop after approximately one minute of no key presses. parameters that can be displayed in the parameter loop include: sp op1 op2 sprp pid r-s opof prop intt dert dint al-1 al-2 al-3 alrs spsl hidden loop press and hold the : key for 3 seconds to enter the hidden loop. if a lockout code 1 thru 125 has been configured in module 3 ( code ), the correct access code will need to be entered prior to gaining access to the hidden loop. if a user input is configured for ploc (program disable), the user input will need to be de-activated prior to gaining access to the hidden loop. factory programmed setting for code = 0, and the user inputs are not configured. after accessing the hidden loop, each consecutive press of the : button will advance the bottom display through the applicable parameters selected as hide in module 3. the last item in the hidden loop is either code or cnfp . if a lockout code -1 thru -125 has been configured in module 3 ( code ), the correct access code will need to be entered prior to gaining access to the configuration loop. pressing : while cnfp is selected as no will exit to the first parameter in the display loop. to accept a parameter change, the : key must be pressed prior to pressing the = key. pressing the = key will return the display to the display loop. the unit will automatically exit to the display loop after approximately one minute of no key presses. parameters that can be displayed in the hidden loop include: sp op1 op2 sprp pid r-s opof prop intt dert dint al-1 al-2 al-3 alrs spsl tune ctrl trnf access code if the access code is set from 1 to 125, in lockout module 3??c , code will appear prior to gaining access to the hidden loop. by entering the proper code, access to the hidden loop is permitted. with the factory setting of 0, code will not appear in the hidden loop. ? ? ? c??? ? to ??? 9 if the access code is set from -1 to -125, in lockout module 3??c , code will appear as the last hidden loop item. by entering the proper code, access to the configuration loop is permitted (with a negative code value, the hidden loop can be accessed without the use of a code). with an active user input configured for program lock ( ???c ), code will not appear. an active user input configured for program lock ( ???c ) always locks out the configuration loop, regardless of access code. ? ? ? c??? ?? to ????
10 ? ? ? ???? setpoint ramp rate ? to ??? display units/minute * by ramping the setpoint at a controlled rate, the setpoint ramp rate can reduce sudden shock to the process and reduce overshoot on startup or after setpoint changes. when viewing setpoint value, and the setpoint is ramping, the setpoint will alternate between rsp x and the target setpoint value. the ramp rate is in least- significant (display units) digits per minute. a value of 0 disables setpoint ramping. once the ramping setpoint reaches the target setpoint, the setpoint ramp rate disengages until the setpoint is changed again. if the ramp value is changed during ramping, the new ramp rate takes effect. if the setpoint is ramping prior to starting auto-tune, the ramping will terminate when auto-tune starts. deviation and band alarms are relative to the target setpoint, not the ramping setpoint. a slow process may not track the programmed setpoint rate. at power up, the ramping setpoint is initialized to the current temperature/process value. active setpoint value ???? to ???? display units * control output 1 or 2 % output power ?.? to ???.? the parameter name indicates the active setpoint. the setpoint value can be changed by pressing the arrow keys. this parameter can be configured as read only in the display loop, but read/write in the hidden loop ( dspr ). select the second setpoint value by using the 1 or 2 key, user input, or the spsl parameter. both setpoint values are limited by the setpoint low and high limits in input module 1-in . while the controller is in automatic mode, this value is read only. when the controller is placed in manual mode, the value can be changed by pressing the arrow keys. for more details on % output power, see control mode explanations. ? ? ??? ??? controller status ??? ???? when in run mode, the control output(s) respond based on their corresponding % output value. when in stop mode, the control output(s) are disabled. integral wind-up can be reset by entering stop and then going back to run mode. ? ? ? ?i? pid group ? or ? select different pid parameters by choosing one of two different pid groups. the following parameters may be locked from display or made available in either the main display loop, the parameter loop or the hidden loop as configured in programming module 3-lc . values configured for dspr are read only when in the main display loop, but are writable when in the hidden loop. the value mnemonics are shown for each parameter, as well as the factory setting for each of the values. ? ? ?.? ???? output power offset when the integral time is set to zero, the power offset is used to shift the proportional band to compensate for errors in the steady state. if integral action is later invoked, the controller will re-calculate the internal integral value to provide bumpless transfer and output power offset will not be necessary. ?.? to ???.? % power ? ? ? ?? x ? ? ?.? ??? ? ? ?.? ??? ? ? 7? ???? proportional band ? to ??? display units * the proportional band should be set to obtain the best response to a process disturbance while minimizing overshoot. for more information, see control mode and pid tuning explanations. ? ? ??? i??? integral time ? to ???? seconds integral action shifts the center point position of the proportional band to eliminate error in the steady state. the higher the integral time, the slower the response. the optimal integral time is best determined during pid tuning. ? ? 3? ???? derivative time ? to ???? seconds derivative time helps to stabilize the response, but too high of a derivative time, coupled with noisy signal processes, may cause the output to fluctuate too greatly, yielding poor control. setting the time to zero disables derivative action. ? ? ?.? ?i?? integration default ?.? to ???.? % output power the integration default is the default integration value of integral control. when the process value enters the proportional band, the pxu will take the integration default as the default control output of integral control. the value is determined at auto-tune. d isplay /p arameter /h idden l oop p arameter d escriptio ns * range/decimal position is programming dependent.
11 ? ? ???? ???? control mode transfer ???? ???? in automatic mode ( ???? ), the percentage of output power is automatically determined by the controller based on the auto control mode selected. in manual/user mode ( ???? ), the percentage of output power is adjusted manually by the user. the control mode can also be transferred through the 1 or 2 key or user input. for more information, see control mode explanations. ? ? ??v setpoint deviation value setpoint deviation is the number of display units that the input display varies from the active setpoint value. this is a read only value. ? ? ?? ???? auto-tune start ?? ??? the auto-tune procedure sets the proportional band, integral time, derivative time, integration default, and relative gain (heat/cool) values appropriate to the characteristics of the process. this parameter allows front panel starting ??? or stopping ?? of auto-tune. for more information, see pid tuning explanations. 11 6.0 p ro gramming : c o nfiguration l oop loop hidden display loop pa rameters input module module output pa rameters lockout pa rameters module communica tio n p arameters module fa ct or y serv ice module alarm p arameters module p configuration loop to access the configuration loop, press the up key when c??? / ?? is displayed in the hidden loop. in the configuration loop, c??? will alternate with the parameter number in the bottom display and the temperature/process value is shown on the top display. the arrow keys are used to select the parameter module (1-9). to enter a specific module press : while the module number is displayed. in the configuration loop, c??? will alternate with the parameter number in the bottom display and the temperature/process value is shown on the top display. after entering a parameter module, press : to advance through the parameters in the module. to change a parameters selection/value, press the arrow keys while the parameter is displayed. in the modules, the top display shows the parameter name, and the bottom display shows the selection/value. use : to enter and store the selection/value that has been changed. if a power loss occurs before returning to the display loop, the new values should be checked for accuracy. at the end of each module, the controller returns to c??? / ?? . at this location, pressing : again returns the display to the the display loop. pressing the b key allows re-entrance to the configuration loop. whenever = is pressed, ??? momentarily appears, the current parameter change will be aborted, and the controller returns to the display loop. ? ? ?i? c??? auto control mode pid or onof select the desired control mode. when onof is selected, the pid parameters are not available. ? ? ???? ???? setpoint select ???? or ???? the spsl function allows the operator to select setpoint 1 or setpoint 2 as the active setpoint value. alarm reset this parameter provides for the ability to individually reset active alarms from the front panel, without using 1 or 2 function keys. when alrs is displayed with 1-2 on bottom display, pressing the b key, under the 1, will reset an active alarm 1. pressing the j key, under the 2, will reset an active alarm 2. when alrs is displayed with 3 on the bottom display, pressing the j key, under the 3, will reset an active alarm 3. all alarms may be simultaneously reset from the front panel by using user 1 or 2 programmed for alrs . ??? 3 ? ? ??? ???s
12 12 7.1 module 1 - i npu t p arameters ( 1-in ) input type temp scale decimal resolution digital filtering band filter value 1 display shift/ offset value 2 display setpoint low limit setpoint high limit p p input 1 user user input 2 function f1 key f2 key function
cold junction programming/model dependent . parameter menu input type temperature scale ?? fahrenheit ?c celsius select the input type that corresponds to the input sensor. select either degrees fahrenheit or celsius. if changed, check related parameter values. * temperature input only. decimal resolution ? to ?.? for temperature inputs ? to ?.??? for process inputs select whole degrees, or tenths of degrees for temperature display, setpoint values, and related parameters. for thermocouple types r, s, and b, only whole degrees of resolution is available. for process inputs up to three decimal point resolution is available. input filter band ? to ??? display units the filter will adapt to variations in the input signal. when the variation exceeds the input filter band value, the digital filter disengages and a noise discrimination filter engages that rejects noise bursts. when the variation becomes less than the band value, the digital filter engages again. the value of the band is in display units. setpoint low limit ???? to ???? input range dependent the controller has a programmable low setpoint limit value to restrict the range of the setpoint. set the limit so that the setpoint value cannot be set below the safe operating area of the process. digital filtering ? = least to ?? = most the filter is an adaptive digital filter that discriminates between measurement noise and actual process changes. the equation for digital filtering is: pv = where: n = digital filtering selection if the signal is varying greatly due to measurement noise, increase the filter value. decrease the filter value for quicker controller response. last displayed pv [ n + measured value n + 1 display value scaling point 1 ???? to ???? enter the first coordinate zero display value associated with the lower range (0v/ma, 4ma) of the input signal, by using the arrow keys. display value scaling point 2 ???? to ???? enter the second coordinate full scale display value associated with the upper range (5v, 10v, etc) of the input signal, by using the arrow keys. * process input only. selection type selection type ud, k tc udu, txk tc ud+ j tc s rtd 392 udu t tc s rtd 385 ud e tc o* rtd 672 ud/ n tc d6 cu 50 uds r tc 4v 0-5 volt ud4 s tc v 0-10 volt udc b tc 0-20 ma ud- l tc 4-20 ma ud6 u tc v 0-50 mv shift/offset ??? to ??? display units this value offsets the controllers display value by the entered amount. this is useful in applications in which the sensor does not provide an accurate signal. ???? ???? ?? ?c?? ? ?c?? 8 ???? ? b??? ? ???? ? ???? ???? ???? ??48 ???? shaded parameters are programming/model dependent.
13 setpoint high limit ???? to ???? input range dependent the controller has a programmable high setpoint limit value to restrict the range of the setpoint. set the limit so that the setpoint value cannot be set above the safe operating area of the process. ? ? ???? ???i 13 user input function (model dependent) the controller performs the programmed user input selection (user input option models), when the user terminal + is connected to user terminal -. selection function description none no function no function is performed. r-s controller status this function can be used to start ( run ) and stop ( stop ) the control function of the controller. when in stop mode, control output 1 and 2 are disabled and output calculations are suspended. spsl setpoint 1 or 2 select this function selects (maintained action) setpoint 1(user inactive) or setpoint 2 (user active) as the active setpoint. trnf auto/manual select this function selects (maintained action) automatic (user inactive) or manual control (user active). ploc program lock the configuration loop is locked, as long as user input is active (maintained action). iloc integral action lock the integral action of the pid computation is disabled (suspended), as long as activated (maintained action). sprp setpoint ramp disable the setpoint ramping feature is disabled, as long as activated (maintained action). any time the user input is activated with a ramp in process, ramping is aborted. alrs reset all alarms this function can be used to reset all of the alarms as long as activated (maintained action). active alarms are reset until the alarm condition is cleared and triggered again (momentary action). a1rs reset alarm 1 this function can be used to reset alarm 1 as long as activated (maintained action). an active alarm is reset until the alarm condition is cleared and triggered again (momentary action). a2rs reset alarm 2 this function can be used to reset alarm 2 as long as activated (maintained action). an active alarm is reset until the alarm condition is cleared and triggered again (momentary action). a3rs reset alarm 3 this function can be used to reset alarm 3 as long as activated (maintained action). an active alarm is reset until the alarm condition is cleared and triggered again (momentary action). f key function the controller performs the selected f1 key function, when 1 is pressed. selection function description none no function no function is performed. r-s controller status this function can be used to start ( run ) and stop ( stop ) the control function of the controller. when in stop mode, control output 1 and 2 are disabled and output calculations are suspended. spsl setpoint 1 or 2 select this function toggles (momentary action) the controller between setpoint 1 and setpoint 2. trnf auto/manual select this function toggles (momentary action) the controller between automatic and manual control. alrs reset all alarms this function can be used to reset all of the alarms when activated (momentary action). the alarms will remain reset until the alarm condition is cleared and triggered again. a1rs reset alarm 1 this function can be used to reset alarm 1 when activated (momentary action). the alarm will remain reset until the alarm condition is cleared and triggered again. a2rs reset alarm 2 this function can be used to reset alarm 2 when activated (momentary action). the alarm will remain reset until the alarm condition is cleared and triggered again. a3rs reset alarm 3 this function can be used to reset alarm 3 when activated (momentary action). the alarm will remain reset until the alarm condition is cleared and triggered again. cold junction compensation on off this parameter turns the internal cold junction compensation on or off. for most applications, cold junction compensation should be enabled ( on ). this parameter does not appear if a process input type is selected. ? ? ???? ???? ? ? ? ? ???? ???? ??i? ??i? ? ? ?? cjc ? ? ???? ???? shaded parameters are programming/model dependent.
14 op1 cycle time ?.? to ???.? seconds op2 cycle time ?.? to ???.? seconds the cycle time is entered in seconds with one tenth of a second resolution. it is the total time for one on and one off period of an op1 time proportioning control output. with time proportional control, the percentage of power is converted into an output on-time relative to the cycle time value set. (if the controller calculates that 65% power is required and a cycle time of 10.0 seconds is set, the output will be on for 6.5 seconds and off for 3.5 seconds.) for best control, a cycle time equal to one-tenth or less, of the natural period of oscillation of the process is recommended. when op1 is an analog output, the cycle time is the analog output update time. a cycle time selection of 0.0 will disable the output. control action r = reverse acting d = direct acting a = alarm 3 this determines the action for each output. when programmed as r1d2 , output 1 will function in the reverse mode (heating) and output 2 will function in the direct mode (cooling). when selected as a, op2 is configured as the alarm 3 output and the alarm 3 settings will become accessible in the alarm module configuration menu and op2 parameters will no longer be available. output 1 power lower limit ?.? to ???.? % this parameter may be used to limit controller power at the lower end due to process disturbances or setpoint changes. enter the safe output 1 power limit for the process. when the controller is in user or onof control mode or auto tune, this limit does not apply. output 1 power upper limit ?.? to ???.? % this parameter may be used to limit controller power at the upper end due to process disturbances or setpoint changes. enter the safe output 1 power limit for the process. when the controller is in user or onof control mode, this limit does not apply. input fail op1 power level this parameter sets the power level in the event of an input failure (open tc/ rtd or shorted rtd). manual ( user ) control overrides the input fail preset. the cycle time is entered in seconds with one tenth of a second resolution. it is the total time for one on and one off period of an op2 time proportioning control output. with time proportional control, the percentage of power is converted into an output on-time relative to the cycle time value set. (if the controller calculates that 65% power is required and a cycle time of 10.0 seconds is set, the output will be on for 6.5 seconds and off for 3.5 seconds.) for best control, a cycle time equal to one-tenth or less, of the natural period of oscillation of the process is recommended. when op2 is an analog output, the cycle time is the analog output update time. a cycle time selection of 0.0 will disable the output. 7.2 module 2 - o u t pu t p arame t ers ( 2-op ) op1 cycle time control action control mode output 1 power analog low scaling output 1 input fail op1 analog high scaling output 1 time op2 cycle low limith igh limit power output 1 power level output 2 power low limit p p on/off control input fail op2 power level output 2 deadband relative gain output 2 hysteresis power high limit output 2 pr ogramming/model dependent. parameter menu ?.? to ???.? % control mode select the control output(s) mode of operation. this parameter can also be selected in the hidden loop when configured in module 3. ?l?? ???c ?i? ???? ?i? c??? ?.? c?c? ?.? ???? ???.? ???? ?.? i??? ?.? c?c? output 1 analog low scaling the output power level that corresponds with 0 v or 4 ma analog output. ???.? to ???.? ?.? ???? output 1 analog high scaling the output power level that corresponds with 10 v or 20 ma analog output. an inverse action can be achieved by reversing the high and low scaling points. ???.? to ???.? ???.? ???? shaded parameters are programming/model dependent.
15 relative gain ?.?? to ??.?? this defines the gain of op2 relative to op1 . it is generally set to balance the effects of cooling to that of heating( r1d2 ) or vice versa ( d1r2 ). this is illustrated in the heat/cool relative gain figures below. after completion of auto-tune, this parameter will be changed. deadband/overlap ???? to ???? this defines the deadband area between the bands (positive value) or the overlap area in which both heating and cooling are active (negative value). if a heat/cool overlap is specified, the percent output power is the sum of the heat power and the cool power. the function of deadband/overlap is illustrated in the control mode explanations. ? ? ?.?? ???? ? ? ? ?b?? output 2 power lower limit ?.? to ???.? % this parameter may be used to limit controller power at the lower end due to process disturbances or setpoint changes. enter the safe output 2 low power limit for the process. when the controller is in user or onof control mode, this limit does not apply. output 2 power upper limit ?.? to ???.? % this parameter may be used to limit controller power at the upper end due to process disturbances or setpoint changes. enter the safe output 2 high power limit for the process. when the controller is in user or onof control mode, this limit does not apply. input fail op2 power level this parameter sets the power level in the event of an input failure (open tc/ rtd or shorted rtd). manual ( user ) control overrides the input fail preset. ?.? to ???.? % tempera ture cool hea t setpoint 100% op2 100% op1 2x propor tional band % output power op1 100% setpoint deadband nega tive va lue cool rela tive gain = .5 .5 1 2 rela tive gain op2 100% tempera ture hea t % output power temperat ure hea t setpoint 100% op2 100% op1 deadband positive v alue rela tive gain 21 .5 rela tive gain = .5 cool % output power heat/cool relative gain figures deadband/overlap = 0 deadband/overlap < 0 deadband/overlap > 0 on/off control hysteresis ? to ??? the on/off control hysteresis (balanced around the setpoint) eliminates output chatter. the control hysteresis value affects both op1 and op2 control. the hysteresis band has no effect on pid control. on/off control hysteresis is illustrated in the control mode explanations. ? ? ?.? ???? ? ? ???.? ???? ? ? ?.? i??? ? ? ? c??? shaded parameters are programming/model dependent.
16 16 access code ???? to ??? 7.3 module 3 - l ockout p arameters ( 3-lc ) setpoint output 1 power output 2 power controller status pid group ramp rate setpoint output power offset proportional band integral time derivative time integratio n d efault alarm 1 value alarm 2 value s etpoint select alarm reset value alarm 3 auto-tune start control mode deviation value control mode transfer access code p p programming/model dependent. parameter menu selection description disp display: accessible in display loop. para parameter: accessible in parameter loop hide hide: accessible in hidden loop. loc locked: not accessible in loops. dspr display/read: read only in display loop, but read/write in hidden loop. the following parameters can be configured for the selections described above. see programming loops section for a description of loops and parameters. parameter selection factory setting sp disp , parr , hide , loc , dspr disp op1 disp , parr , hide , loc , dspr parr op2 disp , parr , hide , loc , dspr parr sprp disp , parr , hide , loc , dspr parr pid disp , parr , hide , loc , dspr parr r-s disp , parr , hide , loc , dspr disp opof parr , hide , loc parr prop parr , hide , loc parr intt parr , hide , loc parr dert parr , hide , loc parr dint parr , hide , loc loc al-1 parr , hide , loc parr al-2 parr , hide , loc parr al-3 parr , hide , loc parr alrs parr , hide , loc parr spsl parr , hide , loc parr tune hide , loc hide ctrl hide , loc hide trnf hide , loc hide dev disp , loc disp parameters may not appear in selected loop if not applicable to current operating mode. ex. 1. if a?t2 = none , al-2 will not be displayed in selected loop. 2. if ctrl = onof , pid parameters will not be displayed in selected loop. 0 full access to display, hidden, and configuration loops -1 to -125 code necessary to access configuration loop only. * 1 to 125 code necessary to access hidden and configuration loops. * * if ploc is active, configuration loop is not accessible. ? c??? shaded parameters are programming/model dependent.
17 17 7.4 m o dule 4 - a larm p arame t ers ( 4-al ) (o ptio nal ) alarm 1 reset mode alarm 1 action alarm 1 annunciator alarm 1 standby alarm 2 reset mode alarm 2 action alarm 2 annunciator alarm 2 standby input fai l alarm 1 action alarm 1 value alarm 2 value p p change display color
alarm 3 value alarm hysteresi s input fai l alarm 3 action alarm 3 standby alarm 3 action alarm 3 reset mode alarm 3 annunciator input fail alarm 2 action programming/model dependent. parameter menu off on al + ?hys al al - ?hys off absolute high acting (balanced hys) hys trigger points alarm state alarm state off on hys sp + al sp off trigger points deviation high acting (al > 0) alarm state hys sp - al sp sp + al hys trigger points on off off on on band inside acting off on al + ?hys al al - ?hys off absolute low acting (balanced hys) trigger points hys alarm state alarm state offo n hys sp - al sp off trigger point s deviation low acting (al > 0) alarm state off on hys al al - hys off trigger points absolute high acting (unbalanced hys) alarm state off on hys al + hys al off trigger points absolute low acting (unbalanced hys) alarm state on off hys sp + (-al) sp on trigger points deviation high acting (al< 0) alarm state on hys sp - al sp off sp + al on hys off off trigger points band outside actin g alarm action figures note: hys in the above figures refers to the alarm hysteresis. available alarm actions none none no action, the remaining alarm parameters are not available. abhi absolute high (balanced hysteresis) the alarm energizes when the process value exceeds the alarm value + 1/2 the hysteresis value. ablo absolute low (balanced hysteresis) the alarm energizes when the process value falls below the alarm value -1/2 the hysteresis value. auhi absolute high (unbalanced hysteresis) the alarm energizes when the process value exceeds the alarm value. aulo absolute low (unbalanced hysteresis) the alarm energizes when the process value falls below the alarm value. d-hi deviation high the alarm value tracks the setpoint value d-lo deviation low the alarm value tracks the setpoint value b-in band acting (inside) the alarm value tracks the setpoint value b-ot band acting (outside) the alarm value tracks the setpoint value abhi - absolute high acting (bal anced hys) ablo - absolute low acting (bal anced hys) auhi - absolute high acting (unbal anced hys) aulo - absolute low acting (unbal anced hys) d-hi - deviation high acting (al>0 ) d-hi - deviation high acting (al<0 ) b-ot - band outside acting b-in - inside acting d-lo - deviation low acting (al>0 )
18 18 alarm 2 standby ??? standby on ?? standby off standby prevents nuisance (typically low level) alarms after a power up. after powering up the controller, the process must leave the alarm region (enter normal non-alarm area of operation). after this has occurred, the standby is disabled and the alarm responds normally until the next controller power up. alarm 2 annunciator ??? normal ??v reverse with normal selection, the alarm annunciator indicates an on alarm output 2. with reverse selection, the alarm annunciator indicates an off alarm output. alarm 2 reset mode ???? automatic ???? latched in automatic mode, an energized alarm turns off automatically after the temperature/process value leaves the alarm region. in latched mode, an energized alarm requires an 1 / 2 key or user input alarm reset to turn off. after an alarm reset, the alarm remains reset off until the trigger point is crossed again. alarm 2 value the alarm values are entered as process units or degrees. they can also be entered in the parameter or hidden loops. when the alarm is configured as deviation or band acting, the associated output tracks the setpoint as it is changed. the value entered is the offset or difference from the setpoint. ???? to ???? alarm 2 action select the action for the alarm. see alarm action figures at the beginning of this section for a visual explanation. none abhi ablo auhi aulo d-hi d-lo b-in b-ot ? ? ???? ?c?? ? ? ??? ???? ? ? ???? ???? ? ? ?? ??b? ? ? ??? ???? input fail alarm 2 action ? ? ??? i??? alarm 1 annunciator with normal selection, the alarm annunciator indicates an on alarm output 1. with reverse selection, the alarm annunciator indicates an off alarm output. alarm 1 reset mode in automatic mode, an energized alarm turns off automatically after the temperature/process value leaves the alarm region. in latched mode, an energized alarm requires an 1 / 2 key or user input alarm reset to turn off. after an alarm reset, the alarm remains reset off until the trigger point is crossed again. ??? normal ??v reverse ???? automatic ???? latched alarm 1 action select the action for the alarm. see alarm action figures at the beginning of this section for a visual explanation. b-ot b-in d-lo d-hi aulo auhi ablo abhi none ? ? ???? ?c?? ? ? ??? lit1 ? ? ???? ???? alarm 1 standby standby prevents nuisance (typically low level) alarms after a power up. after powering up the controller, the process must leave the alarm region (enter normal non-alarm area of operation). after this has occurred, the standby is disabled and the alarm responds normally until the next controller power up. alarm 1 value the alarm values are entered as process units or degrees. they can be entered in the parameter or hidden loops, when enabled in 3-lc . when the alarm is configured as deviation or band acting, the associated output tracks the setpoint as it is changed. the value entered is the offset or difference from the setpoint at which the alarm condition will occur. ??? standby on ?? standby off ???? to ???? ? ? ?? ??b? ? ? ??? ???? input fail alarm 1 action ? ? ??? i??? alarm 3 annunciator with normal selection, the alarm annunciator indicates an on alarm output 3. with reverse selection, the alarm annunciator indicates an off alarm output. ??? normal ??v reverse alarm 3 action select the action for the alarm. see alarm action figures at the beginning of this section for a visual explanation. b-ot b-in d-lo d-hi aulo auhi ablo abhi none ? ? ???? ?c?3 ? ? ??? lit3 alarm 3 parameters in this module are programming dependent. they are available only when output 2 control action is programmed as alarm. ?? ??? select the alarm action in the event of a detected input failure (open tc/rtd or shorted rtd). ?? ??? select the alarm action in the event of a detected input failure (open tc/rtd or shorted rtd). shaded parameters are programming/model dependent.
19 alarm hysteresis the hysteresis value is either added to or subtracted from the alarm value, depending on the alarm action selected. the same value applies to both alarms. see the alarm action figures at the beginning of this section for a visual explanation of how alarm actions are affected by the hysteresis. ? to ??? change color select alarm(s) to change input display color intensity when appropriate alarm(s) are triggered. al-3 al-2 al-1 any off ? ? ??? c?l? ? ? ? ???? alarm 3 standby standby prevents nuisance (typically low level) alarms after a power up. after powering up the controller, the process must leave the alarm region (enter normal non-alarm area of operation). after this has occurred, the standby is disabled and the alarm responds normally until the next controller power up. alarm 3 value the alarm values are entered as process units or degrees. they can also be entered in the parameter or hidden loops. when the alarm is configured as deviation or band acting, the associated output tracks the setpoint as it is changed. the value entered is the offset or difference from the setpoint. alarm 3 reset mode in automatic mode, an energized alarm turns off automatically after the temperature/process value leaves the alarm region. in latched mode, an energized alarm requires an 1 / 2 key or user input alarm reset to turn off. after an alarm reset, the alarm remains reset off until the trigger point is crossed again. ???? automatic ???? latched ??? standby on ?? standby off ???? to ???? 19 7.5 m o dule 7 - s erial c o mmunicatio ns p arameters ( ???c ) type data baud comunications type baud rate data bit 7-sc cnfp parb parity bit addr unit addres s p p parameter menu 38k4 ???? 8 ???? data bit no ???? parity bit 2400 ?600 4?00 1?k2 3?k4 7 ? no even odd baud rate set the baud rate to match that of other serial communications equipment. normally, the baud rate is set to the highest value that all of the serial communications equipment is capable of transmitting. select either 7 or 8 bit data word lengths. set the word length to match that of other serial communication equipment. if rtu is selected as the communication type, data defaults to 8. set the parity bit to match that of the other serial communications equipment used. 247 ???? unit address 1 to 247 select a unit address that does not match an address number of any other device on the serial link. ??? ???? communications type ??? modbus rtu ??c modbus ascii select the desired communications protocol. ? ? ???? ???3 ? ? ?? ??b3 ? ? 3?? ???3 input fail alarm 3 action ? ? ??? i??3 ?? ??? select the alarm action in the event of a detected input failure (open tc/rtd or shorted rtd). shaded parameters are programming/model dependent.
20 serial communications when using a pxu with rs485 communications option, the pxu will support modbus communications. unit configuration, as well as data interrogation, can be accomplished through modbus communications. the pxu allows for 32 read / write registers. a complete list of modbus registers is available at the end of this document. crimson software crimson is a windows ? based program that allows configuration of the pxu controller from a pc. crimson offers standard drop-down menu commands to make it easy to program the pxu controller, the pxu database can then be saved in a pc file for future use. the crimson 2.0 software is available at www. redlion.net. an rs-485 pc card or usb to rs485 converter and cabling is required. prior to downloading or extracting the database, the pxu must be set to modbus rtu communications type. the proper communications port, baud rate, and unit address must be configured in the link, options dialog and must match the baud rate and unit address configured in the pxu serial communications module ( 7-sc ). pxu configuration using crimson 1. install crimson software, available for download at www.redlion.net. 2. connect communications cable from pxu to pc. 3. supply power to pxu. 4. configure serial parameters as modbus rtu ( rtu ), 38,400 baud, address 247. 5. create a new file (file, new) or open an existing pxu database within crimson. 6. configure crimson 2 link options (link, options) to the serial port which the communication cable is attached (in step 2). 7. select update (link, update). pxu frequently used modbus registers only frequently used registers are shown below. the entire modbus register table can be found at the end of this document. the following is an example of the necessary query and corresponding response for holding register 2. in this example register 2 is the decimal value 123. query: 01 03 00 01 00 01 d5 ca response: 01 03 02 00 7b f8 67 notes: 1. the pxu registers can be read as holding (4x) or input (3x) registers. 2. the pxu should not be powered down while parameters are being changed. doing so may result in an in-complete write to the non-volatile memory and produce checksum errors. register (4x) register name low limit high limit factory setting access comments 1 process value (pv) n/a n/a n/a read 1 = 1 display unit 2 active setpoint (sp) -999 9999 0 read/write 1 = 1 display unit 3 setpoint 1 (sp1) -999 9999 0 read/write 1 = 1 display unit 4 setpoint 2 (sp2) -999 9999 0 read/write 1 = 1 display unit 5 setpoint deviation n/a n/a n/a read only 1 = 1 display unit 6 alarm 1 value -999 9999 100 read/write 1 = 1 display unit 7 alarm 2 value -999 9999 200 read/write 1 = 1 display unit 8 alarm 3 value -999 9999 300 read/write 1 = 1 display unit 9 output power 1 0 1000 0 read/write 1 = 0.1%; writable when in manual mode only. 10 output power 2 0 1000 0 read/write 1 = 0.1%; writable when in manual mode only. 11 pb proportional band (active) 1 999(.9) or 9999 (process) 70 read/write 1 = 1 display unit 12 integral time (active) 0 9999 120 read/write 1 = 1 second 13 derivative time (active) 0 9999 30 read/write 1 = 1 second 14 integration default (active) 0 1000 0 read/write 1 = 0.1 % output power 15 pid parameter set selection 0 1 0 read/write 0 = pid set 1, 1 = pid set 2 16 auto-tune start 0 1 0 read/write 0 = no; 1 = yes 17 control mode transfer (auto/manual) 0 1 0 read/write 0 = automatic (pid), 1 = user (manual mode) 18 controller status 0 1 1 read/write 0: stop, 1: run 19 setpoint select 0 1 0 read/write 0=sp1, 1=sp2 20 sp ramp rate 0 9999 0 read/write 1 = 1 display unit/minute 21 led status n/a n/a n/a read only b0: alm3, b1: alm2, b2: f, b3: c, b4: alm1, b5: out2, b6:out1, b7: at 22 pushbutton status n/a n/a n/a read only b1: f2, b2: down, b3: p, b5: f1, b6: up, b7: d; 0 = key pressed, 1 = key not pressed 23 alarm reset 0 7 0 write b0: reset alm1, b1: reset alm2, b3: reset alm3 24 setpoint ramping disable 0 1 0 read/write 0 = enabled, 1 = disabled 25 integral action disable 0 1 0 read/write 0 = enabled, 1 = disabled
21 7.5 m o dule 9 f a cto ry s ervi c e o pera t i o ns ( 9-fs ) factory service code p parameter menu ?? c??? restore factory settings press and hold b to display c??? ?? . press : . the controller will display ???? and then return to c??? . press = to return to the display loop. this will overwrite all user settings with factory settings. for further technical assistance, contact technical support. t roubleshoot ing problem cause remedies no display 1. power off. 2. brown-out condition. 3. loose connection or improperly wired. 4. controller not fully seated into case. 1. check power. 2. verify power reading. 3. check connections. 4. check installation. controller not working 1. incorrect setup parameters. 2. stop mode. 1. check setup parameters. 2. change to run mode. . . . or ?. . . in display 1. display value exceeds 4 digit display range. 2. defective or miscalibrated cold junction circuit. 3. loss of setup parameters. 4. internal malfunction. 1. check input parameters (input type). 2. change display resolution/scaling. 3. recalibrate controller. (consult factory) 4. consult factory ???? in display 1. probe disconnected. 2. broken or burned-out probe. 3. corroded or broken terminations. 4. excessive process temperature. 1. check probe wire/change probe. 2. check sensor input type selection. 3. perform cold junction calibration. (consult factory) 4. perform input calibration. (consult factory) ???? in top display 1. input exceeds range of controller. 2. temperature exceeds range of input probe. 3. defective or incorrect transmitter or probe. 4. excessive high temperature for probe. 5. loss of setup parameters. 1. check input parameters. 2. change to input sensor with a higher temperature range. 3. replace transmitter or probe. 4. reduce temperature. 5. perform input calibration. (consult factory) ???? in top display 1. input is below range of controller. 2. temperature below range of input probe. 3. defective or incorrect transmitter or probe. 4. excessive low temperature for probe. 5. loss of setup parameters. 1. check input parameters. 2. change to input sensor with a lower temperature range. 3. replace transmitter or probe. 4. raise temperature. 5. perform input calibration. (consult factory) ???? in display 1. rtd probe shorted. 1. check wiring and/or replace rtd probe. controller sluggish or not stable 1. incorrect pid values. 2. incorrect probe location. 1. see pid control. 2. evaluate probe location. cannot access programming 1. active user input, programmed for ploc. 2. incorrect access code entered. 1. deactivate user input. 2. enter proper access code at code 0 prompt. ( 111 or -111 = universal access code)
22 22 on/off control in this control mode, the process will constantly oscillate around the setpoint value. the on/off control hysteresis (balanced around the setpoint) can be used to eliminate output chatter. output control action can be set to reverse for heating (output on when below the setpoint) or direct for cooling (output on when above the setpoint) applications. on/off control - reverse or direct acting figures note: chys in the on/off control figures refers to the on/off control hysteresis ( c??? ) in parameter module 2. for heat and cool systems, control action parameter is used to reverse (r) for heating and direct (d) for cooling. the deadband/overlap in cooling sets the amount of operational deadband or overlap between the outputs. the setpoint and the on/off control hysteresis applies to both op1 and op2 outputs. the hysteresis is balanced in relationship to the setpoint and deadband value. c on trol m ode e xplana tio ns on output (d) : on sp off input deadband/overlap (db2) = 0 sp + 1/2 chys sp - 1/2 chys off off output (r) : on chys sp sp + 1/2 (db-2) - 1/2 chys sp + 1/2 (db-2) + 1/2 chys sp - 1/2 (db-2) + 1/2 chys sp - 1/2 (db-2) - 1/2 chys deadband/overlap (db-2) < 0 db-2 chys chys on off off on output (r) : output (d) : db-2 output (r) : output (d) : sp - 1/2 (db-2) + 1/2 chys sp - 1/2 (db-2) - 1/2 chys off sp on off off on chys off deadband/overlap (db-2) > 0 sp + 1/2 (db-2) - 1/2 chys sp + 1/2 (db-2) + 1/2 chys chys on on input input sp + 1/2 (db-2) sp - 1/2 (db-2) sp + 1/2 (db-2) sp - 1/2 (db-2) on/off control - heat/cool output figures pid control in pid control, the controller processes the input and then calculates a control output power value by use of proportional band, integral time, and derivative time control algorithm. the system is controlled with the new output power value to keep the process at the setpoint. the control action for pid control can be set to reverse for heating (output on when below the setpoint) or direct for cooling (output on when above the setpoint) applications. for heat and cool systems, the heat and cool outputs are both used. the pid parameters can be established by using auto-tune, or they can be manually tuned to the process. sp time p & i p & i & d p only p & d input typical pid response curve off output (d) : sp off input direct acting sp - 1/2 chys sp + 1/2 chys on off output (r) : sp off input reverse acting sp - 1/2 chys sp + 1/2 chys on
23 23 time proportional pid control in time proportional applications, the output power is converted into output on time using the cycle time. for example, with a four second cycle time and 75% power, the output will be on for three seconds (4 0.75) and off for one second. the cycle time should be no greater than 1/10 of the natural period of oscillation for the process. the natural period is the time it takes for one complete oscillation when the process is in a continuously oscillating state. linear pid control in linear pid control applications, op1 provides a linear output signal that is proportional to the calculated op1 value (% output power). the pxu allows the user to program the %op value at which the analog low ( an1l ) and high ( an1h ) output signal will be produced. the analog output will then be proportional to the pid calculated % output power. for example, with 0 to 10 vdc output configured as 0 ( an1l ) to 100 ( an1h ) an op1 value of 75% provides an analog output of 7.5 vdc. cycle time will determine the update time of the linear ouput signal. automatic control mode in automatic control mode, the percentage of output power is automatically determined by pid or on/off calculations based on the setpoint and process feedback. for this reason, pid control and on/off control always imply automatic control mode. manual control mode in user control mode, the controller operates as an open loop system, and does not use the setpoint or process feedback. the user adjusts the percentage of power through the op1 or op2 parameter to control the power for each output. the low and high output power limits are ignored when the controller is in manual. mode transfer when transferring the controller mode between automatic and user/manual, the controlling outputs remain constant, exercising true bumpless transfer. when transferring from manual to automatic, the power initially remains steady, but integral action corrects (if necessary) the closed loop power demand at a rate proportional to the integral time. p id t uning e xplana tio ns auto-tune auto-tune is a user-initiated function that allows the controller to automatically determine the proportional band, integral time, derivative time, integration default, and relative gain (heat/cool) values based upon the process characteristics. the auto-tune operation cycles the controlling output(s) at the setpoint. the nature of these oscillations determines the settings for the controllers parameters. prior to initiating auto-tune, it is important that the controller and system be first tested. this can be accomplished in on/off control or manual control mode. if there is a wiring, system or controller problem, auto-tune may give incorrect tuning or may never finish. auto-tune may be initiated at start-up, from setpoint or at any other process point. however, ensure normal process conditions (example: minimize unusual external load disturbances) as they will have an effect on the pid calculations. start auto-tune below are the parameters and factory settings that affect auto-tune. if these setting are acceptable then auto-tune can be started just by performing three steps. if changes are needed, then they must be made before starting auto-tune. display parameter factory setting module type input type t?-j curr 1-in opac output control action 2-op chys on/off control hysteresis 2 (temp) 20 (temp) 2-op tune auto-tune access hide 3-lc 1. enter the setpoint value in the display loop. 2. set the on/off control hysteresis ( chys ) to a value that is appropriate for the process. 3. initiate auto-tune by changing ???? to ??? in the hidden loop, and then press : . au to-tune progress the controller will oscillate the controlling output(s) for four cycles. the at annunciator will flash during this time. parameter viewing is permitted during auto-tune. the time to complete the auto-tune cycles is process dependent. the controller should automatically stop auto-tune and store the calculated values when the four cycles are complete. if the controller remains in auto-tune unusually long, there may be a process problem. auto-tune may be stopped by entering ?? in ???? . time input aut1 aut4 auto-tune start setpoint auto-tune complete, pi d settings are calculated and loaded into memory aut2 aut3 on off on off output (r) : phase auto-tune operation (reverse acting)
24 24 pid adjustments in some applications, it may be necessary to fine tune the auto-tune calculated pid parameters. to do this, a chart recorder or data logging device is needed to provide a visual means of analyzing the process. compare the actual process response to the pid response figures with a step change to the process. make changes to the pid parameters in no more than 20% increments from the starting value and allow the process sufficient time to stabilize before evaluating the effects of the new parameter settings. in some unusual cases, the auto-tune function may not yield acceptable control results or induced oscillations may cause system problems. in these applications, manual tuning is an alternative. process response extremes manual tuning a chart recorder or data logging device is necessary to measure the time between process cycles. this procedure is an alternative to the controllers auto- tune function. it will not provide acceptable results if system problems exist. 1. set the proportional band ( ???? ) to 10.0% of the input range for temperature inputs and 100.0% for process inputs. 2. set both the integral time ( i??? ) and derivative time ( ???? ) to 0 seconds. 3. set the output cycle time in output module ???? to no higher than one-tenth of the process time constant (when applicable). 4. place the controller in manual ( ???? ) control mode ( ???? ) and adjust the % power to drive the process value to the setpoint value. allow the process to stabilize after setting the % power. note: ???? must be set to ???? in parameter lockouts module 3??c . 5. place the controller in automatic ( ???? ) control mode ( ???? ). place the value of % power into the output power offset ( opof ). if the process will not stabilize and starts to oscillate, set the proportional band two times higher and go back to step 4. also put output power offset ( opof ) back to zero. 6. if the process is stable, decrease proportional band setting by two times and change the setpoint value a small amount to excite the process. continue with this step until the process oscillates in a continuous nature. 7. set the proportional band to three times the setting that caused the oscillation in step 6. 8. set the integral time to two times the period of the oscillation. 9. set the derivative time to 1/8 (0.125) of the integral time. digital potentiometer a pxu with an analog type control output 1 can be used as a digital potentiometer. to use the pxu as a digital pot, configure the pxu for manual control mode. also configure op1 parameter to be displayed and adjusted on display line 2. op1 output terminals provide the analog output (digital pot) signal. the op1 parameter displayed on line 2 is viewed in units of % output (0.0 to 100.0) only. if desired, the pxu line 1 display can be wired and configured to display the output signal level in engineering units. to do this, wire the op1 output signal (in series for current signals and parallel for voltage signals) to the pxus input and scale the input display for the desired engineering units. for more detailed information regarding using a pxu as a digital potentiometer, see the digital pot tech note at www.redlion.net. time sp input overshoot and oscilla tions to dampen response: - use setpoint ramping. - use output power limits . - increase propor tional band. - increase integral time. - increase derivative time. - check cycle time. sp time input slow response to quicken response: - increase or defeat setpoint ramping. - extend output power limits . - decrease propor tional band. - decrease integral time. - decrease deriva tive time.
25 25 parameter value chart programmer:______________________date:_________ controller number:_______ security code:_______ input module ( ??i? ) display parameter factory setting user setting type input type t?-j scal temperature scale f dcpt decimal resolution 0 fltr digital filtering ? band input filter band 1 shft shift/offset 0 dsp1 display value scaling point 1 0 dsp2 display value scaling point 2 1000 splo setpoint low limit -14? sphi setpoint high limit 21?2 cjc cold juction compensation on usr1 user1 function none usr2 user2 function none f1in f1 key function none f2in f2 key function none output module ( ???? ) display parameter factory setting user setting opac control action r1r2 ctrl auto control mode pid cyc1 op1 cycle time 2.0 op1l op 1 power low limit 0.0 op1h op 1 power high limit 100.0 if01 input fail op1 power level 0.0 an1l analog low 0.0 an1h analog high 100.0 cyc2 op2 cycle time 2.0 op2l op 2 power low limit 0.0 op2h op 2 power high limit 100.0 if02 input fail op2 power level 0.0 gan2 relative gain 1.00 db-2 deadband/overlap 2 chys on/off control hysteresis 2 lockout module ( 3??c ) display parameter factory setting user setting sp setpoint disp op1 output 1 power para op2 output 2 power para sprp setpoint ramp rate para pid pid group para r-s controller status disp opof output power offset para prop proportional band para intt integral time para dert derivative time para dint integration default loc al-1 alarm 1 value para al-2 alarm 2 value para al-3 alarm 3 value para alrs alarm reset para spsl setpoint select para tune auto-tune code hide ctrl auto control mode hide trnf control mode transfer hide dev deviation value disp code access code 0 alarm module ( 4??? ) display parameter factory setting user setting act1 alarm 1 action none lit1 alarm 1 annunciator nor rst1 alarm 1 reset mode auto stb1 alarm 1 standby no al-1 alarm 1 value 100 ifa1 alarm 1 input fail action off act2 alarm 2 action none lit2 alarm 2 annunciator nor rst2 alarm 2 reset mode auto stb2 alarm 2 standby no al-2 alarm 2 value 200 ifa2 alarm 2 input fail action off act3 alarm 3 action none lit3 alarm 3 annunciator nor rst3 alarm 3 reset auto stb3 alarm 3 standby no al-3 alarm 3 value 300 ifa3 alarm 3 input fail action off ahys alarm hysteresis 1 colr change display color off serial communications module ( 7??c ) display parameter factory setting user setting type communications type rtv baud baud rate 3?k4 data data bit ? parb parity bit no addr unit address 247
26 26 pxu p ro gramming q uick o verview 1-in decima l resolutio n dcpt input ty pe type digita l filtering fltr display v alue 2 dsp2 band filter band shft shift/ of fset display v alue 1 dsp1 setpoint high limit sphi setpoint low limit splo pro 3-lc 4-al 7-sc cnfp 2-op te mp scale scal f1 key function fiin usr1 user input 1 usr2 user input 2 cold junction cjc f2 key function f2in op1 cycle ti me cyc1 control action opac output 1 power low limi t op1l output 1 analog high scaling an1h op1h output 1 power high limi t 1fo1 input fail op1 power level output 1 analog low scaling an1l output 2 gain gan2 op2 cycle ti me cyc2 auto control mode ctrl output 2 powe r high limit op2h db-2 output 2 deadband output 2 powe r low limit op2l on/of f control hysteresis chys input fail op2 power level if02 output 2 power op2 setpoint sp setpoint ramp rate sprp proportional band prop pid pid va lue r-s controlle r status output power of fset opof derivativ e ti me dert integral ti me intt output 1 power op1 integration default dint control mode tr ansfer trnf tune auto-t une code auto control mode ctrl access code code deviation v alue dev alarm 3 v alue al-3 al-1 alarm 1 va lue alarm 2 v alue al-2 setpoint selec t spsl alarm reset alrs alarm 1 reset mode rst1 alarm 1 action act1 alarm 1 standby stb1 alarm 2 annunciator lit2 al-1 alarm 1 va lue ifa1 input fail alarm 1 action alarm 2 action act2 alarm 2 standby stb2 alarm 2 reset mode rst2 alarm 1 annunciato r lit1 data bit data communications ty pe type parity bit parb addr unit address baud rate baud alarm 2 v alue al-2 input fail alarm 3 action ifa3 stb3 alarm 3 standby alarm 3 v alue al-3 change display color colr alarm hysteresis ahys alarm 3 action act3 input fail alarm 2 action ifa2 alarm 3 reset mode rst3 alarm 3 annunciator lit3
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limited warranty (a) red lion controls inc., sixnet inc., n-tron corporation, or blue tree wireless data, inc. (the company) warrants that all products shall be free from defects in material and workmanship under normal use for the period of time provided in statement of warranty periods (available at www.redlion.net) current at the time of shipment of the products (the warranty period). except for the above-stated warranty, company makes no warranty whatsoever with respect to the products, including any (a) warranty of merchantability; (b) warranty of fitness for a particular purpose; or (c) warranty against infringement of intellectual property rights of a third party; whether express or implied by law, course of dealing, course of performance, usage of trade or otherwise. customer shall be responsible for determining that a product is suitable for customers use and that such use complies with any applicable local, state or federal law. (b) the company shall not be liable for a breach of the warranty set forth in paragraph (a) if (i) the defect is a result of customers failure to store, install, commission or maintain the product according to specifications; (ii) customer alters or repairs such product without the prior written consent of company. (c) subject to paragraph (b), with respect to any such product during the warranty period, company shall, in its sole discretion, either (i) repair or replace the product; or (ii) credit or refund the price of product provided that, if company so requests, customer shall, at companys expense, return such product to company. (d) the remedies set forth in paragraph (c) shall be the customers sole and exclusive remedy and companys entire liability for any breach of the limited warranty set forth in paragraph (a). red lion controls headquarters 20 willow springs circle york pa 17406 tel +1 (717) 767-6511 fax +1 (717) 764-0839 red lion controls china unit 1102, xinmao plaza building 9, no.99 tianzhou road shanghai, p.r. china 200223 tel +86 21 6113 3688 fax +86 21 6113 3683 red lion controls europe softwareweg 9 nl - 3821 bn amersfoort tel +31 (0) 334 723 225 fax +31 (0) 334 893 793 red lion controls india 201-b, 2nd floor, park centra opp 32 mile stone, sector-30 gurgaon-122002 haryana, india tel +91 984 487 0503
29 pxu modbus register table 09/04/2015 the following is an example of the necessary query and corresponding response for holding register 2. in this example register 2 is the decimal value 123. query: 01 03 00 01 00 01 d5 ca response: 01 03 02 00 7b f8 67 notes: 1. the pxu registers can be read as holding (4x) or input (3x) registers. 2. the pxu should not be powered down while parameters are being changed. doing so may result in an in-complete write to the non-volatile memory and produce checksum errors. register (4x) register name low limit high limit factory setting access comments frequently used registers 1 process value (pv) n/a n/a n/a read only 1 = 1 display unit 2 active setpoint (sp) -999 9999 0 read/write 1 = 1 display unit 3 setpoint 1 (sp1) -999 9999 0 read/write 1 = 1 display unit 4 setpoint 2 (sp2) -999 9999 0 read/write 1 = 1 display unit 5 setpoint deviation n/a n/a n/a read only 1 = 1 display unit 6 alarm 1 value -999 9999 100 read/write 1 = 1 display unit 7 alarm 2 value -999 9999 200 read/write 1 = 1 display unit 8 alarm 3 value -999 9999 300 read/write 1 = 1 display unit 9 output power 1 0 1000 0 read/write 1 = 0.1%; writable when in manual mode only. 10 output power 2 0 1000 0 read/write 1 = 0.1%; writable when in manual mode only. 11 pb proportional band (active) 1 999(.9) or 9999 (process) 70 read/write 1 = 1 display unit 12 integral time (active) 0 9999 120 read/write 1 = 1 second 13 derivative time (active) 0 9999 30 read/write 1 = 1 second 14 integration default (active) 0 1000 0 read/write 1 = 0.1 % output power 15 pid parameter set selection 0 1 0 read/write 0 = pid set 1, 1 = pid set 2 16 auto-tune start 0 1 0 read/write 0 = no; 1 = yes 17 control mode transfer (auto/manual) 0 1 0 read/write 0 = automatic (pid), 1 = user (manual mode) 18 controller status 0 1 1 read/write 0: stop, 1: run 19 setpoint select 0 1 0 read/write 0 = sp1, 1 = sp2 20 sp ramp rate 0 999(.9) or 9999 (process) 0 read/write 1 = 1 display unit/minute; 0 = ramping disabled 21 led status n/a n/a n/a read only bit state: 0 = off, 1 = on b7: at, b6:out1, b5: out2, b4: alm1, b3: c, b2: f, b1: alm2, b0: alm3 22 pushbutton status n/a n/a n/a read only bit state: 0 = key pressed, 1 = key not pressed b7: d, b6: up, b5: f1, b4: n/a, b3: p, b2: down, b1: f2, b0: n/a 23 alarm reset 0 7 0 read/write bit state: 1 = reset alarm, bit is returned to zero following reset b3: reset alm3, b1: reset alm2, b0: reset alm1 24 setpoint ramping disable 0 1 0 read/write 0 = enabled, 1 = disabled 25 integral action disable 0 1 0 read/write 0 = enabled, 1 = disabled pid parameters 33 proportional band 1 1 999(.9) or 9999 (process) 70 read/write 1 = 1 display unit 34 integral time 1 0 9999 120 read/write 1 = 1 second 35 derivative time 1 0 9999 30 read/write 1 = 1 second 36 integration default 1 0 1000 0 read/write 1 = 0.1 % 37 proportional band 2 1 999(.9) or 9999 (process) 70 read/write 1 = 1 display unit 38 integral time 2 0 9999 120 read/write 1 = 1 second 39 derivative time 2 0 9999 30 read/write 1 = 1 second 40 integration default 2 0 1000 0 read/write 1 = 0.1 % 41 output power offset 0 1000 500 read/write 1 = 0.1 % output power
30 register (4x) register name low limit high limit factory setting access comments input parameters 51 input type 0 19 1 read/write 0 = tc-k 1 = tc-j 2 = tc-t 3 = tc-e 4 = tc-n 5 = tc-r 6 = tc-s 7 = tc-b 8 = tc-l 9 = tc-u 10 = tc-txk 11 = r392 12 = r385 13 = n1 14 = cu50 15 = 5v 16 = 10v 17 = 0-20ma 18 = 4-20ma 19 = 0.05v 52 temperature scale 0 1 0 read/write 0 = f, 1 = c 53 decimal resolution 0 3 0 read/write 0 = 0 (no decimal place) 1 = 0.0, 2 = 0.00, 3 = 0.000. temperature inputs are limited to 1 decimal point except for the thermocouple b,s,r types, which display in whole units only (0) 54 digital filtering 0 50 8 read/write 0 = least, 50 = most 55 input filter band 0 25(.0) or 250 (process) 1 read/write 1 = 1 display unit 56 shift/offset -99(.9) or 999 (process) 99(.9) or 999 (process) 0 read/write 1 = 1 display unit 57 display value scaling point 1 -999 9999 0 read/write 1 = 1 display unit; value associated with lower range of input signal (0v, 0ma or 4ma) 58 display value scaling point 2 -999 9999 1000 read/write 1 = 1 display unit; value associated with upper limit of input signal (50mv, 5v, 10v, or 20ma) 59 setpoint low limit depending on sensor type upper-limit of temperature range -148 read/write 1 = 1 display unit 60 setpoint high limit lower-limit of temperature range depends on sensor type 2192 read/write 1 = 1 display unit 61 cold junction compensation 0 1 0 read/write 0 = on, 1 = off 62 user input 1 function 0 9 or 10 0 read/write 0 = none, 1 = run/stop, 2 = setpoint 1/2 select, 3 = auto/manual control, 4 = ploc, 5 = integral lock, 6 = sp ramp disable, 7 = reset alarms, 8 = rst alm1, 9 = rst alm2, 10 = rst alm3 63 user input 2 function 0 9 or 10 0 read/write 0 = none, 1 = run/stop, 2 = setpoint 1/2 select, 3 = auto/manual control, 4 = ploc, 5 = integral lock, 6 = sp ramp disable, 7 = reset alarms, 8 = rst alm1, 9 = rst alm2, 10 = rst alm3 64 f1 key function 0 6 or 7 0 read/write 0 = none, 1 = run/stop, 2 = setpoint 1/2 select, 3 = auto/manual control, 4 = reset alarms, 5 = rst alm1 , 6 = rst alm2 , 7 = rst alm3 65 f2 key function 0 6 or 7 0 read/write 0 = none, 1 = run/stop, 2 = setpoint 1/2 select, 3 = auto/manual control, 4 = reset alarms, 5 = rst alm1 , 6 = rst alm2 , 7 = rst alm3 output parameters 81 output action 0 1 or 5 0 read/write single output model: 0 = r1, 1 = d1; dual output model: 0 = r1r2, 1 = d1r2, 2 = r1d2, 3 = d1d2, 4 = r1a2, 5 = d1a2 r = reverse acting, d = direct acting, a = alarm 3, numeric value indicates op1 or op2, 82 auto control mode 0 1 0 read/write 0 = pid, 1 = on-off 83 output 1 cycle time 0 250 20 read/write 1 = 0.1 sec; a setting of zero will keep output off. 84 output 1 power lower limit 0 output 1 power high limit 0 read/write 1 = 0.1 % 85 output 1 power high limit output 1 power lower limit 1000 1000 read/write 1 = 0.1 % 86 input fail op1 power level 0 1000 0 read/write 1 = 0.1 % 87 analog out 1 low scaling value -999 9999 0 read/write 1 = 0.1 % 88 analog out 1 high scaling value -999 9999 1000 read/write 1 = 0.1 % 89 reserved 0 90 reserved 0 91 output 2 cycle time 0 250 20 read/write 1 = 0.1 sec; a setting of zero will keep output off. 92 output 2 power lower limit 0 output 2 power high limit 0 read/write 1 = 0.1 % 93 output 2 power high limit output 2 power lower limit 1000 1000 read/write 1 = 0.1 % 94 input fail op2 power level 0 1000 0 read/write 1 = 0.1 % 95 relative gain 1 9999 100 read/write 1 = 0.01; in combination reverse(r) and direct(d) modes, this defines the gain of op2 relative to op1.
31 register (4x) register name low limit high limit factory setting access comments 96 deadband/overlap -99(.9) or -999 (process) 999(.9) or 9999 (process) 2 read/write 1 = 1 display unit; in combination reverse(r) and direct(d) modes, this defines the overlap area in which both op1 and op2 are active (negative value) or the deadband area (positive value). 97 on/off control hysteresis 2 250(.0) or 2500 (process) 2 read/write 1 = 1 display unit lockout parameters 101 setpoint access 0 4 0 read/write 0 = disp, 1 = para, 2 = hide, 3 = loc, 4 = dspr 102 output 1 power access 0 4 1 read/write 0 = disp, 1 = para, 2 = hide, 3 = loc, 4 = dspr 103 output 2 power access 0 4 1 read/write 0 = disp, 1 = para, 2 = hide, 3 = loc, 4 = dspr 104 setpoint ramp rate access 0 4 1 read/write 0 = disp, 1 = para, 2 = hide, 3 = loc, 4 = dspr 105 pid group access 0 4 1 read/write 0 = disp, 1 = para, 2 = hide, 3 = loc, 4 = dspr 106 controller status (run/stop) access 0 4 0 read/write 0 = disp, 1 = para, 2 = hide, 3 = loc, 4 = dspr 107 output power offset access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 108 proportional band access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 109 integral time access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 110 derivative time access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 111 integration default access 1 3 3 read/write 1 = para, 2 = hide, 3 = loc 112 alarm 1 value access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 113 alarm 2 value access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 114 alarm 3 value access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 115 alarm reset access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 116 setpoint select access 1 3 1 read/write 1 = para, 2 = hide, 3 = loc 117 auto-tune start access 2 3 2 read/write 2 = hide, 3 = loc 118 auto control mode access 2 3 2 read/write 2 = hide, 3 = loc 119 control mode transfer access 2 3 2 read/write 2 = hide, 3 = loc 120 deviation value access 0 3 0 read/write 0 = disp, 3 = loc 121 access code -125 125 0 read/write 0 = full access to display, parameter, hidden, and configuration loops; -1 to -125 = code necessary to access configuration loop only; 1 to 125 = code necessary to access hidden and configuration loops alarm parameters 131 alarm 1 action 0 18 0 read/write 0 = no, 1 = abhi, 2 = ablo, 3 = auhi, 4 = aulo, 5 = d-hi, 6 = d-lo, 7 = b-in, 8 = b-ot, 9 = inpt, 10 = ct1, 11 = ct2, 12 = soak, 13 = r-up, 14 = r-dn, 15 = run, 16 = hold, 17 = stop, 18 = end 132 alarm 1 annunciator 0 1 0 read/write 0 = normal, 1 = reverse 133 alarm 1 reset mode 0 1 0 read/write 0 = automatic, 1 = latched 134 alarm 1 standby 0 1 0 read/write 0 = no, 1 = yes 135 alarm 1 value -999 9999 100 read/write 1 = 1 display unit 136 input fail alarm 1 action 0 1 0 read/write 0 = off; 1 = on 137 alarm 2 action 0 18 0 read/write 0 = no, 1 = abhi, 2 = ablo, 3 = auhi, 4 = aulo, 5 = d-hi, 6 = d-lo, 7 = b-in, 8 = b-ot, 9 = inpt, 10 = ct1, 11 = ct2, 12 = soak, 13 = r-up, 14 = r-dn, 15 = run, 16 = hold, 17 = stop, 18 = end 138 alarm 2 annunciator 0 1 0 read/write 0 = normal, 1 = reverse 139 alarm 2 reset mode 0 1 0 read/write 0 = automatic, 1 = latched 140 alarm 2 standby 0 1 0 read/write 0 = no, 1 = yes 141 alarm 2 value -999 9999 200 read/write 1 = 1 display unit 142 input fail alarm 2 action 0 1 0 read/write 0 = off; 1 = on 143 alarm 3 action 0 18 0 read/write 0 = no, 1 = abhi, 2 = ablo, 3 = auhi, 4 = aulo, 5 = d-hi, 6 = d-lo, 7 = b-in, 8 = b-ot, 9 = inpt, 10 = ct1, 11 = ct2, 12 = soak, 13 = r-up, 14 = r-dn, 15 = run, 16 = hold, 17 = stop, 18 = end 144 alarm 3 annunciator 0 1 0 read/write 0 = normal, 1 = reverse 145 alarm 3 reset mode 0 1 0 read/write 0 = automatic, 1 = latched 146 alarm 3 standby 0 1 0 read/write 0 = no, 1 = yes 147 alarm 3 value -999 9999 300 read/write 1 = 1 display unit
32 register (4x) register name low limit high limit factory setting access comments 148 input fail alarm 3 action 0 1 0 read/write 0 = off; 1 = on 149 alarm hysteresis 0 250(.0) or 2500 (process) 0 read/write 1 = 1 display unit; the same value applies to all alarms. 150 change color intensity 0 4 0 read/write 0 = off, 1 = any alarm, 2 = al-1, 3 = al-2, 4 = al-3 serial communication parameters 211 communications type 0 1 1 read/write 0 = ascii, 1 = rtu 212 baud rate 0 4 4 read/write 0 = 2400, 1 = 4800, 2 = 9600, 3 = 19200, 4 = 38400 213 data bit 7 8 1 read/write 0 = 7,1 = 8 214 parity bit 0 2 0 read/write 0 = no, 1 = even, 2 = odd 215 unit address 1 247 247 read/write 216 load serial settings 0 1 0 write * 0 = no change, 1 = load serial settings; * - will read 0 slave id 1001 n/a n/a 0x524c (rl) read only 0x524c (rl) 1002 n/a n/a 0x432d (c-) read only 0x432d (c-) 1003 n/a n/a 0x5058 (px) read only 0x5058 (px) 1004 n/a n/a model dependent read only 0x55 (un) n - 1st output; 0(0x30) = no card installed, x (0x78) = any output option card installed 1005 n/a n/a model dependent read only 0x (2nd output): 0 (0x30) = no card installed, x (0x78) = any output option card installed (options): 9 = rs485/no user inputs, a = rs485/2 user inputs 1006 n/a n/a 0x2020 ( ) read only 0x2020 ( ) 1007 n/a n/a read only 0x0100 = software database version number in bcd (0x0100 = 1.00) 1008 n/a n/a 0x10 read only 0x10 = 16 reads 1009 n/a n/a 0x10 read only 0x10 = 16 writes 1010 n/a n/a 0 read only

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