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cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y p ower s upply ? ac 100-240v wide-range input ? width only 48mm ? efficiency up to 95.6% ? excellent partial load efficiency ? 20% output power reserves ? easy fuse breaking C 3 times nominal current for 12ms ? safe hiccup plus overload mode ? active power factor correction (pfc) ? minimal inrush current surge ? full power between -25c and +60c ? dc-ok relay contact ? current sharing feature for parallel use ? 3 year warranty 1/27 g eneral d escription the dimension cp-series ar e cost optimized power supplies without compromisi ng quality, reliability and performance. the most outstanding features of the cp20 series are the high e fficiency, electronic inrush current limitation, active pfc, wide operational temperature range and the extraordinary small size. the cp20.241-c1 is equipped with conformal coated pc- boards preferred for applications in harsh areas. the cp20.241-s1 is equipped with quick-connect spring- clamp terminals preferred fo r applications which are exposed to mechanical vibration. the cp20.241-s2 is equippe d with push-in terminals optimized for automated cabinet wiring. the devices have a power reserve of 20% included, which may even be used cont inuously at temperatures up to +45c. high immunity to transients a nd power surges as well as low electromagnetic emission, a dc-ok relay contact and a large international appr oval package for a variety of applications makes this un it suitable for nearly every situation. s hort - form d ata output voltage dc 24v nominal adjustment range 24 - 28v factory set 24.1v output current 24.0 - 20.6a below +45c ambient 20.0 C 17.1a at +60c ambient 15.0 C 13.0a at +70c ambient derate linearely between +45c and +70c input voltage ac ac 100-240v -15%/+10% mains frequency 50-60hz 6% input current ac 4.26 / 2.23a at 120 / 230vac power factor 0.99 / 0.95 at 120 / 230vac input voltage dc dc 110-150v 20% input current dc 4.64a at 110vdc ac inrush current 10.0 / 4.5a at 120 / 230vac efficiency 94.2 / 95.6% at 120 / 230vac losses 29.6 / 22.1w at 120 / 230vac hold-up time 32ms temperature range -25c to +70c size (wxhxd) 48x124x127mm without din-rail weight 830g / 1.83lb o rder n umbers power supply cp20.241 cp20.241-c1 with conformal coated pc-boards cp20.241-s1 with quick-connect spring-clamp terminals cp20.241-s2 with push-in terminals accessory zm5.wall wall/ panel mount bracket uf20.241 buffer module yr40.242 redundancy module yr40.245 redundancy module m arkings ind. cont. e q. ul 508, planned ul 60950-1, planned marine, planned class i div 2, planned iecex atex ii 3g ex ec nc ii t3 gc planned emc, lvd (atex, planned)
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y i ndex page page 1. intended use .......................................................3 2. installation requirements ...................................3 3. ac-input ...............................................................4 4. dc-input ...............................................................5 5. input inrush current ...........................................5 6. output .................................................................6 7. hold-up time .......................................................8 8. dc-ok relay contact ..........................................8 9. efficiency and power losses ................................9 10. lifetime expectancy ..........................................10 11. mtbf ..................................................................10 12. functional diagram ...........................................11 13. terminals and wiring ........................................11 14. front side and user elements ...........................13 15. emc ....................................................................14 16. environment ......................................................15 17. protection features ...........................................16 18. safety features ..................................................16 19. dielectric strength ............................................17 20. approvals ...........................................................18 21. rohs, reach and othe r fulfilled standards ...18 22. physical dimensions and weight ..................... 19 23. accessories ........................................................ 20 23.1. uf20.241 buffer module ..........................20 23.2. yr40.242 - redundancy modules ............20 23.3. yr40.245 - redundancy modules ............20 23.4. zm5.wall C wall/panel mount bracket .21 24. application notes ............................................. 22 24.1. peak current capability ...........................22 24.2. back-feeding loads ..................................23 24.3. external input protection .........................23 24.4. output circuit breakers ............................23 24.5. series operation .......................................24 24.6. parallel use to increase output power ....24 24.7. parallel use for redundancy ....................25 24.8. inductive and capacitive loads ................26 24.9. charging of batteries ...............................26 24.10. operation on two phases ........................26 24.11. use in a tightly sealed enclosure ............26 24.12. mounting orientations ............................27 the information given in this document is correct to the best of our kn owledge and experience at the time of publication. if not expressly agreed othe rwise, this information does not represent a warranty in the legal sense of the word. as the state of our knowledge an d experience is constantly changing, the information in this data sheet is subject to revision. we therefore ki ndly ask you to always use the latest issue of this document (available under www.pulspower.com). no part of this document may be reproduced or utilized in any form without our prior permission in writing. t erminology and a breviations pe and symbol pe is the abbreviation for p rotective e arth and has the same meaning as the symbol . earth, ground this document uses the term earth which is the same as the u.s. term ground. t.b.d. to be defined, value or de scription will follow later. ac 230v a figure displayed with the ac or dc before the value represents a nominal voltage with standard tolerances (usually 15%) included. e.g.: dc 12v describes a 12v battery disregardi ng whether it is full (13.7v) or flat (10v) 230vac a figure with the unit (vac) at the end is a momentary figure without any additional tolerances included. 50hz vs. 60hz as long as not otherwise stated, ac 230v parameters are valid at 50hz mains frequency. may a key word indicating flexibility of choice with no im plied preference. shall a key word indicating a mandatory requirement. should a key word indicating flexibility of choi ce with a strongly pref erred implementation. 2/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 1. i ntended u se this device is designed for installation in an enclosure a nd is intended for the general professional use such as in industrial control, office, communicati on, and instrumentation equipment. do not use this power supply in equipment, where malfuncti on may cause severe personal injury or threaten human life. 2. i nstallation r equirements this device may only be installed and put into opera tion by qualified personnel. this device does not contain serviceable parts. the tripping of an internal fuse is caused by an internal defect. if damage or malfuncti on should occur during installation or operation, i mmediately turn power off and send unit to the factory for inspection. mount the unit on a din-rail so that the input terminals are located on the bottom of the unit. for other mounting orientations see de-rating requirements in this document. see chapter 24.12. this device is designed for convection cooling and does not require an external fan. do not obstruct airflow and do not cover ventilation grid (e.g. cable conduits) by more than 15%! keep the following installation clearance s: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are recommended when the device is loaded permanently with more than 50% of th e rated power. increase this clearance to 15mm in case the adjacent device is a heat source (e.g. another power supply). a disconnecting means shall be provided for the output of the power supplies when used in applications according to csa c22.2 no 107.1-01. warning risk of electrical shock, fi re, personal injury or death. - do not use the power supply without proper grounding (protective earth). us e the terminal on the input block for earth connection and not one of the screws on the housing. - turn power off before working on the devi ce. protect against inad vertent re-powering. - make sure that the wiring is correct by following all local and national codes. - do not modify or repair the unit. - do not open the unit as high voltages are present inside. - use caution to prevent any foreign objects from enteri ng the housing. - do not use in wet locations or in areas wh ere moisture or condens ation can be expected. - do not touch during power-on, and immediatel y after power-off. hot surfaces may cause burns. 3/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 3. ac-i nput ac input nom. ac 100-240v suitable fo r tn-, tt- and it mains networks ac input range min. 85-264vac continuous operation min. 264-300vac < 500ms allowed voltage l or n to ea rth max. 300vac continuous, iec 62103 input frequency nom. 50C60hz 6% turn-on voltage typ. 82vac steady-state value, see fig. 3-1 shut-down voltage typ. 72vac steady-state value, see fig. 3-1 external input protection see recommendations in chapter 24.3 . ac 100v ac 120v ac 230v input current typ. 5.15a 4. 26a 2.23a at 24v, 20a, see fig. 3-3 power factor *) typ. 0.996 0.996 0.980 at 24v, 20a, see fig. 3-4 crest factor **) typ. 1.65 1.63 1.63 at 24v, 20a start-up delay typ. 450ms 420ms 440ms see fig. 3-2 rise time typ. 45ms 45ms 45ms at 24v, 20a const. current load, 0mf load capacitance, see fig. 3-2 typ. 90ms 90ms 90ms at 24v, 20a const. current load, 20mf load capacitance,, see fig. 3-2 turn-on overshoot max. 200mv 200mv 200mv see fig. 3-2 *) the power factor is the ratio of the true (or real) power to the apparent power in an ac circuit. **) the crest factor is the mathematical ratio of the peak value to rms value of the input current waveform. fig. 3-1 input voltage range fig. 3-2 turn-on behavior, definitions turn-on 85v rated input range max. 500ms v in p out 300vac 264v shut-down start-up delay rise time overshoot - 5% output voltage input voltage fig. 3-3 input current vs. output current at 24v output voltage fig. 3-4 power factor vs. output current at 24v output voltage 24a 24681012141618 0 1 2 3 4 5 6a input current, typ. 20 22 a) 100vac b) 120vac c) 230vac b a c output current power factor, typ. 2 4 6 8 1012141618 24a 0.75 0.8 0.85 0.9 0.95 1.0 20 22 a) 100vac b) 120vac c) 230vac a, b c output current 4/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 4. dc-i nput dc input nom. dc 110-150v 20% dc input range min. 88-187vdc continuous operation dc input current typ. 4.64a at 110vdc, at 24v, 20a allowed voltage l/n to earth max. 375vdc continuous, iec 62477-1 turn-on voltage typ. 80vdc steady state value shut-down voltage typ. 70vdc steady state value fig. 4-1 wiring for dc input instructions for dc use: + - load l pe + - power supply ac dc battery n a) use a battery or a similar dc source. a supply from the intermediate dc-bus of a frequency converter is not recommended and can cause a malfunction or damage the unit. b) connect +pole to l and Cpole to n. c) connect the pe terminal to an earth wire or to the machine ground. 5. i nput i nrush c urrent an active inrush limitation circui t limits the input inrush current af ter turn-on of the input voltage. the charging current into emi suppression capacitors is disregarded in th e first microseconds after switch-on. ac 100v ac 120v ac 230v inrush current max. 15a peak 12a peak 5.5a peak temperature independent typ. 12a peak 10a peak 4.5a peak temperature independent inrush energy max. negligible small temperature independent inrush delay typ. 500ms 450ms 450ms start-up delay plus rise time fig. 5-1 typical input inrush current behaviour at nominal load and 25c ambient output 100ms/div input 230vac 24vdc input current 5a / div 5/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 6/27 p r e l i m i n a r y 6. o utput output voltage nom. 24v adjustment range min. 24-28v guaranteed max. 30v 4) at clockwise end position of potentiometer factory settings typ. 24.1v 0.2%, at fu ll load, cold unit, in single use mode typ. 24.1v 0.2%, at full load, cold unit, in parallel use mode typ. 25.1v at no load, cold unit, in parallel use mode line regulation max. 10mv at 85- 300vac input voltage change load regulation max. 100mv in s ingle use mode: static value, 0a ? 20a, see fig. 6-1 typ. 1000mv in parallel use mode: static value, 0a ? 20a, see fig. 6-2 ripple and noise voltage max. 50mvpp 20hz to 20mhz, 50ohm output current nom. 20a at 24v, ambient temperature <60c, see fig. 6-1 nom. 24a 1) at 24v, ambient temperature <45c, see fig. 6-1 nom. 17.1a at 28v, ambient temperature <60c, see fig. 6-1 nom. 20.6a 1) at 28v, ambient temperature <45c, see fig. 6-1 typ. 60a up to 12ms, output voltage stays above 20v, see fig. 6-4 , this peak current is available once every five seconds. see chapter 24.1 for more peak current measurements. output power nom. 480w continuously available nom. 576w 1) power boost 1) overload behaviour cont. curre nt output voltage > 13vdc, see fig. 6-1 hiccup plus mode 2) output voltage < 13vdc, see fig. 6-1 short-circuit cu rrent min. 26a 3) load impedance <10mohm, see fig. 6-3 max. 31a 3) load impedance <10mohm, see fig. 6-3 max. 9.8a 3) average (r.m.s.) current, load impedance 50mohm, see fig. 6-3 min. 55a up to 12ms, lo ad impedance <10mohm, see fig. 6-4 typ. 70a up to 12ms, load impedance <10mohm, see fig. 6-4 output capacitance typ. 8 500f included inside the power supply 1) power boost this power/ current is continuously allowed up to an ambient temperature of 45c. above 45c, do not use this power/ current longer than a duty cy cle of 10% and/ or not longer than 1 minute every 10 minutes. 2) hiccup plus mode at heavy overloads (when output voltage falls below 13v), the power supply delivers continuous output current for 2s. after thi s, the output is switched off for approx. 18s before a new start attempt is automatically performed. this cycle is repeated as long as the overload exists. if the overload has been cleare d, the device will operate normally. see fig. 6-3 . 3) discharge current of output capacitors is not included. 4) this is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. it is not guaranteed value which can be achieved. the typical value is about 28.5v (in single use mode).
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y fig. 6-1 output voltage vs. output current, typ. fig. 6-2 output voltage in parallel use mode, typ. output voltage (single use, typ.) 0 02 5 4 8 12 28v 16 20 24 40a 15 5 10 20 30 35 adjustment range output current continuous current factory setting hiccup plus mode output voltage (parallel use, typ.) 22v 0816 23v 24v 25v 29v 26v 27v 28v 24a 20 12 4 adjustment range factory setting output current fig. 6-3 short-circuit on output, hiccup plus ? mode, typ. fig. 6-4 dynamic overcurrent capability, typ. output current 0 29a 18s 18s 18s 2s 2s 2s t short -circuit normal operation normal operation output voltage (dynamic behavior, < 12ms) 0 0 4 8 12 28v 16 20 24 70a 30 10 40 50 20 60 adjustment range output current 7/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 7. h old - up t ime ac 100v ac 120v ac 230v hold-up time typ. 65ms 65 ms 65ms at 24v, 10a, see fig. 7-1 min. 54ms 54ms 54ms at 24v, 10a, see fig. 7-1 typ. 32ms 32ms 32ms at 24v, 20a, see fig. 7-1 min. 24ms 24ms 24ms at 24v, 20a, see fig. 7-1 fig. 7-1 hold-up time vs. input voltage fig. 7-2 shut-down behavior, definitions 0 10 20 30 40 80ms 90 120 155 190 230vac input voltage 50 60 hold-up time 24v, 20a, typ. 24v, 10a, min. 24v, 10a, typ. 70 24v, 20a, min. - 5% hold-up time zero transition output voltage input voltage 8. dc-ok r elay c ontact the dc-ok relay contact reports an output voltage above 90% of the adjusted output voltage of a running device. contact closes as soon as the output voltage reaches typ. 90% of the adjusted output voltage level. contact opens as soon as the output voltage dips more than 10% belo w the adjusted output voltage. short dips will be extended to a signal length of 100ms. dips shorter th an 1ms will be ignored. contact ratings maximal 60vdc 0.3a, 30v dc 1a, 30vac 0.5a, resistive load minimal permissible load: 1ma at 5vdc isolation voltage see dielec tric strength table in section 18. fig. 8-1 dc-ok relay contact behavior 100ms 0.9* v adj < 1ms 10% open v out = v adj open closed closed > 1ms 8/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 9. e fficiency and p ower l osses ac 100v ac 120v ac 230v efficiency typ. 93.6% 94.2% 95.6% at 24v, 20a typ. 93.5% 94.1% 95.5% at 24v, 24a (power boost) average efficiency *) typ. 93.2% 93.8% 95.0% 25% at 5a, 25% at 10a, 25% at 15a. 25% at 20a power losses typ. 2.5w 2.2w 2.2w at 24v, 0a typ. 16.0w 15.0w 12.5w at 24v, 10a typ. 32.8w 29.6w 22.1w at 24v, 20a typ. 40.0w 36.1w 27.1w at 24v, 24a (power boost) *) the average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25% of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100% of the nominal load for the rest of the time. fig. 9-1 efficiency vs. output current at 24v, typ fig. 9-2 losses vs. output current at 24v, typ. efficiency 4 6 8 101214 1820 24a 87 88 90 91 92 93 94 95 96% output current 16 22 ( a ) ( b ) ( c ) (a) 100vac (b) 120vac (c) 230vac power losses 0 2 6 8 12 14 24a 5 0 10 20 30 40w 18 20 4 10 16 output current 22 ( a ) ( b ) ( c ) (a) 100vac (b) 120vac (c) 230vac 35 25 15 fig. 9-3 efficiency vs. input voltage at 24v, 20a, typ. fig. 9-4 losses vs. input voltage at 24v, 20a, typ. efficiency 120 180 230 264vac 90 91 92 93 input voltage 94 95 96% 100 power losses 120 180 230 264vac 10 15 20 25 input voltage 30 35 40w 100 9/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 10/27 p r e l i m i n a r y 10. l ifetime e xpectancy the lifetime expectancy shown in the table indicates the minimum operating hou rs (service life) a nd is determined by the lifetime expectancy of the built-in el ectrolytic capacitors. lifetime expectan cy is specified in operational hours and is calculated according to the capaci tors manufacturer sp ecification. the manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years (131 400h ). any number exceeding th is value is a calculated theoretical lifetime which can be used to compare devices. ac 100v ac 120v ac 230v lifetime expectancy 123 000h 149 0 00h 173 000h at 24v, 10a and 40c 348 000h 422 000h 488 000h at 24v, 10a and 25c 48 000h 60 000h 94 000h at 24v, 20a and 40c 136 000h 169 000h 265 000h at 24v, 20a and 25c 23 000h 31 000h 54 000h at 24v, 24a and 40c 64 000h 88 000h 152 000h at 24v, 24a and 25c 11. mtbf mtbf stands for mean t ime between f ailure, which is calculated according to statistical device fa ilures, and indicates reliability of a device. it is the statisti cal representation of the li kelihood of a unit to fail and does not necessarily represent the life of a product. the mtbf figure is a statistica l representation of the likeli hood of a device to fail. a mt bf figure of e.g. 1 000 000h means that statistically one unit will fail every 100 hours if 10 000 units are installed in the fi eld. however, it can not be determined if the failed unit has b een running for 50 000h or only for 100h. for these types of units the mttf ( mean t ime t o f ailure) value is the same value as the mtbf value. ac 100v ac 120v ac 230v mtbf sn 29500, iec 61709 422 000h 445 000h 590 000h at 24v, 20a and 40c 790 000h 832 000h 1 060 000h at 24v, 20a and 25c mtbf mil hdbk 217f 186 000h 191 000h 226 000h at 24v, 20a and 40c; ground benign gb40 256 000h 263 000h 313 000h at 24v, 20a and 25c; ground benign gb25 40 000h 42 000h 50 000h at 24v, 20a and 40c; ground fixed gf40 53 000h 55 000h 67 000h at 24v, 20a and 25c; ground fixed gf25
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 12. f unctional d iagram fig. 12-1 functional diagram cp20.241, cp20.241-c1, cp20,241-s1 output over- voltage protection pfc converter output voltage regulator power converter output filter output voltage monitor output power manager temper- ature shut- down input fuse input filter input rectifier active inrush limiter v out l n dc-ok contact dc-ok led link for parallel use dc-ok relay + + - - - fig. 12-2 functional diagram cp20,241-s2 output over- voltage protection pfc converter output voltage regulator power converter output filter output voltage monitor output power manager temper- ature shut- down input fuse input filter input rectifier active inrush limiter v out l n dc-ok contact dc-ok led link for parallel use dc-ok relay + - - 13. t erminals and w iring the terminals are ip20 finger sa fe constructed and suitable fo r field- and factory wiring. cp20.241, cp20.241-c1 input output dc-ok-signal type screw termination screw termination push-in termination solid wire max. 6mm 2 max. 6mm 2 max. 1.5mm 2 stranded wire max. 4mm 2 max. 4mm 2 max. 1.5mm 2 american wire gauge awg 20-10 awg 20-10 awg 24-16 max. wire diameter (including ferrules) 2.8mm 2.8mm 1.6mm recommended tightening tor que max. 1nm, 9lb-in max. 1nm, 9lb-in - wire stripping length 7mm / 0.28inch 7mm / 0.28inch 7mm / 0.28inch screwdriver 3.5mm slotted or cross- head no 2 3.5mm slotted or cross- head no 2 3mm slotted to open the spring 11/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y cp20.241-s1 input output dc-ok-signal type quick-connect spring- clamp termination quick-connect spring- clamp termination push-in termination solid wire max. 6mm 2 max. 6mm 2 max. 1.5mm 2 stranded wire max. 4mm 2 max. 4mm 2 max. 1.5mm 2 american wire gauge awg 20-10 awg 20-10 awg 24-16 max. wire diameter (includi ng ferrules) 2.8mm 2.8mm 1.6mm wire stripping length 10mm / 0.4inch 10mm / 0.4inch 7mm / 0.28inch screwdriver - - 3mm slotted to open the spring cp20.241-s2 input output dc-ok-signal type push-in termination push-i n termination push-in termination solid wire max. 2.5mm 2 max. 10mm 2 max. 1.5mm 2 stranded wire max. 2.5mm 2 max. 6mm 2 max. 1.5mm 2 stranded wire with ferrules max. 1.5mm 2 max. 4mm 2 max. 1.5mm 2 american wire gauge awg 24-12 awg 24-8 awg 24-16 max. wire diameter (includi ng ferrules) 2.3mm 3.3mm 1.6mm wire stripping length 10mm / 0.4inch 15mm / 0.6inch 7mm / 0.28inch screwdriver 3.0mm slotted to open the spring 3.5mm slotted to open the spring 3mm slotted to open the spring instructions for wiring: a) use appropriate copper cables that are designed for minimum operating temperatures of: 60c for ambient up to 45c and 75c for ambient up to 60c and 90c for ambient up to 70c minimum. b) follow national installation c odes and installation regulations! c) ensure that all strands of a strande d wire enter the terminal connection! d) unused terminal compartments should be securely tightened. e) ferrules are allowed. t daisy chaining: daisy chaining (jumping from one power s upply output to the next) is allowed as long as the average output current through one terminal pin does not exceed 25a. if the current is higher, use a separate distribution terminal block as shown in fig. 13-2 . fig. 13-1 daisy chaining of outputs fig. 13-2 using distribution terminals load + - power supply + + - - output power supply + + - - output max 25a! continuous distribution terminals load + - power supply + + - - output power supply + + - - output 12/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 14. f ront s ide and u ser e lements fig. 14-1 front side cp20.241, cp20.241-c1 cp20.241-s1 cp20.241-s2 a input terminals n, l line input pe (protective earth) input b output terminals cp20.241-s2: one + pole and two identical - poles all other units: two identical + poles an d three identical - poles + positive output C ne gative (return) output c output voltage potentiometer open the flap to adju st the output voltage. d dc-ok led (green) on, when the output voltage is >90% of the adjusted output voltage e dc-ok relay contact the dc-ok relay contact is synchroniz ed with the dc-ok led. see chapter 8 for details. f parallel use single use link link the two terminal poles when power supplies are connect ed in parallel. in order to achieve a sharing of the load current between the i ndividual power supplies, the parallel us e regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load. see also chapter 24.6 . 13/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 14/27 p r e l i m i n a r y 15. emc the power supply is suitable for applicat ions in industrial environm ent as well as in reside ntial, commercia l and light industry environment wi thout any restrictions. emc immunity according generic standards: en 61000-6-1 and en 61000-6-2 electrostatic discharge en 61000-4-2 contact discharge air discharge 8kv 15kv criterion a criterion a electromagnetic rf field en 61000-4-3 80mhz-2.7ghz 20v/m criterion a fast transients (burst) en 61000-4-4 input lines output lines dc-ok signal (coupling clamp) 4kv 2kv 2kv criterion a criterion a criterion a surge voltage on input en 61000-4-5 l ? n l ? pe, n ? pe 2kv 4kv criterion a criterion a surge voltage on output en 61000-4-5 + ? - + / - ? pe 1kv 2kv criterion a criterion a surge voltage on dc-ok en 61000-4-5 dc-ok signal ? pe 1kv criterion a conducted disturbance en 61000-4- 6 0.15-80mhz 20v criterion a mains voltage dips en 61000-4-11 0% of 100vac 40% of 100vac 70% of 100vac 0% of 200vac 40% of 200vac 70% of 200vac 0vac, 20ms 40vac, 200ms 70vac, 500ms 0vac, 20ms 80vac, 200ms 140vac, 500ms criterion a criterion c criterion a criterion a criterion a criterion a voltage interruptions en 61000-4-11 0% of 200vac (=0v) 5000ms criterion c voltage sags semi f47 0706 dips on the in put voltage according to semi f47 standard 80% of 120vac (96vac) 70% of 120vac (84vac) 50% of 120vac (60vac) 1000ms 500ms 200ms criterion a criterion a criterion a powerful transients vde 0160 over entire load range 750v, 0.3ms criterion a criterions: a: power supply shows normal operation behavior within the defined limits. c: temporary loss of function is possible. power supply may shut-down and restarts by itself. no damage or hazards for the powe r supply will occur. emc emission according generic standards: en 61000-6-3 and en 61000-6-4 conducted emission input lines en 55011, en 55022, fcc part 15, cispr 11, cispr 22 class b conducted emission output lines **) iec/cispr 16-1-2, iec/cispr 16-2-1 t.b.d radiated emission en 55011, en 55022 class b harmonic input current en 61000-3- 2 class a equipment: fulfilled class c equipment: fulfilled in the load range from 8 to 24a voltage fluctuations, flic ker en 61000-3-3 fulfilled *) this device complies with fcc part 15 rules. operation is subjected to fo llowing two conditions: (1) this device may not cause ha rmful interference, and (2) this device must accept any interferenc e received, including interference that may cause undesired operation. *) tested with constant current loads, non pulsing **) for information only, not mandatory for en 61000-6-3
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y switching frequencies the power supply has two converters with tw o different switching frequencies included. switching frequency 1 70khz to 130khz pfc converte r, input voltage and ou tput power dependent switching frequency 2 80khz to 140khz main converter, output power dependent 16. e nvironment operational temperature 1) -25c to +70c (-13f to 158f) reduce output power according fig. 15-1 storage temperature -40c to +85c (-40 f to 185f) for storage and transportation output de-rating 6.4w/c 12w/c 45c to 60c (113f to 140f) 60c to 70c (140f to 158f) humidity 2) 5 to 95% r.h. iec 60068-2-30 vibration sinusoidal 2-17.8h z: 1.6mm; 17.8-500hz: 2g 3) 2 hours / axis iec 60068-2-6 shock 30g 6ms, 20g 11ms 3) 3 bumps / direction, 18 bumps in total iec 60068-2-27 altitude 0 to 2000m (0 to 6 560ft) without any restrictions 2000 to 6000m (6 560 to 20 000ft) reduce output power or ambient temperature, see fig. 15-2 overvoltage category ii according to iec 62477-1, altitude de-rating 30w/1000m or 5c/1000m > 2000m (6500ft), see fig. 15-2 over-voltage category iii iec 62477- 1, altitudes up to 2000m ii for altitudes from 2000m to 6000m degree of pollution 2 iec 62477-1, not conductive labs compatibility the unit does not re lease any silicone or other labs-criti cal substances and is suitable for use in paint shops. audible noise some small audible noise wi ll be emitted from the power supply corrosive gases isa-71.04-198 5, severity level g3, iec 60068-2-60 test ke method 4 1) operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm belo w the unit. 2) do not energize while condensation is present 3) tested in combination with din-rails according to en 60715 with a height of 15mm and a thickness of 1.3mm and standard orien tation. fig. 16-1 output current vs. ambient temp. fig. 16-2 output current vs. altitude allowed output current at 24v 0 -25 0 20 40 70c 4a 8a 12a 16a 20a 24a 60 b a ambient temperature a...90 to 264vac, continuous b... short term 0 0 2000m 4000m 6000m 4a 8a 12a 16a 20a 24a allowable output current at 24v altitude b c a . . . t a m b < 6 0 c b . . . t a m b < 5 0 c c . . . t a m b < 4 0 c d . . . s h o r t t e r m a d 15/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany 16/27 p r e l i m i n a r y 17. p rotection f eatures output protection electronically protected against overload , no-load and short-circuits *) output over-voltage pr otection typ. 30.5vdc max. 32vdc in case of an internal pow er supply defect, a redundant circuit limits the maximum output voltage. the output shuts down and automatically attempts to restart. degree of protecti on ip 20 en/iec 60529 caution: for use in a contro lled environment according to csa 22.2 no 107.1-01. penetration protection > 5mm e.g. screws, small parts over-temperature protection yes output shut-down with automatic restart input transient protection mo v (metal oxide varistor) internal input fuse included not user replaceable slo w-blow high-braking capacity fuse *) in case of a protection event, audible noise may occur. 18. s afety f eatures input / output separation *) selv iec/en 60950-1 pelv iec/en 60204-1, en 62477-1, iec 60364-4-41 double or reinforced insulation class of protection i pe (protect ive earth) connection required isolation resistance > 500mohm at deliver ed condition between input and output, measured with 500vdc > 500mohm at delivered condi tion between input and pe, measured with 500vdc > 500mohm at delivered condi tion between output and pe, measured with 500vdc > 500mohm at delivered condition between output and dc-ok contacts, measured with 500vdc pe resistance < 0.1ohm resistance between pe terminal and the housing in the area of the din-rail mounting bracket. touch current (leakage current) typ. 0.12ma / 0.31ma 100vac, 50hz, tn-,tt-mains / it-mains typ. 0.18ma / 0.45ma 120vac, 60h z, tn-,tt-mains / it-mains typ. 0.30ma / 0.76ma 230vac, 50h z, tn-,tt-mains / it-mains max. 0.16ma / 0.38ma 110vac, 50h z, tn-,tt-mains / it-mains max. 0.23ma / 0.55ma 132vac, 60h z, tn-,tt-mains / it-mains max. 0.39ma / 0.94ma 264vac, 50h z, tn-,tt-mains / it-mains *) double or reinforced insulation
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 19. d ielectric s trength the output voltage is floating and has no ohmic connection to the ground. type and factory tests are conducted by the manufacturer. field tests may be c onducted in the field using the appropr iate test equipment which applies the voltage with a slow ramp (2s up and 2s down). connect all input-terminals togeth er as well as all ou tput poles before conducting the test. when testing, set the cut-off current settings to the value in the table below. fig. 19-1 dielectric strength a b c d type test 60s 2500vac 3000vac 1000vac 500vac factory test 5s 2500vac 2500vac 500vac 500vac field test 5s 2000vac 2000vac 500vac 500vac cut-off current setting > 10ma > 10ma > 20ma > 1ma ad c b b *) n l input dc-ok earth, pe output - + to fulfil the pelv requirements a ccording to en60204- 1 6.4.1, we recommend that either the + pole, the C pole or any other part of the output circuit shall be conne cted to the protective earth system. this helps to avoid si tuations in which a load starts unexpectedly or can not be swit ched off when unnoticed earth faults occur. b*) when testing input to dc-ok ensure that the max. voltage between dc-ok and the output is not exceeded (column d). we recomm end connecting dc-ok pins and the output pins together when performing the test. 17/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 20. a pprovals ec declaration of conformity the ce mark indicates conformance with the - emc directive, - low-voltage directive and the - atex directive planned iec 60950-1 2 nd edition planned cb scheme, information technology equipment ul 508 planned ind. cont. e q. listed for use as industri al control equipment; u.s.a. (ul 508) and canada (c22.2 no. 107-1-01); e-file: e198865 ul 60950-1 2 nd edition planned recognized for use as information technology equipment, level 5; u.s.a. (ul 60950-1) and canada (c22.2 no. 60950-1); e-file: e137006 applicable for altitudes up to 2000m. ansi / isa 12.12.01-2007 class i div 2 planned recognized for use in hazar dous location class i div 2 tx groups a,b,c,d systems; u.s.a. (ansi / isa 12.12.01-2007) and canada (c22.2 no. 213-m1987) en 60079-0, en 60079-7 atex planned ii 3g ex ec nc ii tx gc approval for use in hazardous locati ons zone 2 category 3g. number of atex certificate: t.b.d. the power supply must be built -in in an ip54 enclosure. iec 60079-0, iec 60079-7 planned iecex suitable for use in class 1 zone 2 groups iia, iib and iic locations. number of ie cex certificate: t.b.d. marine planned gl (germanischer lloyd) classified environmental category: c, emc2 marine and offshore applications eac tr registration planned registration for the eurasian customs union market (russia, kazakhstan, belarus) 21. r o hs, reach and o ther f ulfilled s tandards rohs directive directive 2011/65/eu of the european parliament and the council of june 8 th , 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. reach directive directive 1907/2006/eu of the european parliament and the council of june 1 st , 2007 regarding the registration, evaluation, authorisation a nd restriction of chemicals (reach) 18/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 22. p hysical d imensions and w eight width 48mm 1.89 height 124mm 4.88 depth 127mm 5.0 the din-rail height must be added to the unit depth to calculate the total required installation depth. weight 830g / 1.83lb din-rail use 35mm din-rails according to en 60715 or en 50022 with a height of 7.5 or 15mm. housing material body: aluminium alloy cover: zinc-plated steel installation clearances see chapter 2 fig. 22-1 front view cp20.241, cp20.241-c1 cp20.241- s1 cp20.241-s2 fig. 22-2 side view 19/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 23. a ccessories 23.1. uf20.241 b uffer m odule this buffer unit is a supplementary device for dc 24v power supplies. it delivers power to bridge typical mains failures or extends the hold-up time after turn-o ff of the ac power. in times when the power supply provides sufficient voltages, the buffer unit stores energy in integrated el ectrolytic capacitors. in case of mains voltage fa ult, this energy is released again in a regulated process. one buffer module can de liver 20a additional current. dc buffer unit(s) power supply load ac + - the buffer unit does not require any control wi ring. it can be adde d in parallel to the load circuit at any given point. buffer units can be added in pa rallel to increase the output ampacity or the hold-up time. 23.2. yr40.242 - r edundancy m odules the yr40.242 redundancy module is equipped with two input ch annels (each 20a), which are individually decoupled by utilizing mosfet technology. the output current can be as high as 40a. using mosfets instead of diodes reduces the heat gene ration and the voltage drop between input and output. the yr40.242 doe s not require an additional auxiliary voltage and is self-powered even in ca se of a short circuit across the output. due to the low power losses, the unit is very slender and only requires 36mm width on the din-rail. further information and wiring configur ations can be found in chapter 24.7 . 23.3. yr40.245 - r edundancy m odules the yr40.245 is a 40a single channel redundanc y module, which is eq uipped with a plug connector on the output. the pl ug connector allows replac ing the power supply or the redundancy module while the system is running . the plug connector avoids that the output wires can touch and short the load circu it. the yr40.245 is very slender and only requires 46mm width on the din-rail. it also utilizes mosfet technology instead of diodes for low heat generati on and a minimal voltage drop between input and output. it does not require an additional auxiliary voltage and is self- powered even in case of a short circuit across the output. further information and wiring configur ations can be found in chapter 24.7 . 20/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 23.4. zm5.wall C w all /p anel m ount b racket this bracket is used to mount the devices on a wall/panel without utilizing a din-rail. it is suitable for cp20.241, cp20.241-c1, cp20.241-s1 and cp20.241-s2. the bracket can be mounted without detaching the din-rail brackets. fig. 23-1 isometric view (picture shows the cp20.241) fig. 23-2 isometric view- (picture shows the cp20.241) fig. 23-3 isometric view (picture shows the cp20.241) fig. 23-4 wall/panel mounting, front view (picture shows the cp20.241) fig. 23-5 hole pattern for wall mounting fig. 23-6 wall/panel mounting, side view (picture shows the cp20.241) 21/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24. a pplication n otes 24.1. p eak c urrent c apability the unit can deliver peak currents (up to several milliseconds) which are higher than the sp ecified short term currents. this helps to start current demanding loads. solenoids, contactors and pneumatic modules often have a steady state coil and a pick-up coil. the inrush current demand of the pick-up coil is several times higher than the steady-state current and usually exceeds the nominal output current (including the powerboo st). the same situation applies when starting a capacitive load. the peak current capability also ensures the safe operati on of subsequent circuit breakers of load circ uits. the load branches are often individually protected with circuit breakers or fuses. in ca se of a short or an overload in one branch circuit, the fuse or circuit breaker need a certain amount of over-current to open in a timely manner. this avoids voltage loss in adjacent circuits. the extra current (peak current) is supplie d by the power converter and the built -in large sized output capacitors of the power supply. the capacito rs get discharged during such an event, which causes a vo ltage dip on the output. the following examples show typical voltage dips: fig. 24-1 peak load with 2x the nominal current for 50ms, typ. fig. 24-2 peak load with 5x the nominal current for 5ms, typ. 10ms/div output voltage output current 24v 0a 40a 16v 1ms/div output voltage output current 24v 0a 100a 17v 40a peak load (resistive) for 50ms output voltage dips from 24v to 16v. 100a peak load (resistive) for 5ms output voltage dips from 24v to 17v. fig. 24-3 60a peak load for 12ms, typ. 24v 0a 12ms 60a 20v output voltage output current please note: the dc-ok relay triggers when the voltage dips more than 10% for longer than 1ms. peak current voltage dips typ. from 24v to 16v at 40a for 50ms, resistive load typ. from 24v to 21v at 100a for 2ms, resistive load typ. from 24v to 17v at 100a for 5ms, resistive load 22/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.2. b ack - feeding l oads loads such as decelerating motors and induc tors can feed voltage back to the power supply. this feature is also called return voltage immunity or resi stance against back- e.m.f. (e lectro m agnetic f orce). this power supply is resistant and does not show malfunctioning when a load f eeds back voltage to the power supply. it does not matter whether the power supply is on or off. the maximum allowed feed-back- voltage is 35vdc. the absorbin g energy can be calculated according to the built-in large sized output capacitor wh ich is specified in chapter 6 . 24.3. e xternal i nput p rotection the unit is tested and approved for bran ch circuits up to 30a (ul) and 32a (i ec). an external protection is only required if the supplying branch has an ampacity greater than this. check also local codes and local requirements. in some countries local re gulations might apply. if an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of the circuit breaker. a mi nimum value of 10a b- or c-char acteristic breaker should be used. 24.4. o utput c ircuit b reakers standard miniature circuit breakers (mcbs or ul 1077 circuit breakers) are commonly used for ac-supply systems and may also be used on 24v branches. mcbs are designed to protect wires and ci rcuits. if the ampere value and the char acteristics of the mcb are adapted to the wire size that is used, the wiring is considered as thermally safe rega rdless of whether the mcb opens or not. to avoid voltage dips and under-voltage situations in adjacent 24v branches wh ich are supplied by the same source, a fast (magnetic) tripping of the mcb is desired. a quick shutdown within 10ms is necessary corresponding roughly to the ride-through time of plc's. this re quires power supplies with high current reserves and large output capacitors. furthermore, the impedance of the faulty branch must be sufficiently small in or der for the current to actually flow. the best current reserve in the power su pply does not help if ohms law does not permit current flow. the following table has typical test results showing which b- and c-characteristic mcbs magneti cally trip depending on the wire cross section and wire length. fig. 24-4 test circuit maximal wire length *) for a fast (magnetic) tripping: 0.75mm2 1.0mm2 1.5mm2 2.5mm2 c-2a 31 m 37 m 63 m 98 m c-3a 28 m 34 m 51 m 78 m c-4a 18 m 25 m 38 m 58 m c-6a 9 m 11 m 18 m 26 m c-8a 6 m 7 m 12 m 14 m c-10a 4 m 6 m 11 m 13 m c-13a 2 m 2 m 4 m 7 m b-6a 23 m 28 m 46 m 66 m b-10a 11 m 14 m 19 m 32 m b-13a 7 m 11 m 16 m 29 m b-16a 5 m 6 m 8 m 15 m b-20a 1 m 1 m 2 m 4 m mcb power supply ac dc + - + - load wire length s1... fault simulation switch s1 b-25a 1 m *) dont forget to consider twice the distance to the load (or cable length) when calculating the total wire length (+ and C wi re). 23/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.5. s eries o peration power supplies of the same type can be connected in series for higher output voltages. it is possible to connec t as many units in series as needed, providing the sum of the output volt age does not exceed 150vdc. voltages with a potential above 60vdc are not selv any more and can be dangerous. such voltages must be installed with a protection against touching. unit a input output unit b - + - + load + - input output avoid return voltage (e.g. from a decelerating motor or battery) which is applied to the output terminals. keep an installation clearance of 15 mm (left / right) between two power supplies and avoid installing the power supplies on top of each other. do not use power supplies in series in mo unting orientations other than the standard mounting orientat ion (input terminals on bottom of the unit). pay attention that leakage current, emi, inrush current, ha rmonics will increase when usin g multiple power supplies. 24.6. p arallel u se to i ncrease o utput p ower cp20 power supplies can be paralleled to increase the output power. the output voltage of all power supplies sh all be adjusted to the same value (100mv) in single use mode with the same load conditions on all units, or the units can be left with the factory settings. after the adjustments, set the unit to parallel use mode, in order to achieve load sharing. the parallel use mode regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load. see also chapter 6 . 24/27 if more than three units are connected in parallel, a fuse or circuit breaker with a rating of 30a or 32a is require d on each output. alternatively, a diode or redundancy module can also be utilized. energize all units at the same ti me to avoid the overload hiccup plus mode. it also might be necessary to cycle the input power (turn-off for at least five seconds), if the output was in hiccup plus mode due to overload or short circui ts and the required output current is higher than the current of one unit. unit a unit b - + - + load + - input output input output keep an installation clearance of 15mm (left / right) be tween two power supplies and avoid installing the power supplies on top of each other. do not use power supplies in paralle l in mounting orientations other than the standard mounting orientation (input terminals on bottom of the unit) or in an y other condition where a derating of the output current is re quired (e.g. altitude, above 60c, ). pay attention that leakage current, emi, inrush current, ha rmonics will increase when usin g multiple power supplies.
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.7. p arallel u se for r edundancy cp20 power supplies can be pa ralleled for redundancy to gain higher system availability. redundant systems require a certain amount of extra power to support th e load in case one power supply unit fa ils. the simplest way is to put two power supplies in parallel. this is called a 1+1 redundancy. in case one power supply unit fails, the other one is automatically able to support the lo ad current without any interruption. redundant systems for a higher power demand are usually built in a n+1 method . e.g. five power supplies, each rated for 20a are paralleled to build a 80a redundant system. for n+1 redundancy the same restrictions apply as for in creasing the output power, see also chapter 24.6 . please note: always use a redundancy module to decouple powe r supplies from each other or use power supplies with built in redundancy like the cp20.24 1-r1 (spring-clamp terminals), the cp20.241-r2 (plug connectors for hot swap) or the cp20.241-r3 (screw terminals). this prevents that the defective unit becomes a load for the other power supplies and the output voltage ca nnot be maintained any more. recommendations for building redundant power systems: a) use separate input fuses for each power supply. b) set the power supply in to parallel use mode. c) monitor the individual power supply un its. therefore, use th e dc-ok relay contact of the cp20 power supply. d) it is desirable to set the output voltages of all units to the same value ( 100m v) or leave it at the factory setting. fig. 24-5 1+1 redundant configuration for 20a with one dual redundancy module fig. 24-6 1+1 redundant configuration for 20a with multiple yr40.245 redundancy modules 24v, 20a load l n pe failure monitor yr40.242 *) redundancy module input 1 input 2 output + - + - + - *) yr40.241 also possible l n pe + + - - - cp20.241 power supply adj. dc-ok dc- ok output input l n pe + + - - - cp20.241 power supply adj. dc-ok dc- ok output input i i yr40.245 redundancy module + - input output + - yr40.245 redundancy module + - input output + - l n pe + + - - - cp20.241 power supply adj. dc-ok dc- ok output input l n pe + + - - - cp20.241 power supply adj. dc-ok dc- ok output input 24v, 20a load l n pe i i failure monitor 25/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.8. i nductive and c apacitive l oads the unit is designed to supply any kind of loads, including capacitive and inductive loads. if extreme large capacitors, such as edlcs (electric double layer capa citors or ultracaps) with a capacita nce > 1f are connected to the output, the unit might charge the capacitor in the hiccup plus ? mode (see chapter 6 ). 24.9. c harging of b atteries the power supply can be used to charge lead-acid or maintenanc e free batteries. two 12v sla or vrla batteries are needed in series connection. instructions for charging batteries: a) set output voltage (measured at no load and at the battery end of the cable) very precisely to the end-of-charge voltage. end-of-charge voltage 27. 8v 27.5v 27.15v 26.8v battery temperature 10c 20c 30c 40c b) use a 30a or 32a circuit breaker (or blocking diode) between th e power supply and the battery. c) ensure that the output current of the power supply is below the allowe d charging current of the battery. d) ensure that the ambient temperature of the power supply stays below 40c. e) use only matched batteries when putting 12v types in series. f) the return current to the power supply (battery discharge current) is ty p. 3.5ma when the power supply is switched off (except in case a blocking diode is utilized). 24.10. o peration on t wo p hases 240v +10% max. l2 l1 l3 l n pe power supply ac dc the power supply can also be used on two-phases of a three-phase- system. such a phase-to-phase connection is allowed as long as the supplying voltage is below 240v +10% . 24.11. u se in a t ightly s ealed e nclosure when the power supply is installed in a tightly sealed encl osure, the temperature inside the enclosure will be higher than outside. in such situations, th e inside temperature defi nes the ambient temperatur e for the power supply. the following measurement results can be used as a reference to estimate the temperature rise inside the enclosure. the power supply is placed in the middle of the box , no other heat producing items are inside the box enclosure: rittal typ ip66 box pk 9519 100, plastic, 180x180x165mm load: 24v, 16a; (=80%) lo ad is placed outside the box input: 230vac temperature inside enclosure: 51.7c (i n the middle of the right side of the pow er supply with a distance of 2cm) temperature outside enclosure: 25.9c temperature rise: 25.8k 26/27
cp20.241, cp20.241-c1, cp20.241-s1, cp20.241-s2 cp-series 24v, 20a, s ingle p hase i nput may 2017 / rev. 0.3 ds-cp20.241-en all parameters are typical values specified at 24v, 20a output, 230vac input, 25c ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com phone +49 89 9278 0 germany p r e l i m i n a r y 24.12. m ounting o rientations mounting orientations ot her than all terminals on the bottom require a reduction in continuous output power or a limitation in the maximum allowed ambien t temperature. the amount of reduction influences the lifetime expectancy of the power supply. therefore, tw o different derating curves for cont inuous operation can be found below: curve a1 recommended output current. curve a2 max allowed output current (res ults in approximately half the lifetime expectancy of a1). fig. 24-7 mounting orientation a (standard orientation) power supply output input output current 0 10 20 30 40 60c 6 12 18 24a 50 a 1 ambient temperature fig. 24-8 mounting orientation b (upside down) power supply output input output current 0 10 20 30 40 60c 6 12 18 24a 50 ambient temperature a 2 a 1 fig. 24-9 mounting orientation c (table-top mounting) output current 0 10 20 30 40 60c 6 12 18 24a 50 ambient temperature a 1 a 2 fig. 24-10 mounting orientation d (horizontal cw) power supply output input output current 0 10 20 30 40 60c 6 12 18 24a 50 ambient temperature a 1 a 2 fig. 24-11 mounting orientation e (horizontal ccw) power supply output input output current 0 10 20 30 40 60c 6 12 18 24a 50 ambient temperature a 1 a 2 27/27

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