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| Absolute encoders - SSI End shaft max. o14 mm Optical singleturn encoder 14 bit GXA2S - SSI Features - Encoder singleturn / SSI - Optical sensing - Resolution: 14 bit - End shaft o12 mm / o14 mm - Electronic setting of zero point - Permanent check of code continuity - Counting direction input - For high positive and negative acceleration - Available with additional incremental output GXA2S with end shaft Technical data - electrical ratings Voltage supply Consumption w/o load Initializing time (typ.) Interfaces Steps per turn Incremental output Absolute accuracy Sensing method Code Code sequence Inputs 10...30 VDC 50 mA (24 VDC) 20 ms after power on SSI, Incremental A 90 B (optional) 16384 / 14 bit 2048 pulses A90B + inverted 0.025 Optical Gray or binary CW/CCW coded by connection SSI clock Control signals UP/DOWN and zero SSI data linedriver RS485 Diagnostic and incremental outputs DIN EN 61000-6-2 DIN EN 61000-6-4 Self-diagnosis Code continuity check UL approval / E63076 Reverse polarity protection Yes Technical data - mechanical design Housing Shaft Protection DIN EN 60529 Operating speed Starting torque Rotor moment of inertia Materials Operating temperature Relative humidity Resistance o58 mm o12 mm end shaft o14 mm end shaft IP 54 6000 rpm (mechanical) 6000 rpm (electric) 0.015 Nm IP 54 20 gcm Housing: steel Flange: aluminium -25...+85 C -40...+85 C (optional) 95 % non-condensing Subject to modification in technic and design. Errors and omissions excepted. 30/10/2008 Output circuit DIN EN 60068-2-6 Vibration 10 g, 16-2000 Hz DIN EN 60068-2-27 Shock 100 g, 6 ms 250 g Connector, 12-pin Weight approx. E-connection Interference immunity Emitted interference Diagnostic functions Approval 1 www.baumerivo.com Absolute encoders - SSI End shaft max. o14 mm Optical singleturn encoder 14 bit GXA2S - SSI Part number Singleturn GXA2S. Pulses / Incremental output No incremental output 2048 pulses / push-pull 2048 pulses / RS422 2048 pulses / sine 1 Vpp Accessories Connectors and cables (page %S) Z 130.001 Z 130.003 Z 130.005 Z 130.007 Z 182.001 Z 182.003 Z 182.005 Z 119.023 Z 119.024 Z 119.041 Z 119.050 Z 119.053 Z 119.070 Z 119.072 Z 119.073 Z 119.076 Z 119.082 Data transfer tp Subject to modification in technic and design. Errors and omissions excepted. Female connector M23, 12-pin, less cable Female connector M23, 12-pin, 2 m cable Female connector M23, 12-pin, 5 m cable Female connector M23, 12-pin, 10 m cable Female connector M23, 12-pin, less cable (incr.) Female connector M23, 12-pin, 2 m (incr.) Female connector M23, 12-pin, 5 m (incr.) Spring coupling for encoders with o58 mm housing Torque support and spring washer for encoders with 9.5 mm pin Torque support by rubber buffer element for encoders with 15 mm pin Spring coupling Spring coupling height 19.1 mm Spring coupling height 29.1 mm Spring coupling for encoders with o58 mm housing, hole distance 73 mm Spring coupling for encoders with o58 mm housing, hole distance 68 mm Spring coupling for encoders with o58 mm housing Spring coupling for encoders with o58 mm housing, hole distance 63 mm 02 04 06 07 E-connection A1 Connector M23, 12-pin, radial A3 Connector M23, 12-pin, radial, for incremental output 04/06/07 30 32 90 92 0 1 B 4 5 F Voltage supply / signals 10...30 VDC / gray code 13 bit 10...30 VDC / binary code 13 bit 10...30 VDC / gray code 14 bit 10...30 VDC / binary code 14 bit Mounting accessories (page %S) End shaft End shaft o12 mm without pin End shaft o12 mm with pin 15 mm End shaft o12 mm with pin 9.5 mm End shaft o14 mm without pin End shaft o14 mm with pin 15 mm End shaft o14 mm with pin 9.5 mm T=1/f clock data tv bit n bit n-1 bit 3 bit 2 bit 1 tm Clock frequency f Scan ratio of T Time lag tv Monoflop time tm Clock interval tp 62.5...1500 kHz 40...60 % 150 ns 25 s + T/2 30 s 2 www.baumerivo.com 30/10/2008 Absolute encoders - SSI End shaft max. o14 mm Optical singleturn encoder 14 bit GXA2S - SSI Terminal significance UB GND Data+ DataClock+ Encoder voltage supply. Encoder ground connection relating to UB. Positive, serial data output of differential linedriver. Negative, serial data output of differential linedriver. Positive SS clock input. Clock+ together with clock- forms a current loop. A current of approx. 7 mA towards clock+ input means logic 1 in positive logic. Negative SSI clock input. Clock- together with clock+ forms a current loop. A current of approx. 7 mA towards clock- input means logic 0 in positive logic. Input for setting a zero point anywhere within the programmed encoder resolution. The zero setting operation is triggered by a High impulse and has to be in line with the selected direction of rotation (UP/DOWN). Connect to GND after setting operation for maximum interference immunity. Impulse duration >100 ms. Diagnostic output. An error warning is given at level Low. Important: Interferences must be drained by the downstram electronics. UP/DOWN counting direction input. This input is standard on High. UP/DOWN means ascending output data with clockwise shaft rotation when looking at flange. UP/DOWN-Low means ascending values with counterclockwise shaft rotation when looking at flange. Incremental tracks A 90 B and inverted. Terminal assignment GXA2S Connector Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 Pin 12 Core colour brown black blue beige green yellow violet pink - - - Assignment UB GND Clock+ Data+ Zero setting DataClockUP/DOWN - - - Clock- brown/yellow DATAVALID Zero setting GXA2S with incremental tracks Connector Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 Pin 12 Core colour brown white blue green grey yellow red red/blue pink violet black grey/pink Assignment UB GND Clock+ Data+ Zero setting DataClockTrack B inv. UP/DOWN Track A inv. Track B Subject to modification in technic and design. Errors and omissions excepted. 30/10/2008 DATAVALID UP/DOWN Incremental Outputs Track A 8 7 6 5 12 91 10 11 2 3 4 Please use cores twisted in pairs (for example clock+ / clock-) for extension cables of more than 10 m length. 3 www.baumerivo.com Absolute encoders - SSI End shaft max. o14 mm Optical singleturn encoder 14 bit GXA2S - SSI Trigger level SSI SSI-Clock SSI-Data Control inputs Input level High Input level Low Input resistance Diagnostic outputs or Incremental outputs Output level High Output level Low Load High Load Low Dimensions GXA2S 58 20 15 (9.5) 49.5 7.5 Circuit Optocoupler Linedriver RS485 Input circuit >0.7 UB <0.3 UB 10 k Output circuit Push-pull circuit-proof >UB -3.5 V (I = -20 mA) <0.5 V (I = 20 mA) <20 mA <20 mA Incremental outputs Output level High Output level Low Load High Load Low Outputs Input level Load Linedriver RS422 >2.5 V (I = -20 mA) <0.5 V (I = 20 mA) <20 mA <20 mA Sine / Cosine 1 Vpp 10 % <10 mA Connector dimensions 59 47 42 M 15 (6 x) 16 30 4 www.baumerivo.com 30/10/2008 Subject to modification in technic and design. Errors and omissions excepted. 3 x6 6 1 3.5 o4 fg6 59 o14 H7 x 35 (o12 H7 x 35) |
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