Absolute encoders - SSI Solid shaft with clamping or synchro flange Optical singleturn encoders 14 bit GA240, GA241 - SSI Features –– Encoder singleturn / SSI –– Optical sensing method –– Resolution: 14 bit –– Clamping or synchro flange –– Electronic setting of zero point –– Available with additional incremental output Optional –– Corrosion protection for offshore applications Technical data - mechanical design Voltage supply Size (flange) ø58 mm Protection DIN EN 60529 IP 54 (without shaft seal), IP 65 (with shaft seal) 10...30 VDC Reverse polarity protection Yes Consumption w/o load ≤50 mA (24 VDC) Initializing time typ. 20 ms after power on Operating speed Interfaces SSI, Incremental A 90° B (optional) ≤10000 rpm (mechanical) ≤6000 rpm (electric) Rotor moment of inertia 14.5 gcm² Admitted shaft load ≤20 N axial ≤40 N radial Materials Housing: aluminium Flange: aluminium Operating temperature -25...+85 °C -40...+85 °C (optional) Relative humidity 95 % non-condensing Resistance DIN EN 60068-2-6 Vibration 10 g, 16-2000 Hz DIN EN 60068-2-27 Shock 200 g, 6 ms Weight approx. 250 g Connection Connector M23, 12-pin Cable 1 m Function Singleturn Steps per turn ≤16384 / 14 bit Incremental output 2048 pulses A90°B + inverted Absolute accuracy ±0.025 ° Sensing method Optical Code Gray or binary Code sequence CW/CCW coded by connection Inputs SSI clock Control signals UP/DOWN and zero Output stages SSI data: linedriver RS485 Diagnostic outputs push-pull Incremental: push-pull or linedriver RS422 Interference immunity DIN EN 61000-6-2 Emitted interference DIN EN 61000-6-4 Diagnostic function Self-diagnosis Approval UL approval / E63076 GA240 Shaft type ø10 mm solid shaft Flange Clamping flange Starting torque ≤0.015 Nm (+25 °C, IP 54) ≤0.03 Nm (+25 °C, IP 65) GA241 1 Shaft type ø6 mm solid shaft Flange Synchro flange Starting torque ≤0.01 Nm (+25 °C, IP 54) ≤0.015 Nm (+25 °C, IP 65) www.baumer.com/motion 14/6/2016 Technical data - electrical ratings Subject to modification in technic and design. Errors and omissions excepted. GA240 with clamping flange Absolute encoders - SSI Solid shaft with clamping or synchro flange Optical singleturn encoders 14 bit GA240, GA241 - SSI Part number Clamping flange GA240. 05 14 16 17 Pulses / Incremental output No incremental output 2048 pulses / push-pull 2048 pulses / RS422 2048 periods / SinCos* Connection A0 Connector M23, 12-pin, axial A1 Connector M23, 12-pin, radial A5 Connector M23, 12-pin, radial, for incremental output 14/16/17 11 Cable 1 m, axial 21 Cable 1 m, radial 71 Cable 1 m, axial, for incremental output 14/16/17 81 Cable 1 m, radial, for incremental output 14/16/17 30 32 40 90 92 Voltage supply / signals 10...30 VDC / gray code 13 bit 10...30 VDC / binary code 13 bit 10...30 VDC / gray code 12 bit 10...30 VDC / gray code 14 bit 10...30 VDC / binary code 14 bit * On request 2 www.baumer.com/motion 14/6/2016 Subject to modification in technic and design. Errors and omissions excepted. Flange / Solid shaft 0 Clamping flange / ø10 mm, IP 54 A Clamping flange / ø10 mm, IP 65 Absolute encoders - SSI Solid shaft with clamping or synchro flange Optical singleturn encoders 14 bit GA240, GA241 - SSI Part number Synchro flange GA241. 05 14 16 17 Pulses / Incremental output No incremental output 2048 pulses / push-pull 2048 pulses / RS422 2048 periods / SinCos* Connection A0 Connector M23, 12-pin, axial A1 Connector M23, 12-pin, radial A5 Connector M23, 12-pin, radial, for incremental output 14/16/17 11 Cable 1 m, axial 21 Cable 1 m, radial 71 Cable 1 m, axial, for incremental output 14/16/17 81 Cable 1 m, radial, for incremental output 14/16/17 30 32 90 92 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 Flange / Solid shaft 1 Synchro flange / ø6 mm, IP 54 B Synchro flange / ø6 mm, IP 65 3 www.baumer.com/motion 14/6/2016 Subject to modification in technic and design. Errors and omissions excepted. * On request Absolute encoders - SSI Solid shaft with clamping or synchro flange Optical singleturn encoders 14 bit GA240, GA241 - SSI Accessories Trigger level Connectors and cables SSI Circuit SSI-Clock Optocoupler SSI-Data Linedriver RS485 Z 130.001 Female connector M23, 12-pin, without cable Z 130.003 Female connector M23, 12-pin, 2 m cable Z 130.005 Female connector M23, 12-pin, 5 m cable Z 130.007 Female connector M23, 12-pin, 10 m cable Control inputs Input circuit Z 182.001 Female connector M23, 12-pin, without cable (incr.) Input level High >0.7 UB Input level Low <0.3 UB Z 182.003 Female connector M23, 12-pin, 2 m (incr.) Input resistance 10 kΩ Mounting accessories for GA240 Z 119.006 Eccentric fixing, single Incremental outputs Z 119.013 Adaptor plate for clamping flange for modification into synchro flange Output circuit Push-pull circuit-proof Output level High >UB -3.5 V (I = -20 mA) Output level Low <0.5 V (I = 20 mA) Load High / Low <20 mA Incremental outputs Linedriver RS422 Output level High >2.5 V (I = -20 mA) Output level Low <0.5 V (I = 20 mA) Load High / Low <20 mA Outputs SinCos Output level 1 Vpp ±10 % Load <10 mA Z 119.017 Mounting adaptor for clamping flange (M3) Z 119.025 Adaptor plate for clamping flange, mounting by eccentric fixings (order separately) Mounting accessories for GA241 Z 119.006 Eccentric fixing, single Z 119.015 Mounting adaptor for synchro flange Z 119.035 Bearing flange for encoders with synchro flange Data transfer tp T=1/f tm Diagnostic output tv bit n bit n-1 bit 3 bit 2 bit 1 Clock frequency f 62.5...1500 kHz Duty cycle of T 40...60 % Delay time tv 150 ns Monoflop time tm 26 µs + T/2 Clock interval tp 30 µs 4 Output level Low ≤0.5 V (I = 20 mA) Load Low ≤40 mA www.baumer.com/motion 14/6/2016 data Subject to modification in technic and design. Errors and omissions excepted. NPN-Open Collector – 10 kΩ to UB internally connected clock Absolute encoders - SSI Solid shaft with clamping or synchro flange Optical singleturn encoders 14 bit GA240, GA241 - SSI Terminal significance Terminal assignment UB Encoder voltage supply. GA240, GA241 GND Encoder ground connection relating to UB. Connector Core colour Assignment Data+ Positive, serial data output of differential linedriver. Pin 1 brown UB Negative, serial data output of differential linedriver. Pin 2 black GND Pin 3 blue Clock+ Pin 4 beige Data+ Pin 5 green Zero setting Pin 6 yellow Data- Pin 7 violet Clock- Pin 8 brown/yellow UBminOK Pin 9 pink UP/DOWN Pin 10-12 – – Clock- Zero setting UBminOK UP/DOWN Incremental Outputs Positive SSI 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. GA240, GA241 with incremental tracks | SinCos Diagnostic output. Level low indicates the operating voltage has dropped below the minimum limit. 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. Connector Core colour Assignment Incremental SinCos Pin 1 brown UB UB Pin 2 white GND GND Pin 3 blue Clock+ Clock+ Pin 4 green Data+ Data+ Pin 5 grey Zero setting Zero setting Pin 6 yellow Data- Data- Pin 7 red Clock- Clock- Pin 8 red/blue Track B inv. Cosine Pin 9 pink UP/DOWN UP/DOWN Pin 10 violet Track A inv. Sine Pin 11 black Track A Sine Pin 12 grey/pink Track B Cosine 8 7 10 12 2 Please use cores twisted in pairs (for example clock+ / clock-) for extension cables of more than 10 m length. 3 6 5 5 9 1 11 4 www.baumer.com/motion Subject to modification in technic and design. Errors and omissions excepted. Clock+ 14/6/2016 Data- Absolute encoders - SSI Solid shaft with clamping or synchro flange Optical singleturn encoders 14 bit GA240, GA241 - SSI Dimensions GA240 - SSI, clamping flange ¡K ¡K ¡I ¡ ¡ ¡K 0[[ GA241 - SSI, synchro flange GA240, GA241 - SSI, connector dimensions 58 6 www.baumer.com/motion 14/6/2016 Subject to modification in technic and design. Errors and omissions excepted. 59 ¡I ¡K ¡ ¡ 0[[ ¡I ¡ ¡ ¡I ¡ ¡ ¡I ¡ ¡ ¡K 0[[