Absolute encoders - SSI Hollow shaft max. ø14 mm Optical multiturn encoders 14 bit ST / 12 bit MT G0M2H - SSI Features –– Encoder multiturn / SSI –– Optical sensing –– Resolution: singleturn 14 bit, multiturn 12 bit –– Hollow shaft max. ø14 mm –– Compact design –– Cost-efficient mounting –– High reliability by self-diagnostics –– Counting direction input –– Available with additional incremental output Technical data - mechanical design Voltage supply Housing ø58 mm Shaft ø12 mm hollow shaft ø14 mm hollow shaft Protection DIN EN 60529 IP 54 Operating speed ≤6000 rpm (mechanical) ≤6000 rpm (electric) Rotor moment of inertia 20 gcm² 10...30 VDC Reverse polarity protection Yes Consumption w/o load ≤50 mA (24 VDC) Initializing time (typ.) 20 ms after power on Interfaces SSI, Incremental A 90° B (optional) Steps per turn 16384 / 14 bit Number of turns 4096 / 12 bit Materials Incremental output 2048 pulses A90°B + inverted Housing: aluminium Flange: aluminium Operating temperature Absolute accuracy ±0.025° -25...+85 °C -40...+85 °C (optional) Sensing method Optical Relative humidity 95 % non-condensing Code Gray or binary Resistance Code sequence CW/CCW coded by connection Inputs SSI clock Control signals UP/DOWN and zero DIN EN 60068-2-6 Vibration 10 g, 16-2000 Hz DIN EN 60068-2-27 Shock 200 g, 6 ms Weight approx. 400 g Output circuit SSI data linedriver RS485 Diagnostic outputs push-pull E-connection Connector, 12-pin Interference immunity DIN EN 61000-6-2 Emitted interference DIN EN 61000-6-4 Diagnostic functions Self-diagnosis Code continuity check Multiturn sensing Approval UL approval / E63076 1 www.baumerivo.com 29/10/2008 Technical data - electrical ratings Subject to modification in technic and design. Errors and omissions excepted. G0M2H hollow shaft Absolute encoders - SSI Hollow shaft max. ø14 mm Optical multiturn encoders 14 bit ST / 12 bit MT G0M2H - SSI Part number Accessories G0M2H. Connectors and cables (page %S) Pulses / Incremental output 02 No incremental output 04 2048 pulses / push-pull 06 2048 pulses / RS422 E-connection A1 Connector M23, 12-pin, radial A3 Connector M23, 12-pin, radial, for incremental output 04/06 21 Cable 1 m, radial 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 Z 182.001 Female connector M23, 12-pin, less cable (incr.) Z 182.003 Female connector M23, 12-pin, 2 m (incr.) Mounting accessories (page %S) Voltage supply / signals 10...30 VDC / gray code 25 bit 10...30 VDC / binary code 25 bit 10...30 VDC / gray code 24 bit 10...30 VDC / gray code 26 bit 10...30 VDC / binary code 26 bit Hollow shaft Hollow shaft ø12 mm without pin Hollow shaft ø12 mm with pin 15 mm Hollow shaft ø12 mm with pin 9.5 mm Hollow shaft ø14 mm without pin Hollow shaft ø14 mm with pin 15 mm Hollow shaft ø14 mm with pin 9.5 mm Z 119.023 Spring coupling for encoders with ø58 mm housing Z 119.024 Torque support and spring washer for encoders with 9.5 mm pin Z 119.041 Torque support by rubber buffer element for encoders with 15 mm pin Z 119.050 Spring coupling Z 119.053 Spring coupling height 19.1 mm Z 119.070 Spring coupling height 29.1 mm Z 119.072 Spring coupling for encoders with ø58 mm housing, hole distance 73 mm Z 119.073 Spring coupling for encoders with ø58 mm housing, hole distance 68 mm Z 119.076 Spring coupling for encoders with ø58 mm housing Z 119.082 Spring coupling for encoders with ø58 mm housing, hole distance 63 mm Data transfer Trigger level tp T=1/f tm clock data tv bit n bit n-1 bit 3 bit 2 bit 1 Clock frequency f 62.5...1500 kHz Scan ratio of T 40...60 % Time lag tv 150 ns Monoflop time tm 25 µs + T/2 Clock interval tp 30 µs SSI Circuit SSI-Clock Optocoupler SSI-Data Linedriver RS485 Control input Input circuit Input level High >0.7 UB Input level Low <0.3 UB Input resistance 10 kΩ Incremental outputs Output circuit Linedriver RS422 Output level High >2.5 V (I = -20 mA) Output level Low <0.5 V (I = 20 mA) Push-pull circuit-proof Output level High 2 >UB 3.5 V (I = -20 mA) Output level Low <0.5 V (I = 20 mA) Load High <20 mA Load Low <20 mA www.baumerivo.com Subject to modification in technic and design. Errors and omissions excepted. 0 1 B 4 5 F Female connector M23, 12-pin, less cable 29/10/2008 10 12 20 90 92 Z 130.001 Absolute encoders - SSI Hollow shaft max. ø14 mm Optical multiturn encoders 14 bit ST / 12 bit MT G0M2H - SSI Terminal significance Terminal assignment UB Encoder voltage supply. G0M2H 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 DATAVALID Pin 9 pink UP/DOWN Pin 10 black/yellow DATAVALID MT 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. Pin 11 – – Pin 12 – – Diagnostic output. An error warning is given at level Low. Important: Interferences must be filtered by the downstram electronics. Clock- Zero setting DATAVALID 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. G0M2H with inremental tracks DATAVALID MT Diagnostic output for monitoring the multiturn sensor voltage supply. Upon dropping below a defined voltage level the DV MT output is switched to Low. UP/DOWN Incremental Outputs 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. Connector Core colour Assignment Pin 1 brown UB Pin 2 white GND Pin 3 blue Clock+ Pin 4 green Data+ Pin 5 grey Zero setting Pin 6 yellow Data- Pin 7 red Clock- Pin 8 red/blue Track B inv. Pin 9 pink UP/DOWN Pin 10 violet Track a inv. Pin 11 black Track A Pin 12 grey/pink Track B 8 Incremental tracks A 90° B and inverted. 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 3 9 1 11 4 www.baumerivo.com Subject to modification in technic and design. Errors and omissions excepted. Clock+ 29/10/2008 Data- Absolute encoders - SSI Hollow shaft max. ø14 mm Optical multiturn encoders 14 bit ST / 12 bit MT G0M2H - SSI Dimensions M x6 15 (9.5) 58 50 (6 x) ø14 H7 (ø12 H7) 58 7.5 50 7.5 15 59 17 47 42 15° 1 3.5 12 6 Subject to modification in technic and design. Errors and omissions excepted. 30 4 www.baumerivo.com 29/10/2008 59 ø4 fg6 3 58 20