Absolute encoders - SSI Hollow shaft max. ø50.8 mm Optical multiturn encoder 13 bit ST / 12 bit MT G1M2H, G2M2H - SSI Features –– Encoder multiturn / SSI –– Optical sensing –– Resolution: singleturn 13 bit, multiturn 12 bit –– Hollow shaft of 1” and 2” diameter –– Electronic setting of zero point –– Permanent check of code continuity –– Counting direction input –– High resistance to shock and vibrations –– For high positive and negative acceleration Technical data - mechanical design Voltage supply Protection DIN EN 60529 IP 54 Materials Housing: aluminium Flange: aluminium Bus cover: 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 E-connection Connector, 12-pin 10...30 VDC Reverse polarity protection Yes Consumption w/o load ≤50 mA (24 VDC) Initializing time (typ.) 20 ms after power on Interface SSI Steps per turn 8192 / 13 bit Number of turns 4096 / 12 bit 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 G1M2H - SSI Output circuit SSI data linedriver RS485 Diagnostic outputs push-pull Interference immunity DIN EN 61000-6-2 Emitted interference DIN EN 61000-6-4 Diagnostic functions Self-diagnosis Code continuity check Multiturn sensing Approval Housing ø90 mm Shaft ø25.4 mm hollow shaft Operating speed ≤3800 rpm (mechanical) ≤6000 rpm (electric) Rotor moment of inertia 2000 gcm² Weight approx. 890 g G2M2H - SSI UL approval / E63076 1 Housing ø116 mm Shaft ø50.8 mm hollow shaft Operating speed ≤2000 rpm (mechanical) ≤6000 rpm (electric) Rotor moment of inertia 11000 gcm² Weight approx. 1200 g www.baumerivo.com 30/10/2008 Technical data - electrical ratings Subject to modification in technic and design. Errors and omissions excepted. G1M2H with hollow shaft Absolute encoders - SSI Hollow shaft max. ø50.8 mm Optical multiturn encoder 13 bit ST / 12 bit MT G1M2H, G2M2H - SSI Part number G1M2H. A1 02 G2M2H. A1 E-connection A1 Connector M23, 12-pin, radial E-connection A1 Connector M23, 12-pin, radial Voltage supply / signals 10 10...30 VDC / gray code 25 bit 12 10...30 VDC / binary code 25 bit Voltage supply / signals 10 10...30 VDC / gray code 25 bit 12 10...30 VDC / binary code 25 bit Hollow shaft 0 Hollow shaft ø25.4 mm with pin 15 mm 1 Hollow shaft ø20 mm with pin 15 mm Hollow shaft 0 Hollow shaft ø50.8 mm clamping ring 1 Hollow shaft ø50 mm clamping ring Accessories Data transfer Connectors and cables (page %S) tp T=1/f tm clock bit n bit n-1 bit 3 bit 2 bit 1 Female connector M23, 12-pin, less 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 Mounting accessories for G1M2H - SSI (page %S) Clock frequency f 62.5...1500 kHz Scan ratio of T 40...60 % Time lag tv 150 ns Monoflop time tm 20 µs Clock interval tp 25 µs Z 119.037 Rubber buffer element 18.5 mm long, as torque support Z 119.039 Set of adjusting angles as torque support Z 119.040 Shoulder screw M5 as torque support Z 119.041 Torque support by rubber buffer element for encoders with 15 mm pin Z 119.043 Spring coupling for GX and G1 Z 119.050 Spring coupling Z 119.053 Spring coupling height 19.1 mm Z 119.070 Spring coupling height 29.1 mm Z 119.076 Spring coupling for encoders with ø58 mm housing Mounting accessories for G2M2H - SSI (page %S) 2 Z 119.037 Rubber buffer element 18.5 mm long, as torque support Z 119.039 Set of adjusting angles as torque support Z 119.040 Shoulder screw M5 as torque support 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 119.076 Spring coupling for encoders with ø58 mm housing www.baumerivo.com Subject to modification in technic and design. Errors and omissions excepted. tv Z 130.001 30/10/2008 data 02 Absolute encoders - SSI Hollow shaft max. ø50.8 mm Optical multiturn encoder 13 bit ST / 12 bit MT G1M2H, G2M2H - SSI Terminal significance Terminal assignment UB Encoder voltage supply. Connector Core colour Assignment GND Encoder ground connection relating to UB. Pin 1 brown UB Data+ Positive, serial data output of differential linedriver. Pin 2 black GND Negative, serial data output of differential linedriver. 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 Pin 11 – – Pin 12 – – 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. 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. 8 7 5 2 11 4 Trigger level 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 10 3 6 Diagnostic output. An error warning is given at level Low. Important: Interferences must be filtered by the downstram electronics. 9 1 12 Please use cores twisted in pairs (for example clock+ / clock-) for extension cables of more than 10 m length. 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. 3 SSI Circuit SSI-Clock Optocoupler SSI-Data Linedriver RS485 Control inputs Input circuit Input level High >0.7 UB Input level Low <0.3 UB Input resistance 10 kΩ Subject to modification in technic and design. Errors and omissions excepted. Clock+ www.baumerivo.com 30/10/2008 Data- Absolute encoders - SSI Hollow shaft max. ø50.8 mm Optical multiturn encoder 13 bit ST / 12 bit MT G1M2H, G2M2H - SSI Dimensions G1M2H 90 max. ø25.4 H7 55 13.6 9.5 M3 x 6 ø60 ø50 ø4 fg6 33 12 0 ° 20 M4 x 8 19 16 7.5 15 39.5 59 ø4 H11 3.5 1 12 G2M2H 20 7.5 13.6 12 ø92.2 12 0 19 ø76 ø50.8 H7 ø4fg6 .5 31 ø1 16 42.5 12 59 ø4H11 1 3.5 15 1 7.5 4 www.baumerivo.com Subject to modification in technic and design. Errors and omissions excepted. M3 x 6 ° 116 30/10/2008 57.5