Absolute encoders - SSI Shaft with clamping or synchro flange Magnetic multiturn encoder 12 bit ST / 12 bit MT GCM2W - SSI Features –– Encoder multiturn / SSI –– Magnetic sensing –– Resolution: singleturn 12 bit, multiturn 12 bit –– Clamping flange or synchro flange –– Encoder for heavy-duty applications –– Extreme compact design –– New innovative sensing technology –– Electronic setting of zero point Technical data - mechanical design Voltage supply Housing ø58 mm Shaft ø10 mm (clamping flange) ø6 mm (synchro flange) Flange Clamping or synchro flange Protection DIN EN 60529 IP 54 without shaft seal IP 65 with shaft seal Operating speed ≤10000 rpm (mechanical) ≤6000 rpm (electric) Starting torque ≤0.015 Nm IP 54 ≤0.03 Nm IP 65 10...30 VDC Reverse polarity protection Yes Consumption w/o load ≤60 mA (24 VDC) Initializing time (typ.) 200 ms after power on Interface SSI Steps per turn 4096 / 12 bit Number of turns 4096 / 12 bit Absolute accuracy ±1° Sensing method Magnetic Code Gray or binary Rotor moment of inertia 20 gcm² Code sequence CW/CCW coded by connection Admitted shaft load Inputs SSI clock Control signals UP/DOWN and zero ≤20 N axial ≤40 N radial Materials Housing: steel Flange: aluminium Output circuit SSI data linedriver RS485 Diagnostic outputs push-pull Operating temperature -25...+85 °C -40...+85 °C (optional) Interference immunity DIN EN 61000-6-2 Relative humidity 95 % non-condensing Emitted interference DIN EN 61000-6-4 Resistance Diagnostic functions Self-diagnosis Code continuity check Multiturn sensing DIN EN 60068-2-6 Vibration 10 g, 16-2000 Hz DIN EN 60068-2-27 Shock 200 g, 6 ms Approval UL approval / E63076 Weight approx. 400 g E-connection Connector, 12-pin 1 www.baumerivo.com 30/10/2008 Technical data - electrical ratings Subject to modification in technic and design. Errors and omissions excepted. GCM2W with clamping flange Absolute encoders - SSI Shaft with clamping or synchro flange Magnetic multiturn encoder 12 bit ST / 12 bit MT GCM2W - SSI Part number Accessories GCM2W. Connectors and cables (page %S) 01 E-connection A0 Connector M23, 12-pin, axial A1 Connector M23, 12-pin, radial 10 12 20 22 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 (page %S) Voltage supply / signals 10...30 VDC / gray code 22 bit 10...30 VDC / binary code 22 bit 10...30 VDC / gray code 24 bit 10...30 VDC / binary code 24 bit Flange / Shaft Clamping flange / ø10 mm IP 54 Clamping flange / ø10 mm IP 65 Synchro flange / ø6 mm IP 54 Synchro flange / ø6 mm IP 65 0 A 1 B Z 130.001 Z 119.006 Eccentric fixing, single Z 119.013 Adaptor plate for clamping flange for modification into synchro flange Z 119.015 Mounting adaptor for synchro flange Z 119.017 Mounting angle for clamping flange Z 119.035 Bearing flange for encoders with synchro flange Data transfer tp T=1/f tm clock bit n bit n-1 bit 3 bit 2 bit 1 Clock frequency f 62.5...1000 kHz Scan ratio of T 40...60 % Time lag tv 150 ns Monoflop time tm 20 µs + T/2 Clock interval tp 25 µs Subject to modification in technic and design. Errors and omissions excepted. tv 2 www.baumerivo.com 30/10/2008 data Absolute encoders - SSI Shaft with clamping or synchro flange Magnetic multiturn encoder 12 bit ST / 12 bit MT GCM2W - SSI Terminal significance Terminal assignment UB Encoder voltage supply. Connector Cable 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 Data- Negative, serial data output of differential linedriver. Pin 3 blue Clock+ Pin 4 beige Data+ Clock+ 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. Pin 5 green Zero setting Pin 6 yellow Data- Pin 7 violet Clock- 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. brown/yellow internally reserved pink UP/DOWN Pin 10 black/yellow DATAVALID MT Pin 11 – – Pin 12 – – 8 7 9 1 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 DATAVALID MT Diagnostic output. Multiturn sensor supply control. Upon dropping below a defined voltage level the DV MT output is switched to Low. UP/DOWN Pin 8 Pin 9 11 4 Trigger level 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. 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 Diagnostic outputs Output circuit Push-pull circuit-proof Output level High >UB -3.5 V (I = -20 mA) Output level Low <0.7 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. Zero setting 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. 30/10/2008 Clock- Absolute encoders - SSI Shaft with clamping or synchro flange Magnetic multiturn encoder 12 bit ST / 12 bit MT GCM2W - SSI Dimensions GCM2W clamping flange 48±0.1 M3x7 (3x120°) 46 10 20 ø36f8 ø53 ø58 ø36f8 ø53 ø58 9 11.5 ø10h6 15 3 3 48±0.1 M3x7 (3x120°) 10 20 15 9 59 ø10h6 46 3 3 16 ø58 ø52 59 58 3 4 www.baumerivo.com Subject to modification in technic and design. Errors and omissions excepted. 10 9 ø6f8 ø50h7 4 3 5.5 42±0.1 M4x7 (3x120°) GCM2W connector dimensions 30/10/2008 GCM2W synchro flange