Absolute encoders - SSI Hollow shaft max. ø20 mm, SIL3 standard Optical multiturn encoder 13 bit ST / 12 bit MT G1S2B - SSI Features –– Encoder multiturn / 2 x SSI –– Optical sensing –– Resolution: singleturn 13 bit, multiturn 12 bit –– For safety-relevant applications according SIL3 –– Hollow shaft with ø20 mm and stud screw groove –– Redundancy by two separate SSI signals –– High reliability by self-diagnostics –– Additional incremental output signals –– SIL Approval: 793480 Technical data - mechanical design Voltage supply Housing ø90 mm Reverse polarity protection Yes 10...30 VDC Shaft ø20 mm hollow shaft Consumption w/o load ≤60 mA (24 VDC) Protection DIN EN 60529 IP 54 Initializing time (typ.) 1000 ms after power on Operating speed Interfaces SSI, Incremental A, B + inverted ≤3800 rpm (mechanical) ≤6000 rpm (electric) Steps per turn 8192 / 13 bit Rotor moment of inertia 2000 gcm² Number of turns 4096 / 12 bit Materials Incremental output 4096 pulses A90°B Housing: steel Flange: steel Output signals A, B + inverted Operating temperature Absolute accuracy ±0.025° -25...+85 °C -40...+85 °C (optional) Sensing method Optical Relative humidity 95 % non-condensing Code Binary Resistance Code sequence CW: ascending values with clockwise sense of rotation (looking at flange) DIN EN 60068-2-6 Vibration 10 g, 16-2000 Hz DIN EN 60068-2-27 Shock 200 g, 6 ms Weight approx. 1600 g Inputs 2 x SSI clock (optocoupler input) E-connection Connector, 16-pin Output circuit SSI data linedriver RS485 Incremental linedriver RS422 Incremental 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 Temperature control Approval UL approval / E63076 1 www.baumerivo.com 3/11/2008 Technical data - electrical ratings Subject to modification in technic and design. Errors and omissions excepted. G1S2B with hollow shaft Absolute encoders - SSI Hollow shaft max. ø20 mm, SIL3 standard Optical multiturn encoder 13 bit ST / 12 bit MT G1S2B - SSI Part number G1S2B. Accessories 1 Connectors and cables (page %S) B1 Output circuit 01 Incremental push-pull 02 Incremental linedriver RS422 Z 131.001 Mating connector M23, 16-pin, less cable Z 131.003 Mating connector M23, 16-pin, 2 m cable Z 131.005 Mating connector M23, 16-pin, 5 m cable Z 131.007 Mating connector M23, 16-pin, 10 m cable Mounting accessories (page %S) E-connection B1 Connector M23, 16-pin, radial Voltage supply / signals 12 10...30 VDC / binary code 25 bit (13+12) 22 10...30 VDC / binary code 22 bit (12+10) 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 119.043 Spring coupling for GX and G1 Hollow shaft 1 Hollow shaft ø20 mm with stud screw profile Data transfer tp T=1/f tm clock bit n bit n-1 bit 3 bit 2 bit 1 Number of data bits n Bit n... Position data (MSB) ...Bit 4 Position data (LSB) Bit 3 Battery control (1 = low voltage) Bit 2 Collective error (1 = error state) Bit 1 Life bit, changing with each transmission Clock frequency f 62.5...1500 kHz Scan ratio of T 40...60 % Time lag tv 200 ns Monoflop time tm 20...30 µs Clock interval tp 200 µs Subject to modification in technic and design. Errors and omissions excepted. tv 2 www.baumerivo.com 3/11/2008 data Absolute encoders - SSI Hollow shaft max. ø20 mm, SIL3 standard Optical multiturn encoder 13 bit ST / 12 bit MT G1S2B - SSI Terminal significance Terminal assignment UB Encoder voltage supply. Connector Assignment GND Encoder ground connection relating to UB. Pin 1 Clock- (1) Data+ Positive, serial data output of differential linedriver. Pin 2 Clock+ (1) Negative, serial data output of differential linedriver. Pin 3 Data+ (1) Pin 4 Data- (1) Pin 5 – Pin 6 – Pin 7 Clock- (2) Pin 8 Clock+ (2) Pin 9 Data+ (2) Pin 10 Data- (2) Pin 11 Track A Pin 12 Track A inv. Pin 13 Track B Pin 14 Track B inv. Pin 15 UB Pin 16 GND Clock- Incremental Outputs Positive SSI clock input. Clock+ together with clock- is forming 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+ is forming a current loop. A current of approx. 7 mA towards clock- input means logic 0 in positive logic. Incremental tracks A 90° B and inverted signals. LED status yellow Ready for operation, less data green Ready for operation, with data red DV (Display position error 2.5 s) green or yellow flashing DV-BAT (battery low) red with pulsing in green After power on: Self-test error, not ready for operation 10 11 1 9 16 13 2 12 8 15 14 3 7 4 6 5 Please use cores twisted in pairs (for example clock+ / clock-) for extension cables of more than 10 m length. Trigger level 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 3 Output level High >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. Clock+ 3/11/2008 Data- Absolute encoders - SSI Hollow shaft max. ø20 mm, SIL3 standard Optical multiturn encoder 13 bit ST / 12 bit MT G1S2B - SSI Dimensions ø90 ø45 56 6.5 M3 x 6 (2x) 19 11.7 ø60 +0.1 ø20F7 2x DUO-LED 1 3.4 -0.1 6.5 Subject to modification in technic and design. Errors and omissions excepted. 41 4 www.baumerivo.com 3/11/2008 5G9 59.5 21 M4 x 8 (3x)