Absolut No Shaft Encoder CAH 57 S / CAH 57 M SSI
Optical absolute encoder with hollow shaft
Single-turn and multi-turn of high resolution
Resolution
Resolution (Steps/360°):
| 65536 = 16 bit | 8192 = 13 bit | 4096 = 12 bit |
Measuring range
Measuring range
| Single-Turn | 1 turn |
| Multi-Turn | 16384 turns = 14 bit |
| 4096 turns = 12 bit |
Type explanation
CAH 57-M-30G-30-D-SC12/Ø15
| Encoder type | Absolute |
| Hollow shaft | Yes |
| Case diameter | ø 58 mm |
| Number of bits | 12 = 12 bits x 1 turn |
| 13 = 13 bits x 1 turn | |
| 16 = 16 bits x 1 turn | |
| 24 = 12 bits x 4096 turns | |
| 25 = 13 bits x 4096 turns | |
| 28 = 16 bits x 4096 turns | |
| 26 = 12 bits x 16384 turns | |
| 27 = 13 bits x 16384 turns | |
| 30 = 16 bits x 16384 turns | |
| Single-turn | Yes |
| Multi-turn | Yes |
| Electronic adjustment | Yes |
| Supply voltage | 30 = 10 ... 30 VDC |
| Output driver | D-SSI |
| DI | |
| Position of connection | R |
| S | |
| Shaft diameter | ø 15 mm |
Technical data
Close all lists Open all listsMechanical data
| Rotational speed | ≤ 12000 min-1 (Single-turn) |
| ≤ 6000 min-1 (Multi-turn) | |
| Torque | ≤ 3 Ncm |
| Moment of inertia | 30 g cm² |
| Loading of bearings | 110 N radial |
| 40 N axial | |
| Operational life of ball bearings | > 1 x 105 h (1000 min-1) |
| Weight | ≤ 0,5 kg |
Environmental conditions
| Vibration | 100 m/s² (10 ... 1000 Hz) |
| Shock | 300 m/s² (11 ms) |
| Operating temperature | -40 ... +85°C |
| Storage temperature | -40 ... +85°C |
| Atmospheric humidity | ≤ 98% r.h. |
| Protection class | IP 65 (DIN 40050/IEC 144) |
| IP 66 (optional) |
Electrical data
| Scanning type | Optical, without contact |
| Transmitter, infrared | LED |
| Receiver | Photo-Array |
| Scanning frequency LSB | 800 kHz |
| Measurement accuracy | ±½ LSB (12 bit) |
| ± 1 LSB (13 bit) | |
| ± 2 LSB (16 bit) | |
| Supply voltage | Vcc = 10...30 VDC |
| Power consumtion | ≤ 90 mA (Vcc = 24 V) |
Electrical connections
| SSI | |
| Interface | RS485 |
| Clock | Optocoupler |
| Incremental outputs | |
| 1024 pulses per revolution | AA+BB/90° RS422 (optional) |
| Inputs | |
| Rotational direction | CW/CCW |
| Electronic adjustment | RESET (optional) |
Connector 12 pins M23
| Connection | Signal |
|---|---|
| Pin 1 | +Vcc |
| Pin 2 | 0 V GND |
| Pin 3 | Clock+ |
| Pin 4 | Data+ |
| Pin 5 | RESET 1) |
| Pin 6 | Data- |
| Pin 7 | Clock- |
| Pin 8 | A+ 2) |
| Pin 9 | CW/CCW |
| Pin 10 | B+ 2) |
| Pin 11 | B- 2) |
| Pin 12 | A- 2) |
1) optional
2) nur bei Ausgangstreiber "DI"
2) nur bei Ausgangstreiber "DI"
Cable
| Wire colour | Signal |
|---|---|
| White | 0 V GND |
| Brown | +Vcc |
| Green | Clock+ |
| Yellow | Clock- |
| Grey | Data- |
| Pink | Data- |
| Red | CW/CCW |
| Black | RESET 1) |
1) optional
Outline drawing
Version AE 672-411 · Subject to change