Approach direction
Horizontal
Can be adjusted in 90° steps
Guard locking type
| CET4 | Open-circuit current principle guard locking by control of AS-i output 0. Release by spring force. |
Control of the guard locking solenoidThe guard locking solenoid is controlled by the control system via ASInterface bus bit D0.
AS-Interface inputs
| D0, D1 | Door monitoring |
| D2, D3 | Guard lock monitoring |
Evaluation is performed via a safety monitor.
AS-Interface outputs
| D0 | Guard locking |
| D1 | Red LED |
| D2 | Green LED |
LED function display
- The ASI LED indicates the operating voltage on the bus.
- The State LED indicates if a fault has been detected on the AS-Interface bus.
- The green and the red LEDs can be controlled as required by the control system via the bus using bits D1 and D2.
Dimension drawing
Wiring diagram
Block diagram
CET: Transponder-coded safety switch with guard locking
Dimension drawingWiring diagramBlock diagram
Technical dataApprovals
Mechanical values and environment
| Housing material | |
| Safety switch housing | Die-cast aluminum |
| Slide | Stainless steel |
| Weight | |
| Net | 1 kg |
| Ambient temperature | |
| At UB = 24V DC | -20 … 55 °C |
| Degree of protection | IP67 |
| Resilience to vibration | In acc. with EN IEC 60947-5-2 |
| Mechanical life | 1 x 106 |
| Installation orientation | Any |
| Degree of freedom | |
| X | ±5 mm |
| Y | ±5 mm |
| Z | ±4 mm |
| Switching frequency | max.0,5 Hz |
| Connection | |
| 1x | Plug connector M12 |
| Approach speed | 20 m/min |
| Guard locking principle | Open-circuit current principle |
| Locking force Fmax | 6500 N |
| Locking force FZh | 5000 N |
Electrical connection ratings
| ASi address | 0 |
| ASi voltage | 30 V 22,5 … 31,6 V |
| ASi operating current | 50 mA |
| ASi auxiliary voltage | |
| IEC 60742, PELV | 24 V -15% … +10% |
| ASi auxiliary current | 480 mA |
| Degree of contamination (external, according to EN 60947-1) | 3 |
| ASi slave type | |
| According to ASI specification 2.1 | EA code: 7 |
| ID code: B | |
| ASi data in | |
| According to As-i Safety at Work | D0 |
| D1 | |
| D2 | |
| D3 | |
| ASi data out | |
| Guard locking solenoid | D0 |
| LED red | D1 |
| LED green | D2 |
| ASi LED | |
| LED green | Power |
| LED red | Fault |
| Safety class | |
| EN IEC 61140 | III |
Other
| For the approval according to UL the following applies | Operation only with UL class 2 power supply, or equivalent measures see operating instructions |
Reliability values according to EN ISO 13849-1
| Performance Level | PL e |
| Category | |
| Head downward or horizontal | 4 |
| Head upward | 3 |
| PFHD | |
| Head upward | 4.29 x 10-8 |
| Head downward or horizontal | 3.1 x 10-9 |
| Mission time | 20 y |
