Approach direction
Horizontal
Can be adjusted in 90° steps
Safety switchThe device may be operated only in conjunction with the actuator CET-A-….
Important: The actuator must be ordered separately.
Each actuator is unique. The switch detects only taught-in actuators. Additional actuators can be taught in. Only the last actuator taught in is detected.
Solenoid operating voltage
- DC 24 V +10% -15%
Guard locking type
CET3 | Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid. The door position is also monitored. The door monitoring output OUT D is set to HIGH as soon as the actuator is above the extended plunger (state: door closed, guard locking not active). The output OUT D remains set also with guard locking active. |
LED function display
LED State | Status LED |
LED DIA | Diagnostic LED |
LED 1 rd | freely configurable |
LED 2 gn | illuminates when door is closed |
Additional connections
OUT | Monitoring output (semiconductor) |
OUT D | Door monitoring output (semiconductor) |
RST | Reset input |
J | Teach-in input |
Category according to EN ISO 13849-1Due to two redundantly designed semiconductor outputs (safety outputs) with internal monitoring suitable for:
- Category 4/PL e according to EN ISO 13849-1
Important: To achieve the stated category in accordance with EN ISO 13849-1, both safety outputs (OA and OB) must be evaluated.
The category is dependent on the installation position of the safety switch:
Escape releaseThis is used for manual release of guard locking from the danger zone without tools.
Dimension drawing
Block diagram
CET: Transponder-coded safety switch with guard locking
Dimension drawingBlock diagram
Technical dataApprovals
Mechanical values and environment
Housing material | |
Slide | Stainless steel |
Safety switch housing | Die-cast aluminum |
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 | |
Z | ±4 mm |
Y | ±5 mm |
X | ±5 mm |
Ready delay | 10 s |
Switching frequency | max.0,5 Hz |
Connection | 2 plug connectors M12, 5 and 8-pin |
Approach speed | 20 m/min |
Guard locking principle | Closed-circuit current principle |
Locking force Fmax | 6500 N |
Locking force FZh | 5000 N |
Electrical connection ratings
Operating voltage DC | |
UB | 24 V DC -15% … 15% Reverse polarity protected, regulated, residual ripple < 5%, PELV |
LED | 24 V DC -15% … 10% |
Current consumption | |
IB | 80 mA |
ICM | 480 mA |
Utilization category according to EN 60947-5-2 | |
DC-13 | 24V 200mA |
Solenoid operating voltage DC | |
UCM | 24 V DC -15% … +10% Reverse polarity protected, regulated, residual ripple < 5%, PELV |
Fusing | |
External (solenoid operating voltage UCM) | 0,5 … 8 A |
External (operating voltage UB) | 0,25 … 8 A |
Power consumption | |
Solenoid | max.12 W |
EMC protection requirements | In acc. with EN IEC 60947-5-3 |
Solenoid duty cycle | 100 % |
Degree of contamination (external, according to EN 60947-1) | 3 |
Connecting cable | 30V DC, 2A |
Safety class | |
EN IEC 61140 | III |
Switching load | |
According to UL | 24V DC, class 2 |
Safety outputs OA/OB | |
Type of output | 2 semiconductor outputs, p-switching, short circuit-proof |
Switching current | |
Per safety output OA / OB | 1 … 200 mA |
Output voltage | |
High U(OA) / U(OB) | UB-1,5V … UB V DC |
Low U(OA) / U(OB) | 0 … 1 V DC |
Off-state current Ir | max.0,25 mA |
Risk time according to EN 60947-5-3 | |
Delay per device | 5 ms |
Single device | max.400 ms |
Switch-on time | 400 ms |
Discrepancy time | |
Both safety outputs | max.10 ms |
Monitoring output OUT | |
Type of output | p-switching, short circuit-proof |
Switching current | |
OUT | 1 … 50 mA |
Output voltage | |
OUT | 0,8xUB … UB V DC |
Switching delay from state change | max.400 ms |
Monitoring output OUT D | |
Type of output | p-switching, short circuit-proof |
Switching current | |
OUT D | 1 … 50 mA |
Output voltage | |
OUT D | 0,8xUB … UB V DC |
Switching delay from state change | max.700 ms |
Teach-in input | |
Input voltage | |
High | 15 … 27,6 V DC |
Low | 0 … 1 V DC |
Work area
Repeat accuracy R | 10 % |
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
Monitoring of guard locking and the safety guard position | |
Category | |
Head upward | 3 |
Head downward or horizontal | 4 |
Performance Level | PL e |
PFHD | |
Head downward or horizontal | 3.1 x 10-9 |
Head upward | 4.29 x 10-8 |
Control of the guard locking | |
Category | Depending on external control of guard locking |
Performance Level | Depending on external control of guard locking |
PFHD | Depending on external control of guard locking |
Mission time | 20 y |