Описание

  • Safety switch with guard locking and integrated evaluation electronics
  • Locking force up to 6500 N
  • Up to 20 switches in series
  • Short circuit monitoring
  • 2 safety outputs (semiconductor outputs)
  • Up to category 4/PL e according to EN ISO 13849-1
  • With plug connector M23 (RC18)
  • Unicode
  • Door monitoring output
  • Teach-in input
  • Approach direction A (default setting on delivery)
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
CET4Open-circuit current principle guard locking by solenoid force. Activation of the guard locking 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 StateStatus LED
LED DIADiagnostic LED
LED 1 rdfreely configurable
LED 2 gnfreely configurable
Additional connections
OUTMonitoring output (semiconductor)
OUT DDoor monitoring output
RSTReset input
JTeach-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: Dimension drawing Block diagram CET: Transponder-coded safety switch with guard locking Dimension drawingBlock 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 IP65/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 1 plug connector M23, 19-pin, RC18
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
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.14 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
Low U(OA) / U(OB) 0 ... 1 V DC
High U(OA) / U(OB) UB-1,5V ... UB V DC
Off-state current Ir max.0,25 mA
Risk time according to EN 60947-5-3
Single device max.400 ms
Delay per device 5 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
Mission time 20 y
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