Operating Instructions
Transponder-Coded Safety Switch CTP/CTA-L1/2-BP
6
(translation of the original operating instructions) 2537377-01-05/21
3. Description of the safety function
Devices from this series feature the following safety functions:
Monitoring of guard locking and the position of the guard
(interlocking device with guard locking according to EN ISO 14119)
Ì
6.5. Switching states on page 10
):
-The safety outputs are switched off when guard locking is released (monitoring of the locking element).
-The safety outputs are switched off when the guard is open (monitoring of the door position).
-Guard locking can be activated only when the actuator is located in the switch head (prevention of inadvertent locking
position (faulty closure protection)).
Ì
Safety characteristics: category, Performance Level, PFH
D
(see chapter
).
Control of guard locking for variants with IMP/IMM connection
If the device is used as guard locking for personnel protection, the control of the guard locking must be regarded as a
safety function.
The device does not feature a safety characteristic for the control of the guard locking, because the guard locking solenoid
is completely disconnected from outside the device (no control function within the device). It therefore does not contribute
to the failure probability.
The safety level for the control of the guard locking is defined only by the external control (e.g. PFH
D, ext.
for the standstill
monitor).
Guardlocking Device
PFHD
ext.
(e.g. standstill
monitor)
(locking mean)