Operating Instructions
Transponder-Coded Safety Switch CET.-AP-…
6
(Translation of the original operating instructions) 2122242-04-05/18
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
Safety function (see chapter
6.8. 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 (failsafe locking mechanism).
Ì
Safety characteristics: category, Performance Level, PFH
D
(see chapter
13. Technical data on page 27
).
Activation of guard locking
If the device is used as guard locking for personnel protection, control of 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 guard locking is determined exclusively by the external control (e.g. PFH
D
ext.
for the
standstill monitor).
Guardlocking Device
PFH
D
ext.
(e.g. standstill
monitor)
(locking mean)
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety instructions are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
