7
2110788-13-03/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CET.-AR-…
EN
Control of guard locking
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 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)
NOTICE
For more information about safe control of guard locking, see chapter 10.12. Notes on operation with
safe control systems on page 35
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety regulations are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
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