Pilz PSEN op4F-A-14-180/1 - Manual (Page 41)

OPERATING MANUAL PSEN op4F/H-A series
1003067-EN-02 41
7.3 Reset
If the light curtain is blocked in a fault state, you can restore normal operation by switching
the light curtain on and off or by activating the RESET function (only with critical errors).
To activate the RESET function, the RESET/RESTART/ALIGN connection (Pin 3 of the 12-
pin connector) must be supplied with 24 V for at least 5 seconds.
If the light curtain does not return to normal operating mode, the light curtain has to be
switched off and on again
. Errors in the internal connections can be cancelled this way.
Fig. 36 – Reset timings
If the error has not been rectified, the light curtain will again switch to a blocked state.
7.4 EDM
The external device monitoring function (EDM) monitors the external devices and checks the
OSSD status.
EDM enabled:
If EDM is enabled in the PNP configuration, the EDM input (Pin 6 of the 12-pin M12
connector - RX) must be connected to a 24 VDC N/C contact on the device to be monitored.
If the EDM is enabled in the NPN configuration, the EDM input (Pin 6 of the 12-pin M12
connector - RX) must be connected to a 24 VDC N/O contact on the device to be monitored.
NOTE: In normal operating mode, the third LED switched on in the user interface
indicates that the function is active.
The following diagrams describe how to connect the EDM input in the event of a PNP
and NPN configuration.
PNP configuration NPN configuration
The function monitors the switching of the 24 VDC N/C contact, based on the OSSD status
changes.