Fault Diagnostic; Extended Diagnostic; Disassembly And Disposal; Disassembly - schmersal SLC 425I Operating Instructions Manual

Operating instructions
Safety light curtain

6.2 Fault diagnostic

The light curtain performs an internal self-test after the operating voltage is switched on and the protection field is enabled. When a fault is detec-
ted, a corresponding flashing pattern is emitted at the receiver through the LED OSSD OFF (red). Every fault emission is followed by a one-second
pause.
LED OSSD OFF Fault feature
OSSD OFF and LED re- Wiring error for function selection (restart interlock, auto-
start continuous flashing matic mode)
1 flashes Error at sensor receiver
2 flashes Error contactor control OFF
3 flashes Error contactor control ON
4 flashes Errors at the OSSD outputs
5 flashes Error configuration data
6 flashes Error blanking

6.3 Extended diagnostic

By means of the optional configuration software and the NSR-0801 BUS converter, an extended diagnostic can be executed. The software provides
the status information of the component and can represent the individual light lines. This feature enables an optimal adjustment of the light curtain.
The diagnostic mode is signalled by the OSSD ON and OSSD OFF LED's at the receiver. In diagnostic mode, protective mode is disabled, the
ODDS outputs being locked. The change from diagnostic mode to protective mode is automatically realised after Power Reset, when the BUS con-
verter is no longer integrated and the connecting cable of the sensor is reconnected.

7. Disassembly and disposal

7.1 Disassembly

The safety switchgear must be disassembled in a de-energised condi-
tion only.

7.2 Disposal

The safety switchgear must be disposed of in an appropriate manner in
accordance with the national prescriptions and legislations.
Action
Check connection at the receiver, bridge 1 or bridge 2
must be wired (refer to Wiring)
Replace receiver
Check connections at contactor control input, refer to
Wiring
Check wiring of the auxiliary contacts
Check connections at contactor control input
Check short-circuit at +UB and mass
Power reset after fault rectification.
Check the wiring of the outputs, OSSD for short-circuit at
+UB and mass
Check the configuration settings by means of the NSR-
0801 BUS converter
The receiver has detected blanked beams as beams
without interruption, i.e. locking.
Check the configuration settings by means of the NSR-
0801 BUS converter, repeat the teach process with
blanking.

8. Appendix

8.1 Contact

Consultancy / Sales:
K.A. Schmersal GmbH
Industrielle Sicherheitsschaltsysteme
Möddinghofe 30
D-42279 Wuppertal
Tel:+49 (0) 202 64 74 -0
Fax:+49 (0) 202 64 74- 100
You will also find detailed information regarding our product variety on
our website: www. schmersal.com
Repair handling / shipping:
Safety Control GmbH
Am Industriepark 11
D-84453 Mühldorf / Inn
Tel.: +49 (0) 8631-18796-0
Fax: +49 (0) 8631-18796-1
EN
SLC 425I
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