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8009441/YN36/V3-0/2015-08| SICKOPERATING INSTRUCTIONS|GM35
Subject to change without notice
TROUBLESHOOTING AND CLEARING MALFUNCTIONS
9.3.4 Further tips on troubleshooting
Troubleshooting on the evaluation unit
Fig. 76: LED displays, signals and fuses on the evaluation unit
Evaluation unit not responding
▸ Check power supply to GM35, check operating voltage setting
▸ Check the fuse in the evaluation unit; check the 24 V/5 V supply indicator in the
evaluation unit, when doing so, remove the plug-in terminal on the cable to the receiver.
▸ If these indicators only light up when the plug-in connector has been removed, check the
cabling first.
Communication fault between evaluation unit and GM35 SR-unit
Error message:
Sensor Communication???
The SR-unit sends a constant stream of data to the evaluation unit; if this is not received, a
prompt is output automatically. Check following connections:
▸ Connection between evaluation unit and SR-unit.
▸ Cable connection on the plug-in terminal in the evaluation unit.
▸ Cable to SR-unit.
▸ Outer plug-in connectors on SR-unit.
▸ Inner plug-in connectors in SR-unit.
Relay outputs 1...3
Analog output
Fuses
2.5 AT, 250 V
Operating voltage:
230 V AC – no jumper
115 V AC – jumper
5 V DC
LEDs light up:
Internal voltage supply
present
24 V DC
LEDs light up when inputs
are connected, i.e. a signal is
available.
Digital inputs 1, 2
and 3
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