Troubleshooting - SICK Direct IN4000 Instrucciones De Servicio

GB
Chapter 7
Tab. 8: Trouble-
shooting for the
IN4000 Direct
(LED indicators
see 3.4 on
page 160)
178
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Fault diagnosis
7.2

Troubleshooting

Problem Possible cause
No LED No supply voltage
indication
• Power • Undervoltage
LED does
• Overvoltage
not flash.
• Sensor
does not
switch.
The sensor Sensor has been
does not placed in the safe
switch, also state (logical "0").
not after Cause:
removal of
• Cross-circuit
actuation
and
renewed
actuation.
• Cross circuit error
• Error detected in
between the
outputs OUT1 and
OUT2
between one of
the outputs and
the supply voltage
the sensor.
Operating instructions
IN4000 Direct
Rectification of the
error
Switch the voltage
supply on.
Check supply
voltage (see 9.1
"Data sheet" on
page 181).
Switch the voltage
supply off and
back on again.
Test the
connections and
their wiring.
Test the
components
connected, e.g.
the PLC.
Rectify possible
cross-circuits.
Replace the
device.
8012183/WI13/2013-01-15
Subject to change without notice