15
Fault diagnostic / Troubleshooting
Only the green
Power
LED should light up with the correct wiring and switching-on of the voltage
supply. If one of the other LED’s light up then there is an error in the system which can be localized
by the LED’s.
If the fault is not in the wiring, verify the function of the electronics by applying an 8.2 k
Ω
resistor to
the X1/X2 input of the safety controller. If the electronics work correctly thereafter, the PSS must be
checked by using a resistor measuring instrument (Ohmmeter). For this, the connection between the
safety controller and the PSS must be disconnected, and the PSS must be connected to the measuring
instrument. The resistor value must be 8.2 k
Ω ±
100
Ω
for a not operated PSS, and in the operated
condition the value should not exceed 500
Ω
.
LED
Fault
Fault rectification
LED's do not light up
Supply voltage is failing, to low
or wrongly connected
Verify the connections and the supply
voltage:
A1 A2: 12-24 V AC/DC
toleranz range: +10%
L1,N,PE: 230 V AC 50-60Hz
Connecting cables of the PSS
or the PSS itself is faulty
Verify the connections, the wiring and
the connecting cables of the PSS
(crushed cables, brittle cables etc.).
Verify the PSS*
Testing is faulty
Verify the the Dip-slide switch position.
Verify and/or adapt the test-signal of
the machinery control system / PLC
and switch the Dip-slide switch in the
correct position.
LED Fault lights up
Connecting cables of the PSS
or the PSS itself is faulty
Verify the connections, the wiring and
the connecting cables of the PSS
(crushed cables, brittle cables etc.).
Verify the PSS*
LED Actuate lights up
English
*
