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No.EX
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-OMU1006-B
Table 9-4 Troubleshooting for PWR(V) for valves
No.
Problem
Possible cause
Remedy
1
PWR(V) indicator is OFF
Power supply voltage for PWR is
not present
Check the power supply and supply
voltage level
Incorrect wiring
●Check the cable
●Check the wiring and pin assignment
Fuse blown by over voltage
protection (> 40 V)
●Check the power supply voltage
level.
●Replace with a new unit.
2
PWR(V) indicator is
Yellow ON
Incorrect wiring
●Check the cable
●Check the wiring and pin numbers
PWR(V) is not present
Check the power supply voltage level
3
PWR(V) indicator is
Yellow flash
PWR(V) is lower than the
permissible level
●Check the power supply voltage level
●Turn on the Safe power supply
(safety output)
4
PWR(V) indicator is
Green flash
Check the power supply voltage level
5
PWR(V) indicator is
Yellow/Green flashing
Safe power supply (safety output)
for the valve is not active
Turn on the Safe power supply (safety
output)
6
PWR(V) indicator is
Red/Yellow flashing
PWR is higher than the
permissible level
Check the power supply voltage level
Table 9-5 Troubleshooting for valve operation
No.
Problem
Possible cause
Remedy
1
Valve cannot be Turned
ON
No PROFINET and PROFIsafe
communication
Check the LEDs
Safe power supply (safety output)
for the valve is not active
Turn on the Safe power supply
(safety output)
The safe controller requests
operator acknowledgment for the
SI Unit
●Check the diagnostic message
●Reintegrate the SI Unit
PWR or/and PWR(V) is not
present or lower than the
permissible level
●Check the power supply and supply
voltage level
●Check the PWR and PWR(V) LED
indicator
Connection between the SI Unit
and valve manifold is defective
Check the connection between the
SI Unit and valve manifold
The SI Unit and valve output
type(PNP/NPN) do not match
Check the output type(PNP/NPN)
the SI Unit and valves.
Self-test has failed
●Reset the power supply
●Check the diagnostic message
Valve has failed
Replace the valve
programing
Check the program
2020-10-30 10:03
DL085648