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No.EX
※※
-OMU1006-B
9. Troubleshooting
9.1. Troubleshooting
Table 9-1 Troubleshooting for network communication
No.
Problem
Possible cause
Remedy
1
L/A indicator is OFF
No physical connection to Ethernet
network
●Check the cable connection
●Check network settings
Auto-negotiation not successful
2
L/A indicator is Green ON
Connection via Ethernet is OK, but no
connection to the PROFINET
Controller (no PROFINET Controller
available on the Ethernet)
●Check network settings
●Check PROFINET controller is active
3
BF indicator is Red ON
No physical connection on both
PROFINET communication connector
●Check the cable connection
●Check network settings
●Check the L/A indicators
Auto-negotiation not successful
4
BF indicator is Red flashing
The SI Unit is connected to the
Ethernet network, but the following
problem has occurred
---
●The SI Unit is not connected to the
PROFINET Controller
●Check the cable connection
●Check network settings
●Check PROFINET controller is active
●Configuration is defective
Check the configuration
●Device name is not correct
Check the Device names
●The GSD file is not correct
Check the GSD file
●The PROFINET Controller is
defective
Check the PROFINET Controller
Table 9-2 Troubleshooting for diagnostic events
No.
Problem
Possible cause
Remedy
1
SF indicator is Red ON
Power supply is outside the specified
voltage range
●Check the PWR and PWR(V)
indicators
●Check the power supply and supply
voltage level
The SI Unit entered high voltage safe
status
●Check the power supply voltage level
and remedy.
At least one valve coil has a short
circuit
Check the solenoid valves for any
short circuit
Self-test has failed
●Reset the power supply
●Check the diagnostic message
The PROFINET Controller is defective
●Check the PLC mode
2020-10-30 10:03
DL085648