Pepperl+Fuchs HD2-DM-A Manual page 194

Advanced Diagnostics
Appendix
ID
312
313
314
315
316
317
318
319
320
8.6 DGW-FF Troubleshooting
LEDs
Behavior
Green PWR is OFF
Red ERR is ON
Red ERR flashes
Yellow Link/Act
flashes
Yellow CH1 is OFF
(FF Mode)
Phenomenon
Segment / spur voltage is
too high
Segment / spur voltage is
too high compared to com-
missioning
Segment / spur voltage is
too high
FDH-1 appears to be con-
nected to a spur
Jitter is "Out of specifica-
tion" and the signal level of
devices is too high for the
given topology
Jitter is Good and the sig-
nal level of devices is too
high for the given topology
Jitter is "Good" and the sig-
nal level of devices is too
high for the given topology
Jitter is "Out of specifica-
tion" and devices signal
level is too high for the
given topology
Segment voltage too high
for the given topology
Cause
No power supply
Hardware failure detected
ADM address conflict
Ethernet communication is active No error
No ADMs detected on channel
Cause(s)
Fieldbus power supply
failed
Device coupler failed
Fieldbus power supply
replaced with incompatible
model
Fieldbus power supply
failed
This is possibly a result of
other errors
Device coupler failed
Device coupler failed
Fieldbus power supply
failed
The signal level of one
device is too high
Not enough terminators
Not enough terminators
Not enough terminators
Not enough terminators
Wrong fieldbus power sup-
ply installed or wrong topol-
ogy configured
Action
Check power supply and wiring
Send device to manufacturer
Check for ADMs that have the
same addresses, one connected
to CH1 other to CH2
Check wiring. Are there ADMs
supposed to be connected to the
channel?
Action(s)
Check and replace fieldbus
power supply
Check device couplers and
device coupler terminals
Install correct fieldbus
power supply
Check and replace fieldbus
power supply
Solve other reported errors
first and check segment
again
Check device couplers and
device coupler terminals
Check device couplers and
device coupler terminals
Check and replace fieldbus
power supply
If FDH-1 is not connected
to a spur, re-check with a
specific segment record
Check if a terminator is
installed on both ends of
the trunk
Check if a terminator is
installed on both ends of
the trunk
Check if a terminator is
installed on both ends of
the trunk
Check if a terminator is
installed on both ends of
the trunk
Replace fieldbus power
supply or correct topology
settings
193