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Advanced Diagnostics
Appendix
ID
124
125
126
127
128
129
130
131
132
133
Phenomenon
No Bulk Power Supply (Pri-
mary or Secondary) con-
nected
Type of fieldbus power
supply A differs from B
Fieldbus power condi-
tioner is only supported on
universal motherboard
Fieldbus power supply fail-
ure detected
Segment Power Supply
Module (A or B) failure
detected, no redundancy
available
Both fieldbus power sup-
plies report failure, seg-
ment is unpowered
Both fieldbus power sup-
plies report failure, seg-
ment is powered
Unbalance is "Out of speci-
fication" to the positive pole
Unbalance is "Out of speci-
fication" to the negative
pole
Segment Voltage is out of
range for the given topol-
ogy
Cause(s)
Bulk power supply failed
(Bulk Power Supply (Pri-
mary or Secondary))
Wiring between bulk power
supply and Board failed
Terminal failure: loose con-
nection
Power supply mismatch
Non isolated Power Sup-
ply HD2-FBCL-1.500 not
supported on this mother-
board
Trunk short circuit
Fieldbus power supply
failed
Segment Power Supply
Module (A or B) failed,
redundant power supply
module powers the seg-
ment
Trunk short circuit
Power supplies failed for
the segment
Power supplies failed for
the segment
Short circuit/leakage cur-
rent between fieldbus pos.
pole and shield/ground
Water ingress
Short circuit/leakage cur-
rent between fieldbus neg.
pole and shield/ground
Water ingress
Wrong fieldbus power sup-
ply installed or wrong topol-
ogy configured
Action(s)
Check bulk power supply
(Bulk Power Supply (Pri-
mary or Secondary))
Check if bulk power supply
is correctly wired to the
power supply
Check all terminals for cor-
rect connection
Two different types of field-
bus power supplies are
installed for the same seg-
ment. This is not allowed.
Use only one type of field-
bus power supply for this
segment.
Replace power supply
module or motherboard
Check trunk. If no spur
short circuit protection is
installed, also check spurs.
Replace fieldbus power
supply module
Replace Segment Power
Supply Module (A or B)
Check trunk. If no spur
short circuit protection is
installed, also check spurs.
Check and replace fieldbus
power supplies
Check and replace fieldbus
power supplies
Remove connection
between pos. pole and
shield/ground
Check housings of devices
and junction boxes for
water ingress
Remove connection
between neg. pole and
shield/ground
Check housings of devices
and junction boxes for
water ingress
Replace fieldbus power
supply or correct topology
settings
175
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