Pepperl+Fuchs HD2-DM-A Manual page 180

Advanced Diagnostics
Appendix
ID
167
169
171
172
173
174
175
Phenomenon
Segment voltage is lower
compared to commission-
ing
Segment voltage is "Out of
specification"
Segment voltage is mea-
sured as zero. Segment is
unpowered
Segment voltage is mea-
sured as zero. Segment is
unpowered
Segment voltage is "Out of
specification"
Segment voltage is too low Fieldbus power supply
Segment voltage is too
low: "Out of specification"
Cause(s)
Terminal failure: corrosion
Fieldbus power supply
replaced with incompatible
model
Fieldbus power supply
failed
Fieldbus power supply
overload
Fieldbus power supply
failed
Fieldbus power supply
failed
Bulk power supply failed
Fieldbus power supply
removed
Cable breakage, short cir-
cuit or terminal connection
failure
Fieldbus power supply
failed
Bulk power supply failed
Fieldbus power supply
removed
Cable breakage, short cir-
cuit or terminal connection
failure
Fieldbus power supply
failed
failed
Terminal failure: corrosion
Topology error - non-work-
ing topology
Terminal failure: corrosion
Fieldbus power supply
failed
Fieldbus power supply
replaced with incompatible
model
Topology error - non-work-
ing topology
Diagnostic device is
wrongly or not connected
to the segment
Action(s)
Check if the resistance of
any terminal is too high
Install correct fieldbus
power supply
Check and replace fieldbus
power supply
Check if there is any con-
nection between fieldbus +
and fieldbus - or remove
devices
Check and replace fieldbus
power supply
Replace fieldbus power
supply module
Check bulk power supply
Install fieldbus power sup-
ply
Check cabling and termi-
nals
Replace fieldbus power
supply module
Check bulk power supply
Install fieldbus power sup-
ply
Check cabling and termi-
nals
Check and replace fieldbus
power supply
Check and replace fieldbus
power supply
Check if the resistance of
any terminal is too high
Check if the topology is
valid according to the field-
bus specification
Check if the resistance of
any terminal is too high
Check and replace fieldbus
power supply
Install correct fieldbus
power supply
Check if the topology is
valid according to the field-
bus specification
Check wiring connection to
the segment
179