Rockwell Automation T80020 Application Note Diagnostic Procedures - Manual (Page 61)

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AN-T80020 Diagnostics Procedure
Issue 12 Feb 11 AN-T80020 61
OFIU_I_ERR
0x69nn
Modules:Output except
8442,8480
8472: 69mn, m = (see right), n =
channel (0 to F)
Others: 0x69nn
Subcode:nn = output channel
8471: 0x00 to 0x1F (1 to 32)
Others: 0x00 to 0x27 (1 to 40) This test indicates a fault in the field channel/quadrant/group current
measurement. Return the module for repair.
Action:Slice OFFLINE except 8472 (slice fault)
8472: m = quadrant (0 to 3) + error type: 0 = measurement at range
limit, 4 = imbalance between the two circuit legs, 8 = discrepant or
unknown.
SFIU_IMON_SAMPLE_ERR
0x69mn
Modules:8442
Subcode: mn: m = (see right), n
= channel (0 – 5) The number of received current samples in the last sampling period is
outside of the expected number. Return the module for repair.
Action: Slice fault
m = circuit leg (0 or 2) + quadrant (0 or 1)
OFIU_V_ERR
0x6Ann
Modules:Output except
8442,8480
8472: 6Amn, m = (see right), n =
channel (0 to F)
Others: 0x6Ann
Subcode:nn = output channel
8471: 0x00 to 0x1F (1 to 32)
Others: 0x00 to 0x27 (1 to 40) This test indicates a fault in the field channel voltage measurement. It
may indicate a faulty field voltage measurement or an excess field
supply voltage. If the channel is commanded off, the measurement will
see the whole supply voltage and this test will shut down the module on
an excess supply voltage.
Check the field supply voltage is within the module’s capability, else
return the module for repair.
Action:Slice OFFLINE except 8472 (slice fault)
8472: m = quadrant (0 to 3) + error type: 0 = voltage shows ON and
command is OFF, 4 = unknown state, 8 = discrepant, C = multiple
unknown states.
SFIU_VMON_SAMPLE_ERR
0x6Amn
Modules:8442
Subcode: mn: m = (see right), n
= channel (0 – 5) The number of received voltage samples in the last sampling period is
outside of the expected number. Return the module for repair.
Action: Slice fault
m = quadrant (0 or 1)
OFIU_TOP_SW_SHORT
0x6Bnn
Modules:Output (except 8472,
8442, 8480)
Subcode:nn = output channel
8471: 0x00 to 0x1F (1 to 32)
Others: 0x00 to 0x27 (1 to 40) Detects a top FET short, including a stuck control signal.
The test may be tripped by a very low NLTHRESH or by a field supply
with high ripple or noise. Check these if the replacement module also
shows the same type of faults, otherwise return for repair.
This error code also applies to 8448 input channels.
Action:Slice fault