Rockwell Automation T80020 Application Note Diagnostic Procedures - Manual (Page 63)

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AN-T80020 Diagnostics Procedure
Issue 12 Feb 11 AN-T80020 63
SFIU_RELAY_DRIVE_XTALK
0x6Cmn (m=0,1,2,3)
Modules: 8442
Subcode: mn:
m = quadrant (0 to 3)
n = output 0 – 5 Crosstalk between relay commands or diagnostics.
These faults are most likely to be on the module but may be on the
SOFTA. Replace the module, and if the same fault codes appear on
the next module, replace the SOFTA.
Action:Slice fault
SFIU_RELAY_IMON_XTALK
0x6Cmn (m = 4,5,6,7)
Modules: 8442
Subcode: mn:
m = quadrant + 4 (4 to 7)
n = output 0 – 5 Crosstalk between relay current monitor circuits.
These faults are most likely to be on the module but may be on the
SOFTA. Replace the module, and if the same fault codes appear on
the next module, replace the SOFTA
Action:Slice fault
OFIU_AUTO_CALIB
0x6Dnn
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 excessive drift in the switch OFF state current. Compensates
for all reasonable drift. The module recalibrates itself periodically and
notes significant drift.
Before firmware build 130, these faults were repeatedly called if the
module was in Standby and filled the logs. Some modules stop
reporting this fault after a restart.
Swap the module to another module and then swap back again. If the
fault reappears, return the module for repair.
Action:Slice fault
OFIU_PICDI_TEST_ERR
0x6Dmn
Modules:8472
Subcode:m = quadrant (0 to 3)
plus error type (see right),
n = channel (0 to F) Detects a fault in the PIC Discrete Input channel and its circuitry.
Error type:
0: test sequence number is not incrementing
4: quadrant or channel numbers in PIC register don’t match PIC
number
8: measured value is out of range
C: same as 4 using different algorithm
On some 8472s, the PICs are unstable and the log will fill with multiple
0x6D faults and PICDI messages. With working PICs, the test indicates
faults in the measured voltage or the voltage monitoring circuits, with
error type 8.
Return the module for repair.
Action:Slice fault
SFIU_IMON_DISCREP
0x6Dmn
Modules:8442
Subcode:m = (see right), n =
output (0 to 5) Detects current measurement discrepancies in the relay output circuits.
m = 0: Leg 1 Quadrant 1/Quadrant 2 discrepancy
m = 1: Leg 2 Quadrant 1/Quadrant 2 discrepancy
m = 2: Leg to Leg imbalance
Replace and return the Speed Output FTA when possible.
Action:Slice fault