Rockwell Automation T80020 Application Note Diagnostic Procedures - Manual (Page 52)

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AN-T80020 Diagnostics Procedure
Issue 12 Feb 11 AN-T80020 52
SFIU_TRIP_AUTO_RESET
0x502n
Subcode: n = output (0 to 5)
Modules:8442 Auto-reset of a 1oo3 trip that persisted for too long. This may be the by-
product of other faults. If the fault is persistent, return the module for
repair.
Action:Slice fault
SFIU_TRIP_AUTO_TRIP
0x503n
Subcode: n = output (0 to 5)
Modules:8442 2oo3 trip that co-erced a 3oo3 trip to maintain congruency. This may be
the by-product of other faults. If the fault is persistent, return the
module for repair.
Action:Slice fault
SFIU_TRIP_AUTO_RE_TRIP
0x504n
Subcode: n = output (0 to 5)
Modules:8442 Re-trip after an auto-reset to prevent a spurious drive signal. This may
be the by-product of other faults. If the fault is persistent, return the
module for repair.
Action:Slice fault
HSIU_ISLDATA_AUX_ERR
0x505n
Subcode: n = slice (see text)
Modules:8442 Background checks on the inter-slice change-over data (‘sanity check’
data word is wrong, CRC mismatch, sequence error). This may be the
by-product of other faults. If the fault is persistent, return the module for
repair.
1 = fault on upstream slice
2 = fault on downstream slice
On slice A: ‘upstream’ = slice B, ‘downstream’ = slice C
On slice B: ‘upstream’ = slice A, ‘downstream’ = slice C
On slice C: ‘upstream’ = slice A, ‘downstream’ = slice B.
Action:Slice fault
IFIU_CHAN_INDEP_FAULT
0x51nn or 0x51mn
Modules:Input, 8442
Detects crosstalk between channels. This could be a channel to
channel external short or interaction, or a short or interaction inside the
module.
For inputs: subcode nn = channel, 0x00 to 0x29 (0 to 41)
(channels 0 and 41 are internal reference channels.)
For 8442: subcode mn, m = group 0 – 2, n = speed input channel 0 – 8.
Swap the module and test it in an unused unconnected slot. If it still
indicates the same fault, return the module for repair. If its replacement
has the same fault, check the field circuits and earthing.
Action:Slice fault