Trusted – Rockwell Automation T80020 Application Note Diagnostic Procedures User Manual

Page 57

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Trusted

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AN-T80020 Diagnostics Procedure

Issue 12 Feb 11

AN-T80020

57

OFIU_ LNK_DSCRP_CMD_ERR
0x60Bn
Modules:8472, 8442
Subcode: n = quadrant (0 to 3) or
all quadrants (5)

If this fault is reported on a single quadrant, it indicates an open/shorted
command between an HIU slice and the FIA of that quadrant. If the
fault is persistent, return the module for repair.
If the fault is reported on all quadrants (60B5), it indicates a
discrepancy between the switch command registers on the HIU slices.
This can be caused by a dead slice, a discrepant MP command to one
of the slices, or a discrepant software overcurrent decision. If there is
not a slice offline, return the module for repair.
Action:Slice fault

OFIU_ LINK_DSCRP_CFG_ERR
0x60Cn
Modules:8472, 8442
Subcode: n = quadrant (0 to 3) or
all quadrants (5)

If this fault is reported on a single quadrant, it indicates an open/shorted
config clock/data line between an HIU slice and the OFIA of that
quadrant. If the fault is persistent, return the module for repair.
If the fault is reported on all quadrants (60C5), it indicates a
discrepancy between the HIU slices. This is usually caused by a dead
slice. If there is not a slice offline, return the module for repair.
Action:Slice fault

The RPM and acceleration discrepancy faults below have incorrect subcodes. The last digit is always
the input channel number within the speed group. However, the speed group number (0,1,2) has been
OR-masked with the third digit, so these faults will be spread over 60Dn to 60Fn. This error is present
in 8442 firmware builds up to 136 and has not been fixed at the time of writing. Review the other
messages in the log to find the true fault and group number.

SFIU_RPM_DISCREP
0x60Dn or 0x60En
Modules: 8442
Subcode: n = input within speed
group (0 to 2)

One of the speed input channels is measuring a discrepant speed (with
a difference more than the Speed Discrepancy Threshold set in the
System.INI speed monitor template).
Check the input sensors are working properly. If they are working, and
the module is measuring the input speed, the discrepancy threshold
may need to be increased in the System.INI speed template. If the
module is not seeing a speed signal, check the input FTA.
Action:Slice fault

SFIU_ACCEL_DISCREP
0x60En or 0x60Fn
Modules: 8442
Subcode: n = input within speed
group (0 to 2)

One of the speed input channels is measuring a discrepant
acceleration (with a difference more than the Acceleration Discrepancy
Threshold set in the System.INI speed monitor template).
Check the input sensors are working properly. If they are working, and
the module is measuring the input speed, the discrepancy threshold
may need to be increased in the System.INI speed template. If the
module is not seeing a speed signal, check the input FTA.
Action:Slice fault

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