Rockwell Automation T8310 Trusted Expander Processor - Manual (Page 25)

Trusted
TM
Module T8310
Issue 12 Dec 06 PD-T8310 25
5.3. Troubleshooting
Symptom Possible Cause Solution
Lack of power If all other modules within the chassis also show no indicators, check
the power distribution and connection to the chassis. All front
panel
indicators off
Front panel interface
(FCR D) failure Check if other modules within the chassis have LEDs illuminated.
Check if it is possible to communicate with other modules within the
chassis – using either the chassis board type (T8300) or the diagnostic
utility. If communications is possible and this is the only Expander
Processor installed, the failure is within FCRD and the module should
be replaced,
If another Expander Processor module is installed, check its status
indication. If the other module is indicating active mode, check if
communications with the potentially faulty module is possible (again
using either the Expander Chassis board or diagnostic utility). If
communications is possible, note the information returned as part of
the Expander Processor board and then initiate the module
replacement.
Single FCR
indicator
flashing RED Single main FCR
failure. The module will continue to provide communications between the
expander bus and the modules within the chassis. However, the
module should be replaced as soon as practical.
Multiple FCR
indicating
flashing RED Multiple failure. This condition may be indicated briefly during module power-up, but in
other circumstances, this indicates a failure beyond the modules fault
tolerant capabilities.
If the failed module is not the active module, it should be removed
immediately. A replacement module should be installed as soon as
practical.
If the module was the active module, the system will attempt to switch
to the standby, if it is installed and if the failures do not occur
simultaneously.
Flashing
standby
indicator Software detected
fault This indicates that the TMR Processor has detected a fault within the
module and has switched to the previously standby module. The
faulted module should be removed as soon as possible and a
replacement installed as soon as practical.
Both active
or standby
LEDs OFF LED failure This condition may be indicated briefly during module power-up.
If another Expander Processor module is installed within the same
chassis, use its indicators to verify the active/standby mode of this
module. To avoid confusion it is recommended that this module be
replaced at some convenient time, initiating the active/standby
changeover to the other module if necessary.
Expander Interface
Module failure or
missing Check for the presence and healthy state of the Expander Interface
module within the controller chassis.
Expander Bus fault Check the Expander Bus cable assembly is correctly installed at both
the expansion and controller chassis.
Check that there are no faults within the expander bus cabling, replace
any cables found to be defective.
Check that the Expander Processor Module is installed in the correct
slot.
TMR Processor fault If the module is indicating active mode, check that the module is
reported as not installed/responding using the diagnostic utility. If
reported as not responding then replace the module immediately,
otherwise replace the module as soon as practical.
If the module is indicating standby mode of operation, replace the
module as soon as practical.
All Comms
activity LEDs
off
Front panel interface
(FCR D) failure Verify that the module is continuing to respond using the chassis board
type or the diagnostic utility. Replace the module as soon as practical.