Product specifications

MOD5 Interface - CI872 Section 5 Maintenance
232 3BSE036351-510 A
MOD5 Interface - CI872
Table 46 provides the indications and possible causes, and the corrective actions for
the faults, appearing in the MOD5 communication interface, type - CI872.
Table 46. MOD5 Communication Interface, Type CI872 - Indications and Fault Finding
Indication Possible Causes, and Corrective Actions (for faults)
Both R(un) and F(ault)
LED's are OFF
Possible Cause 1: The CI872 module is connected to the
controller and the configuration is not downloaded to the
controller for that position.
Corrective Action 1: Ensure that the CI872 module is
configured in the Hardware Tree (in the Control Builder) for
that position, and that the configuration is downloaded to
controller.
Possible Cause 2: The CI872 module is just powered up or
it is being configured and downloaded.
Corrective Action 2: Allow time for the module to initialize.
Corrective Action 3: If the indication persists after
performing the corrective actions 1 and 2, then one of the
following corrective actions is recommended:
Remove and insert the CI872 module to the CEX-Bus
and allow time for it to initialize.
If the CEX-Bus already contains other communication
modules and all the LED's on those modules are OFF,
or if this CI872 is the only module on the CEX-Bus,
then check the CEX-Bus fuse inside the PM86x
Processor Unit.
Corrective Action 4: If the indication still persists after
performing the corrective actions 1 to 3, replace the CI872
module.