Specifications

SQ: 1-33
RS3: Service Quick Reference Guide
Troubleshooting
ControlFile Troubleshooting (continued)
Condition Action
Coordinator
Processor will not
load from the
Nonvolatile Memory
card.
The green LED
comes on briefly, then
the red FAULT LED
comes on.
The top yellow LED is
on.
1. Insure that the Nonvolatile Memory card switch is in the
ENABLE position.
2. Insure that the Nonvolatile Memory card is in the proper
slot within the ControlFile. (See diagram on ControlFile
door.)
NOTE: If the primary Coordinator Processor is running
and the secondary is not, the primary should NOT be
disabled at this time. An attempt should be made to load
the P lant Program into the nonvolatile memory (Disk
Load Program function). If the function fails the
Nonvolatile Memory card must be replaced.
3. Move the Coordinator Processor card to its redundant
slot. If the Coordinator Processor works in the
redundant slot, see the Troubleshooting section on
“Coordinator Processor will not start in one of the two
slots”.
4. Replace the Nonvolatile Memory card.
NOTE: The Nonvolatile Memory Recovery Procedure
may help recover the card if it i s bad. The PeerWay
Boot Procedure i s also available.
5. Replace the Coordinator Processor card.
6. Insure ControlFile upper and lower terminators are
installed c orrectly.
NOTE: If no Controller Processors were running, the
plant configuration must be reloaded from disk.
(continued on next page)