Specifications

SQ: 1-31
RS3: Service Quick Reference Guide
Troubleshooting
ControlFile Troubleshooting
Condition
Action
Controller Processor
card will not pass
Power Up
Diagnostics.
Green LED does not
come on.
1. Replace the Controller Processor card.
Controller Processor
card will not start.
The green LED
comes on briefly with
all yellow LEDs on.
1. The y ellow LEDs on the Coordinator Processor and
Nonvolatile Memory cards must be flickering, indicating
that the cards are operating properly. NOTE: if no
Controller Processor card is running inside this
ControlFile, the Nonvolatile Memory card will have only a
green LED on. If the Coordinator Processor and
Nonvolatile Memory card LEDs are not as indicated, see
section on “Coordinator Processor will not load from
Nonvolatile Memory“.
2. Perform a Wipe Bubble c ommand on the suspect
Controller Processor card. Re-enable the Controller
Processor c ard after the Wipe Bubble procedure is
performed. If the Controller Processor now starts, the
plant Configuration m ust be reloaded from disk for that
controller. Refer to the Wipe Bubble Procedure in this
section.
3. Using a disk with the same software level as in the
ControlFile, perform a Disk Load Program command on
that ControlFile. It is normal to have an active hardware
alarm “Program Image Bad” for this node during the Disk
Load Program function. The alarm must clear after the
Disk Load Program is complete. If the Disk Load
Program is successful, try to restart the Controller
Processor c ard.
4. If the Controller Processor card has been jumpered for
additional images, check the jumper positions on the
card. See Chapter 4 of this manual for jumper positions
and locations.
5. Replace the Nonvolatile Memory card if the Disk Load
Program is not successful. (Then attempt the
Nonvolatile Memory Recovery Procedure.)
6. Replace the Controller Processor card.
7. Replace the Coordinator Processor card.
(continued on next page)