Honeywell UMC800 Installation And User Manual page 96

Diagnostics and Troubleshooting
Fault Detection and Troubleclearing
I/O Module
Diagnostics
(In The User Utility and
Operator Interface)
Menu
Status
Item
MODULE
BAD MODULE
1 through
MODULE
16
88
Controller
LED on CPU
Possible Cause
POWER Analog input or
LED flashes analog output
11 times. board does not
have factory
coefficients, or the
I/O board is not a
supported type.
UMC800 Controller Installation and User Guide
Fault Detection / Troubleclearing
Controller Action
1. If the error is an
analog input
board with no
factory
coefficients,
default
coefficients will
be used for the
cold-junction
calculations.
2.
If the error is an
analog output
board with no
factory
coefficients,
default
coefficients will
be used for the
outputs.
3.
If the board is an
unsupported
type, these block
types do the
following:
AI – sets its
output to failsafe
DI – sets its
output to OFF
User Action
Replace module.
Release F
4/01