Diagnostics and Troubleshooting Fault Detection and Troubleclearing

I/O Module

Diagnostics

(In The User Utility and

Operator Interface)

Menu

Status

Item

 

 

 

Controller

Fault Detection / Troubleclearing

LED on CPU

 

 

 

 

 

 

 

 

Possible Cause

Controller Action

User Action

 

 

 

 

MODULE BAD MODULE

1through

MODULE

POWER LED flashes 11 times.

Analog input or analog output board does not have factory coefficients, or the I/O board is not a supported type.

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

Replace module.

88

UMC800 Controller Installation and User Guide

Release F

 

 

4/01

Page 96
Image 96
Honeywell UMC800 manual Module BAD Module