Power-Up Tests; Status Tests; Table 7-2 Procedure For Displaying The Status Test (Numeric Code 1200) Results - Honeywell UDC2500 Product Manual

7.3 Power-up Tests

What happens at power-up
When power is applied, the controller will run three diagnostic tests. After these tests are
completed, "TEST DONE" is displayed.
Test Failures
If one or more of these tests fail, the controller will go to the Failsafe Manual Mode, and
FAILSF will flash in the lower display and a message indicating which test failed will
appear in the lower display. Then, "DONE" will appear in the lower display.
Three Position Step test failures
For controller configured for Three Position Step Control with motor position indication
and Auto-cal has never been done, the prompt CAL MTR will appear to suggest that the
controller be calibrated.
7.4

Status Tests

Introduction
When required, the results of these tests can be checked to determine the reason the
controller has gone to Failsafe.
How to check the status tests
The procedure in Table 7-2 tells you how to display the results of the status tests.
Table 7-2 Procedure for Displaying the Status Test (Numeric Code 1200)
Step Operation
Select
1
STATUS
Set Up Group
Read the test
2
results
4/07
Press
Upper Display = READ
Setup Setup
Lower Display = STATUS
You will see:
Function Function Function
Upper Display = NO or YES YES indicates a failure
Lower Display = FAILSAFE
Upper Display = PASS or FAIL
Function Function Function
Lower Display = TEST
UDC2500 Universal Digital Controller Product Manual
Results
Result
Troubleshooting/Service
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