Honeywell UDC2500 ユーザーズマニュアル

When power is applied, the controller will run three diagnostic tests. After these tests are 
completed, “TEST DONE” is displayed.  

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. 

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.  

When required, the results of these tests can be checked to determine the reason the 
controller has gone to Failsafe. 

The procedure in Table 7-2 tells you how to display the results of the status tests. 

Step 

Select  
STATUS 
Set Up Group 

 

 = READ 

 = STATUS 

Read the test 
results 

 

You will see: 

 = NO or YES   YES indicates a failure 

 = FAILSAFE 

 

 

 = PASS or FAIL 

 = TEST