Honeywell UDC3200 manual Controller Failure Symptoms, Other symptoms

5.2 Controller Failure Symptoms

Upper	Lower	Indicators	Controller	Probable
Display	Display		Output	Cause
Blank	Blank	Off	None	Power Failure
OK		OK		Current
				Proportional Output
	Displayed		Controller
OK		OK		Position
	Output		Output	Proportional or
	disagrees		disagrees	TPSC Output
	with Controller		with Displayed
OK	Output	OK	Output	Time Proportional
				Output
OK		OK		Current/Time
				Proportional Output
OK	OK	OK	External Alarm	Malfunction in
			function does	alarm output
			not operate
			properly
Display does not change when a key is pressed				Keyboard
				Malfunction
Controller fails to go into “Slave” operation during communications				Communications
				Failure
OK	Displayed	OK	Controller	Auxiliary Output
	Output		Auxiliary Output
	disagrees with		disagrees
	Auxiliary Output		with Displayed
			Auxiliary Output

Other symptoms

If a set of symptoms or prompts other than the one you started with appears while troubleshooting, re-evaluate the symptoms. This may lead to a different troubleshooting procedure.

If the symptom still persists, refer to the installation section in this manual to ensure proper installation and proper use of the controller in your system.

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