Monitoring and Operating the Controller

Individual key lockout

There are three keys that can be disabled to prevent unauthorized changes to the parameters associated with these keys. First set the “Lock” prompt to NONE.

These keys are:

Run

Hold

Key

- you can disable the Run/Hold key for Set Point

 

Programming at configuration Set Up group prompt

 

“Tuning,” function prompt “RN HLD.”

M-A

Reset

Key

- you can disable the Auto/Manual key at configuration Set

 

Up, group prompt “Tuning”, function prompt “AUTOMA”

SP

Select

Key

- you can disable the Set Point Select function key at

 

configuration Set Up group prompt “Tuning,” function

 

prompt “SP SEL.”

See Subsection 3.4 - Tuning Parameters Set Up Group prompts to enable or disable these keys.

Key error

When a key is pressed and the prompt “Key Error” appears in the lower display, it will be for one of the following reasons:

Parameter not available or locked out

Not in setup mode, press SET UP key first

Individual key locked out.

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UDC2500 Universal Digital Controller Product Manual

4/07

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Image 106
Honeywell UDC2500 manual Individual key lockout, Key error