Honeywell UDC 3300 manual OUT HiLIM OUT LoLIM, Revrse Disabl Enable, Hi LIM Lo LIM

Lower Display

Prompt

OUT RATE

PCT/M UP

PCT/M DN

OUT HiLIM

OUT LoLIM

Upper Display

Range of Setting

or Selection

REVRSE

DISABL

ENABLE

0 to 9999 % per minute

0 to 9999 % per minute

–5 to 105 % of output

–5 to 105 % of output

Parameter

Definition

REVERSE ACTING CONTROL— The controller's output decreases as the process variable increases.

OUTPUT CHANGE RATE— Enables or disables the Output Change Rate. The maximum rate is set at prompt PCT/M UP or PCT/M DN.

DISABLE— Disables output rate.

ENABLE— Allows output rate.

OUTPUT RATE UP VALUE— This selection limits the rate at which the output can change upward. Enter a value in percent per minute. Appears only if OUT RATE is enabled. “0” means no output rate applied.

OUTPUT RATE DOWN VALUE— This selection limits the rate at which the output can change downward. Enter a value in percent per minute. Appears only if OUT RATE is enabled. “0” means no output rate.

HIGH OUTPUT LIMIT— This is the highest value of output beyond which you do not want the controller automatic output to exceed.

Use 0 to 100 % for digital output type.

Use 5 to 105 % for current output.

LOW OUTPUT LIMIT— This is the lowest value of output below which you do not want the controller automatic output to exceed.

Use 0 % to 100 % for digital output type.

Use 5 % to 105 % for current output.

*The Local Setpoint will automatically adjust itself to be within the setpoint limit range. For example, if SP = 1500 and the SP HiLIM is changed to 1200, the new Local Setpoint will be 1200.

I Hi LIM

I Lo LIM

DROPOFF

Within the range of the output limits

Within the range of the output limits

–5 to 105 % of output

HIGH RESET LIMIT— This is the highest value of output beyond which you want no reset to occur.

LOW RESET LIMIT— This is the lowest value of output beyond which you want no reset to occur.

CONTROLLER DROPOFF VALUE— Output value below which the controller output will drop off to the low output limit value set in prompt OUTLoLIM.

DEADBAND

–5.0 to 5.0 %

DEADBAND is an adjustable gap between the operating ranges of output 1 and output 2 in which neither output operates (positive value) or both outputs operate (negative value).

FAILMODE

NO LAT

LATCH

FAILSAFE MODE

NON LATCHING—Controller stays in last mode (automatic or manual); output goes to failsafe value.

LATCHING— Controller goes to manual mode; output goes to failsafe value.

4/00 UDC 3300 Process Controller Product Manual 127