Limit Set Up Group; Table 3-5 Limit Group Function Prompts - Honeywell UDC2500 Product Manual

Configuration

3.5 Limit Set Up Group

Introduction
This data deals with the type of Limit Control you want, power up Logic, setpoint high
and low limits, and the default display function Prompts
Function Prompt
Lower Display
LOorHI
POWRUP
SP_MAX
SP_MIN

Table 3-5 LIMIT Group Function Prompts

Selection or Range of Setting
Upper Display
LOW
HIGH
RST
NORM
0 % to 100 % of input in
engineering units
0 % to 100 % of input in
engineering units
UDC2500 Universal Digital Limit ControllerProduct Manual
Parameter
Definition
LOW - Limit Control - latching relay de-
energizes when PV goes below configured
setpoint; cannot be reset until PV rises
above configured setpoint and [MAN-AUTO
RESET] key is pressed.
HIGH - Limit Control - latching relay de-
energizes when PV goes above configured
setpoint; cannot be reset until PV drops
below configured setpoint and [MAN-AUTO
RESET] key is pressed.
RST - after power down, the controller
latching relay will have to be reset.
NORM - after power down, the controller will
operate normally in the same mode as
before power was removed unless a limit has
been exceeded. If the limit was latched at
power down, the unit will be in "Limit" at
power up and have to be reset.
HIGH SETPOINT LIMIT - this selection
prevents the setpoint from going above the
value selected here. The setting must be
equal to or less than the upper range of the
input.
LOW SETPOINT LIMIT - this selection
prevents the setpoint from going below the
value selected here. The setting must be
equal to or greater than the lower range of
the input.
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