Honeywell UDC3300 Product Manual

1/01 UDC3300 Limit Controller Product Manual 35
4.3 Limit Data Set Up Group
Introduction
Limit control provides a latching output relay which is de-energized
whenever the PV goes above (high limit) or below (low limit) a selected
setpoint value. Reset is through the [RESET] key on the front of the
controller or an optional external switch (Digital Input 1).
Limit group prompts
Table 4-2 lists all the function prompts in the “LIMIT” Set Up group and
their definitions.
Table 4-2 Limit Group Prompt Definitions
Lower Display
Prompt
Upper Display
Range of Setting
or Selection
Parameter
Definition
LO or HI
LO LIM
HI LIM
LOW LIMIT CONTROL —The latching output relay de-
energizes when the PV goes below the configured
setpoint. It cannot be reset until the PV rises above the
configured setpoint.
HIGH LIMIT CONTROL —The latching output relay de-
energizes when the PV goes above the configured
setpoint. It cannot be reset until the PV drops below the
configured setpoint.
EXT RSET
DISABL
ENABLE
EXoNLY
EXTERNAL RESET —Only available with the Digital Input
option. Allows the controller to be reset from a remote
location by contact closure of a momentary-type switch.
DISABL = External reset is not active.
ENABLE = Enables external reset when Digital Input
option is included in the controller.
EXoNLY = Enables external reset and disables the
keyboard [RESET] key.
POWER UP
NORMAL
RESET
POWER UP LOGIC—What condition do you want the
controller to be in at power up.
RESET = Latching relay will have to be reset.
NORMAL = Controller will operate in the same mode as
before power was removed.
SP HILIM
0 to 100% of span
input in engineering units
with decimal place
SETPOINT HIGH LIMIT —This selection prevents the
setpoint from going above the value selected here. The
setting must be equal or less than the upper range of
input 1.
SP LOLIM
0 to 100% of span
input in engineering units
with decimal place
SETPOINT LOW LIMIT—This selection prevents the
setpoint from going below the value selected here. The
setting must be equal or greater than the lower range of
input 1.

Honeywell UDC3300 Specifications

General

Brand	Honeywell
Model	UDC3300
Category	Controller
Language	English