Honeywell UDC2300 Product Manual page 40

Configuration
Prompt Description
ALHYST Alarm Hysteresis
ALARM1 Latching Alarm
Output
BLOCK Alarm Blocking
32
Selection or Range of Setting
A single adjustable hysteresis is provided on
alarms such that when the alarm is OFF it
activates at exactly the alarm setpoint; when the
alarm is ON, it will not deactivate until the variable
is 0.0 % to 100 % away from the alarm setpoint.
Configure the hysteresis of the alarms based on
INPUT signals as a % of input range span.
Range of Setting:
0.0 % to 100.0 % of span
When configured for latching, the alarm will stay
on, after the alarm condition ends, until the
[RUN/HOLD] key is pressed.
NO L Non Latching
LACH Latching
Alarm Blocking prevents nuisance alarms when
the controller is first powered up. The alarm is
suppressed until the parameter gets to the non-
alarm limit or band. Alarm blocking affects both
alarm setpoints.
DIS Disable Blocking
BK1 Block Alarm 1 only
BK2 Block Alarm 2 only
BK12 Blocks both Alarms
UDC2300 Limit Controller Product Manual
Factory
Setting
0.0
NO L
DIS
1/01