Configuration
42 UDC2500 Universal Digital Limit ControllerProduct Manual 8/05
Function Prompt
Lower Display
Selection or Range of Setting
Upper Display
Parameter
Definition
A2S2TY
Value in engineering units
ALARM 2 SETPOINT 2 TYPE—Select what
you want Setpoint 2 of Alarm 2 to represent.
The selections are the same as A1S1TYPE.
ATTENTION Not applicable with Relay
Duplex unless using Dual Relay PWA.
A2S2VA
ALARM 2 SETPOINT 2 VALUE—This is the
value at which you want the alarm type
chosen in prompt A2S2TYPE to actuate.
The details are the same as A1S1 VAL.
A2S1HL
HIGH
LOW
ALARM 2 SETPOINT 1 STATE—Same as
A1S1HL.
ALHYST
0.0 to 100.0 % of span or full
output as appropriate
ALARM HYSTERESIS—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.
Configure the hysteresis of the alarm based
on OUTPUT signals as a % of the full scale
output range.
ALARM1
NO LAT
LATCH
LATCHING ALARM OUTPUT 1—Alarm
output 1 can be configured to be Latching or
Non-latching.
NO LAT—Non-latching
LATCH—Latching
ATTENTION When configured for latching,
the alarm will stay active after the alarm
condition ends until the RUN/HOLD key is
pressed.
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