Alarms Set Up Group; Table 3-9 Alarms Group Function Prompts - Honeywell UDC2500 Product Manual

3.9

Alarms Set Up Group

Introduction
An alarm is an indication that an event that you have configured (for example—Process
Variable) has exceeded one or more alarm limits. There are two alarms available. Each
alarm has two setpoints. You can configure each of these two setpoints to alarm on
various controller parameters.
There are two alarm output selections, High and Low. You can configure each setpoint to
alarm either High or Low. These are called single alarms.
You can also configure the two setpoints to alarm on the same event and to alarm both
high and low. A single adjustable Hysteresis of 0 % to 100 % is configurable for the
alarm setpoint.
See Table 2-3 in the Installation section for Alarm relay contact information.
The prompts for the Alarm Outputs appear whether or not the alarm relays are physically
present. This allows the Alarm status to be shown on the display and/or sent via
communications to a host computer.
Function Prompts
Function Prompt
Lower Display
A1S1TY

Table 3-9 ALARMS Group Function Prompts

Selection or Range of Setting
Upper Display
NONE
PROC
DE
SHED
FSAF
PrRT
DI
TC W
TC F
UDC2500 Universal Digital Limit ControllerProduct Manual
Parameter
Definition
ALARM 1 SETPOINT 1 TYPE—Select what
you want Setpoint 1 of Alarm 1 to represent.
It can represent the Process Variable,
Deviation, Input 1, Input 2, Output, and if you
have a model with communications, you can
configure the controller to alarm on SHED. If
you have setpoint programming, you can
alarm when a segment goes ON or OFF.
NO ALARM
PROCESS VARIABLE
DEVIATION
SHED FROM COMMUNICATIONS
FAILSAFE
PV RATE OF CHANGE
DIGITAL INPUT 1 ACTUATED
THERMOCOUPLE WARNING (NOTE 1)
THERMOCOUPLE FAILING (NOTE 2)
ATTENTION
NOTE 1. Thermocouple Warning means that
the instrument has detected that the
Thermocouple Input is starting to fail. Not
valid for input types other than Thermocouple.
Configuration
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