Honeywell UDC 3300 manual Introduction Alarms group prompts, A1S1 VAL A1S2 VAL A2S1 VAL

4.15 Alarms Set Up Group

Introduction

Alarms group prompts

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 2-8 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.

Table 4-14 lists all the function prompts in the Alarms Set Up group and their definitions.

Table 4-14 Alarms Group Definitions

Lower Display

Prompt

A1S1 VAL*

A1S2 VAL*

A2S1 VAL*

Upper Display

Range of Setting

or Selection

Value in engineering units

Value in engineering units

Value in engineering units

Parameter

Definition

ALARM 1 SETPOINT 1 VALUE— This is the value at which you want the alarm type chosen in prompt A1S1TYPE to actuate. The value depends on what the setpoint has been configured to represent. NO setpoint is required for Communications SHED. For SP Programming the value is the segment number for which the event applies.

For Maintenance Timers, the setpoint value is HOURS.TENTHS OF HOURS. Example: setpoint value

4.2means 4 hours 12 minutes. (Be aware that the value of the Timer itself is displayed in HOURS.MINUTES. Example: 4.2 means 4 hours 2 minutes.)

For Maintenance Counters for output relays 1 and 2, the setpoint value is in thousands of counts (1 = 1000 counts).

This prompt does not appear for “Alarm on Manual” type alarm. For example: A1S1TYPE = MANUAL.

ALARM 1 SETPOINT 2 VALUE— This is the value at which you want the alarm type chosen in prompt A1S2TYPE to actuate.

The details are the same as A1S1 VAL.

ALARM 2 SETPOINT 1 VALUE— This is the value at which you want the alarm type chosen in prompt A2S1TYPE to actuate.

The details are the same as A1S1 VAL.

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