Honeywell UDC 3300 Alarm Setpoints, Introduction Procedure for displaying the alarm setpoints

5.11 Alarm Setpoints

Introduction

Procedure for displaying the alarm setpoints

An alarm consists of a relay contact and an operator interface indication. The alarm relay is de-energized if setpoint 1 or setpoint 2 is exceeded. The alarm relay is energized when the monitored value goes into the allowed region by more than the hysteresis.

The relay contacts can be wired for normally open (NO) energized or normally closed (NC) de-energized at the rear terminals. See Table 2-8 in the Section 2 – Installation for alarm relay contact information.

There are four alarm setpoints, two for each alarm. The type and state (High or Low) is selected during configuration. See Section 3 – Configuration for details.

Table 5-20 lists the procedure for displaying and changing the alarm setpoints.

Table 5-20 Procedure for Displaying or Changing the Alarm Setpoints

Step

1

2

3

Operation

Access the Alarm Set Up group

Access the

Alarm Setpoint

Values

Return to normal operation

Press

SET UP

FUNCTION

LOOP 1/2

or

LOWER DISPLAY

Action

until you see:

Upper Display

SET UP

Lower Display

ALARMS

to successively display the alarm setpoints and their values. Their order of appearance is shown below.

Upper Display

The alarm setpoint value

Lower Display

A1S1 VAL = (Alarm 1, Setpoint 1 value) A1S2 VAL = (Alarm 1, Setpoint 2 value) A2S1 VAL = (Alarm 2, Setpoint 1 value) A2S2 VAL = (Alarm 2, Setpoint 2 value)

to change any alarm setpoint value you select in the upper display.

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