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Configuration
Alarms Set Up Group
72
DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
Release M
April 2017
3.14 Alarms Set Up Group
Introduction
This data deals with the Alarms function that is available with your recorder.
There are six alarms available. Each alarm has two setpoints.
You can configure each of these two setpoints to alarm on various recorder parameters. There are two
alarm output selections, high or low.
You can also configure the two setpoints to alarm on the same event and to alarm both high and low, if
desired. An adjustable hysteresis of 0.0% to 100.0% is configurable for each alarm.
Priority of functions that operate relays
During alarm conditions an alarm will deenergize its associated relay unless a higher priority function has
been configured for that relay. See Table 3-11. If you want the alarm to control the relay, do not configure
a higher priority function.
Table 3-11 Priority of functions that operate relays
Relay
Relay is controlled by (in order of priority)
1
1.
Timer function
2.
Alarm 1
2
Alarm 2 only
3
1.
Controller 1 output algorithms Relay Simplex,
Position Proportional, Relay Duplex,
Current/Relay Duplex
2.
Alarm 3
4
1.
Controller 1 output algorithms Position
Proportional, Relay Duplex, Current/Relay
Duplex
2.
Alarm 4
5
1.
Controller 2 output algorithms Relay Simplex,
Position Proportional, Relay Duplex,
Current/Relay Duplex
2.
Alarm 5
6
1.
Controller 2 output algorithms Position
Proportional, Relay Duplex, Current/Relay
Duplex
2.
Alarm 6