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This section describes how to set the alarm type and the alarm setpoint properly, and some points you have to
know when combining different kinds of alarms.
Alarm type
PXR3 has eight types of alarms. Select the right type for your application from the table below, and set the right
code for your selection to the parameters
(alarm type 1) and
(alarm type 2).
Be sure to power-cycle PXR3 after changing the alarm type.
Table 4: Alarm Types
Alarm
type
Set value
Action diagram
Code of
PA1 and 2
0
No
alarm
1
2
3
Upper
limit
Lower
limit
Upper
limit
Lower
limit
Upper
limit
Lower
limit
Upper
limit
Lower
limit
Absolute
value
Absolute
value
Absolute
value
Absolute
value
Absolute
value
Absolute
value
Absolute
value
Absolute
value
Without
Without
With
With
Without
Without
With
With
Hold function Relay operation
at alarm
4
5
6
7
8
Relay
energization
Relay
energization
Relay
energization
Relay
energization
Relay
de-energization
Relay
de-energization
Relay
de-energization
Relay
de-energization
Note:
Be sure to power-cycle PXR3 after you change the alarm type.
If your PXR3 has two alarms but you want
to use only one alarm, set the other alarm
to “0”.
How to read activation diagram
area: Range in which the AL1 or the AL2 indicator lights.
area: Range in which the alarm relay is energized
point: Alarm set value
The horizontal represents PV.
Alarm setpoint
The alarm 1 and the alarm 2 start to function at the trigger values you set.
Alarm setting
Set the alarm 1 setpoint with
, and the alarm 2 setpoint with
, both of which belong to the level 2
parameters. Setting is available within the input range, which is between
and
.
Note that in the level 1 parameter, you can only check the setpoints, i.e. you cannot edit the setpoints.
3
Alarm
