Pump alarms

Depending on the status connections and the value of parameter ALM-03, different types of alarms will be generated, as shown in the next tables.

The module provides three status alarm outputs. The status alarms are delayed by the value of parameter ALM-01.

To configure pump-on, pump-off or fail-to-command alarm, set ALM-03 to:


Alarm type ALM-03

Alarm output behavior

No alarm (0)

Only status monitoring is done and no alarms are generated

Failed to command alarm (1)

The status is monitored and a fail-to-command alarm is generated after the time of the delay defined in parameter ALM-01

Separate On and Off alarms (2)

The status is monitored and differentiated on/ off alarms are generated, after the delay of the parameter ALM-01


Pump command

Status input

On/off alarms selected

Fail to command alarm selected

Pump on

off

Pump off alarm

Pump fail to command alarm

Pump off

on

Pump on alarm

Pump fail to command alarm


Alarm input

The alarm input Alarm will generate a point alarm.

Manual or automatic reset of alarms

In case of an active alarm, manual or automatic reset of alarms can be selected, depending on the setting of parameter ALM-03.


Note: When an automatic reset function was selected in the parameter list (ALM-02 = 1), the related output PmpCmd will stay on.


Common alarm output

The output CommAlarm will be in alarm whenever the pump on-/ off- or fail to command alarms or alarm inputs is in alarm.


Alarm Reset

The alarm reset happens on the positive edge of the Reset signal.
A reset will be done even if the pump enable input is still on.

We recommend to solve the alarm root cause before activating a reset signal, other wise the alarm will occur again.


Description

Default value

ALM-01: delay status alarm

0 = disable

60 sec

ALM-02: pump reset type

0 = manual reset

1 = auto reset

1

ALM-03: status alarm type

0 = no alarm

1 = fail to command alarms

2 = on/ off alarms

2