Grundfos Control MPC-Serie Installationsanleitung Seite 28

8.6 Alarm (3)
This menu gives an overview of alarms and warnings.
You can reset alarms.
8.6.1 Alarm status (3)
Fig. 31 Alarm status
Description
A fault in the system or one of the components monitored can
cause an alarm or a warning. Besides the fault signal via the
alarm and warning signal relay and the red indicator light on CU
352, an alarm can also cause a change of operating mode, for
instance from "Normal" to "Stop". A warning only causes a fault
indication.
The table shows the possible causes of fault together with an
alarm code, and whether they result in an alarm or a warning. It
also shows to what operating mode the system will change in
case of alarm, and whether restarting of the system and resetting
of the alarm is manual or automatic.
The table also shows that the reaction to some of the fault causes
mentioned can be set in the menu "Settings". See sections
8.7.26 Soft pressure build-up (4.3.3)
functions (4.4) to 8.7.61 Pressure relief
Water shortage Warning
Water shortage Alarm
Pressure high Alarm
Warning
Pressure low
Alarm
Pressure relief Warning
Alarm, all pumps Alarm
Warning
External fault
Alarm
Dissimilar sensor
Warning
signals
Fault, primary
Alarm
sensor
Fault, sensor Warning
Communication
Warning
fault
Phase failure Warning
Undervoltage,
Warning
pump
Overvoltage,
Warning
pump
28
and 8.7.51 Monitoring
(4.4.8).
- Man/auto X 206
Stop Man/auto X 214
Stop Man/auto X 210
- Man/auto
X 211
Stop Man/auto
- Man/auto X 219
Stop Auto - 203
- Man/auto
X 3
Stop Man/auto
- Auto - 204
Stop Auto - 89
- Auto - 88
- Auto - 10
- Auto - 2
7, 40,
- Auto -
42, 73
- Auto - 32
Overload, pump Warning
Motor
temperature too Warning
high
Other fault, pump Warning
Internal fault, CU
Warning
352
Internal fault, IO
Alarm
351
VFD not ready Warning
Fault, ethernet Warning
Warning/
Limit 1 exceeded
alarm
Warning/
Limit 2 exceeded
alarm
Pressure buildup Warning/
fault alarm
Pumps outside
Warning
duty range
Fault, pilot pump Warning
Multisensor fault Alarm
Multisensor value
Warning
exceeds limits
Signal fault,
Warning
secondary sensor
Warning
Non-return valve
fault
Alarm
48, 50,
- Auto -
51, 54
64, 65,
- Auto -
67, 70
- Auto - 76, 83
83,
- Auto -
157
72, 83,
Stop Auto -
157
- Auto - 213
231,
- Auto -
232
- Man/auto X 190
- Man/auto X 191
- Man/auto X 215
- Man/auto X 208
- Auto - 216
- Auto - 143
- Auto X 87
- Auto X 93
- Man/auto X 209
- Man/auto X 209