Alarm; Alarm Status - Grundfos Control MPC Installation And Operating Instructions Manual

8.6 Alarm (3)

This menu gives an overview of alarms and warnings.
It is possible to reset alarms.

8.6.1 Alarm status (3)

Fig. 32 Alarm status
Description
A fault in the system or one of the components monitored can
cause an alarm or a warning
the alarm/warning signal relay and the red indicator light on the
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 menu "Settings". See sections
8.7.24 Soft pressure build-up (4.3.3)
to
functions (4.4) 8.7.54 Pressure relief
24
. Besides the fault signal via
and
8.7.44 Monitoring
(4.4.8).
Water shortage
Water shortage
Pressure high
Pressure low
Pressure relief
Alarm, all pumps
External fault
Dissimilar sensor
signals
Fault, primary sensor
Fault, sensor
Communication fault
Phase failure
Undervoltage, pump
Overvoltage, pump
Overload, pump
Motor temperature too
high
Other fault, pump
Internal fault, CU 352
Internal fault, IO 351
VFD not ready
Fault, Ethernet
Limit 1 exceeded
Limit 2 exceeded
Pressure build-up fault
Pumps outside duty
range
Fault, pilot pump
Man/
X 206
auto
Man/
Stop X 214
auto
Man/
Stop X 210
auto
Man/
auto
X 211
Man/
Stop
auto
Auto X 219
Stop Auto 203
Man/
auto
X 3
Man/
Stop
auto
Auto 204
Stop Auto 89
Auto 88
Auto 10
Auto 2
7, 40,
Auto
42, 73
Auto 32
48,
Auto 50,
51, 54
64,
Auto 65,
67, 70
Auto 76, 83
83,
Auto
157
72,
Stop Auto 83,
157
Auto 213
231,
Auto
232
Man/
X 190
auto
Man/
X 191
auto
Man/
X 215
auto
Man/
X 208
auto
Auto 216