English (GB)
24
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
. Besides the fault signal via
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)
8.7.54 Pressure relief (4.4.8)
.
Fault
War
n
in
g
(
)
Alar
m
(
)
Change of operating
m
ode
to
Resetti
ng
of
ala
rm
Restar
ting
Set
in menu "Settings"
Alar
m code
Water shortage
Man/
auto
X
206
Water shortage
Stop
Man/
auto
X
214
Pressure high
Stop
Man/
auto
X 210
Pressure low
Man/
auto
X
211
Stop
Man/
auto
Pressure relief
Auto
X
219
Alarm, all pumps
Stop
Auto
203
External fault
Man/
auto
X
3
Stop
Man/
auto
Dissimilar sensor
signals
Auto
204
Fault, primary sensor
Stop
Auto
89
Fault, sensor
Auto
88
Communication fault
Auto
10
Phase failure
Auto
2
Undervoltage, pump
Auto
7, 40,
42, 73
Overvoltage, pump
Auto
32
Overload, pump
Auto
48,
50,
51, 54
Motor temperature too
high
Auto
64,
65,
67, 70
Other fault, pump
Auto
76, 83
Internal fault, CU 352
Auto
83,
157
Internal fault, IO 351
Stop
Auto
72,
83,
157
VFD not ready
Auto
213
Fault, Ethernet
Auto
231,
232
Limit 1 exceeded
Man/
auto
X
190
Limit 2 exceeded
Man/
auto
X
191
Pressure build-up fault
Man/
auto
X
215
Pumps outside duty
range
Man/
auto
X
208
Fault, pilot pump
Auto
216
