Eng
lish (US)
10
*
The last pump in operation might have been stopped temporarily by the low-flow stop function.
Table continued from previous page
Pos.
Displays
Description
8
Setpoint
Shows the setpoint.
External stop: Indicates that the system has been stopped externally via a digital input.
Indicates that the system has been set to "OFF".
Indicates that the system has been set from OFF to ON. "On" is only shown for 3 seconds after which
the setpoint will be shown.
Indicates that buttons on the CU 323 have been locked automatically. Unlock the buttons by pressing
(Reset) and
or
(Reset) and
for 2 seconds.
Indicates that the system is remote-controlled.
Local: Appears if attempts to change local settings are made while the system is remote-controlled.
9
Measured value
Shows the actual, measured value on the discharge side.
Appears in case of a primary sensor fault.
/ measured
value
Alternates between the actual, measured value on the discharge side and "H.L" when a maximum
discharge pressure or a level limit has been exceeded.
Pos.
Indicator
lights
Status
Description
10
Off
Normal state.
Red
Water shortage fault.
11
Off
Normal state.
Red
Primary and/or redundant sensor fault.
Maximum discharge pressure or level limit has been exceeded.
12
(pump LED)
Off
The pump has stopped due to cascade operation.
The system is in "OFF" state.
The power supply has been switched off.
Red
A pump fault has occurred.
Green
The pump is running.
Flashing green
The pump is in standby mode or has been stopped by pressing
or via remote control.
13
AUTO
Yellow
The pump is controlled by the CU 323.
14
OFF
Yellow
The pump has been stopped by pressing
or via remote control.
Pos.
Indicator
lights
Status
Description
Pos. 13:
system run
(green)
Pos. 14:
alarm
(red)
15 and 16
(system LEDs)
Off
Off
The power supply has been switched off.
On
Off
The system is in normal operation.*
Flashing
Off
The system has been set to stop.
Off
On
The system has been stopped due to an alarm.
On
On
The system is in normal operation, but there is a warning.*
Flashing
On
The system has been set to stop, and there is a warning.
E
.
St
OFF
On
0-N
RESET
RESET
bUS
LOC
Err
H
.
L
WS
PT
