English (GB)
27
16. Signal relay
The pump has one output for potential-free signal via
an internal relay.
You can set the signal output to Operation, Pump
running, Ready, Alarm and Warning.
The functions of the signal relay appear from the
table below:
Description
Grundfos Eye
Contact position of signal relays when activated
Operating
mode
Operation
Pump
running
Ready
Alarm
Warning
The power is
off.
Off
-
The pump
runs in
Normal mode.
Green, rotating
Normal,
Min. or
Max.
The pump
runs in
Manual mode.
Green, rotating
Manual
The pump is
in operating
mode Stop.
Green, steady
Stop
Warning, but
the pump is
running.
Yellow, rotating
Normal,
Min. or
Max.
Warning, but
the pump runs
in Manual
mode.
Yellow, rotating
Manual
Warning, but
the pump was
stopped via a
Stop
command.
Yellow, steady
Stop
Alarm, but the
pump is
running.
Red, rotating
Normal,
Min. or
Max.
Alarm, but the
pump runs in
Manual mode.
Red, rotating
Manual
The pump is
stopped due
to an alarm.
Red, flashing
Stop
The pump is
stopped due
to Low-flow
stop function.
Green, steady
Normal
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
C NO NC
C NO NC
C NO NC
NC
NO
C
NC
NO
C
C NO NC
C NO NC
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
C NO NC
NC
NO
C
NC
NO
C
C NO NC
C NO NC
C NO NC
NC
NO
C
C NO NC
C NO NC
C NO NC
NC
NO
C
NC
NO
C
C NO NC
NC
NO
C
NC
NO
C
C NO NC
NC
NO
C
C NO NC
C NO NC
C NO NC
NC
NO
C
C NO NC
NC
NO
C
C NO NC
C NO NC
NC
NO
C
C NO NC
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
C NO NC
NC
NO
C
C NO NC
NC
NO
C
C NO NC
NC
NO
C
NC
NO
C
