Eng
lish (US)
18
5.5 Signal relays
The motor has two outputs for potential-free signals via two
internal relays.
The signal outputs can be set to "
Operation
", "
Pump running
",
"
Ready
", "
Alarm
" and "
Warning
".
The functions of the two signal relays appear from the table
below:
Description
Grundfos Eye
Contact position for 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
