English (GB)
56
20. Signal relays
The pump has two outputs for potential-free signals via two
internal relays.
You can set the signal outputs 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
Digital
input
Alarm
Warning
The power is off.
Off
-
The pump is running in
"Normal" mode.
Green, rotating
"Normal",
"Min." or
"Max."
The pump is running 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 is
running in "Manual" mode.
Yellow, rotating
"Manual"
Warning, but the pump
was stopped via "Stop"
command.
Yellow, steady
"Stop"
Alarm, but the pump is
running.
Red, rotating
"Normal",
"Min." or
"Max."
Alarm, but the pump is
running in "Manual" mode.
Red, rotating
"Manual"
The pump has stopped
due to an alarm.
Red, flashing
"Stop"
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
