6.10 Signal relays
The motor 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:
Grundfos Eye is off
The power is off.
Operation Pump running Ready Alarm Warning Operating mode
-
Grundfos Eye is rotating green
The pump runs in Normal mode in open or closed loop.
Operation Pump running Ready Alarm Warning Operating mode
Normal
Min.
or
Max.
Grundfos Eye is rotating green
The pump runs in Manual mode.
Operation
Pump running Ready Alarm Warning Operating mode
Manual
Grundfos Eye is permanently green
The pump is ready for operation but is not running.
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