External Start/Stop - Grundfos MAGNA Installation And Operating Instructions Manual

5. External start/stop

The relay module incorporates a digital input for an external contact.
The pump can be started and stopped via this input.
When started, the pump will operate with the setpoint set on the control
panel or with the R100.
If the external contact is used, the connection between
terminals 7 and 8 must be replaced by the external
Note
connection.
Functional diagram: Start/stop input
Contact position
10
6. Correctly mounted
module.
Function
Stop of pump
Start of pump