Grundfos Magna - Signal Relay Functions and Fault Indication; Signal Relay Fault Conditions

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6. Signal relay
The function of the signal relay can be set with the R100.
Possible functions:
•Fault
• Ready
• Operation.
6.1 Fault indication
The signal relay is activated in case of
• Pump blocked
• Internal fault
• Undervoltage.
See section 6.4 Functional diagram.
When the fault disappears, the signal relay is deactivated. The fault
cause is stored in the pump alarm log. The last five faults can be called
up with the R100.
Note
In case of a fault, the red indicator light on the control
panel is on.
See installation and operating instructions for GRUNDFOS
MAGNA 32-100.