Open circuit motor field - check connection and
measure field resistance
Faulty operation of field controller
Where an ac supply feeds the onboard field
regulator, check connections FL1 & FL2 for line-toline
voltage (rather than line-to-neutral) - L1 into FL1,
L2 into FL2. Note that the 3-phase supply must be
present for mains synchronisation purposes.
For loads where no field supply is required, e.g. a
permanent magnet motor, set the FIELD ENABLE
parameter to disable to suspend this alarm.
Alarm time delay : 0.75 seconds