Learning Protection Features
No Motor Trip
If an operation command is run when the motor is disconnected from the inverter output
terminal, a ‘no motor trip’ occurs and a protective operation is performed by the system.
Operation on no motor
trip
No motor trip current level
No Motor Trip Setting Details
Pr.32 No Motor
Level, Pr.33 No
Motor Time
If the output current value [based on the rated current (bA.13)] is lower
than the value set at Pr.32 (No Motor Level), and if this continues for the
time set at Pr.33 (No Motor Time), a ‘no motor trip’ occurs.
If bA.07 (V/F Pattern) is set to 1 (Square), set Pr.32 (No Motor Level) to a value lower than the
factory default. Otherwise, ‘no motor trip’ due to a lack of output current will result when the ‘no
motor trip’ operation is set.
Low voltage trip 2
If you set the Pr-82(LV2 Selection) code to Yes (1), the trip notification is displayed when a
low voltage trip occurs. In this case, even if the voltage of the DC Link condenser is higher
than the trip level, the LV2 trip will not be retrieved. To retrieve the trip, reset the inverter. The
trip history will not be saved.