4.6.10 Operation panel display is not operating
Wiring or installation is improper.
Power is not input.
Command sources at the PU operation mode is not at
the operation panel.
(None of the operation mode displays (
4.6.11 Motor current is too large
Torque boost (Pr. 0, Pr. 46) setting is improper under V/F
control, so the stall prevention function is activated.
V/F pattern is improper when V/F control is performed.
(Pr. 3, Pr. 14, Pr. 19)
Stall prevention function is activated due to a heavy
Auto tuning is not performed under Advanced magnetic
flux vector control or General-purpose magnetic flux
Check first when you have some troubles
Check for the wiring and the installation.
Make sure that the connector is fitted securely across
terminal P/+ and P1.
Input the power.
Check the setting of Pr. 551 PU mode operation command
(If parameter unit(FR-PU04/FR-PU07) is connected
while Pr. 551 = "9999" (initial setting), all the operation
mode displays (
Increase/decrease Pr. 0 Torque boost setting value by
0.5% increments to the setting.
Set rated frequency of the motor to Pr. 3 Base frequency.
Use Pr. 19 Base frequency voltage to set the base voltage
(e.g. rated motor voltage).
Change Pr. 14 Load pattern selection according to the load
Reduce the load weight.
Set Pr. 22 Stall prevention operation level higher according
to the load. (Setting Pr. 22 too large may result in
frequent overcurrent trip (E.OC ).)
Check the capacities of the inverter and the motor.
Perform offline auto tuning.
) turn OFF.)