Fuji Electric FRENIC-Ace series - Motor Stalls During Acceleration

6.5 When Codes Other Than Alarm Codes and Light Alarm Indication (
l-al ) are Displayed
6-31
TROUBLESHOOTING
Chap 6
[ 10 ] Motor stalls during acceleration
Possible Causes Check and Measures
(1) The acceleration time was too
short.
Check the data of acceleration time (F07, E10, E12, E14, H57, H58).
 Extend the acceleration time.
(2) Moment of inertia of load is
large.
Measure the inverter output current.
 Reduce the moment of inertia of the load.
 Increase the inverter capacity.
(3) Voltage drop of wiring is large. Check the terminal voltage of motor.
 Increase the diameter or shorten the distance of wirings between
the inverter and motor.
(4) Load torque of load is large. Measure the inverter output current.
 Reduce the load torque of load.
 Increase the inverter capacity.
(5) Torque generated by the motor
was insufficient.
Check whether the inverter can make the motor rotate when torque
boost related functions (F09, H51) are increased.
 Change the setting of F09, F37, H51. Increase F09, H51.