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If the Motor Does Not Put Out Torque or If Acceleration is Slow
Use the following information if the motor does not output torque or if acceleration is too slow.
The stall prevention level during acceleration is too low.
If the value set for L3-02 (Stall Prevention Acceleration Level) is too low, the acceleration time will be too long. Check to be
sure that the set value is suitable.
The stall prevention level during running is too low.
If the value set for L3-06 (Stall Prevention Level during Running) is too low, the motor speed and torque will be limited.
Check to be sure that the set value is suitable.
If the Motor Operates at a Higher Speed Than the Speed Command
Use the following information if the motor operates at a higher speed than the Speed Command.
A signal is being input to the Speed Command (current) terminal A2.
If a preset frequency reference is selected, the preset reference takes priority over the normal reference.
If the PI mode of operation is enabled, the drive output frequency will change to regulate the process variable to the desired
setpoint. Then, the Drive speed may go to maximum.
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Diagnostic & Troubleshooting 6 - 17
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