For servo motors, the allowable (applicable load) moment of inertia is determined as the limit at which the motor can operate stably. If the motor is operated with a moment of inertia exceeding this value,
- Hunting occurs when stopping
- Rotation irregularities become larger
- The driver's protection function is activated.
The above phenomenon may occur. First of all, it is necessary to select a value that is equal to or less than the applicable load moment of inertia.
Even if it is within the allowable value, the same phenomenon may occur depending on the mechanical rigidity of the combination and the degree of gain tuning.