How to choose Delta's servo motor

Create Date: 2024-8-30 12:03:23|Source: Delta/Delta

When selecting a Delta servo motor, in principle, the selection should be based on the load conditions. There are two types of loads on the motor shaft, namely damping torque and inertial load. Both loads should be calculated correctly and their values should meet the following criteria:

　　1) When the machine tool is running at no load, the torque loaded on the shaft of the Delta servo motor should be within the continuous rated torque range of the motor, that is, the continuous working area of the torque speed characteristic curve.

2) The maximum load torque, load cycle and overload time are within the allowable range of the provided characteristic curve.

3) The torque during the acceleration/deceleration of the motor should be within the acceleration and deceleration zone (or intermittent working area).

4) For loads that require frequent, braking and periodic changes, it is necessary to check the rms value of torque over a cycle. should be less than the continuous rated torque of the motor.

5) The magnitude of the loading inertia on the axis of Delta's servo motor will affect the sensitivity of the motor and the accuracy of the entire servo system. In general, when the load is less than the rotor inertia of the motor, the above effect is not significant. However, when the load inertia reaches or even exceeds 5 times the rotor inertia, the sensitivity and response time are greatly affected. Servo amplifiers don't even work within normal adjustment ranges. Therefore, this inertia should be avoided.

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