
B-65262EN/03 SPECIFICATIONS FOR THE αiS/αi SERIES 3.SELECTING A MOTOR
- 41 -
3 SELECTING A MOTOR
A servo motor should be selected based on the load on the servo
motor, rapid traverse rate, increment system, and other conditions.
Motors are subjected to the following types of torque: constant load
torque (including gravity and friction), acceleration torque required
for acceleration/deceleration, and, for a machine tool, cutting torque
by cutting force.
When selecting a motor, calculate these loads accurately according to
the instructions in this chapter and check that the calculated values
satisfy the conditions for selecting a serve motor described in this
chapter.
This chapter describes how to calculate the load and other conditions
using a table with a horizontal axis as an example.