Precautions For Installing Servo Motor Accessories - Delta ASDA-A3 Series User Manual

ASDA-A3

2.4.4 Precautions for installing servo motor accessories

Wipe off the rustproof coating or oil on the motor shaft.

 If you use a servo motor with a keyway, install the attached key or a key matching the
specified dimensions on the motor shaft.
 When installing the key or the motor shaft accessories (such as a belt pulley or gear) to
the servo motor, do not apply excessive impact force to the keyway. Instead, use a
screwdriver and a screw.
Installation safety precautions for coupling applications
 It is suggested to use flexible couplings specifically designed for servo motors, especially
double spring couplings, which provide some buffer tolerance during eccentric motion and
deflection of the motor. Select couplings of appropriate size for the operating conditions.
Improper use or connection may cause damage to the motor.
Use dial gauge or other methods to ensure the centering precision is within the

specifications. If you cannot use the dial gauge or other methods, slide the coupling along
both axes and adjust it until it does not get stuck.
As shown in the previous figure, the distance is measured at four different positions on the
circumference for the centering precision. The difference between the maximum and minimum
measurements should be 0.03 mm or less. Even within this range, you can make adjustments to
increase the centering precision.
Note: when you are doing the measurements, rotate the coupling and the motor shaft together.
(A)
(A) Screw and gasket (B) Belt pulley (C) Servo motor shaft
(C)
(B)
0.03 mm
0.03 mm
Installation
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