Yaskawa AC Servo Drive Rotary Servomotor Safety Precautions - Manual (Page 29)

1 Product Handling Precautions
E-27
‹ Play of the Output Shaft for Servomotors with Holding
Brakes
The following condition does not indicate a failure in the Servomotor.
There is backlash in the holding brake even when power is not being sup-
plied to the holding brake. This results in a certain amount of rotational
play in the motor output shaft.
Amount of play: 1.5
° max. (initial value)
‹ Braking Noise from Servomotors with Holding Brakes
The following condition does not indicate a failure in the Servomotor.
The brake’s rotating disk will cause some scratching noise during acceler-
ation, stopping, and low-speed operation.