Mitsubishi Electric MELSERVO-JN Series Instruction Manual page 308

12. SERVO MOTOR
12.2 Installation
WARNING
Be sure to ground the servo motor to prevent an electric shock.
Do not stack the product packages exceeding the maximum number specified on
the package.
Install the equipment to incombustibles. Installing it directly or close to
combustibles may cause a fire.
Install the equipment on a weight-bearing place in accordance with this Instruction
Manual.
Do not get on or place heavy objects on the equipment as it may cause injury.
Use the equipment within the specified environmental condition range. Refer to
sections 12.5.2 (1) and 12.6.2 (1).
Do not drop or shock the servo motor as it is precision equipment.
Do not install or operate a servo motor which is damaged or has any part missing.
Do not hold the cable, the shaft or the encoder when carrying the servo motor as it
may cause malfunction or injury.
Couple the servo motor to a machine securely. Insecure coupling may cause the
servo motor to come off, resulting in injury.
Be sure to measure the motor vibration level with the servo motor mounted to the
machine when checking the vibration level. A great vibration may cause the early
damage of a bearing, encoder, brake, and reduction gear. The great vibration may
CAUTION
also cause the poor connector connection or bolt looseness.
For the gain adjustment at the equipment startup, check the torque waveform and
the speed waveform by using a measurement device, and then check that no
vibration occurs. If the vibration occurs due to high gain, the vibration may cause
the early damage of the servo motor.
Never hit the shaft end of the servo motor, especially when coupling the servo
motor to a machine as it may damage the encoder.
When coupling a load to the servo motor, do not use a rigid coupling as it may
break the shaft.
Balance the load to the extent possible. Failure to do so can cause vibration during
servo motor operation or damage the bearings and the encoder.
Take safety measures, e.g. provide covers, to prevent accidental access to the
rotating parts of the servo motor during operation.
Do not apply load exceeding the permissible load as it may break the shaft,
causing injury.
When the equipment has been stored for an extended period of time, consult your
local sales office.
When handling the servo motor, be careful with the edged parts such as the
corners of the servo motor.
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