12. Maintenance and Inspection

Daily inspection

Daily

Are there dust or foreign objects around the motor? Is there any abnormal vibration, noise or smell? Are the cables undamaged? Is there any loose connection or misalignment with other devices? Is the main circuit voltage normal?

Periodical inspection

Annually

Is there any looseness at tightened points? Are terminals intact and not damaged?

There is no response in the software window or cannot operate a motor

Is the cabling between devices connected properly?

See Chapter 4 Wiring and Connection and make sure all cables are connected properly. Confirm the state of the connector pin contacts and the harnesses (no disconnection).

Are the communication settings set correctly in the communication software?

Once the CM3+ baud rate is changed, the baud rate of the communication software must be changed too. Read 7.1 Forming Daisy Chain Network and create a new communication connection from the beginning.

Does the set value correspond to the rewritten baud rate?

Set the communication software to the same baud rate as CM3+.

Are multiple communication programs running?

Other software using COM ports may cause interference — close that software.

Noise and vibrations

Are the machine and the motor resonating?

Adjust the gain or speed of CM3+.

Damage to bearing?

Check noise and vibration with no load applied. If present, replacement or repair is required.

Overheat

Is the operating temperature within specification?

Do not use outside the specification.

Check the mounting part on the machine

Make sure there are no loose or slippery places in the machine.

Is the load inertia within the allowable range?

Make sure it is within the specification.

Is the bearing undamaged?

Turn the power off and rotate the shaft. If there is noise, replacement or repair is required.

Does not rotate

Is the power ON?

Turn the power ON.

Check cable connection

Connect the cables properly. Confirm the state of the connector pin contacts and the harnesses.

Is the load within the allowable range?

Use within the allowable load.

Is the CM3+ Servo off?

Servo on the CM3+.

Is the motor in an alarm state?

Remove the cause of the alarm and reset the alarm.

Has the STO been activated?

When STO is activated, the CM3+ power circuit is cut off. Apply voltage to the STO input.

Inaccurate origin

Is the origin search speed too high?

Decrease the origin search speed at the point close to the origin.