10-2Maintenance and Inspection1010.1 Maintenance and Inspection of the Motor PartSimple daily checks need to be performed on the motor part. Check the motor for excessive noise or abnormalvibration.Do not dismount the motor.If the motor operates abnormally after 20,000 hours of operation or five years since installation, depending onthe environment and conditions used, replace the motor, and the servo driver if necessary.10.2 Maintenance and Inspection of the Driver PartThere is no need for a daily maintenance and inspection of the driver part. However, it is prudent to clean thedriver unit periodically to protect it from dust or particles since they may damage insulation.10.3 Replacing the Battery for Memory BackupA lithium battery is provided inside the driver in order to store parameter data in memory. The life span of thelithium battery is normally 20,000 hours.When the battery reaches the end of its life, an alarm signal will be displayed. When this happens, replace thebattery as soon as possible.The following describes the procedure used to replace the battery:1) Back up parameters, programs, cam data and other important data stored in memory to flash ROM before replacing thebattery. (For details on memory backup, see Section 10.4.)2) Turn OFF the power.3) Remove the six screws located on the side panel of the driver. (See the figure below.)4) Replace the battery quickly (within 10 seconds).5) Check the connection and turn ON the power. If no error is displayed, the battery has been replaced correctly.Note 1: If a battery error is displayed, it is necessary to reset the system after replacing the battery. In this case,parameters and other data must be set again.Note 2: Be sure to use 3V or equivalent battery. Be careful on the front and back orientation of thebattery.
