Inspection; Life - Mitsubishi Electric EZMOTION MR-E Super MR-E-10A-QW003 Instruction Manual

14. SERVO MOTOR

14.3.6 Inspection

WARNING
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It is recommended to make the following checks periodically.
(a) Check the servo motor bearings, brake section, etc. for unusual noise.
(b) Check the cables and the like for scratches and cracks. Especially when the junction cable is movable,
perform periodic inspection according to operating conditions.
(c) Check the servo motor shaft and coupling for misalignment.
(d) Check the power supply connector and encoder connector tightening screws for looseness.

14.3.7 Life

The following parts must be changed periodically as listed below. If any part is found faulty, it must be
changed immediately even when it has not yet reached the end of its life, which depends on the operating
method and environmental conditions. For parts replacement, please contact your sales representative.
Part name
Bearings
Encoder
When the servo motor is run at rated speed under rated load, change the bearings in 20,000 to 30,000
hours as a guideline. This differs on the operating conditions. The bearings must also be changed if
unusual noise or vibration is found during inspection.
Before starting maintenance and/or inspection, turn off the power and wait for 15
minutes or more until the charge lamp turns off. Otherwise, an electric shock may
occur. In addition, always confirm from the front of the servo amplifier whether the
charge lamp is off or not.
Any person who is involved in inspection should be fully competent to do the work.
Otherwise, you may get an electric shock. For repair and parts replacement,
contact your safes representative.
POINT
Do not disassemble and/or repair the equipment on customer side.
Guideline of life
20,000 to 30,000 hours
20,000 to 30,000 hours
14 - 10
Remarks
The Guideline of Life field gives the reference time. If any fault is
found before this time is reached, the part must be changed.