Mitsubishi Electric MELSERVO-JN Series, Instruction Manual

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12. SERVO MOTOR
(3) If the servo motor is exposed to oil such as coolant, the sealant, packing, cable and others may be affected
depending on the oil type.
(4) In the environment where the servo motor is exposed to oil mist, oil, water and/or grease, a standard
specification servo motor may not be usable. Contact your local sales office for more details.
12.2.5 Cable
The power supply and encoder cables routed from the servo motor should be fixed to the servo motor to keep
them unmovable. Otherwise, the cables may break. In addition, do not modify the connectors on the cable
ends.
12.2.6 Inspection
WARNING
Before wiring, be sure to turn off the power, wait for 15 minutes or longer, and then
make sure that the charge lamp is off to prevent an electric shock. In addition,
always confirm if the charge lamp is off or not from the front of the servo amplifier.
Due to a risk of an electric shock, only qualified personnel should attempt
inspection. For repair and parts replacement, contact your local sales office.
POINT
Do not disassemble and/or repair the equipment.
It is recommended to make the following checks periodically.
(a) Check the bearings, the 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, brake connector, and encoder connector tightening screws for
looseness.