MITSUBISHI ELECTRIC MR-E- A/AG - Manual (Page 219)

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14. SERVO MOTOR
(4) Do not use the servo motor with its cable soaked in oil or water. (Figure on the right)
Cover
<Incorrect> Capillary phenomenon
Oil/water pool
Servo
motor
(5) When the servo motor is to be installed with the shaft end at top, provide measures so that it is not
exposed to oil and water entering from the machine side, gear box, etc.
Gear
Lubricating oil
Servo motor
(6) 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.
(7) In the environment where the servo motor is exposed to oil mist, oil, water and/or like, the servo motor
of the standard specifications may not be usable. Contact us.
(8) In the case of the servo motor with oil seal, the oil seal may sound during operation. It poses no
problems in function.
14.4.6 Cable
The power supply and encoder cables routed from the servo motor should be fixed to the servo motor to
keep them unmovable. Otherwise, cable breaks may occur. In addition, do not modify the connectors,
terminals and others at the ends of the cables.