Cable; Servo Motor With Oil Seal; Inspection - Mitsubishi Electric MELSERVO HF-MP Instruction Manual

2. INSTALLATION

2.6 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.

2.7 Servo motor with oil seal

For the servo motor with oil seal, the oil seal prevents the entry of oil into the servo motor. Make sure to install
it according in this section. The functions have no problem even if the servo motor with oil seal may sound
during operation.
(1) Pressure and oil level
Install the servo motor horizontally, and set the oil level in the gear box to be lower than the oil seal lip
always. If the oil level is higher than the oil seal lip, the oil that entered into the servo motor may cause any
failure.
High pressure against the oil seal causes the abrasion and makes the life be short. Keep constant internal
pressure by equipping a ventilator to the gear box.
(2) Temperature
High temperature against the oil seal lip makes the life be short. Avoid exposing the oil seal lip to high
temperature oil since applicable temperature of the material is up to 100
oil seal lip rises within 10 to 15

2.8 Inspection

WARNING
CAUTION
It is recommended to make the following checks periodically.
Height above oil level h
(50 to 59 ) at maximum rotation.
Before starting maintenance and/or inspection, turn off the power and wait for 15
minutes or more (20 minutes or for drive unit 30kW or more) until the charge lamp
turns off. Then, confirm that the voltage between P( ) and N( ) (L
drive unit 30kW or more) is safe with a voltage tester and others. Otherwise, an
electric shock may occur. In addition, always confirm from the front of the servo
amplifier (converter unit), whether the charge lamp is off or not.
To avoid an electric shock, only qualified personnel should attempt inspections. For
repair and parts replacement, contact your safes representative.
Do not disassemble and/or repair the equipment on customer side.
Shaft
Gear
Servo motor
Lip
Oil seal
2 - 5
(212 ) and temperature of the
and L
for