Mitsubishi Electric MELSERVO-J4 series Instruction Manual page 510

Servo amplifier mr-j4-_b(-rj) mr-j4-_b4(-rj) mr-j4-_b1(-rj)
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APPENDIX
App. 4.6 Maintenance and service
WARNING
CAUTION
App. 4.6.1 Inspection items
It is recommended that the following points periodically be checked.
(1) Check for loose terminal block screws. Retighten any loose screws.
(a) 200 V class/100 V class
Servo amplifier
MR-J4-10_(1)/MR-J4-20_(1)/
MR-J4-40_(1)/MR-J4-60_/
MR-J4-70_/MR-J4-100_/
MR-J4-200_/MR-J4-350_
MR-J4-500_
MR-J4-700_
MR-J4-11K_/MR-J4-15K_
MR-J4-22K_
MR-J4W_-_B
(b) 400 V class
Servo amplifier
MR-J4-60_4/MR-J4-100_4/
MR-J4-200_4/MR-J4-350_4
MR-J4-500_4
MR-J4-700_4
MR-J4-11K_4/MR-J4-15K_4
MR-J4-22K_4
(2) Check servo motor bearings, brake section, etc. for unusual noise.
(3) Check the cables and the like for scratches or cracks. Perform periodic inspection according to
operating conditions.
(4) Check that the connectors are securely connected to the servo motor.
(5) Check that the wires are not coming out from the connector.
(6) Check for dust accumulation on the servo amplifier.
(7) Check for unusual noise generated from the servo amplifier.
(8) Check the servo motor shaft and coupling for connection.
To avoid an electric shock, only qualified personnel should attempt inspections.
For repair and parts replacement, contact your local sales office.
Do not perform insulation resistance test on the servo amplifier. Otherwise, it may
cause a malfunction.
Do not disassemble and/or repair the equipment on customer side.
L1
L2
L3
N-
L1
L2
L3
Tightening torque [N•m]
P3
P4
P+
C
1.2
1.2
3.0
6.0
Tightening torque [N•m]
N-
P3
P4
P+
1.2
1.2
3.0
6.0
App. - 13
D
L11
L21
U
V
0.8
1.2
0.8
1.2
1.2
3.0
1.2
6.0
C
L11
L21
U
V
0.8
0.8
1.2
1.2
W
PE
1.2
1.2
W
PE
1.2
1.2
1.2
3.0
6.0

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