Mr-J2S-Series Power Supply Wire Size - Mitsubishi Electric MELSERVO-J2S Series Transition Handbook

Part 5: Review on Replacement of MR-J2S-30 kW or Higher Capacity Models with MR-J4-DU_

5.2.1 MR-J2S-series power supply wire size

The following diagram shows the wires used for wiring. Use the wires or equivalent given in this section.
4) Regenerative brake option lead
Regenerative brake option
Power factor
improving
DC reactor
Power
supply
1) Main circuit power
supply lead
In this case, the power supply wire used is a 600 V plastic one and the wiring distance is 30 m or less.
When the wiring distance exceeds 30 m, select another wire size in consideration of the voltage drop.
The alphabet letters (a, b, c) on the table correspond to crimp terminals used when wiring a servo amplifier.
The method of wiring a servo motor differs depending on the type and capacity of the servo motor.
To comply with the UL/cUL (CSA) standard, use UL-approved copper wires rated at 60 ˚C or higher for
wiring.
Converter
Drive unit
unit
MR-J2S-30KA/B
MR-HP30KA
MR-J2S-37KA/B
MR-J2S-30KA4/B4
MR-J2S-37KA4/B4
MR-HP55KA4
MR-J2S-45KA4/B4
MR-J2S-55KA4/B4
Converter unit
C
P
3)
P
1
P
2
L
1
L
2
L
3
L
11
L
21
2) Control power supply lead
Wire size selection example 1 (IV wire)
Recommended wire
1) 2)
L /L /L / L
1 2 3 11
50 (AWG1/0)
60 (AWG2/0)
22 (AWG4)
2 (AWG14)
30 (AWG2)
38 (AWG2)
50 (AWG1/0)
Servo amplifier
U
V
3)
W
L
11
Power
L
supply
21
Wire [mm
2
3) U/V/W
/L P1/P2/
21
60 (AWG2/0)
80 (AWG3/0)
30 (AWG2)
5.5 (AWG10) 1.25 (AWG16) 1.25 (AWG16)
38 (AWG2)
50 (AWG1/0)
60 (AWG2/0)
5 - 34
3) Motor power supply lead
Servo motor
U
V
Motor
W
Encoder cable
Encoder
5) Thermal relay
OHS1
OHS2
Cooling fan
6) Fan lead
BU
BV
BW
]
4) 5)
P/C OHS1/OHS2
Thermal
relay
6)
BU/BV/BW