Selection Example Of Wires; Mr-J3 Series, Power Supply Wire Size - Mitsubishi Electric MELSERVO-J3 Series Handbook
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Also See for MELSERVO-J3 Series:
- Instruction manual (802 pages) ,
- Manual (668 pages) ,
- Transition handbook (708 pages)
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Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
(3) When fabricating a cable
Prepare MR-J2CN1-A connector set, the recommended wires, and fabricate the cable according to the
wiring diagram in (2) in this section.
Model
MR-J3CDL05M
Note 1. The following shows the detail of d.
Conductor
2. Standard OD. Maximum OD is about 10% greater.
7.2 Selection example of wires
7.2.1 MR-J3 series, power supply wire size
For the power supply wire, use a 600 V grade heat-resistant polyvinyl chloride insulated wire (HIV wire).
The following diagram shows the wires used for wiring. Use the wires or equivalent given in this section.
Power factor
improving
DC reactor
4) Regenerative option lead
Regenerative option
Power supply
Core
Length
Number
size
of cores
[m]
[mm
2
]
20
0.5
0.08
(10
pairs)
d
Insulator
POINT
To comply with the IEC/EN/UL/CSA standard, use the wires refer to "MR-J3-
_A_/MR-J3-_B_ Servo amplifier instruction manual" and "MR-CV_/MR-
CR55K_/MR-J4-DU_(-RJ) instruction manual".To comply with other standards,
use a wire that is complied with each standard.
Selection conditions of wire size are as follows.
Construction condition: Single wire set in midair
Wire length: 30 m or less (J3 series)
50 m or less (J4 series)
Converter unit
3)
P
1
P
2
C
1) Main circuit power
supply lead
L
1
L
2
L
3
L
11
L
21
2) Control power supply lead
Characteristics of one core
Insulator
Conductor
Structure
OD d [mm]
resistance
[Wires/mm]
[Ω/km]
(Note 1)
7/0.127
222 or less
Drive unit
U
1)
W
L
11
L
21
5 - 51
Cable
OD
Wire model
[mm]
(Note 2)
UL 20276 AWG#28
0.38
6.1
10pair (cream)
3) Motor power supply lead
V
Encoder cable
6) Thermal relay
Power supply
5) Cooling fan
lead
Servo motor
U
V
Motor
W
Encoder
OHS1
Thermal
relay
OHS2
Cooling fan
BU
BV
BW
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