Mitsubishi Electric MR-J4, Instruction Manual

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18. MR-J4-03A6 SERVO AMPLIFIER
18 - 81
18.8.3 Selection example of wires
POINT
To comply with the IEC/EN/UL/CSA standard, use the wires shown in appendix
4 for wiring. 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
The voltage drops because of the cable conductor resistance. Especially for
main circuit/control circuit power supply wiring, wire to secure the required input
voltage at servo amplifier input section. It is recommended that the cable length
be as short as possible.
The following diagram shows the wires used for wiring. Use the wires or equivalent given in this section.
24
0
PM
1) Main/control circuit power supply lead
24 V DC power supply
Servo amplifier
U
V
W
E
2) Servo motor power lead
+
-
+
-
48 V DC power supply
CNP1
M
The following shows the wire size selection example.
Table 18.5 Wire size selection example 1 (HIV wire)
Servo amplifier
Wire [mm
2
]
1) 24/0/PM/
2) U/V/W/E
(Note)
MR-J4-03A6 AWG 16 AWG 19
Note. The wire size shows applicable size of the servo amplifier connector and terminal
block. For wires connecting to the servo motor, refer to "Servo Motor Instruction
Manual (Vol. 3)".
18.8.4 Circuit protector
Power supply specification Circuit protector (Note)
Control circuit power supply (24 V DC) CP30-BA 1P 1-M 1A
Main circuit power supply (48 V DC) CP30-BA 1P 1-M 3A
Main circuit power supply (24 V DC) CP30-BA 1P 1-M 5A
Note. For operation characteristics, use an intermediate speed type.