Mitsubishi Electric MR-J4W2, Instruction Manual

Page: 482 / 542

18. MR-J4W2-0303B6 SERVO AMPLIFIER
18 - 53
18.8.3 Selection example of wires
POINT
Refer to section 11.1.2 for SSCNET III cable.
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.
(1) Wires for power supply wiring
The following diagram shows the wires used for wiring. Use the wires or equivalent given in this section.
Servo amplifier
24
0
PM
1) Main/control circuit power supply lead
U1
V1
W1
2) Servo motor power lead
-
+
24 V DC
power supply
+
-
48 V DC
power supply
U2
V2
W2
E1
E2
M
M
The following shows the wire size selection example.
Table 18.4 Wire size selection example (HIV wire)
Servo amplifier
Wire [mm
2
]
1) 24/0/PM/
2) U1/V1/W1/E1
U2/V2/W2/E2
(Note)
MR-J4W2-0303B6 AWG 16 AWG 19
Note. The wire size shows applicable size of the servo amplifier connector. For wires
connecting to the servo motor, refer to "Servo Motor Instruction Manual (Vol. 3)".