Mitsubishi MR-J4-100A

11. OPTIONS AND AUXILIARY EQUIPMENT
11 - 47
(b) Example of selecting the wire sizes
1) 200 V class
When connecting multiple servo amplifiers, always use junction terminals for wiring the servo
amplifier terminals P4, N-. Also, connect the servo amplifiers in the order of larger to smaller
capacities.
R2/L1
S2/L2
T2/L3
R/L11
S/L21
T/MC1
P/L
N/L
P4
N-
50 mm
2
Overall wiring length 5 m or less
First unit:
50 mm
2
assuming that the total of servo amplifier
capacities is 27.5 kW since 15 kW + 7 kW + 3.5 kW
+ 2.0 kW = 27.5 kW.
P4
N-
P4
N-
P4
N-
22 mm
2
8 mm
2
2 mm
2
22 mm
2
8 mm
2
3.5 mm
2
2 mm
2
Junction terminals
Wire as short as possible.
Second unit:
22 mm
2
assuming that the total of servo amplifier
capacities is 15 kW since 7 kW + 3.5 kW + 2.0 kW =
12.5 kW.
Third unit:
8 mm
2
assuming that the total of servo amplifier
capacities is 7 kW since 3.5 kW + 2.0 kW = 5.5 kW.
Fourth unit:
2 mm
2
assuming that the total of servo amplifier
capacities is 2 kW since 2.0 kW = 2.0 kW.
FR-CV-55K Servo amplifier (15 kW)
Servo amplifier (7 kW)
Servo amplifier (3.5 kW)
Servo amplifier (2 kW)
(Note)
(Note)
(Note)
(Note)
Note. When using the servo amplifier of 7 kW or less, make sure to disconnect the wiring of built-in regenerative resistor (5 kW or
less: P+ and D, 7 kW: P+ and C).
2) 400 V class
When connecting two servo amplifiers of 11 kW, always use junction terminals for wiring the
servo amplifier terminals P4, N-.
R2/L1
S2/L2
T2/L3
R/L11
S/L21
T/MC1
P/L+
N/L-
P4
N-
Servo amplifier (11kW)
Servo amplifier (11kW)
22 mm
2
Total wire length: 5 m or less
First unit: 22 mm
2
assuming that total capacity
of servo amplifiers is 22 kW since
11 kW + 11 kW = 22 kW.
8 mm
2
8 mm
2
8 mm
2
Wire as short as possible.
Second unit: 8 mm
2
assuming that total capacity
of servo amplifiers is 11 kW since
11 kW = 11 kW.
FR-CV-H55K
P4
N-
Junction terminals