Mitsubishi Electric MR-J4 Instruction Manual page 419

11. OPTIONS AND AUXILIARY EQUIPMENT
(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.
FR-CV-55K
R2/L1 P/L
S2/L2 N/L
T2/L3
R/L11
S/L21
T/MC1
Overall wiring length 5 m or less
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-.
FR-CV-H55K
P/L+
R2/L1
N/L-
S2/L2
T2/L3
R/L11
S/L21
T/MC1
Wire as short as possible.
50 mm 22 mm
2 2
22 mm
2
8 mm
2
8 mm
2
3.5 mm
2
2 mm
2
2 mm
2
Junction terminals
Wire as short as possible.
22 mm 2
8 mm 2
Junction terminals
Total wire length: 5 m or less
Servo amplifier (15 kW)
First unit:
P4
(Note)
50 mm
N-
capacities is 27.5 kW since 15 kW + 7 kW + 3.5 kW
+ 2.0 kW = 27.5 kW.
Servo amplifier (7 kW)
Second unit:
P4
(Note)
22 mm
N-
capacities is 15 kW since 7 kW + 3.5 kW + 2.0 kW =
12.5 kW.
Servo amplifier (3.5 kW)
Third unit:
P4
(Note)
8 mm
2
N-
capacities is 7 kW since 3.5 kW + 2.0 kW = 5.5 kW.
Servo amplifier (2 kW)
Fourth unit:
P4
(Note)
2 mm
2
N-
capacities is 2 kW since 2.0 kW = 2.0 kW.
8 mm 2 Servo amplifier (11kW)
P4
N-
2 Servo amplifier (11kW)
8 mm
P4
N-
11 - 48
assuming that the total of servo amplifier
2
assuming that the total of servo amplifier
2
assuming that the total of servo amplifier
assuming that the total of servo amplifier
2
First unit: 22 mm assuming that total capacity
of servo amplifiers is 22 kW since
11 kW + 11 kW = 22 kW.
2
Second unit: 8 mm assuming that total capacity
of servo amplifiers is 11 kW since
11 kW = 11 kW.