Mitsubishi Electric MELSERVO-J3 Series Instruction Manual page 470

14. OPTIONS AND AUXILIARY EQUIPMENT
(b) Example of selecting the wire sizes
When connecting multiple servo amplifiers, always use junction terminals for wiring the servo amplifier
terminals P, N. Also, connect the servo amplifiers in the order of larger to smaller capacities.
1) 200V class
FR-CV-55K
50mm
P/L
R2/L
1
N/L
S2/L
2
T2/L
3
R/L
11
S/L
21
T/MC1
Overall wiring length 5m or less
Note. When using the servo amplifier of 7kW or less, make sure to disconnect the wiring of built-in regeneration resistor (3.5kW or
less: P-D, 5k/7kW: P-C).
Wire as short as possible.
Servo amplifier (15kW)
22mm
2 2
P
N
22mm
2
Servo amplifier (7kW)
8mm
2
P
N
8mm
2
Servo amplifier (3.5kW)
3.5mm
2
P
N
2mm
2
Servo amplifier (2kW)
2mm
2
P
N
Junction terminals
First unit:
(Note)
50mm assuming that the total of servo amplifier
2
capacities is 27.5kW since 15kW + 7kW + 3.5kW
+ 2.0kW = 27.5kW.
Second unit:
(Note)
22mm assuming that the total of servo amplifier
2
capacities is 15kW since 7kW + 3.5kW + 2.0kW =
12.5kW.
Third unit:
(Note)
8mm assuming that the total of servo amplifier
2
capacities is 7kW since 3.5kW + 2.0kW = 5.5kW.
Fourth unit:
(Note)
2mm assuming that the total of servo amplifier
2
capacities is 2kW since 2.0kW = 2.0kW.
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