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13. OPTIONS AN
D 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
R2/L
1
S2/L
2
T2/L3
R/L
11
S/L21
T/MC1
P/L
N/L
P
N
50mm
2
Overall wiring length 5m or less
First unit:
50mm
2
assuming that the total of servo amplifier
capacities is 27.5kW since 15kW + 7kW + 3.5kW
+ 2.0kW = 27.5kW.
P
N
P
N
P
N
22mm
2
8mm
2
2mm
2
22mm
2
8mm
2
3.5mm
2
2mm
2
Junction terminals
Wire as short as possible.
Second unit:
22mm
2
assuming that the total of servo amplifier
capacities is 15kW since 7kW + 3.5kW + 2.0kW =
12.5kW.
Third unit:
8mm
2
assuming that the total of servo amplifier
capacities is 7kW since 3.5kW + 2.0kW = 5.5kW.
Fourth unit:
2mm
2
assuming that the total of servo amplifier
capacities is 2kW since 2.0kW = 2.0kW.
FR-CV-55K Servo amplifier (15kW)
Servo amplifier (7kW)
Servo amplifier (3.5kW)
Servo amplifier (2kW)
(Note)
(Note)
(Note)
(Note)
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).
2) 400V class
P
N
R2/L
1
S2/L
2
T2/L3
R/L
11
S/L21
T/MC1
P/L+
N/L-
P
N
22mm
2
P
N
P
N
22mm
2
8mm
2
3.5mm
2
22mm
2
8mm
2
5.5mm
2
3.5mm
2
FR-CV-H55K
Servo amplifier (7kW)
Servo amplifier (3.5kW)
Servo amplifier (2kW)
Overall wiring length 5m or less
First unit:
22mm
2
assuming that the total of servo amplifier
capacities is 30kW since 15kW + 7kW + 3.5kW
+ 2.0kW = 27.5kW.
Junction terminals
Wire as short as possible.
Second unit:
22mm
2
assuming that the total of servo amplifier
capacities is 15kW since 7kW + 3.5kW + 2.0kW =
12.5kW.
Third unit:
8mm
2
assuming that the total of servo amplifier
capacities is 7kW since 3.5kW + 2.0kW = 5.5kW.
Fourth unit:
3.5mm
2
assuming that the total of servo amplifier
capacities is 2kW since 2.0kW = 2.0kW.
Servo amplifier (15kW)