Mitsubishi Electric MELSERVO-J4 Instruction Manual page 182

9. OPTIONS AND PERIPHERAL EQUIPMENT
(4) Selection example of wires used for wiring
(a) Wire size
1) Between P and P4, and between N and N-
The following table indicates the connection wire sizes of the DC power supply (P4, N- terminals)
between the FR-CV-H and servo amplifier.
2) Grounding
For grounding, use the wire of the size equal to or greater than that indicated in the following
table, and make it as short as possible.
(b) Example of selecting the wire sizes
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
POINT
Selection conditions of wire size is as follows.
Wire type: HIV wire (600 V grade heat-resistant polyvinyl chloride insulated
wire)
Construction condition: One wire is constructed in the air.
Total of servo amplifier capacities
[kW]
Power regenerative common
converter
FR-CV-H22K/FR-CV-H30K
FR-CV-H37K/FR-CV-H55K
Wire as short as possible.
2
22 mm 8 mm
2
8 mm
8 mm
Junction terminals
Total wire length: 5 m or less
11
15
22
Grounding wire size
2
[mm ]
8 (AWG 8)
14 (AWG 6)
2 Servo amplifier (11kW)
First unit: 22 mm
P4
N-
2 Servo amplifier (11kW)
Second unit: 8 mm
P4
N-
9 - 37
2
Wire [mm ]
8 (AWG 8)
8 (AWG 8)
14 (AWG 6)
2
assuming that total capacity
of servo amplifiers is 22 kW since
11 kW + 11 kW = 22 kW.
2 assuming that total capacity
of servo amplifiers is 11 kW since
11 kW = 11 kW.