sh030051g.pdf - 第258页
11 - 53 11. OPTIONS AND AUXILI ARY EQUIPMENT (b) Examp le of select ing the wire sizes When connecting multiple servo a mplifiers, always use junction terminals for wiring the servo amplifier terminals P, N. Also, connec…
11 - 52
11. OPTIONS AND AUXILIARY EQUIPMENT
(4) Selection example of wires used for wiring
POINT
Selection condition of wire size is as follows.
Wire type: 600V Polyvinyl chloride insulated wire (IV wire)
Construction condition: One wire is constructed in the air
(a) Wire sizes
1) Across P-P(
), N-N( )
The following table indicates the connection wire sizes of the DC power supply (P, N terminals)
between the FR-CV and servo amplifier.
Total of servo amplifier capacities [kW] Wires[mm
2
]
1 or less 2
2 3.5
5 5.5
7 8
11 14
15 22
22 50
The following table indicates the connection wire sizes of the DC power supply (P(
), N( )
terminals) between the FR-CV-H and servo amplifier.
Total of servo amplifier capacities [kW] Wires[mm
2
]
1 or less 2
2 3.5
5 5.5
7 8
11 8
15 22
22 22
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.
Power regeneration common converter Grounding wire size [mm
2
]
FR-CV-7.5K to FR-CV-15K 14
FR-CV-22K FR-CV-30K 22
FR-CV-37K FR-CV-55K 38
FR-CV-H22K FR-CV-H30K 8
FR-CV-H37K FR-CV-H55K 22
11 - 53
11. 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
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 regenerative resistor (3.5kW or
less: P-D, 5k/7kW: P-C).
2) 400V class
R2/L
1
S2/L2
T2/L
3
R/L
11
S/L
21
T/MC1
P/L+
N/L-
P
N
22mm
2
P
N
P
N
P
N
14mm
2
5.5mm
2
2mm
2
14mm
2
5.5mm
2
2mm
2
2mm
2
FR-CV-55K
Servo amplifier (7kW)
Servo amplifier (3.5kW)
Servo amplifier (2kW)
(Note)
Overall wiring length 5m or less
First unit:
22mm
2
assuming that the total of servo amplifier
capacities is 27.5kW since 15kW + 7kW + 3.5kW
+ 2.0kW = 27.5kW.
Junction terminals
Wire as short as possible.
Second unit:
14mm
2
assuming that the total of servo amplifier
capacities is 15kW since 7kW + 3.5kW + 2.0kW =
12.5kW.
Third unit:
5.5mm
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.
Servo amplifier (15kW)
(Note)
(Note)
Note. These servo amplifiers are development forecasted.
11 - 54
11. OPTIONS AND AUXILIARY EQUIPMENT
(5) Other precautions
(a) Always use the FR-CVL-(H) as the power factor improving reactor. Do not use the FR-BAL or FR-BEL.
(b) The inputs/outputs (main circuits) of the FR-CV-(H) and servo amplifiers include high-frequency
components and may provide electromagnetic wave interference to communication equipment (such as
AM radios) used near them. In this case, interference can be reduced by installing the radio noise filter
(FR-BIF-(H)) or line noise filter (FR-BSF01, FR-BLF).
(c) The overall wiring length for connection of the DC power supply between the FR-CV-(H) and servo
amplifiers should be 5m or less, and the wiring must be twisted.