11.4 Option
11-62
[7] Zero-phase reactors for reducing radio noise (ACL)
An ACL is used to reduce radio frequency noise emitted by the inverter.
An ACL suppresses the outflow of high frequency harmonics caused by switching operation for the power
supply lines inside the inverter. Pass the power supply lines together through the ACL.
If wiring length between the inverter and motor is less than 20 m, it is recommended to insert an ACL to
the power supply lines; if it is 20 m or more, insert it to the power output lines of the inverter.
Wire size is determined depending upon the ACL size (I.D.) and installation requirements
.
Figure 11.4-22
Figure 11.4-23 Dimensions of Zero-phase Reactor for Reducing Radio Noise (ACL) and Connection Example
Table 11.4-27 Zero-phase Reactors for Reducing Radio Noise (ACL)
Installation requirements
Zero-phase reactors
for reducing radio noise
Qty.
Number of
turns
Wire size (mm
2
)
1 4
2.0, 3.5, 5.5
ACL-40B
2 2
8,14
1 4
8,14
2 2
22, 38, 60, 5.5×2, 8×2,14×2, 22×2
ACL-74B
4 1
100,150, 200, 250, 325, 38×2,
60×2,100×2,150×2
F200160, F200160PB 4 1
200×2, 250×2, 325×2, 325×3
The selected wires are for use with 3-phase input/output lines (3 wires).
Note: Use the insulated wire of 75°C, 600 V, HIV-insulated.
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