Device
Installation
Location
Function Description
filter of the AC drive the AC drive.
z Decrease the conduction interference flowing from the power
end to the AC drive and improve the anti-interference
capacity of the AC drive.
DC reactor
AC drive of 7.5 kW
or above configured
with DC reactor as
standard
z Improve the power factor on the input side.
z Improve the efficiency and thermal stability of the AC drive.
z Eliminate the impact of input side high order harmonics on
the AC drive and reduce the external conduction and
radiation interference.
AC output
reactor
Between the output
side of the AC drive
and the motor,
close to the AC
drive
The output side of the AC drive generally has much high order
harmonics. When the motor is far from the AC drive, there are
much distributed capacitance in the circuit and certain harmonics
may cause resonance in the circuit, bringing about the following
two impacts:
z Degrade the motor insulation performance and damage the
motor for the long run.
z Generate large leakage current and cause frequent AC drive
protection.
If the distance between the AC drive and the motor is greater than
50 m, install the AC output reactor.
3.2.3 Wiring
The following figures show the three-phase wiring of the CS500.
Figure 3-5 Three-phase wiring for the CS500 of 30 kW or below
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