Chapter 3 Mechanical and Electrical Installation
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3.3.2 Description of Peripheral Electrical Devices
Electrical Device Mounting Location Function Description
Air switch Power input side
It is used to cut off the controller’s power supply
and provide short circuit protection.
AC input reactor Controller input side
•
Improve the power factor of the input side.
•
Eliminate the higher harmonics of the input side
effectively,
•
Protect the rectier bridge effectively.
•
Eliminate the input current unbalance caused by
inter-phase unbalance.
AC output
reactor
Between the controller
output side and the motor,
close to the controller
If the controller is more than 100 m far away from
the motor, install the AC output reactor.