
Chapter 3 Environment description and installation
3-11
Make external connections according to the following instruction. Check connections after
wiring to make sure all connections are correct. (Do not use the control circuit buzzer to
check connections)
(A) Main circuit must be separated from other high voltage or high current power line to avoid
noise interference. Refer to following figures:
z
The inverter uses dedicated power line
Ɣ
A general noise filter may not provide
rightful results
z
Please added a noise filter or separation
transformer when the inverter shares the
power line with other machines.
.
z
A noise filter in the output of the main circuit can suppress conductive noise. To prevent radiative
noise, the wires should be put in a metal pipe and distance from signal lines of other control
machines for more than 30 cm.
Control machine
Metal
box
Metal pipe
Signal line
More than 30 cm
Filte
Filter
Power
Power
7300EV
7300EV
7300EV
Power
Power
專 用
雜 訊
濾波器
7300EV
7300EV
Power
Power
General
noise
filter
Machine
Machine
Machine
Genera
l noise
filter
Machine
Special
noise
filter
Separation transformer
Содержание 7300EV
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