16
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’s wiring must separate from other high voltage or high current power line to
avoid noise interference. See figures below.
z
The inverter uses dedicated power line
z
Add a noise filter or separation transformer
when the inverter shares the power line
with other machines.
z
A general noise filter may not provide
rightful results
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.
電源
V2
Power source
Power source
N2
N2
Machine
Machine
General
noise
filter
General
noise
filter
Separation transformer
General
noise
filter
N2
N2
General
noise
filter
Power source
Control machine
More than 30 cm
General
noise
filter
Machine
Machine
