11
Wiring shall be checked whether correct or not. Peripheral wiring shall fulfill the following requirements.
(Do not use a buzzer of control circuit to check wiring)
(A) Wiring for control circuit Power supply must be isolated or far from other high voltage
wirings or high current power lines, thus electromagnetic interference can be avoided. See
diagrams below:
Individual power supply bridge for inverter
Good effect may not be received if general
use noise filters are applied
If inverter power supply circuit is used
commonly with other machines,
inverter-specialized noise filter or isolating
transformer shall be added.
Interference during transmission can be prohibited by adding an inverter-specialized noise filter at
main circuit output side. For preventing electromagnetic radiation, a metal tube shall be installed,
and distance from signal wiring of other control machines shall be 30cm at least.
杂讯滤波器
Noise filter
信号线
Signal wire
控制机器
Control device
30cm
以上
30cm above
Power supply
Power supply
Power supply
Noise
filter
Isolated transformer
Machine
Machine
Power supply
Power supply
Noise
filter in
general
use
Noise
filter in
general
use
Machine
Machine
power supply
Iron box
electromagnetic contactor
inverter
electromagnetic contactor
electromagnetic contactor
inverter
electromagnetic contactor
electromagnetic contactor
inverter
inverter
inverter
electromagnetic contactor
electromagnetic contactor
electromagnetic contactor
Power supply
Power supply
Isolated transformer
inverter
