CHV180 series frequency inverter special for elevator Wiring
.20.
Terminal Description
J2, J4, J5, J13
and J14
They are prohibited to be changed, otherwise it will cause
inverter malfunction.
J18
Switch between (0~10V) voltage input and (0~20mA) current
input.
V connect to GND means voltage input;
I connect to GND means current input.
J19
Switch between (0~10V) voltage output and (0~20mA) current
output.
V connect to OUT means voltage output;
I connect to OUT means current output.
4.6 Installation guidline to EMC compliance
4.6.1 General knowledge of EMC
EMC is the abbreviation of electromagnetic compatibility, which means the device or
system has the ability to work normally in the electromagnetic environment and will not
generate any electromagnetic interference to other equipments.
EMC includes two subjects: electromagnetic interference and electromagnetic
anti-jamming.
According to the transmission mode, Electromagnetic interference can be divided into
two categories: conducted interference and radiated interference.
Conducted interference is the interference transmitted by conductor. Therefore, any
conductors (such as wire, transmission line, inductor, capacitor and so on) are the
transmission channels of the interference.
Radiated interference is the interference transmitted in electromagnetic wave, and the
energy is inverse proportional to the square of distance.
Three necessary conditions or essentials of electromagnetic interference are:
interference source, transmission channel and sensitive receiver. For customers, the
solution of EMC problem is mainly in transmission channel because of the device
attribute of disturbance source and receiver can not be changed.
4.6.2 EMC features of inverter
Like other electric or electronic devices, inverter is not only an electromagnetic
interference source but also an electromagnetic receiver. The operating principle of
inverter determines that it can produce certain electromagnetic interference noise. And
the same time inverter should be designed with certain anti-jamming ability to ensure the
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