CHF100A series high performance universal inverter
.23.
4.5.3 Jumper on control board
Jumper
Description
J2, J4
It is prohibited to be connected together, otherwise it will cause
inverter malfunction.
J16
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.
J15
、
J17
(
4.0kW
以上)
J14
、
J15
(
1.5~2.2kW
)
Switch between (0~10V) voltage output and (0~20mA) current
output.
V connect to GND means voltage output;
I connect to GND means current output.
SW1
Switch of terminal resistor for RS485 communication. ON:
Connect to terminal resistor. OFF: Disconnect to terminal resistor.
(Valid for inverter of 4.0KW or above)
J17
RS485 communication jumper
J17, J18
Switch of terminal resistor for RS485 communication. Jumper
enable: Connect terminal resistor.
Jumper disable: Disconnect terminal resistor. (Valid for inverter of
1.5~2.2kW).
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.
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