HNC Electric HV480 Series, Руководство пользователя

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2.2.5 Control circuit wiring mode
a) Analog input terminal because weak analog voltage signals are particularly susceptible to external
interference, shielded cables are generally required, and the wiring distance should be as short as possible, not
exceeding 20m. As shown in the figure, when some analog signals are seriously disturbed, filter capacitors or ferrite
cores need to be added to the analog signal source side:
Schematic diagram of processing and wiring for analog input terminals
b) Digital input terminal: Shielded cables are generally required, and the wiring distance should be as short as
possible, not exceeding 20m. When active driving mode is selected, necessary filtering measures should be taken
for crosstalk of power supply. It is recommended to use contact control square.

Leakage wiring
Leakage connection mode
Ferrite magnetic ring
Potentiometer
Wiring diagram of analog input terminal
Pass through or in the same
direction 2 - 3 turn in the
same direction
Signal
External controller Frequency inverter control panel
HV610
HV610