Control Loop Connection Mode - HNC Electric HV610 Series User Manual

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:
Potentiometer
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

Wiring diagram of analog input terminal
Pass through or in the same
direction 2 - 3 turn in the
Schematic diagram of processing and wiring for analog input terminals
Signal
External controller
Leakage connection mode
same direction
Ferrite magnetic ring
Frequency inverter control panel
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HV610
HV610