INVT CHV160A Series - Page 34

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contactor connecting cable) at least 20cm and parallel wiring should be avoided. It is
suggested to apply perpendicular wiring to prevent inverter malfunction caused by
external interference.
4.5.2 Control circuit and extension card terminals
Terminal Description
ON-OFF signal input, optical coupling with PW and COM.
S1 ～ S8
Input voltage range: 9~30V
Input impedance: 3.3kΩ
20
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CHV160A series special inverter for water supply
Terminal Description
External power supply. +24V terminal is connected to PW
terminal as default setting. If user need external power
PW
+24V
COM
AI1 、 AI2
supply, disconnect +24V terminal with PW terminal and connect PW terminal with
external power supply.
Provide output power supply of +24V.
Maximum output current: 150mA