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Figure 6-10 Auxiliary power switch and dry contact connection
(1) No. 1 and 2 points of the terminal
①
can be connected to the AC 220V as the working power
supply of the inverter. Using auxiliary power switch: switch the auxiliary power to “OUTSIDE” if
need the external working power. If the working power is taken from the AC generated by the
inverter, switch the auxiliary power to “INSIDE”;
(2) The No. 1 and 2 points of the terminal
②
can be the input dry contact to control the inverter.
(3) The No. 1 and 2 points of the terminal
③
can be used as the output dry contact to give alarms
to the fault of the inverter.
Inverter external power supply and internal power supply through the switch selection: ON on the
left refers to the internal power supply, the right side of the ON refers to the external power supply,
OFF refers to power.
Figure 6-11 Auxiliary power switch
ON on the left refers to the internal power supply, the right side of the ON refers to the external
power supply, OFF refers to power
NOTE:
Normally, the connection of the auxiliary power supply has been completed before
delivery.
6.9 Communication connection
(1) RS485 communication connection
Communication board is located in the middle of the front of the inverter, as shown in Figure 6-12,
the length of which should not exceed 1000 meters.
