The wire size is only for reference. Suppose a long-distance exists between the
PV array and the controller or between the controller and the battery. In that
case, larger wires shall be used to reduce the voltage drop and improve the
system performance.
The recommended wire for the battery that its terminals are not connected to
any additional inverter.
2.4 Dry contact instruction
Dry contact parameter
Rated Value：5A/30VDC
Maximum Value：0.5A/60VDC
1) Control the utility/generator ON/OFF via the
(Utility/Generator) dry contact
Utility/Generator start-up Voltage (V
ON
)=Under Voltage
Warning Voltage
Utility/Generator stop Voltage (V
OFF
)= Under Voltage Warning Recover Voltage
Battery Voltage (V
BAT
)
Start-up the Utility/Generator: V
BAT
＜V
ON
.
Stop the Utility/Generator: V
BAT
＞ V
OFF
.
a. Before start or stop the Utility/Generator via the (Utility/Generator) dry contact,
you shall set the switch to the ON position.
b. The V
ON
and V
OFF
can be set via the PC software. The Battery Control Voltage
Parameters refer to the chapter 3.4 Setting.
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