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Installation instructions
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Warning
1.The wiring order must be in the prescribed order, first connect the
battery, and then connect the solar panel. when you disconnect the controller
you must first disconnect the solar panel. then disconnect the battery, and the
two groups of solar panels are in no order.
2. Batteries and solar panels must be connected to fuses or circuit breakers.
Recommended fuse specification: Battery:120A, Solar panels per channel: 60A
3. In the process of operation and installation, the phenomenon of short circuit
of storage battery or solar panel is strictly prohibited.
Battery connection
Battery type: controller can only use lead-acid batteries, lithium battery can not use
Battery voltage: it can automatically adapt to 12V , 24V , 48V battery, if you need to
use 36V battery, you must set the battery voltage to 36V on the display screen.
Batteries in series and in parallel: if batteries need to be connected in series and
parallel, ensure the capacity of each battery the voltage is basically the same.
Mixed use of batteries of different specifications is not recommended, which can easily
lead to uneven charging of individual batteries, aging and damage ahead of time.
Wiring method: it is recommended to first connect the fuse or circuit breaker to the connection line,
then fix the controller end, and finally connect to the battery to ensure that the battery is not allowed
to short circuit in the whole process, otherwise it may cause serious safety accidents.
Connection cable: the connection cable between the controller and the battery is as short as possible,
which can effectively reduce the cable loss and reduce the voltage difference.
Recommended cable specifications:
Solar panel connection
1. The controller has two solar panel input ports, each with a maximum charging current of 30A
It can be connected arbitrarily, and the controller can work normally if only any one of the solar panels is connected.
2. For details of the maximum open-circuit voltage and power of the solar panel, see the parameter table below.
3. The battery must be connected before connecting the solar panel.
4. The size of solar panel cable is more than that of 4mm.
Load connection
1.The controller does not have a load output port directly, but it has a dry contact port,
user can control the external relay or the controller signal as the external load
through the dry node.
2.The output voltage of the dry contact port is the voltage of the battery and the output
current is 2A.
3. Verify that the working voltage of the externally connected relay or load control signal
is consistent with the output voltage of the dry contact port.
3. There are five modes of dry contact signal output: manual mode, pure light control mode,
light control on + time control off. Single-period real-time time control, dual-period
real-time time control
System expansion
1. Multiple controllers are connected in parallel to share a battery pack. But each controller must be connected to a
separate solar panel matrix.
2.In the expansion system, it is recommended that the specifications of each controller and the solar panel matrix be the same,
which is conducive to charge equalization.
Pv1
- +
+
FUSE
+
length < 4m: 8mm
P V 2
Pv1
- +
-
FUSE
-
2
, length > 4m: 10mm
2
P V 2
- +
- +
-
+
+
-
PV1
+
- +
- + -
fuse
+
-
Load
Relay
Pv1
- +
- +
-
+
+
-
PV2
fuse
+
-
P V 2
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