Step 1: choose the installation site
Do not install the controller at a place that is subject to direct sunlight, high temperature or
water intrusion, and make sure the ambient environment is well ventilated.
Step 2: fit screws in
According to the installation dimensions of the product, use a marker pen to mark the mounting
points, then drill 4 mounting holes at the 4 marked points, and fit screws in.
Step 3: fix the controller
Aim the controller's fixing holes at the screws fit in Step 2 and mount the controller on.
Step 4: wire
First remove the two screws on the controller, and then begin wiring operation. In order to
guarantee installation safety, we recommend the wiring order as indicated by the numbers in the
following diagram (Fig. 2.3); however, you can choose not to follow this order and no damage will
be incurred to the controller.
Fig. 2.2 Wiring sequence
1
2
3
4
5
6
7
8
9
Te
m
p
e
ra
tu
re
Fig. 2.3 Wiring sequence
7
Connecting to external temperature sampling interface and connecting battery voltage
compensation cable
Connecting communication cable
Connecting power cable
Warning:
risk of electric shock! We strongly recommend that fuses or breakers be connected at
the photovoltaic array side, load side and battery side so as to avoid electric shock during wiring
operation or faulty operations, and make sure the fuses and breakers are in open state before
wiring.
Warning:
danger of high voltage! Photovoltaic arrays may produce a very high open-circuit
voltage. Open the breaker or fuse before wiring, and be very careful during the wiring process.
Warning:
risk of explosion! Once the battery's positive and negative terminals or leads that
connect to the two terminals get short-circuited, a fire or explosion will occur. Always be careful in
operation.
First connect the battery, then the solar panel, and finally the load. When wiring, follow the order
of first "+" and then "-".
Power on
After connecting all power wires solidly and reliably, check again whether wiring is correct and if
the positive and negative poles are reversely connected. After confirming that no faults exist, first
close the fuse or breaker of the battery, then see whether the LED indicators light up and the LCD
screen displays information. If the LCD screen fails to display information, open the fuse or breaker
immediately and recheck if all connections are correctly done.
If the battery functions normally, connect the solar panel. If sunlight is intense enough, the
controller's charging indicator will light up or flash and begin to charge the battery.
After successfully connecting the battery and photovoltaic array, finally close the fuse or breaker
of the load, and then you can manually test whether the load can be normally turned on and off. For
details, refer to information about load working modes and operations.
Warning:
when the controller is in normal charging state, disconnecting the battery will have
some negative effect on the DC loads, and in extreme cases, the loads may get damaged.
Note that the battery's fuse or breaker shall be installed as close to the controller as possible, and
it's recommended that the installation distance be not more than 150mm.
Note:
1) If no temperature sensor is connected to the controller, the battery temperature value will
stay at a default of 25 °C.
2) If an inverter is deployed in the system, directly connect the inverter to the battery, and
do not connect it to the controller's load terminals.
3. Product Operation and Display
3.1 LED Indicators
①
②
③
④
①---
②---
③---
④---
Charging mode
Battery status
Load status
Abnormality indication
PV array indicator
BAT indicator
LOAD indicator
ERROR indicator
8
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