Ablerex Buck 1000W User manual

Photovoltaic Charger
User’s Manual
Buck – 1000W/1500W
12/24/36/48 Vdc

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Content
IMPORTANT NOTES..............................................................................................................3
1.0 I NTRODUCTION ...........................................................................................................4
1.1 I NSTALLATION S ITE ....................................................................................................5
1.2 I NSTALLATION ............................................................................................................6
1.3 A CCESSORIES ..............................................................................................................7
1.4 LED I NDICATION E XPLANATIONS ..............................................................................8
2.0 LCD D ESCRIPTION .....................................................................................................9
2.1 O PERATION .................................................................................................................9
2.1.1Enter into Setting Mode.......................................................................................................................12
2.1.2Battery Capacity(AH) Setting..............................................................................................................13
2.1.3Battery Voltage Setting........................................................................................................................13
2.1.4 Battery Over-voltage Limit Setting.....................................................................................................14
2.1.5 Battery Under-Voltage Limit Setting..................................................................................................15
2.1.6 Pulse Charge Setting...........................................................................................................................15
2.1.7 Parallel Address Setting......................................................................................................................16
2.1.8 Total Input Power(KWH)Setting:.......................................................................................................16
2.1.9 Parameters Displayed..........................................................................................................................17
2.2 LCD D ISPLAY E XPLANATIONS .................................................................................17
2.3 E RROR C ODES ..........................................................................................................19
3.0 P RODUCT S PECIFICATIONS ........................................................................................20

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1.Keep this user’s manual and follow all instructions indicated in the
manual.
2.Don’t overload the charger.
3.Don’t split the charger apart; otherwise, your warranty is void.
4.Only authorized technician may repair or replace the interior components.
5.Make sure the ground of the load is connected properly. Otherwise, you
may get electrical shock.
6.Keep the PV charger clean and dry.
7.Make sure all the contacts with correct polarity to avoid from short
circuit.
8. Following the instruction of the user’s manual to use or configure the
charger.
Important Notes

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1.0 Introduction
BUCK-1000/1500W photovoltaic charger is to convert the energy from solar panel to
load or batteries connected. With different load or batteries connected, it can be set as 12V,
24V, 36V or 48V system. The solar charger can get max. efficiency up to 95%. The solar
cells can get the highest efficiency by means of Maximum Power Point Tracking(MPPT) and
pulse charge method.. Via LCD display, it is easy to get input voltage/current, output
voltage, battery temperature(with battery temperature compensation feature)…etc.. Through
RS232 communication port, our monitoring software may provide output voltage setting or
record all relative parameters from the PV charger.
Figure 1: The front view of the PV charger
Standard features of the PV Charger:
Maximum Power Point Tracking(MPPT) maximizes energy harvest from the PV array.
Auto-selection Four-stage (Bulk/Pulse/Float1/Float2) charge mode to reduce 1~3 times
charge time and maximize system performance.
Easy-to-read LCD and four functional key pads for configuration and system monitoring.
Maximum efficiency up to 95%.
Input over-voltage and under-voltage protection, output over-current protection and
back-feed protection with warning messages appeared on LCD and LED.
Over-temperature protection and power derating when output power and ambient
temperature are high.

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Battery temperature sensor automatically provides temperature compensated battery
charging.
Provide communication software to monitor the status of the charger.
Smart fan speed Control according to the load connected.
This intelligent charger may set output voltage automatically or user may select output
voltage 12/ 24 /36/ 48 V via LCD panel。
 Allow multi devices in parallel.
1.1 Installation Site
Figure 2: Installation Environment
Notice!
1.Inspect the charger upon receipt. This product is designed to be with robust packaging.
However, accidents and damage may occur during transportation. Notify the forwarder
or dealer if there is damage occurred. The packaging is recyclable; save it for reuse or
dispose of it properly.
2.It is designed to be installed and commissioned in a sheltered controlled environment as
follows:
--Operating temperature -20°C ~60°C.
--Always avoid from contact with direct sunlight.
--Install it away from objects that give off excessive heat and areas that are excessively
wet. .
--Install it indoors as it is not designed for installation outdoors.

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Figure 3: Installation Site
1.2 Installation
Please remove the wiring compartment cover for installation as illustrated below. After
installation, please fasten the cover back to its original position.
Figure 4: Disassemble Wiring Compartment Cover
Figure 5: Cabling
Contact Description
PV+ To the positive(+) of solar cell
PV- To negative(-) of solar cell
Bat+ To the positive(+) of Bat. input
Bat- To the negative(-) of Bat. input

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Load+ To the positive(+) of Load
Load- To the negative(-) of Load
BTS Battery Temperature Sensor
Ground
■ Recommended Installation Sequence:
Connect Load →Battery →Solar Cell
■If there is no load connected
Connect Battery →Solar Cell
■Make sure the BTS wire is installed and fixed to the contact (CN11).
■Make sure the Battery and load are removed before entering into setting mode.
Mode Description Remarks
Load Mode Output without connecting with
battery. Output voltage via LCD panel is required to be set..
Charging Mode
Output connecting battery or
connecting both battery and load.
Output voltage via LCD panel
can be fixed or auto set.
Caution!
1. Make sure all cables are connected properly without short-circuiting.
2. There is 100A fuse inside the (BAT+).
3. Disconnect the Battery if there is no solar cell and load connected or if the solar cell is
sheltered for a long while.
4. Do not overload the charger! Please refer to specification sheet to use the charger properly.
5. Make sure the voltage and capacity of the Battery is set correctly. Re battery setting,
please refer to 2.1 Operation
6. Make sure the bat. temperature compensation wire is installed and fixed where the battery
is installed, not in the internal of the battery. Make sure the adhesive use is easy to
conduct heat, so as to make sure the accuracy of the temperature compensation of the unit.
1.3 Accessories
1.Battery Compensation sire(BST) × 1
2.Connecting terminal to the solar panel(phi4-male) × 1

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3.Connecting terminal to the solar panel(phi4-female) × 1
1.4 LED Indication Explanations
Figure 6: Bottom View
LED Description
Fault
(Red) System Fault, Protection Circuit is activated.
PV Low
(Amber) Under-voltage/Over-voltage of Solar Cell
Normal
(Green) System Operation in Normal
RS232 RS232 Communication Interface

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2.0 LCD Description
Item
Symbol
Description
1
System Fault, Charger goes to “Protection Mode”
Error code shown on the LCD
2 Under-voltage/Over-voltage of Solar Cell
3 Charging Mode –Illuminate / Load Mode - Flash
4
Function Key
(Left: push slightly; Return: push heavily)
5 Scroll Key-Up
6 Scroll Key-Down
7
Function Key
(Right: push slightly; Enter: push heavily)
2.1 Operation
When the charger starts up normally, all the LED indicators will light up and the LCD
display will show as drawing A.

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A
B
C
D
E
Approx. 3 seconds later, the LCD display will show as drawing B and the charger is under
initialization.
When the charger is in normal operation, it shows the current input voltage of the solar
panel as shown in drawing C, then the green LED lights up to indicate that the charger is
connected with batteries and also charges to the batteries. On the contrary, it shows that
there are no batteries connected when the green LED is blinking and the output voltage is
fixed.
If there is a defect occurred during operation, the LCD display shows Er04 as shown
below. For more detailed error code, please refer to Table 1 Error Code.
If there is over-voltage or under-voltage occurred during operation, the LCD display will
show Alarm code as indicated below and the Amber LED lights up.
Press key to indicate the parallel address of the charger as shown as drawing F and
press key once again or wait for 10 seconds to go back to Main Menu.