Smartgen BAC06S User manual

BAC06S
SOLAR BATTERY CHARGER
USER MANUAL
SMARTGEN (ZHENGZHOU) TECHNOLOGY CO.,LTD.
ZHENGZHOU SMARTGEN TECHNOLOGY CO.,LTD

BAC06S SOLAR BATTERY CHARGER USER MANUAL
BAC06S Solar Battery Charger Version 1.0 2017-07-20 Page 5 of 19
3. SPECIFICATION
Category
Items
Parameter
System
Voltage
12V
24V
Input
Max. Input Voltage
DC48V
Max. Input Power
160W
320W
Efficiency
≤96%
≤97%
MPPT Efficiency
>99%
Output
Max. Output Voltage
16V
32V
Factory Default Float
Voltage
13.8V
27.6V
Rated Charging Current
10A
Max. Load Current
10A
Working
Condition
Working Temp.
(-30~+55)°C
Storage Temp.
(-40~+85)°C
Working Humidity
20%RH~93%RH (no condensation)
Overall
Structure
Weight
0.57kg
Dimension
143mm×96mm×55mm (L×W×H)

BAC06S SOLAR BATTERY CHARGER USER MANUAL
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4. CHARGING PRINCIPLE
Three-stage Method
Charging is performed according to the battery charging characteristics using three-stage method.
a) The first stage is named as „constant current‟: a): Trickle Charge: when the battery terminal
voltage is relatively low, then the charging current is low likewise which can prevent the battery
temperature is too high. b): Quick Charge: When the battery terminal voltage is relatively high,
the charging current will rise to rated value. Large current charging operation leads
to an increase in the electricity quantity of the battery.
b) The second stage is named as Absorption Charge: after the first stage, the battery voltage is rise
to absorption charge value rapidly, and the charger voltage will keep constant. The battery
terminal voltage will stabilize in the absorption charge value with the decreasing of charging
current.
c) The third stage is named as Float Charge: After the above two stage, the charge is basically
completed and the Float Charge is started automatically. In this stage, the charger voltage
reduces to float voltage and the charger current reduces to float value. After that charging current
will only neutralize the battery self-discharge. Even long-term charging cannot harm the battery,
as charger can keep the battery fully charged and so guarantee long lifetime of the battery.

BAC06S SOLAR BATTERY CHARGER USER MANUAL
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Two-stage Method
Charging is performed according to the battery charging characteristics using two-stage method.
a) The first stage is named as „constant current‟: a): Trickle Charge: when the battery terminal
voltage is relatively low, then the charging current is low likewise which can prevent the battery
temperature is too high. b): Quick Charge: When the battery terminal voltage is relatively high,
the charging current will rise to rated value. Large current charging operation leads
to an increase in the electricity quantity of the battery.
b) The second stage is named as Float Charge: The charging current will decrease with the rising
of battery electricity. As soon as charging current value falls below 0.3A, the battery is basically
fully charged. After that charging current will only neutralize the battery self-discharge. Even
long-term charging cannot harm the battery, as charger can keep the battery fully charged and
so guarantee long lifetime of the battery.

BAC06S SOLAR BATTERY CHARGER USER MANUAL
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5. PARAMETER CONFIGURATION
Basic Parameter Settings,
No.
Items
Default
Adjustable Range
Description
24V
12V
24V
12V
1
Battery Type
2
(0~2)
0:12V ；1:24V ；
2:Self-adaption
2
Charging Stage
2
(2~3)
2: Two Stage;
3: Three Stage
3
Max. Rated
Current
10.0A
Nonadjustable
Maximum charging
current
4
Rated Current
100%
(0~100)%
Maximum charging
current percentage
5
Absorption
Charge Voltage
28.2V
14.1V
(20.0~32.0)V
(10.0~16.0)V
The charging voltage
of “Constant Voltage”
6
Absorption
Charge Time
1
(0~1)
0: Disable; 1: Enable
7
Absorption
Charge Time
Setting
1.0h
(0.1~100)h
The charging time of
“Constant Voltage”
8
Absorption
Charge Complete
Current
1
(0~1)
0: Disable; 1: Enable
9
Complete
Current Setting
0.5A
(0.20~3.00)A
The transition current
from “Absorption
Charge” transfer to
“Float Charge”.
10
Float Charge
Voltage
27.6V
13.8V
(20.0~32.0)V
(10.0~16.0)V
The voltage of “Float
Charge”
11
AUTO BOOST
Voltage
25.6V
12.8V
(20.0~32.0)V
(10.0~16.0)V
When the charger is in
“Float Mode”, it enters
into “Quick Charge” if
the battery voltage
has fallen below the
set value.
12
Trickle Charge
1
(0~1)
0: Disable; 1: Enable
13
Trickle Charge
Voltage
22.0V
11.0V
(20.0~32.0)V
(10.0~16.0)V
The voltage of “Trickle
Charge”
14
Trickle Charge
Current
50%
(0~100)%
Maximum charging
current percentage
15
Battery Under
Voltage Warn
1
(0~1)
0: Disable; 1: Enable
16
Under Voltage
Set Value
23.0V
11.5V
(16.0~32.0)V
(8.0~16.0)V
“Under voltage” alarm
will be initiated if the

BAC06S SOLAR BATTERY CHARGER USER MANUAL
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No.
Items
Default
Adjustable Range
Description
24V
12V
24V
12V
battery voltage falls
below the set value.
17
Under Voltage
Delay
120s
(0~3600)s
“Under voltage” alarm
will be initiated if the
battery voltage falls
below the set value
and the delay timer
has expired.
18
Under Voltage
Return Value
25.0V
12.5V
(16.0~32.0)V
(8.0~16.0)V
The transition voltage
from “under voltage”
transfer to “normal
voltage”.
19
Under Voltage
Return Delay
10s
(0~3600)s
“Under voltage” alarm
will be removed if the
battery voltage
exceeds the return
value and the delay
timer has expired.
20
Communication
Address
10
1~254
RS485
communication
address
21
Baud Rate
0
(0~2)
0：9600bps；
1：19200bps；
2：38400bps；
one stop-bit, no parity
bit

BAC06S SOLAR BATTERY CHARGER USER MANUAL
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7. TERMINAL DEFINITION
BAC06S Mask
Terminal
Function
Description
P+
Solar Power +
Connect to solar cell panel output
P-
Solar Power-
B+
Battery +
Connect with the battery to be charged
B-
Battery -
L+
Load +
Supply power to load
L-
Load -
A
RS485 +
RS485 communication port
B
RS485 -
OUT
Output Port
Normally closed, internal normally closed port connect with B-;
It is output when charger cannot charge the battery after 60s
delay expired (charge failure output); if battery under volt warning
enabled, it is output only when detect battery under volt warning
alarms.
Solar Indicator
Indicator lights up if solar cell panel correctly connect and solar
voltage exceeds 6V. If load over current, battery indicator and
solar indicator flash per 0.5s.
Battery Indicator
Indicator lights up if battery correctly connect to the battery and
battery voltage exceeds 3V;
If fail to charge, battery indicator flashes per 0.5s;
If load over current, battery indicator and solar indicator flash per
0.5s.
NOTE 1: During gen-set is running, high charging current will cause voltage drop in charging line, so
recommend separately connecting to battery terminal to avoid disturbance on sampling precision.
NOTE 2: Power connection order: connecting battery firstly and then solar panel; Power disconnection
order: disconnecting solar panel firstly, and then battery. Please follow the correct sequence to
connect/disconnect power and inhibit to operate energized connection cable in case of damaging the battery.

BAC06S SOLAR BATTERY CHARGER USER MANUAL
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8. APPLICATION
APPLICATION INSTRUCTION:
Solar Choose 18V or 36V solar panel, please reference solar type as below.
Battery Choose 12V or 24V battery (24V battery cannot be charged while using 18V
solar panel).
Load Used for controlling lighting lamps to provide lighting in the dark, and also
available for other functional load.
Display Connecting monitoring device to portA and portB of RS485 to display the
charging status data.
Mains Charger Mains charger can be backup power supply for the battery, if battery volt is too
low caused by the solar cells fault, heavy load, and long-term un-sufficient energy. It is avoiding
the battery to over discharge. Internal of output port is normally closed point of relay, and another
end of normally closed point is connecting with B-, which connect when low battery volt occurs.

BAC06S SOLAR BATTERY CHARGER USER MANUAL
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10. CASE DIMENSIONS
Unit: mm
BAC06S Mounting Dimensions