Mean Well DBU-3200, DBU-3200-24, DBU-3200-48 Instruction Manual

DBU-3200

Instruction Manual

DBU-3200 Instruction Manual

Index

0. roduct DescriptionP

1.Notes on Operation

2.Mechanical Design and Installation Procedure

3.Derating Curve

3.1 Charging Current vs Temperature

3.2 Charging Current vs Input Voltage

4.Pin Assignment

5.LED Indication

6.Explanation of Operation Logic

7.Charge Curve

8.PMBus and CANBus Communication Interface

9.Function Description

9.1 Input Voltage Range

9.2 Power Factor Correction PFC()

9.3 Temperature Compensation

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1

1

1

2

2

2

2

3
3

4

5

13

13

13

14

10.Wiring for Battery

11.Suggested Battery Capacity

12 Series and Parallel Connection.

13.Troubleshotting

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Dec. 2018 Version 0

2018-12-18

14

14

15
15

0.Product Description

DBU-3200 is MEAN WELL's new generation intelligent battery charger with high power density.
Different battery brands and types (lead acid batteries, such as flooded, Gel, AGM, and so on, or
lithium-ion batteries, such as lithium iron, lithium manganese, and so on) may require different
charging curves and protection mechanisms for batteries, DBU-3200 is able to be accommodated
through the communication interface; parameters, such as charge voltage, charge current and taper
current, can be adjusted and the protection mechanisms for batteries can also be cancelled.

1.Notes on Operation:

◎ The charger must be installed in a dry and well ventilated area. It should not be exposed to rain

or snow.

◎ The cables between charger and battery should be kept as short as possible to prevent excessive

voltage drop. Too much voltage drop will lead to longer charging period.

◎ Please make sure charging voltage and current meet battery specification.
◎ While charging batteries in series do not mix old and new batteries in the same connection.,
◎ When connecting or disconnecting wires, please ensure the charger is OFF.
◎ Under normal operating conditions, a 5 years warranty is offered for DBU-3200. If failure results

from improper operation, the warranty will not apply to the defective units.

2.Mechanical Design and Installation Procedure

CN500

7

8

2

1

SVR

-V
CN500

SW1

FG L N

CN1

1

2

15

16

1

CN1

+V

-

+

Batteries

Warning: Before connecting a battery, please make sure
the polarity is correct to avoid damaging the charger

Figure2.1 Front panel

1

Installation Procedure:

Please make sure the charger is OFF before connecting the battery to the output terminal. Choose a
cable with suitable wire gauge according to the charging current to connect between the charger and
the battery. Battery polarity must be connected correctly:Terminal(+) to Battery(+); Terminal(-) to
Battery(-), and take notice that the positive and negative ends are not shorted.

3.Derating Curve

3.1 Charging current vs Temperature

3.2 Charging current vs Input Voltage

100

80

230VAC
Input only

60

50

40

LOAD (%)

20

-30 -25 0-10 15 30 50 60 70

AMBIENT TEMPERATURE ( )℃

4.Pin Assignment

1

CN1

2

Pin No. Function

1

+12V-AUX

2

GND-AUX

3

4

5

6

7,8,9

10

11

12

13

14

15
16

Note1: Non-isolated signal, referenced to the [-V(signal)].
Note2: Isolated signal, referenced to GND-AUX.

+5V-AUX

Remote

ON-OFF

DC-OK

T-ALARM

A0,A1,A2

+V (Signal)

-V (Signal)

D0

PC

PV

RTH+

RTH-

15

16

Description

Auxiliary voltage output, 10.6~13.2V, referenced to GND-AUX (pin2).
The maximum load current is 0.8A.This output has the built-in "Oring diodes" and is not controlled by “Remote ON-OFF”.

Auxiliary voltage output GND.
The signal return is isolated from the output terminals (+V & -V).

Auxiliary voltage output, 4.5~5.5V, referenced to GND-AUX (pin2).
The maximum load current is 0.3A.This output has the built-in "Oring diodes" and is not controlled by “Remote ON-OFF

The unit can turn the output ON/OFF by electrical signal or dry contact between and . (Note.2)Remote ON/OFF +5V-AUX
Short (4.5 ~ 5.5V) : Power ON ; Open (-0.1 ~ 0.5V) : Power OFF ; The maximum input voltage is 5.5V.

High (4.5 ~ 5.5V) : When the Vout 16V/32V .≦
Low (-0.1 ~ 0.5V) : When Vout 16V/32V . The maximum sourcing current is 10mAand only for output. (Note.2)≧ ±1V
DC OK is associated with battery low protection.

High (4.5 ~ 5.5V) : When the internal temperature exceeds the limit of temperature alarm, or when Fan fails.

Low (-0.1 ~ 0.5V) : When the internal temperature is normal, and when Fan works normally.

The maximum sourcing current is 10mAand only for output(Note.2)

PMBus interface address lines. (Note.1)

DIP-switch interface lines for charging curve selection. (Note.1)

Connection for output current programming. (Note.1)

Connection for output voltage programming. (Note.1)

Positive output voltage signal.
It cannot be connected directly to the load.

Negative output voltage signal.
It is for certain function reference; it cannot be connected directly to the load.

Temperature sensor(NTC, 5KOhm) comes along with the charger can be connected to the unit to allow temperature
compensation of the charging voltage.

(HORIZONTAL)

±1V

100

90

80

70

60

50

40

LOAD (%)

30

90 100 115 180 264

INPUT VOLTAGE (VAC) 60Hz

2

CN500

7

8

2

1

Pin No.

1,2

3,4

5,6

7

8

Function

DA

DB

-V (Signal)

SDA

SCL

Description

Differential digital signal for parallel control.

Differential digital signal for parallel control.

Negative output voltage signal.

It is for local sense; and certain function reference; it cannot be connected directly to the load.

Serial clock used in the PMBus interface.

Serial clock used in the PMBus interface.

SW1

Pin No.

1,2

Function

Terminal

resistance

Description

SW1 is the selector of terminal resistor that is designed for DA/DB signals and parallel control function.

5.LED Indicators

LED

Green

Orange

Red

Description

Float (stage 3)

Charging (stage 1 or stage 2)

Abnormal status (OTP, OLP, Fan Fail, Charging timeout)

6.Explanation of Operation Logic : (3 stage charge)

At the beginning stage of operation, the charger provides the largest current to charge the batteries,
the LED indicator will lighten in orange. After a period of time (probably a couple of hours, based on
the capacity of the batteries), charging current will decrease gradually. When the output current
reduces to 10% of its maximum value, the charger will go into “float” mode, the LED indicator will
turn to green. The relationship between charging current and charging voltage for each operation
stage is shown in the curves below:

Start

Charge Voltage

Charge Current

Color of LED

Constant Current
(CURVE_CC)

Constant Voltage
(CURVE_CV)

stage 1 stage 2 stage 3

Orange Green

Float

(CURVE_FV)

boost

V

V

float

100% CC

10% CC

STATUS

CONSTANT CURRENT

BOOST CHARGE VOLTAGE

FLOAT CHARGE VOLTAGE

DBU-3200-24

110A 55A

28.8V

27.6V

Figure Charge Curve6.1

3

DBU-3200-48

57.6V

55.2V

Explanation for 3 stage charge curve

(0) Initial stage (battery analysis) Check battery voltage level to see whether there is a battery：

connected.

(1) Stage 1 (constant current) A constant current is provided so that the battery can be quickly：

charged to 2.4V per cell.

(2) Stage 2 (constant voltage) A constant voltage of 2.4V per cell is provided until the charging：

current gradually reduces to 10%.

(3) Stage 3 (float) The output voltage switches to the float voltage, making it 2.3V per cell to keep the：

battery fully charged.

7.Charge Cureve

The factory setting is “default”, which can be programmed via PMBus.

◎ Default 3 stage charging curve

Start

Charge Voltage

Charge Current

Constant Current
(CURVE_CC)

Constant Voltage
(CURVE_CV)

stage 1 stage 2 stage 3

Color of LED

Orange Green

Note: By factory default, PIN10 and PIN14 on CN1 are connected.

◎ Embedded 3 stage charging curve

MODEL

24V

48V

Description

Default, programmable

#1 Pre-defined, gel batter

#2 Pre-defined, flooded battery

#3 Pre-defined,AGM battery

Default, programmable

#1 Pre-defined, gel batter

#2 Pre-defined, flooded battery

#3 Pre-defined,AGM battery

V

28.8

28.4

57.6

56.8

boost

28

29

56

58

float

V

27.6

27.2

26.8

27

55.2

54.4

53.6

54

Float

(CURVE_FV)

CC

(default)

110A

55A

boost

V

float

V

100% CC

10% CC

4

8. &PMBus Communication InterfaceCANBus

DBU 3200 it- is compliant with PMBus Rev.1.1, the maximum communication speed is 100KHz and
has the capability of identifying up to 8 addressed units.

◎ PMBus communication interface is able to provide the current operating status and information

follow :as s

1. Output voltage, current and internal temperature

Alarm and status2.

. Msanufacturer' and model data3

4 Read/write of charge curve settings

For further CANBus information Please contact MEAN WELL for detail.,

PMBus DeviceAddre sing and Charge Mode Selections

◎ Each - unit should have their unique and own device address to communicate over theDBU 3200

PMbus. This 7-bit address is defined as follows:

MSB

1

0 0 0 A2 A1 A0

LSB

A0-A2 allow users to designate the address for each DBU-3200 unit; these three bits are defined
through PIN7 (A0), PIN8 (A1) and PIN9 (A2) on CN1. There are up to 8 different addresses are
available to be assigned. When connecting one of these pins, for example, PIN8, with PIN14
(-V(Signal)), the corresponding bit, A1, is set to logic “0”; when it is kept open, for example, PIN7, the
corresponding bit,A0, is set to logic “1”. Please refer to Figure 8-1(left) for the detailed setup advice.

◎ The charging operation can be determined by the setup over D0, PIN10 on CN1. When D0 is logic
“0”, connecting PIN10 with PIN14(-V(Signal)), DBU-3200 follows a built charging curve to charge the
batteries; when D0 is logic “1”, PIN10 kept open, the charging operation is completely defined by the
control over PMBus, PV/PC or SVR. Please refer to Figure 8-1(right).

Module

No.

0

1

2

Device address

A0

0

1

0

A1 A2

0

0

1

D0 Description

0

0

0

0 Charging curve

1 PMBus or V PC or SVR controlP/

3

4

5

6

7

1

0

1

0

1

1

0

0

1

1

0

1

1

1

1

Figure 8-1

5

Charging Curve

When it is opted for charging curve, D0 set to 0, charging curve function is enabled with additional
PMBus commands. There are 4 built-in charging curves, “default” curve, one pre-defined curve for “gel
battery”, one pre-defined curve for “flooded battery” and one pre-defined curve for “AGM battery”.
Each curve can be selected by Command B4h CURVE_CONFIG.
In addition, users are able to customize their own charge curves, which will be stored to “default” after
modification. CV can be set by Command B1h CURVE_CV; FV can be set by Command B2h
CURVE_FV; Charge current level of stage1 can be set by Command B0h CURVE_CC; Taper current
level from stage 2 to stage 3 can be set by Command B3h CURVE_TC. Please refer to the following
PMBus Command List in table 8-2 for detailed information on commands and parameters.

NOTE: 1. The updated charging parameters is saved into EEPROM. The updated charging curve

takes effect after DBU-3200 is restarted.

2. When charging curve is enabled, the following commands will be invalid while other PMBus
commands are effective: Command 01h OPERATION (regarding Remote ON-OFF function),
command 22h VOUT_TRIM (regarding Output voltage programming function) and
command 46h IOUT_OC_FAULT_LIMIT (regarding Output current programming function).

PMBus, PV/PC or SVR Functions:

Users are able to fully control and design the entire charging behavior, without the charging curve,
by one of the following means- PMBus command, PV/PC function or SVR adjustment. The operating
priority is, PMBus > PV/PC > SVR.

NOTE: When operating in this mode, PMBus commands B0h/B1h…B8h can be set but there will
be no response whereas other PMBus commands and functions work normally.

6

Command

Code

01h

02h

19h

20h

21h

22h 2

46h

47h

79h

7Ah

7Bh

7Ch

7Dh

7Eh 1

80h

81h

88h

8Bh

8Ch

90h

91h

98h

99h

9Ah

9Bh

9Ch

9Dh

9Eh

Command

Name

OPERATION

ON_OFF_CONFIG

CAPABILITY

VOUT_MODE

VOUT_COMMAND

VOUT_TRIM R/W Word

IOUT_OC_FAULT_LIMIT R/W Word

IOUT_OC_FAULT_RESPONSE

STATUS_WORD

STATUS_VOUT

STATUS_IOUT

STATUS_INPUT

STATUS_TEMPERATURE

STATUS_CML R Byte

STATUS_MFR_SPECIFIC

STATUS_FANS_1_2

READ_VIN

READ_VOUT

READ_IOUT

READ_FAN_SPEED_1

READ_FAN_SPEED_2

PMBUS_REVISION

MFR_ID

MFR_MODEL

MFR_REVISION

MFR_LOCATION

MFR_DATE

MFR_SERIAL

Transaction

Type

R/W Byte

Read Byte

Read Byte

R Byte

R Word

R Byte

R Word

R Byte

R Byte

R Byte

R Byte

R Byte

R Byte

R Word

R Word

R Word

R Word

R Word

R Byte

Block Read

Block Read

Block Read

Block R/W

Block R/W

Block R/W

# of data

Bytes

1

1

1

1

2

2

1

2

1

1

1

1

1

1

2

2

2

2

2

1

12

12

6

3

6

12

Description

Remote ON/OFF control

ON/OFF function configuration

Capabilities of a PMBus device

Define data format for output voltage
(format: Linear, N= -9)

Output voltage setting value
(format: Linear, N= -9)

Output voltage trimmed value
(format: Linear, N= -9)

Output overcurrent setting value

(format: Linear, N= -2)

Define protection and response when an
output overcurrent fault occurred

Summary status reporting

Output voltage status reporting

Output current status reporting

AC inpit voltage statusreporting

Temperature status reporting

Communication, logic,
Memory status reporting

Manufacture specific status reporting

Fan1 and 2 status reporting

AC input voltage reading value
(format: Linear, N=-1)

Output voltage reading value
(format: Linear, N= -9)

Output current reading value
(format: Linear, N= -2)

Fan speed 1 reading value
(format: Linear, N= 5)

Fan speed 2 reading value
(format: Linear, N= 5)

The compliant revision of the PMBus
(default: 11h for Rev. 1.1)

Manufacturer's name

Manufacturer's model name

Firmware revision

Manufacturer's factory location

Manufacture date. (format: YYMMDD)

Product serial number

Table 8-2

7

Command

Code

B0h

B1h

B2h

B3h

B4h

B5h

B6h

B7h

Valid when charging according to charge curve (D0=0)

B8h

Command

Name

CURVE_CC

CURVE_CV

CURVE_FV

CURVE_TC

CURVE_CONFIG

CURVE_CC_TIMEOUT

CURVE_CV_TIMEOUT

CURVE_FLOAT_TIMEOUT

CHG_STATUS

Transaction

Type

R/W Word

R/W Word

R/W Word

R/W Word

R/W Word

R/W Word

R/W Word

R/W Word

READ Word

Note：

◎Definition of Command B4h CURVE_CONFIG：

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0

# of data

Bytes

2

2

2

2

2

2

2

2

2

Description

Constant current settingvalue of chargingcurve
(format: Linear, N= - )2

Constant voltage settingvalue of chargingcurve
(format: Linear, N= -9)

Constant voltage settingvalue of chargingcurve
(format: Linear, N= -9)

Taper current setting valueof chargingcurve
(format: Linear, N= - )2

Configuration setting of chargingcurve

CC stage timeoutsetting value ofcharging curve
(format: Linear, N= 0)

CV stage timeoutsetting value ofcharging curve
(format: Linear, N= 0)

Floating timeout settingvalue of chargingcurve
(format: Linear, N= 0)

Charger's status reporting

High byte -----FVTOE CVTOE CCTOE

Low byte - STGS -- TCS CUVS

Low byte

Bit 1-0 CUVS ：Charge Curve selecting
00＝Customized Charge Curve (default)
01＝Gel Battery
10＝Flooded Battery
11＝AGM Battery

Bit 3-2 TCS：Temperature Compensation setting
00 disable＝
01 -3 mV/ /cell (default)＝
10 -4 mV/ /cell＝

℃

℃

11 -5 mV/ /cell＝ ℃

Bit 6 STGS 2/3： stage charge setting
0 3 (default, Curve_VBST and CURVE_V FLOAT)＝ stage charge

1 2 only CURVE VBST＝(_)stage charge

High byte
Bit 0 CCTOE：Constant Current Stage timeout indication enable
0 (default)＝ disabled
1＝ enabled

Bit 1 CVTOE：Constant Voltage Stage timeout indication enable
0 (default)＝ disabled
1＝ enabled

Bit 2 FVTOE Float Voltage Stage Timeout Indication Enable：
0 (default)＝ disabled
1＝ enabled

8

◎ Definition of Command B8h CHG_STATUS：

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2

High byte FVTOF CVTOF CCTOF - NTCERBTNC

Low byte ----

Low byte
Bit 0 FULLM：Fully Charged
0＝NOT fully charged
1＝fully charged

Bit 1 CCM：Constant Current Mode Status
0＝the charger NOT in constant current mode
1＝the charger in constant current mode

Bit 2 CVM：Constant Voltage Mode Status
0＝the charger NOT in constant voltage mode
1＝the charger in constant voltage mode

Bit 3 FVM：Float Mode Status
0＝the charger NOT in float mode
1＝the charger in float mode

Bit1 Bit0

-

CVMFVM

CCM

EEPER

FULLM

High byte
Bit 0 EEPER: EEPROM Charge Parameter Error

＝0 data of charge parameter correct

1＝data of charge parameter error

Bit 2 NTCER: Temperature Compensation Status
0＝NO short-circuit in the circuitry of temperature compensation
1＝the circuitry of temperature compensation has short-circuited

Bit 3 BTNC: Battery Detection
0＝battery detected
1＝NO battery detected

Bit 5 CCTOF：Time-out Flag of Constant Current Mode
0 time-out＝NO in constant current mode
1＝constant current mode timed out

：Bit 6 CVTOF Time-out Flag of Constant Voltage Mode
0 time-out＝NO in constant voltage mode
1＝constant voltage mode timed out

：Bit 7 FTTOF Time-out Flag of Float Mode
0＝NO time-out in float mode
1＝float mode timed out

9

Note:

EEPER When EEPROM Charge Parameter Error occurs, the charger stops charging the battery and

:

the LED indicator turns red. The charger needs to re-power on to re-start charging the battery.

NTCER: When Temperature Compensation Short occurs, the charger output will shut down and the

LED indicator will turn red. The charger will automatically restart after the Temperature
Compensation Short condition is removed.

BTNC When there is no battery detected, the charger stops charging the battery and the LED

:

indicator turns red. The charger needs to re-power on to re-start charging the battery.

CCTOF When timeout arises in the Constant Current stage, the charger stops charging the battery

:

and the LED indicator turns red. The charger needs to re-power on to re-start charging the
battery.

CVTOF When timeout arises in the Constant Voltage stage, the charger stops charging the battery

:

and the LED indicator turns red. The charger needs to re-power on to re-start charging the
battery.

FVTOF: When timeout arises in the Float stage, the charger stops charging the battery and the LED

indicator turns green. This charging flow is finished; the charger needs to re-power on to
start charging a different battery.

PMBus Data Range and Tolerance

◎ Display parameters

PMBus command

READ_VIN

READ_VOUT

READ_IOUT

(Note. 1)

READ_FAN_SPEED_1

READ_FAN_SPEED_2

Model

ALL

24V

48V

24V

48V

ALL

ALL

Figure 8-3

Range

80 ~ 264V

0 ~ 30V

0 ~ 60V

0 ~ 160A

0 ~ 80A

0 ~ 25000RPM

0 ~ 25000RPM

Tolerance

±10V

±0.36V

±0.48V

±5.32A

±2.68A

±2000RPM

±2000RPM

10

◎ Control parameter

PMBus command Adjustable range Tolerance DefaultModel

OPERATION

VOUT_COMMAND

(Note. 2)

VOUT_TRIM

(Note. 2)

CURVE_CV

(Note. 3)

CURVE_FV

(Note. 3)

IOUT_OC_FAULT_LIMIT

CURVE_CC

CURVE_TC

CURVE_CC_TIMEOUT
CURVE_CV_TIMEOUT

CURVE_FLOAT_TIMEOUT

ALL

24V 24V 24V

48V 48V 48V

24V

48V

24V

48V

24V

48V

24V

48V

24V

48V

ALL

00h(OFF) / 80h(ON)

-6 ~ 6V

-12 ~ 12V

18 ~ 30V

36 ~ 60V

18 ~ VBST

36 ~ VBST

22 ~ 110A

11 ~ 55A

5.5A ~ 33A

3A ~ 16.5A

60 ~ 64800 Minute

N/A

N/A

N/A

±0.36V

±0.48V

±0.36V

±0.48V

±0.36V

±0.48V

±5.32A

±2.68A

±5.32A

±2.68A

±5 Minute

80h(ON)

0V

0V

28.8V

57.6V

27.6V

55.2V

110A

55A

11A

5.5A

600 Minute

Figure 8-4

Note:

1. will display ZERO amp when output current is less than values in the table below:READ_IOUT

Minimum readable currentModel

24V 5.3A 1A±

48V 2.7A 1A±

Figure 8-5

When using PMBus to adjust output voltage, VOUT_COMMAND only can be used to display the

2.

rated voltage of the unit and cannot be written. It is VOUT_TRIM that sets up the amount of
trimmed voltage. Taking DBU-3200-24 as an example, to get a 18V output, please set value of
VOUT_TRIM to -6V.Adjustable voltage range for each model is shown as below:

Adjustable voltage rangeModel

24V 18 ~ 30V

48V 36 ~ 60V

Figure 8-6

3.

The value of CURVE_FV should be set less or equal to CURVE_CV,If CURVE_FV is greater than
CURVE_CV, it will be saved as CURVE_FV = CURVE_CV in EEPROM.

11

4.

Insert an at least 35msec delay between commands.

5.

When there is no any PMBus command detected for 10 sec, the charger restores to the factory
default settings, that is operation = ON…etc. please refer to Tabel 8-4.

6.

Data format of IOUT_OC_FAULT_LIMIT(46h), CURVE_ICHG(B0h), CURVE_ITAPER(B3h) is as
below: (Please refer to PMBus_Specification_Part_II_Rev_1-1 for detailed information)

Data format of VOUT_MODE, VOUT_MODE, VOUT_COMMAND, VOUT_TRIM, READ_VIN,

7.

READ_VOUT, READ_IOUT, READ_TEMPERATURE_1, READ_FAN_SPEED_1,
READ_FAN_SPEED_2, CURVE_VBST, CURVE_VFLOAT, CURVE_CC_TIMEOUT,
CURVE_CV_TIMEOUT, CURVE_FLOAT_TIMEOUT is as below: (Please refer to
PMBus_Specification_Part_II_Rev_1-1 for detailed information)

7.1DIRECT Data Format
DIRECT format data is a two byte, two’s complement binary integer. IRECT format data may
be used with any command that sends or reads a arametric value. If a PMBus device uses
DIRECT form data, this shall be clearly described in the product literature.

12

7.1.1 Interpreting Received Values
The host system uses the following equation to convert the value received from the
PMBus device into a reading of volts, amperes, degrees Celsius or other units as
appropriate:

7.1.2 Sending A Value

◎ Please refer to our specifications about PV/PC or SVR Function.

9.Function description

9.1 Input voltage

◎The AC90~264V DC127~370Vinput voltage range is or .
◎The provided input voltage must fall within the specified range; otherwise, the unit may

be non-functional.Also the active PFC circuit may fail or get damaged.

◎The efficiency will be lower and the output current should be reduced according to the

Derating Curve when the unit is applied with an input voltage belowAC180V.

9.2 Power factor correction (PFC)

◎Built-in active PFC circuit: PF>0.95 when input voltage is between 90-230Vac with full load at the

output. On the other hand, if the input voltage is > 230V or output is not at full load, the PF will

drop below 0.95

13

93. Temperature Compensation

Temperature sensor which comes with the charger can be connected to the unit to allow
temperature compensation of the charging voltage. If the temperature sensor is not used, the
charger can still work normally.

PIN15 RTH+

NTC

PIN16 RTH-

CN1

+V

-V

10.Wiring for battery

Select suitable wire guage based on rated charging current. Refer to the following table for
minimum wire gauge. It is highly recommended using RED wire for (+) connection and BLACK wire
for (-) connection

AWG

Cross section(mm )

14 2.1 12

12 3.3 22

10 5.3 35

710 46

616 60

4

2

11.Suggested attery apacityBC

Model

DPU-3200-24

DPU-3200-48

Battery capacity

330-1000AH

180-550AH

25

43

2

Maximum current(A)

UL1015(600V 105 )℃

80

110

Note:1.Using battery capacity larger than the suggested value will not lead to damage of the battery.

The main drawback is it may take longer to fully charge the battery.

2.If you're unsure about max allowable charging current of your battery, please refer to the

battery's technical specification or consult its manufacturer.

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1.2 Series and Parallel Connection of Batteries

1.Batteries in series
Voltage can be doubled when 2 batteries are connected in series However the capacity Ah will., ()

., =.remain the same For example 2 x 12V 100Ah batteries connected in series 24V 100A

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BatteriesBatteries

2.Batteries in parallel

When 2 batteries are connected in parallel, voltage remains the same and the capacity (Ah) doubles.
For example, 2 x 12V 100Ah batteries connected in parallel = 12V 200Ah.

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Batteries

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Batteries

1.3 Troubleshooting

Failure State

Unable to charge

the battery

LED indicator does
not turn Green after
a long charging
period

Possible Cause

Input voltage too low

Battery is over lifetime or damaged

Output cables are too thin

Make sure input source is
between 90~264VAC

Replace with a new battery

Replace with suitable wire gauge

Suggested Solutions

If you are unable to clarify the problem you are facing, please contact MEAN WELL or any of
our distributors for repair service.

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No.28, Wuquan 3rd Rd., Wugu Dist., New Taipei City 248, Taiwan