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DBU-3200 Instruction Manual

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Dec. 2018 Version 0

2018-12-18

0. roduct Description

1.Notes on Operation

2.Mechanical Design and Installation Procedure

3.Derating Curve

4.Pin Assignment

5.LED Indication

6.Explanation of Operation Logic

8.PMBus and CANBus Communication Interface

9.Function Description

10.Wiring for Battery

11.Suggested Battery Capacity

12 Series and Parallel Connection

13.Troubleshotting

3.1 Charging Current vs Temperature

3.2 Charging Current vs Input Voltage

9.1 Input Voltage Range

9.2 Power Factor Correction PFC

(

)

9.3 Temperature Compensation

7.Charge Curve

Summary of Contents for DBU-3200 Series

Page 1: ...DBU 3200 Instruction Manual ...

Page 2: ...rve 4 Pin Assignment 5 LED Indication 6 Explanation of Operation Logic 8 PMBus and CANBus Communication Interface 9 Function Description 10 Wiring for Battery 11 Suggested Battery Capacity 12 Series and Parallel Connection 13 Troubleshotting 3 1 Charging Current vs Temperature 3 2 Charging Current vs Input Voltage 9 1 Input Voltage Range 9 2 Power Factor Correction PFC 9 3 Temperature Compensation...

Page 3: ...a 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 disconn...

Page 4: ... 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 maximum load current is 0 8A This output has the built in Oring diodes and is not controlled by Remote ON OFF Connection for output voltage programming Note 1 High 4 5 5 5V When the internal temperature exceeds the limit of temperature alarm or when Fan fails Low 0 1 0 5V...

Page 5: ...arging voltage for each operation stage is shown in the curves below Charge Current Constant Current CURVE_CC stage 1 stage 2 stage 3 Constant Voltage CURVE_CV CURVE_FV Float Start Charge Voltage 100 CC 10 CC boost float V V Orange Green Color of LED STATUS BOOST CHARGE VOLTAGE FLOAT CHARGE VOLTAGE 28 8V 27 6V DBU 3200 24 57 6V 55 2V DBU 3200 48 Figure Charge Curve 6 1 CONSTANT CURRENT 110A 55A Pi...

Page 6: ...nt 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 Note By factory default PIN10 and PIN14 on CN1 are connected MODEL 24V 48V V...

Page 7: ... 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 fo...

Page 8: ...s 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 re...

Page 9: ...lue 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 READ_FAN_SPEED_1 READ_FAN_SPEED_2 PMBUS_REVISION R Word R Word R Byte 99h 9Ah 9Bh 9Ch 9Dh 9Eh 12 12 6 3 6 12 Manufacturer s name Manufacturer s model name Firmware revision Manufacturer s factory location Manufacture date format YYMMDD Product serial number MFR_ID MFR_MODEL...

Page 10: ...V cell 11 5 mV cell B8h B4h B5h B6h B7h B3h 2 2 2 2 2 2 Charger s status reporting Configuration setting of charging curve CC stage timeout setting value of charging curve format Linear N 0 CV stage timeout setting value of charging curve format Linear N 0 Floating timeout setting value of charging curve format Linear N 0 Taper current setting value of charging curve format Linear N 2 CHG_STATUS C...

Page 11: ...ircuit in the circuitry of temperature compensation 0 battery detected 0 time out NO in constant current mode 0 time out NO in constant voltage mode 0 NO time out in float mode 1 data of charge parameter error 1 the circuitry of temperature compensation has short circuited 1 NO battery detected 1 constant current mode timed out 1 constant voltage mode timed out 1 float mode timed out Bit7 Bit6 Bit...

Page 12: ...e 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 charg...

Page 13: ... 11A 600 Minute 5 5A 24V ALL 48V Minimum readable current Model 24V 5 3A 1A 48V 2 7A 1A 1 will display ZERO amp when output current is less than values in the table below READ_IOUT Note Adjustable voltage range Model 24V 18 30V 48V 36 60V 2 When using PMBus to adjust output voltage VOUT_COMMAND only can be used to display the rated voltage of the unit and cannot be written It is VOUT_TRIM that set...

Page 14: ...7 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 Data format of VOUT_MODE VOUT_MODE VOUT_COMMAND VOUT_TRIM READ_VIN READ_VOUT READ_IOUT READ_TEMPERATURE_1 READ_FAN_SPEED_1 READ_...

Page 15: ...ge range is or The provided input voltage must fall within the specified range otherwise the unit may 9 2 Power factor correction PFC be non functional Also the active PFC circuit may fail or get damaged output On the other hand if the input voltage is 230V or output is not at full load the PF will The efficiency will be lower and the output current should be reduced according to the Built in acti...

Page 16: ...nsor 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 11 Suggested attery apacity B C Note 1 Using battery capacity larger than the suggested value will not lead to damage of the battery Model DPU 3200 24 DPU 3200 48 330 1000AH 180 550AH Battery capacity The ...

Page 17: ...ut voltage too low Battery is over lifetime or damaged Output cables are too thin Suggested Solutions 15 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 Batteries Batteries 1 2 Series and Parallel Connection of Batteries 1 Batteries in series Voltage can be do...

Page 18: ...No 28 Wuquan 3rd Rd Wugu Dist New Taipei City 248 Taiwan ...

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