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DC-DC CHARGER / BATTERY EQUALIZER / VOLTAGE REDUCER
Important
The BBC -3140 must be used according to the local safety standards with the
particular application. All wiring and connections to the units should be done by a
qualified person. No modification or adjustment is allowed on the unit.
Safety Precautions and Installation Procedure
1. Always disconnect the 24VDC supply at the source before any connection
made on the output.
2. Always double check on the correct polarity on both the input and the
output before the last wire connection is made on the output and input
terminals.
3. Use appropriate gauge of wires and fuse /circuit breaker.
4. Mount the unit as close as possible to the battery banks and at a well
ventilated spot.
The cables must have proper sized lugs with heat-shrunk insulation.
5. Double check tightness of terminal nuts by wriggling joining cable a few times.
It pays to double check on the tightness of the nuts which may become loosen
due to vibration and shocks from the vehicle on the road.
BBC-3140
USER MANUAL
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Summary of Contents for Voltech BBC-3140
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Page 1: User Manual
BBC-3140 USER MANUAL DC-DC CHARGER / BATTERY EQUALIZER / VOLTAGE REDUCER Important The BBC -3140 must be used according to the local safety standards with the particular application. All wiring and connections to the units should be done by a qualified person. -
Page 2: Applications And Features
Introduction This micro-processor controlled 3 stage DC-DC charger can be installed as: battery charger or battery equalizer or regulated dc-dc step-down converter. It operates with any DC input source of 24- 30 V with various output voltage according to selected installation. Applications &... - Page 3 High Output Voltage When output voltage is higher than factory preset, unit will be disabled and LED A turns red. Unit has to be manually switch off then on again to restore normal operation Thermal Overload When unit’s internal temperature exceeds factory preset limit, unit shuts down and LED A turns red.
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Page 4: Front Panel Operation
Front Panel Operation SWITCH SWITCH TO ↑ ON LED B AGM / GEL CALCIUM-CALCIUM User Defined Charge A User Defined Charge B Battery Equalizer: Output V = ½ Input V LED B OFF , LED C OFF All switches to OFF : Output = 13.8VDC LED B OFF , LED C OFF 2 or more switches to ↑... - Page 5 LED C. Charging status: Green blinking: Bulk/ Absorption Charge Green solid: Float Charge A. Remote Temperature sensor socket for battery B. Output to battery or load. C. Power ON / OFF switch. D. Explanation of the DIP switches settings for Battery Type or charge profile selection.
- Page 6 Installation and operation The remote on-off/ ignition control terminal at the back of the unit are shorted as default setting for continuous operation. See section of instruction for remote on-off and ignition control application in the appendix A. DC-DC CHARGER INSTALLATION: 1.
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Page 7: Charging Profiles
Charging Profiles This special 3 Stage charging profile is designed to give quick and complete charge to the auxiliary battery bank and at the same time provides sufficient power to the loads that connected to the auxiliary battery while keeping the battery fully charged. - Page 8 Voltage Reducer Mode (Step Down Converter): 1. Set all the DIP switches to down position , check LED B and LED C are both off to confirm unit becomes a Voltage Reducer with 13.8V & 40A output. 2. Double check for correct polarity on the input and output before connections are made.
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Page 9: Specifications
Battery Equalizer Mode As a Battery Equalizer, it can be installed in any 24VDC (two 12V battery in series) system where the center tap is used to power heavy 12V loads. It keeps both batteries balanced during charging of 24V battery and balanced the second battery when used as a 12VDC source. - Page 10 DC-DC Battery Charger Mode Float (GEL/ AGM) 13.2V Float (WET) 13.5V Float (Calcium-Calcium) 13.8V Absorption (GEL/ AGM) 14.1V Absorption (WET) 14.4V Absorption (Calcium-Calcium) 15.5V With Optional Remote Control Module BBR-3100 User Defined Float Voltage Range 12.6V ~ 14.0V User Defined Absorption Voltage Range 13.0V ~ 15.5V User Defined Absorption Time Range 1 ~ 6hours...
- Page 11 Appendix A Remote on/off ignition control A. Ignition Terminals The ignition terminals are short circuit by factory setting as shown for continuous operation of the unit. B. When these two terminals are open circuit there will be no output. C. Remote On-Off function by connecting the two wires to the ignition terminal as shown Short=On, Open=Off.
- Page 12 D. Ignition Control Connect the supplied red wire to the + ignition terminal at back of unit. Make connection of the red wire to the ignition switch of the car. The unit will operate when the ignition is switched on. The power on-off switch F of the unit must be on all the time in order to use this function.
- Page 13 I. Introduction The Remote Display Module is an optional module which has two functions: 1. Displays real time key information of the BBC-3140. 2. Sets charging parameters of the two user defined charging profiles. Absorption Voltage Range: 13V to 15.5V Absorption Time: 1 hour to 6 hours Float Voltage: 12.6V to 14V...
- Page 14 III. Panel Buttons Operation 1. To switch ON LED backlight. 2. Scroll up display of the real time information of main unit BBC-3140. 3. Scroll down display of the real time information of main unit BBC-3140. 4. Enter input of charging parameters for the User Defined Charge Profiles.
- Page 15 IV. Indications When Remote Display Module is connected to BBC-3140, it displays the “Initialization”, “Version of software”, “Brand or Make” and then scrolls cyclically to show all the real time information according to the mode selected in the main unit.
- Page 16 Decoding the indications of the display. 1. IUVP: Input Under Voltage Protection 2. IOVP: Input Over Voltage Protection 3. Over-temp: Battery Over Temperature protection 4. Power: unit is set at 13.8V Voltage Reducer Mode 5. Half: Output = Half the Input voltage V.
- Page 17 VI. Flow Chart of Value Setting Instruction...
- Page 18 An example of setting the values in user defined charging profile. REV3 201404 7673-3140-3522...
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