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Mounting Instructions and Operating Manual for Unit Combination of
Mains Charger, Charging Converter and MPP Solar Controller including Battery Trainer
VBCS 30/20/250 Triple CI
VBCS 45/30/350 Triple CI
VBCS 60/40/430 Triple CI
All-automatic battery charger with 3 charging sources for optimum battery charging during
mains operation and solar operation, designed for motor homes and intervention vehicles.
Please completely read this operating and installation manual thoroughly prior to connection
and start-up, in particular "Safety Regulations and Appropriate Application", s. page 18.
VOTRONIC chargers of series "VBCS Triple" excel by their compact design, low weight (high-frequency switching power
supply, Switch Mode Technology), as well as the intelligent microprocessor charging control with characteristic lines of
charging „IU1oU2oU3" and dynamic charging time calculation.
9 charging programs stored in the memory for Lead-Acid, Gel and AGM, as well as advanced Lithium LiFePO4 Batteries,
ensure unattended, quick and careful full charging from any charging state with subsequent trickle charging and maintenance
of the battery and simultaneous supply of the connected consumers 12 V during the entire charging process. Consumed
energy will be compensated immediately.
Mains Operation, during standstill operation at the external socket of the mains supply:
• The full charging capacity in the universal wide range from 110 V AC - 230 V AC without any switching is available
worldwide, even in case of large deviations in the power supply (low voltage/overvoltage, sine curve, frequency).
• Efficient charging of the board battery and supply of the 12 V consumers via mains.
• Auxiliary charging 12 V/4-5 A for support charging and trickle charging of the vehicle's (lead) starter battery in case of
extended standstill periods.
• Due to the long-term characteristic lines of charging, the unit may be connected continuously to the mains (such as for
standstill periods or winter breaks).
Charging Converter, "B2B" Operation, mobile operation from dynamo and starter battery (Battery to Battery):
• The efficient charging converter (booster) allows full charging of the board battery during driving.
• It increases/reduces the voltage to the level, which is required for precise charging of the board battery with the
optimum characteristic line of charging.
• Cable losses and considerable voltage fluctuations of the dynamo, known from Euro 6 vehicles, are completely
compensated.
• The simultaneously supplied 12 V consumers are protected against overvoltage and voltage fluctuations.
Solar Operation, "MPP" (Maximum-Power-Point):
• Controllers according to the MPP technology are continuously and automatically calculating the maximum power yield
(MPP) of the solar modules several times per second. This surplus of charging current of 10 % to 30 % ensures short
charging times and the best possible power yield of the solar system.
• Auxiliary charging for support charging and trickle charging of the vehicle's starter battery in case of extended standstill
periods.
• Terminal "AES", for automatic commutation of refrigerators with "AES" (Automatic Energy Selector, Electrolux/
Dometic) from gas operation to 12 V operation in case of excess solar power.
Pulser Operation, training for the board battery during the charging breaks, if a charging source is not existing:
The battery training protects the unused (lead) battery during the winter break, seasonal operation or extended standstill
periods from premature ageing and failure due to sulphation.
Further Characteristics of the Unit:
• The charging voltage being free from peaks is controlled in such a way, that overcharging of the batteries is excluded.
• All-automatic Continuous Operation: The charger may be connected continuously to the batteries, thus keeping the full
charge. If the charging source is missing (power failure, engine stop, night), the batteries will not be discharged.
• Parallel and Floating Operation: In case of simultaneous consumption, charging of the battery is continued or trickle
charging is effected. Calculation and control of the adaptation of the charging times is effected automatically by the
charger.
Converter VCC 12 V-12 V/30 A, AC Mains 12 V/20 A, MPP Solar 250 Wp
Converter VCC 12 V-12 V/45 A, AC Mains 12 V/30 A, MPP Solar 350 Wp
Converter VCC 12 V-12 V/60 A, AC Mains 12 V/40 A, MPP Solar 430 Wp
No. 3242
No. 3244
No. 3246
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Summary of Contents for Votronic 3242
- Page 1 "Safety Regulations and Appropriate Application", s. page 18. VOTRONIC chargers of series "VBCS Triple" excel by their compact design, low weight (high-frequency switching power supply, Switch Mode Technology), as well as the intelligent microprocessor charging control with characteristic lines of charging „IU1oU2oU3“...
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Page 2: Installation Of The Unit
- 2 - • Unattended Charging: Multiple protection against overload, overheating, overvoltage, short- circuit, incorrect behaviour and back discharge of the battery by electronically controlled gradual reduction down to complete separation of charger and battery. • Power Pack Function: Allows supply of the consumers without battery (such as during battery replacement). •... - Page 3 - 3 - Standard Connection Plan incl. Options: Safety Instruction for all connection methods: Connection is only allowed to a shock-proof socket, which has been installed according to the valid technical regulations, protected with max. 16 A (if required, mobile/stationary with a fault current breaker (FI) with a nominal residual current of 30 mA).
- Page 4 - 4 - Connection Plan Special Case "TR"-ByPass Relay in case of very high consumer current rates, such as for air-conditioner operation during driving by means of powerful inverter Instructions for faultless function of this option: Connect the VBCS Triple and the relay with connection cables of a length of approx. 50 cm and with cross- sections acc.
- Page 5 - 5 - Connection Plan Special Case for existing Electroblock "EBL", "EVS" etc.: Use the cabling and the fuses for the electroblock provided by the customer and insert the changeover relay into the cable to the starter battery (changeover relay only necessary if starter battery should be connected during motor off (D+ low) with the Output B1).
- Page 6 - 6 - Table 1: Recommended Cable Cross-Sections, Cable Lengths and +Fuse Capacities: Configuration of the 4 large capacity terminals - Com., + Board I, + Start II, + Solar Panels • The central connection point of all minus cables for units and batteries is the – pole of the battery Board I! If a current measuring shunt is used (for instance, by the battery computer), the central point of the minus cables is at the measuring shunt.
- Page 7 - 7 - Connection of the 9-pole Terminal Strip (Sensor Inputs, Terminals): Plug-in Terminal Strip: In case of limited space, the strip can be withdrawn and inserted at any time for easy cable connection. Cable Cross-Sections: 0,75 mm or more. Length to be stripped: approx.
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Page 8: Battery Temperature Sensor
- 8 - Connection: Lead a single-pole cable (0.5-1.5 mm²) from the unit's terminal "AES" to the refrigerator's terminal "T10" or "S+". For "AES" operation please make sure that the "heating cartridge" of the refrigerator is also supplied with 12V! Function: The solar controller recognizes excess power (the lighting LED „Solar“... -
Page 9: Unit Settings
- 9 - Unit Settings: Carefully move the 12 micro slide switches behind the front panel of the unit to the desired position using a small screw-driver. The switch actuators are shown in white. 1.) How to Set the battery type "Board I"- (Design, Technology): 8 Charging programs for the different battery types are stored in the unit. - Page 10 - 10 - 3 "AGM 1 14.4 V" Switch Position U1=14.40 V U2=13.50 V U3=13.20 V 1.5-5 h 24 h Continuous Regeneration 2x per week for 1 h at mains operation Adapted to closed, gas-tight AGM (absorbed glass mat)/lead- fleece batteries VRLA with an indicated charging voltage of "14.4 V".
- Page 11 - 11 - 6"LiFePO4 13.9 V" Switch Position U1=13.90 V U2=13.90 V U3=13.50 V 0,5-1h 24 h Continuous Auto Wake Up every 10 days for 0,4h at mains operation 7"LiFePO4 14.2 V" Switch Position U1=14.20 V U2=13.60 V U3=13.40 V 0,5-1h 24 h Continuous...
- Page 12 - 12 - 2.) Further Settings and Functions, 8 Slide Switches: Table 2: How to set "Cap." Battery Size (Capacity, Ah) Board I: How to set the 2 Slide Switches for 4 Capacity Ranges (Ah): VBCS 30/20/250 VBCS 45/30/350 VBCS 60/40/430 charg- charging charging...
- Page 13 5.) VBS – CI: The switch is used to change between the VBS (Votronic Bus System) and the CI-BUS (CIVD e. V.). The VBCS Triple must be integrated into the Votronic Bus System or CI-BUS Board Management by the vehicle manufacturer, extension partner or a system integrator! 6.) TR –...
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Page 14: Operation
The data of the solar functions are graphically processed, recorded and stored over a longer period of time. Possible use individually or with the above displays together as well as with a Votronic LCD Battery Computer S for the battery data. Ready to use with connection cables (Plug and Play). - Page 15 - 15 - Pilot Lamps: "Battery Full" (Battery Board I fully charged, green): • If it is lighting: Battery (batteries) had (have) been charged to 100 %, trickle charge U2 and storage charge U3, finished. • If it is flashing: Main charging process is effected in the charging phase U1, indication of charging state of approx. 75 % (lead) / 90 % (LiFePO4).
- Page 16 - 16 - Start-up and Function Test: The battery Board I (lead-acid, gel, AGM or Lithium-LiFePO4) will be controlled according to the set characteristic line of charging "IU1oU2oU3" during all modes of charging. During mains and solar operation, the integrated auxiliary charging automatically provides max. 4-5 A charging current for support charging and trickle charging of the (lead) starter battery II of the vehicle, without overcharging due to extended standstill periods and current consumption (such as by own consumption of the vehicle, lighting, audio equipment etc.).
- Page 17 - 17 - Charging Process Main Port "Board I": A new, complete main charging cycle will be executed: • At night, if the D+ signal is missing or in case of power failure. • In case of a lower deviation of the battery reset voltage of approx. 12.75 V/13.25 V beyond the maximum charger current for 30 seconds due to high load.
- Page 18 We do not assume any liability for any damage resulting hereof. The liability exclusion is extended to any service being executed by third, which has not been ordered by us in writing. Service is to be effected exclusively by VOTRONIC Lauterbach, Germany. Declaration of Conformity:...
- Page 19 - 19 - Technical Data: VBCS 30/20/250 VBCS 45/30/350 VBCS 60/40/430 Triple CI Triple CI Triple CI Charging Port Supply Battery "Board I": Lead-Acid, Gel, AGM Batteries Nominal Voltage: 12 V 12 V 12 V Capacity (Battery Size), adjustable, recommended 45 - 280 Ah 68 - 420 Ah 90 - 560 Ah...
- Page 20 All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written consent of the manufacturer. Copyright VOTRONIC 12/2022. Made in Germany by VOTRONIC Elektronik-Systeme GmbH, Johann-Friedrich-Diehm-Str. 2, 36341 Lauterbach/GERMANY Phone: +49 (0)6641/91173-0 Fax: +49 (0)6641/91173-10 E-mail: info@votronic.de...
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