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TCW Technologies IBBS-12v-6ah-CRT-V Manual

Integrated back-up battery system
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Integrated Back-up Battery System
Model: IBBS-12v-6ah-CRT-V
The Integrated Back-up Battery System, IBBS, is an electronic
system that combines a Lithium-Iron-Phosphate (Li-Fe-PO4) battery
pack, a charger and switching logic in one convenient package. The
IBBS provides an engineered solution to enable an endurance bus for
critical loads found in aircraft. It simplifies the wiring and installation of
a source of back-up power by integrating all of the key elements in a
single enclosure. The IBBS system provides back-up power to critical
electronic loads such as EFIS, GPS, Autopilots, Radios, Electronic
Ignition systems and engine monitor systems.
Integral to the IBBS is a lithium-iron-phosphate battery pack and a
matched charging system to ensure the battery is properly charged
and maintained. The system also includes switching circuitry to
provide a stable source of output power during normal and emergency
operations. The IBBS system also provides signals to other equipment
such as EFIS systems to communicate the operating state of the main
aircraft bus as well as the state of the battery.
p/n 725.0001 REV 3.0
© 2023 TCW Technologies, LLC.
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Summary of Contents for TCW Technologies IBBS-12v-6ah-CRT-V

  • Page 1 The IBBS system also provides signals to other equipment such as EFIS systems to communicate the operating state of the main aircraft bus as well as the state of the battery. p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 2: Table Of Contents

    14 Environmental Qualification Statement pg. 15 Connector Pin-out pg. 16 Mounting plate drawing pg. 17 General Wiring diagram pg. 18 Example Wiring diagrams pg. 19-20 Support and Warranty information pg. 21 p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 3: Limitations

    Check that the total connected load (summed value of all four output wires of the IBBS) is less than the following product ratings: IBBS-12v-6ah-CRT-V 8 amps maximum continuous current 12 amps peak for radio transmissions and transient loads* *(30 seconds max duration) p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.
  • Page 4 Do not deform the unit enclosure by means such as drilling, bending or cutting of the enclosure. Do not open or modify the IBBS unit in any manner. p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.
  • Page 5 These four wires may be paralleled together for redundancy and load current sharing. Use 20 awg wire for each pin. The total combined load for all four pins is 8 amps continuous,12 amps peak. p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.
  • Page 6 Do not use the IBBS system to back-up a dual ignition system having only a single power input. Do not use a single IBBS system to back-up two electronic ignition systems. p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 7: General Product Information

    See above for details on battery charging time. If voltage monitoring of pin 2 of the IBBS is available a peak charging voltage of 14-15 volts will be observed as the battery reaches full capacity. p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 8: Battery Capacity Details

    The internal battery in the IBBS system is replaceable; however, the IBBS product must be returned to TCW Technologies, LLC. for this service. The unit must be replaced with the same Part Number unit or later FAA approved revision. Battery life depends strongly on many factors including operating and storage temperature, number of discharge cycles and depth of discharge.

  • Page 9: Normal Product Operation

    Procedure checklist already established for the aircraft. 2) Ensure the Back-up Master Switch is in the ON position. 3) Land aircraft as soon as practical to resolve the loss of main electrical power. p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 10: Instructions For Continued Airworthiness

    IBBS system shall be confirmed and compared against the back-up endurance required for the connected equipment. As an alternate to these tests, the IBBS unit may be returned to TCW Technologies for a loaded endurance test, contact TCW Technologies LLC. for details.
  • Page 11 IBBS system shall be confirmed and compared against the back-up endurance required for the connected equipment. As an alternate to these tests, the IBBS unit may be returned to TCW Technologies for a loaded endurance test, contact TCW Technologies LLC. for details.
  • Page 12 8) If any of these tests fail, the IBBS system is not functioning properly and corrective action must take place. If the IBBS no longer meets the endurance testing requirement, the back-up battery may need replacement or service. Contact TCW Technologies, LLC. for servicing.

  • Page 13: Specifications

    *minimum input voltage to start a charge cycle is 13.7 volts, this ensures aircraft alternator is running prior to starting a charge cycle **transition voltage is the voltage level on the input (pin 5) that causes the system to provide output power via the internal back-up battery p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 14: Functional Performance, Environmental Testing

    14 volts nominal, 3.3 amps charging, 1.4 amps heating Power Output 12.8 volts nominal, 8 amps continuous Battery capacity 6.0 amp-hrs at 1C rate @ 25 C° Maintenance Perform annual capacity check p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 15: Environmental Qualification Statement

    RF susceptibility Category TT Emission of RF energy Category M lightning environment Category A3H3L3 level 3 lightning direct Category X icing Category X Category A flammability Category X RTCA DO-160(g) B2BBBSC1EYXXFSZB(IX)XXXXAZ(ZC)[TT]MA3H3L3XXAX p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 16: Connector Pin-Out

    Low Volt Warn Pwr +, battery heater PWR + in, charge, sensing Pwr +, pass-thru input Pwr +, pass-thru input Pwr +, pass-thru input Ground Ground Ground Output Output Output Output p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 17: Mounting Plate Drawing

    IBBS unit footprint 11.16in. 2.00in. Mounting holes 0.188" 4 plcs All dimensions in inches IBBS unit height = 3.2” C.G at center of all axis p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 18: General Wiring Diagram

    Ground Low Volt Warn Ground PWR + in, battery heater Output PWR + in, charge, sensing Output Pwr +, pass-thru input Output Pwr +, pass-thru input Output Pwr +, pass-thru input p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 19: Example Wiring Diagrams

    Master Solenoid Example wiring for systems without back-up power inputs NOTE: Use redundant ground pins 9,10,11 Use redundant power inputs 6,7,8 Battery based on load current of connected equipment p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.
  • Page 20 Master Solenoid Example wiring for systems without back-up power inputs NOTE: Use redundant ground pins 9,10,11 Use redundant power inputs 6,7,8 Battery based on load current of connected equipment p/n 725.0001 REV 3.0 © 2023 TCW Technologies, LLC.

  • Page 21: Support And Warranty Information

    TCW Technologies, LLC. During the first 12 months from the date of purchase and subject to the conditions hereinafter set forth, TCW Technologies, LLC. (TCW) will repair or replace to the original user or consumer any portion of your new TCW product which proves defective due to defective materials or workmanship of TCW.

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