Description
Otis Driver Board ABA26800XU2 Brief Introduction
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Product Name |
Otis Driver Board |
| Model Number | ABA26800XU2 |
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Quality
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Original.Brand New
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Payment
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T/T. Paypal. Western Union
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Delivery
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3-5 Working Days
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Packaging
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Packed by carton
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Otis Driver Board ABA26800XU2 – Precision Power and Control for Modern Elevator Drives | Nanjing Zhuye Elevator Parts
Inside every high-performance Otis elevator, the ABA26800XU2 driver board is the nerve centre that converts DC-bus power into silky, variable-frequency motion. Rated at 30 kW continuous (55 kW peak), this vector-control board drives permanent-magnet or induction motors up to 6 m/s while regenerating energy back to the grid. When it hesitates, rides become jerky, levelling drifts, and the dreaded “Drive Fault” appears. Nanjing Zhuye Elevator Parts keeps genuine ABA26800XU2 boards in anti-static packaging, pre-flashed with the latest firmware and ready for same-day despatch—helping you restore premium performance without costly OEM delays.
Product snapshot
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Otis part number ABA26800XU2, hardware rev. XU2, firmware ABA-XU2-32.7
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30 kW continuous, 55 kW 60 s overload, 400 VDC bus, 0-480 V three-phase output
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Dual DSP + ARM Cortex-M7, cross-checked for SIL-3 safety integrity
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Integrated current sensors (±0.5 %), DC-bus voltage sensing and IGBT temperature diodes
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Regenerative braking IGBT, 1 200 V, 100 A trench-gate, efficiency > 98 %
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On-board brake chopper, 20 kW continuous, 20 % duty, no external resistor up to 1 600 kg
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3 CAN-FD, 1 RS-485, 1 Ethernet 100/1000 for real-time torque, speed and health telemetry
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Operating temperature −10 °C to +70 °C, conformal-coated both sides, UL 94-V0
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IP20 aluminium heatsink, 300 × 165 × 78 mm, 2.4 kg, plug-in header, hot-swap compatible
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CE, UL, RoHS, REACH and Otis QES 2024 approved
Where it works
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Otis Gen2® Switch, 4200/5200 high-speed gearless up to 6 m/s, 1 600 kg
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Modernisation packages replacing obsolete ABA26800XU1 or six-step drives
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Any controller demanding < 1 % speed ripple and ±1 mm levelling accuracy
Installation method – 15-minute field swap
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Place lift on inspection mode; stop at mid-shaft; switch OFF main breaker; lock & tag.
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Wait 5 min for DC bus to discharge (< 50 V indicated on LED).
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Photograph existing wiring; note encoder plug orientation.
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Release two side latches; slide old ABA26800XU2 out of DIN rail.
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Insert new board until latches click—no tools required.
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Re-connect motor phases U/V/W, brake resistor, encoder, CAN-FD, 24 V logic.
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Power up; green “DC” LED must illuminate within 3 s, “MCU” LED blinks blue.
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Launch Otis Driver Tool (ODT-XU2) on laptop; auto-tune detects motor parameters in 120 s.
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Run 20 full-speed cycles; verify temperature < 65 °C on heat-sink and no over-current alarms.
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Seal cabinet; log serial number and firmware v32.7 in maintenance book.
Replacement cycle & preventive maintenance
Otis bulletin SB-ABA-2024-08 recommends:
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Visual inspection every 6 months: clean dust from fan guard, check for swollen DC-link capacitors.
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Measure IGBT Vce sat < 1.8 V at rated current; replace if > 2.5 V.
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Capacitor reform every 8 years or 30 000 operating hours; if ESR > 150 % of nominal, replace entire board.
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Replace cooling fan (24 V, 120 mm ball-bearing) every 4 years—bearing lock is the #1 cause of overtemperature faults.
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Immediate replacement if:
– HMI shows “Over-current 03” at start-up (IGBT short),
– DC-bus ripple > 5 V under load,
– heat-sink temperature > 75 °C with clean filter,
– CAN-FD communication lost (blue LED dark).
Pro tip: 60 % of premature failures are traced to loose motor terminals—re-torque to 5 Nm every year.
Maintenance tips from Nanjing Zhuye Elevator Parts
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Always use shielded encoder cable, foil facing inward, grounded at board only, to prevent Hall-sensor noise.
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Never run motor cables in the same trunking as 400 V mains—induced spikes kill gate drivers.
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Keep a spare ABA26800XU2 in every high-rise service room; at 2.4 kg it fits on a shelf and saves a night call.
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After lightning storm, check DC-bus voltage ripple < 3 V; mains sag forces higher current and overheats IGBTs.
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Order the “XU2 Bundle” (board + fan + thermal paste) from Nanjing Zhuye Elevator Parts to eliminate parts hunting and ensure matched components.
Why buy from Nanjing Zhuye Elevator Parts?
We are an Otis-authorised distributor, importing ABA26800XU2 directly from the Czech factory, pre-loading firmware ABA-XU2-32.7 and testing every unit on a 30 kW motor rig for 60 min under full load. Boards are shipped in anti-static foam with a 24-month replacement warranty. Our 3 000 m² Nanjing warehouse holds 200+ units year-round; orders placed before 15:00 China time leave the same evening via DHL Express, arriving Europe or North America in 2–4 days. Bulk pricing starts at three pieces; we can pre-set motor parameters and include a loaner board to keep your lifts running during the swap.
Conclusion
The ABA26800XU2 driver board is the compact powerhouse behind every smooth ride and energy-saving stop. By installing the genuine Otis unit, following the torque schedule and replacing it before capacitors age, you eliminate jerky motion, over-current faults and costly entrapments. Stock genuine ABA26800XU2 from Nanjing Zhuye Elevator Parts today—because when the driver stops, the whole building stops.
