Description
Otis OMA4351AMZ Escalator Brake Board TRA510HA PCB Brief Introduction
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Product Name |
Otis O Escalator Brake Board |
| Model Number | OMA4351AMZ
TRA510HA |
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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 OMA4351AMZ Escalator Brake Board TRA510HA PCB – Vector Braking Intelligence for 510 NCE Escalators | Nanjing Zhuye Elevator Parts
Inside every Otis 510 NCE escalator, the TRA510HA PCB (part of OMA4351AMZ) is the “vector brain” that turns DC-bus energy into silky brake torque and absolute safety. This 45 kW IGBT module drives the main motor while controlling the service and emergency brakes, streaming real-time current, temperature and EnDat feedback to the XECB CPU. When it hesitates, steps judder, brakes drag — or the whole truss stops. Nanjing Zhuye Elevator Parts keeps genuine TRA510HA boards in anti-static packaging, pre-flashed with the latest firmware and ready for same-day despatch — helping you restore silky, safe motion without costly OEM delays.
Product snapshot
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Otis part number TRA510HA (within OMA4351AMZ), hardware rev. HA5, firmware TRA-45.11
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45 kW continuous, 80 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, 150 A trench-gate, efficiency > 98 %
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On-board brake chopper, 30 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, 400 × 220 × 78 mm, 2.8 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 510 NCE escalators up to 12 m rise, 1.0 m/s, 1 000 mm step width
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Modernisation packages replacing obsolete TRA510GZ or relay-based brake contactors
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Any controller expecting SIL-3 brake feedback and < 5 ms switch-off time
Installation method – 15-minute field swap
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Place escalator on inspection mode; stop at upper landing; 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 CAN-FD and brake plug orientation.
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Release two side latches; slide old TRA510HA out of DIN rail.
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Insert new PCB until latches click — no tools required.
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Re-connect 400 V DC bus, motor 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 TRA Tool (OTRA-45) on laptop; auto-tune detects motor parameters in 120 s.
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Run full-speed up/down 10 cycles; verify temperature < 65 °C on heatsink and no over-current alarms.
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Seal cabinet; log serial number and firmware v45.11 in maintenance book.
Replacement cycle & preventive maintenance
Otis bulletin SB-TRA-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,
– heatsink 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 elevatorparts
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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 TRA510HA in every high-rise store; at 2.8 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 “TRA Bundle” (board + fan + thermal paste) from nanjing zhuye elevatorparts to eliminate parts hunting and ensure matched components.
Why buy from nanjing zhuye elevatorparts?
We are an Otis-authorised distributor, importing TRA510HA directly from the Czech factory, pre-loading firmware TRA-45.11 and testing every unit on a 45 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 escalators braking during the swap.
Conclusion
The OMA4351AMZ Escalator Brake Board TRA510HA PCB is the silent powerhouse behind every smooth step and safe 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 passenger entrapments. Stock genuine TRA510HA from nanjing zhuye elevatorparts today — because when the brake board stops, the whole escalator stops.
