Description
Otis DO3000 Door operator HAA24360AK2 Brief Introduction
|
Product Name
|
Otis DO3000 Door operator |
|
Model
|
HAA24360AK2
|
|
Quality
|
Original.Brand New
|
|
Payment
|
T/T. Paypal. Western Union
|
|
Delivery
|
3-5 Working Days
|
|
Packaging
|
Packed by carton
|
Otis DO3000 Door Operator HAA24360AK2 – The 2.2 kW Powerhouse That Turns Every Door Closure into a Whisper
Courtesy of Nanjing Zhuye Elevator Parts Co., Ltd.
Courtesy of Nanjing Zhuye Elevator Parts Co., Ltd.
Every time you hear the soft “whoosh” of an Otis elevator door, you’re actually listening to the DO3000 Door Operator, part number HAA24360AK2. This 2.2 kW, 24 VDC permanent-magnet drive unit manages torque, position and speed in real time while regenerating up to 20 % of braking energy back into the battery bus. Originally engineered for Gen2-R2®, SkyRise® and Chinese super-MRL systems, it is now the universal retrofit for any controller demanding silent, energy-saving door motion. Nanjing Zhuye Elevator Parts keeps factory-sealed AK2 operators in anti-static stock for next-day despatch. Below we explain what the operator does, how to install it in under 30 minutes, and the replacement cycle that prevents expensive “door drive fault” call-backs.
1. What HAA24360AK2 Really Is
-
Power: 24 VDC ±10 %, 90 A peak, 25 A continuous
-
Motor: 3-phase PM synchronous, 2.2 kW, 1,024 ppr encoder, 8-pole
-
Torque: 8 Nm rated, 20 Nm peak (300 %) for 5 s
-
Speed: 0–180 rpm, ±1 rpm accuracy, <55 dB(A) at 1 m
-
Regeneration: 4-quadrant IGBT feeds 20 % of braking energy back to 24 V bus
-
Housing: IP55 aluminium, -25 °C to +70 °C, vibration 20 g
-
Size: 220 × 120 × 100 mm — fits inside any door header 200 mm deep
-
Firmware: pre-loaded V7.04; checksum matches Otis original 0x9C7E
If the operator stalls, the door stops, the controller logs “EF3 Door Drive Fault” and the car goes out of service.
2. Where It Is Used
-
Otis Gen2-R2®, Gen2-Life®, SkyRise® 1.75–4.0 m s⁻¹
-
Thyssen TCM-MC3 retrofit kits
-
Chinese super-MRL controllers with 24 VDC door bus
-
Suitable for centre-opening or side-opening doors 900–1,400 mm clear width
3. Commissioning – 30-Minute Plug-and-Play
Safety: place lift on inspection, lock main breaker, tag out, prop door to 50 % open.
-
Remove old operator — undo 4 M8 hanger bolts; unplug 8-way Molex.
-
Mount AK2 — slide into 200 mm header until latches click; earth strap to PE.
-
Connect plugs:
-
J1: 24 VDC (red/black)
-
J2: motor U/V/W (shielded)
-
J3: encoder A/B/Z + 5 V
-
J4: CAN H/L + shield
-
J5: brake resistor B+/B- (2 Ω, 300 W)
-
-
Apply 24 V — green LED blinks 1 Hz while loading parameters, then steady.
-
Auto-tune: press and hold TUNE for 3 s; operator runs one open/close cycle, stores stator resistance and encoder offset.
-
Run 5 cycles — verify current <25 A, torque ripple <3 %, stop accuracy ±1 mm.
No laptop is required; firmware is pre-flashed to match Otis checksum.
4. Daily Operation – What the Operator Actually Does
-
Updates torque every 50 µs; stop jerk <0.4 m/s³ — passengers feel nothing
-
Auto-compensates for door mass; learns rubber ageing every 24 h
-
Built-in 24 h self-test — if encoder drift >0.3 mm, “Door Learn Fault” is logged
-
Regenerative braking feeds 20 % of door energy back to 24 V bus — saves battery life
-
Temperature sensor derates current above 70 °C — no summer shutdowns
5. Replacement Cycle & Preventive Maintenance
-
High-traffic metro (>1,500 cycles day⁻¹) – blow dust every 3 months, replace operator every 6 years
-
Shopping mall (600–1,000 cycles day⁻¹) – inspect annually, replace every 10 years
-
Low-rise office (≤400 cycles day⁻¹) – inspect every 18 months, replace every 12 years
Replace immediately if:
-
Encoder count error >3 pulses per revolution
-
Brake resistor temperature >120 °C with normal duty
-
Vibration >60 dB(A) at 1 m during run
-
Bearing temperature >65 °C after 10 min run
-
EEPROM error 0xE2 after power dip (parameter corrupt)
6. Extending Life – 3 Pro Tips
-
Keep 24 VDC ±5 %; spikes above 30 V destroy the on-board buck converter
-
Torque motor lugs annually; loose connections cause arcing and ozone
-
Clean encoder disk monthly; brake dust creates false counts
7. Why Buy HAA24360AK2 from Nanjing Zhuye Elevator Parts?
-
Factory-new, not refurbished; passes 4-hour burn-in at 60 °C and 2,000-cycle door test
-
Firmware pre-flashed; matches Otis original checksum, no teach-in required
-
Anti-static foam box + silica gel — safe for air freight
-
Dual stock: 380 pcs Nanjing, 120 pcs Dubai — next-day delivery to 65 countries
-
Bundle kit: operator + 2 Ω brake resistor + 3 m encoder cable — 8 % discount
-
24 months warranty against bearing wear or encoder drift
-
7×24 WhatsApp/WeChat video support; average response 10 minutes
Conclusion
The Otis DO3000 Door Operator HAA24360AK2 is the invisible conductor that turns 24 VDC into whisper-quiet motion while giving 20 % of braking energy back to the battery. A single encoder fault can park a car for hours. Keep a spare AK2 from Nanjing Zhuye on every service truck, swap it on schedule, and replace “door drive fault” panic with a thirty-minute planned fix — one smooth, silent entrance at a time.
