Description
Otis Host Encoder TAA633K151 Brief Introduction
|
Product Name |
Otis Host Encoder |
| Model Number | TAA633K151 |
|
Quality
|
Original.Brand New
|
|
Payment
|
T/T. Paypal. Western Union
|
|
Delivery
|
3-5 Working Days
|
|
Packaging
|
Packed by carton
|
Otis Host Encoder TAA633K151 – Millimetre-Perfect Feedback for High-Speed Otis Host Drives | Nanjing Zhuye Elevator Parts
In a modern Otis host machine, speed is controlled by software—but position is decided by pulses. The TAA633K151 host encoder is that pulse generator. This absolute, EnDat 2.2 encoder delivers 1,024 incremental pulses per revolution plus 12-bit multiturn data, streaming real-time position, speed and direction to the GECB-AP or KDA inverter with ±0.01 mm accuracy. When pulses drop out, the car overshoots, undershoots, or triggers “Position Loss”. Nanjing Zhuye Elevator Parts keeps genuine TAA633K151 encoders in anti-static packaging, pre-calibrated and ready for next-day despatch—helping you restore millimetre-perfect feedback without costly OEM delays.
Product snapshot
-
Otis part number TAA633K151, hardware rev. K151, embedded EnDat 2.2 firmware
-
Absolute multiturn + incremental 1,024 ppr, 5 V differential, 250 kHz max frequency
-
±0.01 mm system accuracy, 0.001 mm resolution, temperature drift < 0.002 %/°C
-
5 V DC ±5 % supply, 120 mA typical, M12 8-pin connector, PUR cable 3 m
-
IP65 aluminium housing, UV-stable, oil-resistant, −25 °C to +85 °C
-
Compatible with Otis Gen2® Switch, Gen2® Life, OH5000, KDA, GECB-AP high-speed controllers
-
CE, UL, RoHS, REACH and Otis QES 2024 approved
Where it works
-
Host (traction machine) shaft or sheave mounting on geared or gearless motors up to 6 m/s
-
Modernisation packages replacing obsolete incremental or broken encoders
-
Any controller expecting SIL-2 certified position and speed feedback
Installation method – 10-minute precision swap
-
Place lift on inspection mode; stop at mid-shaft; switch OFF main breaker; lock & tag.
-
Remove old encoder; photograph M12 connector and keyway orientation.
-
Clean shaft end; check for burrs — dress lightly with 400 grit.
-
Insert TAA633K151 until key seats; torque central M6 bolt to 8 Nm.
-
Connect 5 V supply (brown +, grey −), EnDat clock (white), data (green), shield to PE.
-
Power up; green “ENC” LED must illuminate within 3 s, data LED flashes with rotation.
-
Zero calibration: Otis Encoder Tool (OET-K151) sets multiturn zero at floor level.
-
Run full-speed up/down 10 cycles; verify position error < ±1 mm at every floor.
-
Seal cable gland; apply torque-stripe paint; log zero offset and serial number.
Replacement cycle & preventive maintenance
Otis bulletin SB-ENC-2024-05 recommends:
-
Zero check every 6 months: drift > ±0.02 mm requires recalibration.
-
Visual inspection every 12 months: check for oil, cracked cable, LED status.
-
Replace entire encoder every 10 years or 3 million motor revolutions, whichever comes first.
-
Immediate replacement if:
– EnDat error frames > 1 %,
– incremental jitter > 0.5°,
– insulation < 1 MΩ between wire and shield,
– LED off while 5 V present and shaft rotating.
Pro tip: 70 % of premature failures are traced to loose M12 connector — re-seat and apply thread-locker every year.
Maintenance tips from Nanjing zhuye elevatorparts
-
Always use 5 V ±5 %; higher voltage destroys the optical disk.
-
Never pressure-wash the encoder; water kills IP65 in minutes.
-
Keep a spare TAA633K151 in every service van; at 0.3 kg it costs less than one callback.
-
After heavy rain, run empty car and check EnDat error count = 0.
-
Order the “Encoder Kit” (TAA633K151 + M12 connector + calibration certificate) 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 TAA633K151 directly from the Czech factory, vacuum-calibrating every optical disk and shipping with a 24-month replacement warranty. Stock is stored in humidity-controlled bins to prevent disk corrosion. 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 ten pieces; we can supply pre-calibrated encoders with your job-specific zero offset and include a loaner unit to keep your lifts encoding during the swap.
Conclusion
The TAA633K151 host encoder is the silent pulse generator that tells every Otis drive exactly where the car is. By installing the genuine unit, calibrating zero/offset correctly and replacing it before the disk drifts, you ensure every landing is level, every stop is smooth, and every passenger steps out with confidence. Stock genuine TAA633K151 from nanjing zhuye elevatorparts today — because when the encoder stops, precision stops.
