Description

1. Part-number breakdown FAXI100S = FAXI Series 100, 10 kW @ 1 550 rpm, 62 N·m rated torque, 28-pole, 400 VAC, IP54, –25 °C…+70 °C
   Stator: H-class insulation (180 °C), vacuum-pressure impregnated, temperature rise <105 K
   Rotor: sintered NdFeB, stainless band retention rated 25 000 rpm burst, flux density 1.2 T @ 20 °C
   Bearings: sealed SKF 6314-2RS1, grease life 40 000 h @ 75 °C
   Encoder: 2 048-ppr sine-cosine + zero pulse, IP54 when mated
   Brake: twin-disk 110 VDC, 2 × 1 000 N static, manual release lever, micro-switch verified
   Frame: cast iron GG-25, torsion-proof foot pattern 450 × 200 mm, mass 235 kg
2. Safety first—lock-out & verify The machine remains on the 400 VAC rail and 110 VDC brake circuit. Lock the main disconnect, hang a lock-out tag and wait 5 min for the DC bus to fall below 5 V. Confirm zero energy with a CAT-III meter before touching any terminal.
3. Mechanical mounting—keep it centred Use four M24 foundation bolts, grade 12.9, torque 400 N·m.
   Maintain 200 mm clearance around the hand-wheel; every 10 °C rise halves bearing grease life.
   NYE supplies a free lifting beam (NY-BEAM-FAXI100S) and anti-vibration pads (NY-AVP-FAXI100) to reduce structure-borne noise 4 dB(A).
4. Alignment & levelling a) String line from car to counter-weight sheave; lateral offset must be <0.3 mm.
   b) Insert 0.2 mm feeler between brake hub and string; adjust shim until parallel within 0.2 mm/m.
   c) Torque M24 bolts in cross-pattern; re-check—beam compression often shifts machine 0.2 mm.
5. Encoder & auto-phasing Connect shielded pair to CN1; shield grounded at controller end only.
   Run controller “PM learn” routine: rotate machine 360° by hand-wheel at 20 rpm; controller records sine-cosine offset.
   If offset varies >±1° between runs, coupling is loose—replace elastic insert (NY-COU-14-14).
6. Brake set-up Air gap factory-set 0.20 mm; check at three points with feeler. Gap >0.35 mm reduces holding torque 25 % and triggers “Brake Release” fault. Adjust hex nuts 1/8 turn clockwise = 0.05 mm reduction. Micro-switch must click 0.3 mm before pads contact disk; verify with ohmmeter.
7. Lubrication & bearing life Bearings are sealed-for-life (SKF LGHP2 grease), grease life 40 000 h @ 75 °C.
   Predicted life: @ 70 °C housing (1.6 m/s, 600 trips/day) – 40 000 h ≈ 5.5 years. @ 55 °C housing (1.0 m/s, 300 trips/day) – 80 000 h ≈ 11 years. Annual IR scan: bearing housing should be <65 °C; >75 °C schedules bearing change.
8. Magnet degradation check NdFeB loses 0.9 % flux per 10 °C above 80 °C. Back-EMF test: Spin machine at 200 rpm by hand-wheel. Measure line-line voltage; compare to nameplate ±3 %.

3 % drop indicates partial demagnetisation—order replacement rotor (NY-ROTOR-FAXI100S) or full machine.

9. Replacement cycle summary Light traffic (residence, 300 trips/day) – bearings ≈ 15 years, rotor ≈ 25 years, full machine ≈ 20 years; inspect every 3 years. Medium traffic (office, 600 trips/day) – bearings every 10 years, rotor every 18 years, full machine every 15 years; inspect every 2 years. Heavy traffic (mall/metro, 1 200 trips/day) – bearings every 6 years, rotor every 12 years, full machine every 10 years; inspect every 6 months. Always replace encoder coupling and brake discs when bearings are changed—labour overlap saves 1 h.
10. Rapid swap (downtime < 4 h) a) Secure car on rail clamps, lock-out power. b) Sling old machine, remove foundation bolts, lower 235 kg to pallet. c) Offer new NYE FAXI100S, align with existing shim. d) Re-rope, tension, run encoder learn and brake gap check. e) Full-load dynamic test: 125 % rated load, 1.6 m/s, vibration <1.2 mm/s RMS (ISO 18738). f) Log serial number, cycle counter, brake gap; return old unit for core refund.
11. Recycling & sustainability Nanjing Zhuye pays USD 300 core credit per FAXI100S. Stator copper is remelted 99.95 % pure, rotor magnets re-sintered, steel frame shot-blasted and reused for counter-weights. One recycled machine saves 1.4 t CO₂—equal to the elevator’s standby consumption for 3 months.