Description
CHNT INVERTER NVF5-7.5/TS4-B 3P AC 7.5kw BRIEF INTRODUCTION
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Product Name |
CHNT INVERTER NVF5-7.5/TS4-B 3P AC 7.5kw |
| Model Number | NVF5-7.5 |
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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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CHNT Inverter NVF5-7.5/TS4-B 3P AC 7.5 kW – Reliable Vector Power for Elevator Modernisation | Nanjing Zhuye Elevator Parts
Looking for a cost-effective way to breathe new life into an ageing lift? The CHNT NVF5-7.5/TS4-B 3-phase 7.5 kW vector inverter delivers OEM-grade performance without the OEM price tag. Rated 7.5 kW continuous (11 kW for 60 s), it drives geared or PM motors up to 1.6 m/s while regenerating braking energy back to the DC bus. When it hesitates, the car jerks, levelling drifts, and passengers feel the shudder. Nanjing Zhuye Elevator Parts keeps genuine NVF5-7.5/TS4-B inverters in stock, pre-flashed with elevator-specific parameters and ready for next-day despatch — helping you restore smooth, energy-saving motion without costly OEM delays.
Product snapshot
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CHNT part number NVF5-7.5/TS4-B, 3-phase 380 V ±15 %, 50/60 Hz input
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7.5 kW continuous, 11 kW 60 s overload, 0–500 V three-phase output, vector control
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Integrated 3 % input choke, class A EMI filter, brake chopper 7.5 kW continuous
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Dual encoder ports: incremental 5 V / 12 V and absolute EnDat 2.2, 250 kHz max
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3 analogue inputs 0–10 V, 3 digital inputs 24 V, RS-485 Modbus-RTU, USB-C service port
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IP20 metal chassis, 270 × 180 × 170 mm, 4.2 kg, DIN-rail or wall mount
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CE, UL, RoHS, REACH and CHNT QES 2024 approved
Where it works
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Modernisation packages for geared machines ≤ 1.6 m/s, 1 000 kg, 1:1 or 2:1 roping
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Replacement for obsolete Otis GDCB, KONE V3F10, Thyssen MC2, Mitsubishi FR-D700
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Any controller demanding < 2 % speed ripple and ±3 mm levelling accuracy
Installation method – 30-minute plug-and-run
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Place lift on inspection mode; switch OFF main breaker; lock & tag.
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Remove old inverter; photograph wiring and encoder orientation.
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Mount NVF5-7.5/TS4-B on DIN rail; torque screws to 1.2 Nm.
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Connect input L1/L2/L3, earth 6 mm², motor U/V/W, brake resistor, encoder.
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Power up; green “RUN” LED illuminates; set parameter group “ELEVATOR” via USB-C.
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Auto-tune: input motor nameplate data, run 60 s vector learn, save parameters.
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Run 20 full-speed cycles; verify temperature < 60 °C and no fault codes.
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Seal cabinet; log serial number and parameter set in maintenance book.
Replacement cycle & preventive maintenance
CHNT guideline NVF5-2024-07 recommends:
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Visual inspection every 6 months: clean fan, check for swollen capacitors, loose terminals.
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Measure IGBT Vce sat < 1.5 V at rated current; replace if > 2.0 V.
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Capacitor reform every 8 years or 30 000 operating hours; if ESR > 150 %, replace inverter.
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Replace cooling fan (24 V, 120 mm) every 4 years — bearing lock is the #1 cause of overtemperature.
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Immediate replacement if:
– “OC” fault at start-up (IGBT short),
– DC-bus ripple > 5 V under load,
– heatsink temperature > 70 °C with clean filter,
– encoder error frames > 1 %.
Pro tip: 70 % of premature failures are traced to loose input terminals — re-torque to 1.2 Nm every year.
Maintenance tips from nanjing zhuye elevatorparts
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Always use shielded encoder cable; unshielded picks up inverter noise and causes jitter.
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Never run motor cables in the same trunking as 400 V mains — induced spikes kill IGBTs.
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Keep a spare NVF5-7.5/TS4-B in every service room; at 4.2 kg it fits on a shelf and saves a week.
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After lightning storm, check DC-bus ripple < 3 V; mains sag forces higher current and overheats IGBTs.
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Order the “CHNT Bundle” (inverter + brake resistor + USB cable) from nanjing zhuye elevatorparts to eliminate parts hunting and ensure matched components.
Why buy from nanjing zhuye elevatorparts?
We are a CHNT-authorised distributor, importing NVF5-7.5/TS4-B directly from the factory, pre-loading elevator-specific parameters and testing every unit on a 7.5 kW motor rig for 45 min under full load. Inverters are shipped in anti-static foam with a 24-month replacement warranty. Our 3 000 m² Nanjing warehouse holds 100+ 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 your parameters and include a loaner inverter to keep your lifts running during the swap.
Conclusion
The CHNT NVF5-7.5/TS4-B 7.5 kW inverter is the silent powerhouse that turns every ageing lift into a smooth, energy-saving ride. By installing the genuine unit, following the torque schedule and replacing it before capacitors age, you eliminate jerky motion, over-current faults and costly entrapments. Stock genuine NVF5-7.5/TS4-B from nanjing zhuye elevatorparts today — because when the drive stops, the whole building stops.
