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  • VFD485VP43AFTHA
  • VFD485VP43AFTHA-1
  • VFD485VP43AFTHA-2
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VFD485VP43AFTHA

Delta VFD485VP43AFTHA | 3-Phase 460V 91A Drive

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  • Manufacturer: Delta

  • Product No.: VFD485VP43AFTHA

  • Product Type: AC Drive

  • Product Origin: CN

  • Payment:T/T, Western Union

  • Weight: 8000g

  • Shipping port: Xiamen

  • Warranty: 12 months

30 günlük yzyna gaýtaryş syýasaty · 12 aýlyk kepillik
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Description

Product Overview

The Delta VFD485VP43AFTHA is a high-capacity Variable Frequency Drive (VFD) engineered for heavy-duty industrial fluid control. With a robust output of 45kW (60HP), this drive excels in managing large-scale HVAC systems, water treatment pumps, and industrial cooling towers. This specific "THA" variant incorporates enhanced thermal management and an integrated DC reactor to suppress harmonic distortion, ensuring compliance with strict power quality standards. Its advanced Sensorless Vector Control (SVC) provides the perfect balance between high starting torque and energy-efficient cruise speeds. 

Technical Configuration

Model Specification Logic

  • Power Rating (485): Delivers a rated output current of 91 Amps, supporting motors up to 45kW (60HP).
  • Series (VP): Specialized for variable torque loads, offering a multi-pump control mode and fire mode for emergency fan operation.
  • Voltage Class (43): 460V 3-Phase input (compatible with 380V–480V ±10% utility grids).
  • Filter & Reactor (AF): Includes a built-in EMC filter (Class A) and an internal DC reactor to reduce THDi (Total Harmonic Distortion).
  • Frame Configuration (THA): Features a reinforced chassis with an independent cooling duct design to isolate power components from dust.

Technical Specifications

Parameter Data Value Details
Rated Output Current 91 A (Normal Duty)
Applicable Motor Output 45 kW / 60 HP
Input Current 86 A (3-Phase AC)
Braking Torque Approx. 20% (Standard); up to 125% with external unit
Starting Torque 150% at 0.5Hz (SVC mode)
Frequency Stability Digital: ±0.01%; Analog: ±0.2%
Efficiency ≥ 97.5% at rated load
Enclosure Rating IP20 (Standard) / NEMA 1 Optional

Installation & Maintenance Guide

High-Power Engineering Standards

Power Quality: The integrated DC reactor in the VFD485VP43AFTHA significantly reduces harmonics. No additional line reactor is required unless the power source impedance is less than 3%. This reduces both installation footprint and overall system cost.

Cooling Architecture: This model utilizes an isolated cooling duct. When mounting in a cabinet, ensure the exhaust air is vented directly out of the enclosure to prevent internal heat buildup. The drive’s fans are field-replaceable to ensure long-term uptime.

Torque Terminal Torque: For the 91A output terminals, use M6 or M8 ring terminals with a tightening torque of 4.0-5.0 N-m to prevent hot spots caused by loose electrical connections.

Engineering Advantages

The VFD485VP43AFTHA features an Advanced Multi-Pump Control logic, capable of managing up to 4 pumps simultaneously (1 master fixed speed + 3 auxiliary). It includes a built-in RS-485 interface supporting Modbus RTU/ASCII with speeds up to 38.4kbps. Its 4-layer conformal coating protects the 45kW power bridge and control logic from moisture and chemical vapors, making it suitable for wastewater treatment facilities and chemical processing plants.

Technical FAQs

Q1: What is the maximum carrier frequency for this 45kW model?
A1: The carrier frequency can be set between 2kHz and 10kHz. For a 45kW drive, 4kHz is the recommended default to balance switching losses and acoustic motor noise.

Q2: Can I run this drive on a single-phase supply for testing?
A2: No. High-power VP series drives require a balanced 3-phase input to prevent phase-loss protection trips and potential damage to the input rectifier bridge.

Q3: How does the "Fire Mode" work in this drive?
A3: When activated via a digital input, the VFD ignores non-critical alarms and runs at a preset frequency to ensure smoke extraction or water pressure is maintained during emergency events.

🏷️ Tags: AC Drive
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Scalar (V/f)

Vector

AC-powered
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