Chint NVF2G-5.5/TS4 converter

Chint NVF2G-5.5/TS4 is a high-performance general-purpose (constant torque) frequency converter, specially designed for industrial drive control. It is compatible with 5.5kW three-phase asynchronous motors, supports three-phase 380V (±15%) input, and has an output frequency range of 0~400Hz. The following is a detailed analysis of key information:

1. コア技術パラメータChint NVF2G1.5/PS4 frequency converter
2. Control Performance

Sensorless Vector Control: It can output 150% 定格トルク（0.5Hz時）, suitable for scenarios such as lifting and conveying that require high starting torque.

過負荷容量: 150% rated current for 1 minute, capable of handling short-term impact loads.

Speed Regulation Accuracy: Speed fluctuation ≤ ±0.5% under sensorless vector control, and V/F control accuracy ≤ ±1%.

2. Input and Output CharacteristicsChint converters (NVF2G-18.5/TS4 または NVF2G-18.5/PS4)

電圧範囲: 380V±15% (つまり, 323~437V), adapting to environments with large grid fluctuations.

周波数範囲: Output frequency 0~400Hz (0~120Hz for fan and pump type), supporting multi-speed operation and PID closed-loop control.

Brake Unit: Models below 22kW are equipped with a built-in brake unit as standard. The 5.5kW model falls into this range, so no additional selection is required.

3. Interfaces and Functions

Digital Input: 6 programmable terminals, supporting functions such as forward/reverse rotation, jogging, and fault reset.

Analog Input/Output: 2 アナログ入力 (0~10V/0/4~20mA) そして 2 analog outputs, which can be connected to sensors for precise control.

通信プロトコル: 標準RS485インターフェース, supporting Modbus protocol, facilitating remote monitoring and networking.

1. アプリケーションシナリオ
2. 産業分野

Constant Torque Loads: Such as cranes, conveyors, injection molding machines, 等. Precise speed regulation and energy saving can be achieved through vector control.

Fan and Pump Loads: Although it is a general-purpose type, it can adapt to light-load scenarios through V/F control and automatically optimize energy consumption.

2. Adaptability to Harsh Environments

Protection Technology: Adopting three-proof paint spraying, it can resist dust, oil stains, and mild corrosive gases.

幅広い温度での動作: No derating at ambient temperature -10~+45℃; for 45~50℃, derate by 1% for each 1℃ increase.

Ⅲ. 設置とメンテナンス

1. 環境要件

Humidity and Altitude: Relative humidity ≤ 90% 結露なし; full power operation below 1000m altitude; for each 1000m increase above 1000m, derate by 10%.

Vibration and Heat Dissipation: Avoid installation in places with vibration > 5.8m/s². It is recommended to install vertically and reserve 120mm heat dissipation space.

2. Maintenance Points

Replacement of易损件: Cooling fans and electrolytic capacitors are the main易损件, and it is recommended to check them every 2~3 years.

Fault Diagnosis: Built-in more than 20 protection functions (overcurrent, overheating, phase loss, 等), and the LED panel displays fault codes in real-time.

1. 北米市場への適応性
2. 認証とコンプライアンス

– Although UL/CSA certification is not clearly marked, some Chint products have passed third-party tests. It is recommended to contact North American technical support to confirm the compliance of specific models.

Power Grid Compatibility: The input voltage range covers the North American 380V standard and can be directly connected to the industrial power grid.

1. Price and Procurement
2. Reference Price: According to the platform of Whatsapp: 0086-13811255435, the price of NVF2G-5.5/TS4 is approximately 1400~2000 RMB, which varies depending on channels and quantities.
3. North American Procurement: It is recommended to obtain quotations through Chint’s authorized North American distributors. Some models may need to be pre-ordered, with a delivery cycle of 2~8 weeks.
4. Alternative Solutions and Upgrades

If higher performance or compliance with North American standards is required, Chint’s NVF3 series or NVF5 series frequency converters can be considered, which support higher protection levels (IP55) and more communication protocols (such as Profibus). The specific alternative models need to be selected according to application requirements.

まとめ

NVF2G-5.5/TS4 has become a mainstream choice in the industrial drive field due to its high cost performance, wide voltage adaptability, and strong overload capacity. For North American users, although certification details need to be confirmed, Chint’s global service network and local support can provide reliable guarantees. It is recommended to communicate with distributors according to specific application scenarios to obtain customized solutions.

The detailed technical parameters of Chint NVF2G-5.5/TS4 frequency converter are as follows:

1. 電気的性能パラメータ
2. 入力特性

電圧範囲: Three-phase 380V±15% (323~437V), supporting North American industrial power grids.

周波数範囲: 47~63Hz, adapting to global mainstream power grid fluctuations.

Rated Input Current: 4あ (compatible with 5.5kW motor).

力率: Typical value ≥ 0.95 (optimized by built-in reactor).

2. 出力特性

Rated Output Power: 5.5kW, compatible with 4-pole three-phase asynchronous motors.

出力電流: 13あ (continuous operation), with overload capacity of 150% rated current for 1 minute.

周波数範囲: 0~400Hz (general-purpose type), supporting multi-speed and PID closed-loop control.

出力電圧: 0~rated input voltage, with automatic voltage regulation (AVR) function to stabilize output.

1. Control and Drive Parameters
2. Control Modes

Sensorless Vector Control: Outputs 150% 定格トルク（0.5Hz時）, with speed fluctuation ≤ ±0.5%.

V/F Control: Supports 5 types of V/F curves, with a speed regulation ratio of 1:50 and speed accuracy ≤ ±1%.

通信プロトコル: 標準RS485インターフェース, supporting Modbus RTU protocol, with baud rate optional 2400~115200bps.

2. Dynamic Performance

Starting Torque: 150% rated torque at 0.5Hz under sensorless vector control, supporting speed tracking and restarting.

Acceleration/Deceleration Time: Adjustable from 0.1~3600 seconds, supporting linear/non-linear acceleration/deceleration modes.

Carrier Frequency: Adjustable from 0.5~15kHz, reducing motor noise and optimizing heat dissipation.

Ⅲ. Interfaces and Expansion Functions

1. Input and Output Interfaces

Digital Input: 6 programmable terminals (X1~X6), supporting functions such as forward/reverse rotation, jogging, and fault reset.

アナログ入力: AI1 (0~10V), AI2 (0~10V/0/4~20mA), supporting dual analog叠加 input.

アナログ出力: 2 へ (0~10V/0/4~20mA), which can monitor parameters such as frequency and current.

Relay Output: 2 programmable relays (R1/R2), with contact capacity of AC250V 3A/DC30V 1A.

2. Expansion Capability

Brake Unit: Built-in brake unit (standard for models below 22kW), supporting external brake resistors for rapid braking.

Expansion Cards: Optional PLC modules, Profibus/DNP3 and other communication cards to enhance system integration capabilities.

1. Environmental and Physical Parameters
2. Environmental Conditions

動作温度: -10℃~+40℃ (derate by 1% for each 1℃ increase above 40℃).

Storage Temperature: -25℃~+60℃, humidity 5%~95% without condensation.

高度: Full power operation below 1000m; for each 1000m increase above 1000m, derate by 10%.

保護レベル: IP20 (for indoor use), supporting dusty and lightly oily environments.

2. Mechanical Specifications

Overall Dimensions: 140mm (幅) × 232mm (height) × 155mm (depth), weight 3.6kg.

設置方法: 壁掛け, installed vertically with 120mm heat dissipation space reserved.

Cooling Method: Forced air cooling with high-speed DC fan, fan life is about 20,000 hours.

1. Protection and Reliability
2. 保護機能

Overcurrent/Overvoltage/Undervoltage Protection: Real-time monitoring and rapid response to prevent equipment damage.

Overheating Protection: Built-in temperature sensor, automatically reduces frequency or shuts down when the radiator temperature exceeds 80℃.

Phase Loss/Short Circuit Protection: Detects input and output phase loss and motor short circuit to avoid fault expansion.

Motor Overload Protection: Supports custom overload curves to adapt to different load characteristics.

2. 信頼性設計

Three-Proof Paint Technology: PCB boards are sprayed with three-proof paint to resist dust, oil stains, and mild corrosive gases.

EMC Compatibility: Complies with GB/T 12668.2 standard, with built-in EMI filter to reduce electromagnetic interference.

Fault Diagnosis: LED panel displays more than 20 fault codes in real-time, supporting historical fault query.

1. 認証とコンプライアンス

– Domestic Certification: Passed China type test (CQC certification), complying with GB/T 12668.2 national standard.

– International Adaptability: The input voltage covers the North American 380V standard and can be directly connected to the industrial power grid, but details of UL/CSA certification need to be confirmed.

– Local Support: Chint’s North American team provides technical support, located in Pomona, California.

Ⅶ. Typical Application Parameters

1. Energy-Saving Performance

Fan and Pump Scenarios: Achieve 20%~50% energy saving through V/F control, automatically optimizing the operation curve.

Constant Torque Loads: Efficiency ≥ 93% and power factor ≥ 0.95 under vector control.

2. Industry Adaptability

Lifting Machinery: High starting torque at 0.5Hz, supporting rapid braking and positioning control.

Conveyor Belt Systems: Multi-speed operation and PID closed-loop control ensure the stability of material conveying.

Injection Molding Machines: Precise torque control reduces energy consumption and extends mechanical life.

VIII. Advantages Compared with Competitors

まとめ

NVF2G-5.5/TS4 has become a mainstream choice in the industrial drive field due to its wide voltage adaptability, strong overload capacity, and high cost performance. Its sensorless vector control, built-in brake unit, and rich interface configuration can flexibly adapt to scenarios such as lifting, conveying, fans, and pumps. For North American users, although certification details need to be confirmed, Chint’s global service network and local support can provide reliable guarantees. It is recommended to communicate with distributors according to specific application requirements to obtain customized solutions.