TS4 Variable Speed Drive 380V

• The CHINT NVF2G Series Inverter is a high-efficiency open-loop vector variable frequency drive (VFD), specifically highlighting the robust TS4 (3-Phase 380V, General/Heavy Load) models.
• Engineered for superior motor control and energy savings, this series stands out with its high starting torque, strong overload capacity, and flexible operation.
• It incorporates advanced features like forward and reverse PID control, making it ideal for a wide array of demanding electric drive and automation control applications.
• The NVF2G TS4 models are designed for strong load adaptability, stable and reliable operation, and automatic energy-saving functionality.

Features

• High Starting Torque: Achieves 1.5 times rated torque at 0.5 Hz (150% of rated motor torque).

• Superior Energy-Saving Effect: Optimizes motor efficiency regardless of load changes through energy-saving control.

• Accurate Auto-Tuning Function: Performs overall and static auto-tuning of motor parameters for improved control accuracy and response speed.

• Speed Tracking: Smoothly restarts and continues operation by judging motor rotation direction and speed after momentary power interruptions.

• Ultra-Strong Overload Capacity (T-Type/TS4): Maintains 1 minute under 150% of rated current, 180% for 2 seconds.

• Wide Carrier Frequency: Adjustable from 1-15 kHz, effectively reducing motor operation noise.

• Advanced Control: Supports V/F control and No PG sensorless vector control (SVC) with Space Vector PWM modulation.

• Comprehensive Protection: Includes functions for overcurrent, overvoltage, undervoltage, overheat, overload, and phase loss.

• Communication Interface: Standard RS-485 communication interface supporting MODBUS protocol for easy integration with PLCs and automation systems.

• Built-in PID Control: Intelligent PID control with dormancy function for efficient energy saving.

• Simple PLC Function: Allows variable speed operation according to predefined rules and multi-stage frequency settings.

• Robust Design:

  • Input voltage design with ±15% fluctuation tolerance.

  • Input filtration to reduce harmonic interference.

  • Modular design for easy assembly, disassembly, and maintenance.

  • Conformal coating on circuit boards for reliability in harsh environments.

• Wide Operating Temperature: -10°C to +40°C (derating required above 40°C).

• Software Functions: Includes speed tracking, DC braking, AVR, automatic current limiting, torque limit, frequency detection, wobble frequency control, frequency skip, multi-stage speed operation, energy-saving operation, failure record, PID control, overvoltage restraint, fault restoration, and automatic torque boost.

Benefits

• Enhanced Performance: Delivers precise motor control and high starting torque for demanding applications, ensuring reliable startup and operation.

• Energy Efficiency: Significantly reduces energy consumption by optimizing motor performance based on load, leading to lower operational costs.

• Increased Reliability: Robust design with comprehensive protection functions and conformal coating ensures long service life and stable operation even in challenging industrial environments.

• Ease of Use & Integration: Features like auto-tuning, simple PLC, and standard MODBUS communication simplify setup, operation, and integration into existing automation systems.

• Versatile Application: Suitable for a broad range of industries and equipment due to its flexible control modes and extensive software functions, particularly for heavy-duty tasks.

• Reduced Maintenance: Modular design facilitates quick and easy maintenance, minimizing downtime.

• Improved System Stability: Automatic Voltage Regulation (AVR) and current limiting functions protect the system and ensure smoother operation.

• Quiet Operation: Adjustable wide carrier frequency helps in reducing audible motor noise.

Technical Specifications

Specific Model Specifications (3-Phase 380V TS4 Models)

Dimensions & Weight (Examples for 3-Phase 380V TS4 Models)

• NVF2G-1.5/TS4: W:118mm, H:187mm, D:173mm; Weight: 2.4kg
• NVF2G-5.5/TS4: W:155mm, H:247mm, D:189mm; Weight: 3.6kg
• NVF2G-11/TS4: W:191mm, H:378mm, D:183mm; Weight: 10.5kg
• NVF2G-30/TS4: W:300mm, H:527mm, D:230mm; Weight: 26.5kg
• NVF2G-75/TS4: W:406mm, H:631mm, D:272mm; Weight: 58kg
• NVF2G-110/TS4: W:406mm, H:631mm, D:272mm; Weight: 58kg
• NVF2G-160/TS4 to NVF2G-200/TS4: W:540mm, H:892mm, D:390mm; Weight: 121kg

(Detailed dimensions for all models are available in the product datasheets.)

Ideal Use

• Pumps & Fans: Water supply systems, HVAC systems, draught fans, cooling towers.

• Conveying Systems: Conveyor belts in manufacturing and logistics.

• Machinery: Plastic machinery, textile machinery (with wobble frequency), food processing machinery, packaging machinery.

• Industrial Processes: Chemical industry, cement production, dyeing processes.

• Heavy Load Applications: Rolling mills, mixers, ball grinders, centrifugal machines, extruders, and other constant torque or heavy-duty machinery.

• Automation Control: Integration into automated production lines and systems requiring robust motor control.

Tips

• Installation:

  • Ensure adequate ventilation space around the inverter: typically >50mm on sides and >120mm top/bottom.

  • Install vertically on a non-flammable, sturdy surface.

  • Avoid direct sunlight, high humidity, corrosive gases, and excessive dust or vibration.

  • For multiple inverters, ensure proper spacing or use windshields/inclined installation to prevent mutual heating.

• Wiring:

  • Separate control wiring from power wiring to prevent interference.

  • Use appropriately sized cables for power input and motor output.

  • Ensure proper grounding of the inverter and motor.

  • For motor cable lengths exceeding 100 meters, an AC output reactor is recommended.

• Commissioning:

  • Perform auto-tuning for optimal motor performance, especially in vector control mode.

  • Verify motor parameters are correctly entered into the inverter.

• Operation:

  • The TS4 models are designed for general purpose and heavy load applications.

  • Ensure the inverter power rating is equal to or greater than the motor power rating.

  • Do not use an output contactor to frequently start/stop the motor; use inverter control signals instead.

• Maintenance:

  • Regularly inspect for dust accumulation and clean the heatsink and fan.

  • Check for loose terminal connections periodically.

  • Power off the inverter and wait at least 10 minutes (or until DC bus voltage is safe) before performing any internal inspection or maintenance.

• Environmental Protection:

  • Dispose of the inverter or its components as industrial waste or hand over to a recycling station according to local regulations.

PLC Integration with CHINT NVF2G Series Inverters

Communication Protocol & Interface

• Primary Protocol: Supports Modbus RTU and Modbus ASCII protocols for serial communication.

• Physical Interface: Equipped with a standard RS-485 communication interface (2-wire, half-duplex).

• Networked Control: Enables networked automation control with external PLC equipment.

• Default Settings: Typically defaults to 9600bps, 8-N-1 (8 data bits, no parity, 1 stop bit), Modbus RTU, with slave address 0x01 (configurable via Fb group parameters).

• Master-Slave Architecture: The inverter acts as a Modbus slave device.

PLC Control Capabilities via Modbus Communication (F0.01 set to '2')

• Run Commands:

  • Start/Stop the inverter.

  • Control Forward/Reverse rotation.

  • Initiate Jogging operations (forward/reverse/stop).

  • Execute Free Stop.

  • Perform Fault Reset.

  • (Controlled via Modbus register, e.g., 0x3200).

• Frequency Setting:

  • Set the operating frequency of the inverter remotely.

  • (Controlled via Modbus register, e.g., 0x3201, unit 0.01Hz).

• Parameter Access (Read/Write):

  • Read and write various inverter function code parameters (e.g., acceleration/deceleration times, motor parameters, V/F curve settings).

  • Modbus register addresses map to function code groups and indices (e.g., F0.05 maps to 0x0005 for EEPROM write, 0x8005 for RAM write).

  • Supported Modbus function codes include 0x03 (Read Holding Registers), 0x04 (Read Input Registers - for attributes), 0x06 (Write Single Register), 0x10 (Write Multiple Registers).

• Status Monitoring:

  • Read the inverter's operational status (e.g., run/stop, direction, accelerating, decelerating, fault, overcurrent limit, overvoltage limit).

  • (Monitored via Modbus register, e.g., 0x3300 for bit-mapped status).

• Data Monitoring (Real-time Values):

  • Read real-time operating parameters such as:

    • Output Frequency

    • Set Frequency

    • Bus Voltage

    • Output Current

    • Operating Speed

    • Output Power

    • Output Torque

    • PID Given Value & Feedback

    • Input/Output Terminal Status

    • Analog Input Values (AI1, AI2)

    • PLC Current Segment Speed

  • (Monitored via Modbus registers, e.g., 0x3400 to 0x3411).

• Fault Information:

  • Read detailed fault codes and history from the inverter.

  • (Fault code at Modbus register 0x3600).

Hardware Integration with PLC (Digital & Analog I/O for Terminal Control)

• Digital Inputs (X1-X6):

  • PLC can send discrete signals to the inverter's multi-function digital inputs.

  • These inputs can be programmed for various functions:

    • Terminal run/stop, forward/reverse.

    • Multi-speed selection (up to 15 speeds).

    • Jog operation.

    • External fault input.

    • Run pause.

    • Acceleration/Deceleration time selection (up to 4 sets).

    • UP/DOWN frequency adjustment.

    • PID disable/enable.

  • Interface mode (PNP/NPN) is selectable via jumper J606 for compatibility.

• Digital Outputs (Y1 - Open Collector, RO1 & RO2 - Relay Outputs):

  • PLC can receive status signals from the inverter's programmable digital and relay outputs.

  • These outputs can indicate:

    • Inverter running.

    • Fault status.

    • Frequency level arrival (FDT1/FDT2).

    • Overload pre-alarm.

    • Upper/Lower frequency limit reached.

    • Zero speed.

    • Drive ready.

    • Torque limit active.

• Analog Inputs (AI1, AI2):

  • PLC can provide analog setpoints (e.g., frequency reference, PID target value).

  • Accepts 0-10V voltage or 0/4-20mA current signals (selectable via jumpers J601, J602).

• Analog Outputs (AO1, AO2):

  • PLC can read analog values representing inverter parameters.

  • Outputs 0-10V voltage or 0/4-20mA current signals (selectable via jumpers J603, J604).

  • Can represent:

    • Operating frequency.

    • Set frequency.

    • Output speed.

    • Output current/torque/power.

    • Bus voltage.

Built-in "Simple PLC" Function

• The NVF2G inverter features a built-in Simple PLC function for multi-stage speed control.

• Allows programming of up to 15 speed steps, each with its own frequency, run time, acceleration/deceleration times, and running direction.

• Operation modes include: stop after a single cycle, maintain final value after a single loop, or continuous loop.

• While primarily an internal function, an external PLC could potentially initiate or interact with this sequence if digital inputs are mapped to trigger stages or control its operation, or monitor its progress via digital outputs.

Key Configuration Parameters for PLC Integration

• F0.01 (Run Command Channel Selection): Must be set to '2' for control via Modbus communication. (Set to '1' for terminal control via digital inputs).

• F0.02 (Main Frequency Source Selection): Can be set to '8' (Communication given frequency) for Modbus frequency control.

• Fb Group (Serial Communication Parameters):

  • Fb.00 (Local Mailing Address): Sets the inverter's Modbus slave address (1-247).

  • Fb.01 (Communication Baud Rate Setting): e.g., 9600BPS, 19200BPS.

  • Fb.02 (Data Bit Check Setting): e.g., 8-N-1, 8-E-1.

  • Fb.03 (Communication Response Delay).

  • Fb.05 (Transport Error Handling).

• F5.xx Group (Input Terminal Functions): Configure functions for X1-X6 when using terminal control or mixed control modes.

• F6.xx Group (Output Terminal Functions): Configure functions for Y1, RO1, RO2 for status feedback to PLC.

Wiring & Network Considerations

• RS-485 Wiring: Use shielded twisted-pair cable. Daisy-chain topology is recommended.

• Termination: Termination resistors (100-120 Ohm) may be needed at both ends of the RS-485 bus for long distances or multiple devices to improve signal integrity.

• Grounding: Proper grounding of the communication cable shield (typically at one end, e.g., at the master/PLC side) and inverter is crucial to minimize noise.

• Cable Length: Maximum RS-485 cable length depends on baud rate and cable quality (e.g., up to 1000m at 9600bps with AWG26 or thicker). Branch lines should be short.

By utilizing these communication and I/O capabilities, the CHINT NVF2G inverter can be effectively integrated into PLC-controlled automation systems for comprehensive monitoring and control. Always refer to the specific function code descriptions in the User's Guide for detailed programming.