CNMAWAY T13-400W-12-H Frequency Converter User Manual

Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the CNMAWAY T13-400W-12-H series frequency converter. This device is designed to convert single-phase 220V input into three-phase 220V output, enabling precise speed control for three-phase motors. It also features RS485 communication for advanced control and monitoring.

Important Note: This product is specifically designed for single-phase 220V input and three-phase 220V output.

Terminology Clarification:

• 220V Single Input Single Output: Single-phase 220V input, single-phase 220V output. Typically used for motors with single or double capacitors.
• 220V Single In Three Out: Single-phase 220V input, three-phase 220V output. Used for motors without capacitors. (This is the configuration of this product.)
• 380V Three In Three Out: Three-phase 380V input, three-phase 380V output. Used for three-phase motors.
• 220V to 380V Single In and Three Out: Single-phase 220V input, three-phase 380V output. Used for three-phase motors.

Specifications

For specific model power ratings:

• 400W model
• 750W model (with/without RS485)
• 1500W model (with RS485)

Setup and Installation

Careful installation is crucial for the safe and proper functioning of the frequency converter. Ensure all power is disconnected before proceeding with any wiring.

Physical Dimensions:

Mount the device in a well-ventilated area, ensuring adequate space for heat dissipation, especially around the cooling fan located on the side/rear of the unit.

Wiring Instructions:

The frequency converter requires single-phase 220V input and provides three-phase 220V output for the motor. It also supports external control and RS485 communication.

1. Power Input (AC 220V Single-Phase):
   • Connect the single-phase 220V AC power supply to terminals labeled AC (pins 1 and 2).
2. Ground Connection:
   • Connect the ground wire to the terminal labeled FG (pin 3). This is essential for safety.
3. Motor Output (Three-Phase 220V):
   • Connect the three-phase motor wires to terminals labeled U, V, W (pins 4, 5, 6).
4. Control Signals:
   • Digital Inputs (D1, D2): Pins 1 and 2 (labeled D1, D2 on the control terminal block) are digital inputs.
   • RS485 Communication:
     • Connect RS485+ to terminal RS+ (pin 3 on control terminal block).
     • Connect RS485- to terminal RS- (pin 4 on control terminal block).
   • Multi-function Inputs (M1, MO): Pins 6 and 7 (labeled M1, MO on control terminal block) are multi-function inputs/outputs.
   • Common Ground (COM): Pin 8 is the common ground for control signals.
   • Speed Regulating Potentiometer (VR):
     • Connect the potentiometer to terminals VR (pin 9) and +5V (pin 10) with the center tap connected to COM (pin 8). This allows external speed adjustment.
   • External Sensor/Analog Input: The diagram also shows connections for an external sensor or analog input (0-5V/0-10V, 4-20mA) to terminals A+ and B-.

Refer to the detailed MODBUS-RTU Protocol Specification for advanced communication setup and parameter configuration.

This table outlines register addresses, data types, and descriptions for MODBUS communication, allowing for programmatic control of inverter speed, start/stop, and feedback.

Operating Instructions

The frequency converter features a user-friendly control panel for direct operation and parameter adjustment.

Control Panel Elements:

• Display: Shows current frequency, parameters, and status.
• Indicators (L1-L5):
  • L1 (LOCK): Indicates panel lock status.
  • L2 (FWD): Indicates forward rotation.
  • L3 (REV): Indicates reverse rotation.
  • L4 (POWER): Power indicator.
  • L5 (RS485): RS485 communication indicator.
• Buttons (K1-K7):
  • K1 (P-R / SHIFT): View parameters / Shift digit during setting.
  • K2 (MENU / ESC): Enter menu / Exit current menu.
  • K3 (SAVE / LOCK): Save settings / Lock/Unlock panel.
  • K4 (FWD / REV): Toggle forward/reverse rotation.
  • K5 (UP Arrow): Increase value / Navigate up.
  • K6 (ON/OFF): Start/Stop operation.
  • K7 (DOWN Arrow): Decrease value / Navigate down.
• VR (Speed Regulating Potentiometer): Adjusts motor speed directly when in manual control mode.

Basic Operation:

1. Power On: Ensure all wiring is correct and secure. Apply single-phase 220V power. The L4 (POWER) indicator should light up.
2. Speed Adjustment: Rotate the VR potentiometer to set the desired motor speed. The display will show the output frequency.
3. Start Motor: Press the ON/OFF button (K6) to start the motor. The L2 (FWD) or L3 (REV) indicator will light up depending on the direction.
4. Change Direction: Press the FWD / REV button (K4) to switch between forward and reverse rotation.
5. Stop Motor: Press the ON/OFF button (K6) again to stop the motor.
6. Parameter Settings:
   1. Press MENU / ESC (K2) to enter the parameter menu.
   2. Use the UP/DOWN arrows (K5/K7) to navigate through parameters.
   3. Press P-R / SHIFT (K1) to select a digit for modification.
   4. Use UP/DOWN arrows (K5/K7) to change the value.
   5. Press SAVE / LOCK (K3) to save the changes.
   6. Press MENU / ESC (K2) to exit the menu.
7. Panel Lock: Press and hold SAVE / LOCK (K3) to lock or unlock the control panel, preventing accidental changes. The L1 (LOCK) indicator will show the status.

Maintenance

Regular maintenance ensures the longevity and optimal performance of your frequency converter.

• Keep Clean: Periodically clean the exterior of the unit with a soft, dry cloth. Avoid using liquid cleaners or solvents.
• Ensure Ventilation: The unit relies on a cooling fan (see Figure 5) to dissipate heat. Ensure that the ventilation openings are not obstructed and that the fan is free from dust and debris.



• Environmental Conditions: Operate the converter within its specified temperature and humidity ranges. Avoid exposure to direct sunlight, excessive moisture, or corrosive environments.
• Connection Checks: Periodically inspect all wiring connections for tightness and signs of wear or corrosion. Loose connections can lead to poor performance or damage.

Troubleshooting

If you encounter issues with your frequency converter, refer to the following common troubleshooting steps:

• No Power/Display:
  • Check the main power supply connection.
  • Verify that the input voltage is within the specified range (single-phase 220V).
  • Inspect the power cable for damage.
• Motor Not Starting:
  • Ensure the "ON/OFF" button has been pressed.
  • Check motor wiring (U, V, W terminals) for correct connection.
  • Verify that the speed potentiometer (VR) is not set to zero.
  • Check for any error codes on the display and consult the full manual (if available) for their meaning.
• Incorrect Speed/Direction:
  • Adjust the VR potentiometer.
  • Press the FWD/REV button to change direction.
  • Check parameter settings related to speed control and direction in the menu.
• Overload/Overheat Protection:
  • If the unit shuts down due to overload or overheating, allow it to cool down.
  • Check the motor load to ensure it's within the converter's capacity.
  • Ensure proper ventilation and clear any obstructions from the cooling fan.
• RS485 Communication Issues:
  • Verify RS+ and RS- connections.
  • Check communication parameters (baud rate, parity, etc.) in the converter's settings and ensure they match your master device.
  • Ensure the RS485 indicator (L5) is active during communication attempts.

For complex issues or persistent problems, it is recommended to consult a qualified technician or contact CNMAWAY customer support.

User Tips

Based on user feedback and common inquiries, here are some tips for using your frequency converter:

• Read the Manual Carefully: While this document provides essential information, a thorough understanding of all parameters and functions will enhance your experience. Take your time to familiarize yourself with the control panel and wiring diagrams.
• Double-Check Wiring: Before applying power, always double-check all electrical connections. Incorrect wiring is a common cause of malfunction or damage.
• Start with Low Speed: When first operating a motor with the converter, start at a low frequency/speed and gradually increase it to ensure stable operation.
• Parameter Exploration: The converter offers various adjustable parameters. Experiment with these settings (after understanding their function) to optimize performance for your specific motor and application.
• Consider Professional Installation: If you are unfamiliar with electrical wiring or motor control, consider having a qualified electrician or technician perform the installation to ensure safety and proper setup.

Warranty and Support

For warranty information, technical support, or service inquiries, please contact the seller or the manufacturer, CNMAWAY, directly. Keep your purchase receipt and product model number (T13-400W-12-H) handy when contacting support.

Ensure you retain all original packaging and documentation for potential warranty claims or returns.