1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the VEICHI AC10 series frequency converters. Please read this manual thoroughly before using the product to ensure proper handling and to prevent damage or injury.
The VEICHI AC10 series frequency converters are designed for general-purpose applications, offering reliable motor control and energy efficiency. This manual covers models such as AC10-T/S2-R75G-B-220V, AC10-T/S2-1R5G-B-220V, AC10-T/S2-2R2G-B-220V, AC10-T3-R75G-B-380V, and AC10-T3-1R5G-B-380V.
2. Safety Precautions
Always observe the following safety precautions to prevent electric shock, fire, or personal injury. Failure to comply may result in severe consequences.
- Qualified Personnel: Installation, wiring, operation, and maintenance must be performed by qualified electrical personnel only.
- Power Disconnection: Always disconnect all power sources before performing any wiring or maintenance. Wait at least 5 minutes after power off for the capacitor discharge indicator to extinguish.
- Grounding: Ensure the frequency converter is properly grounded according to local electrical codes.
- Environmental Conditions: Do not operate the converter in environments exceeding specified temperature, humidity, or dust levels.
- Protective Covers: Do not remove protective covers or touch internal components while power is applied.
3. Product Overview
The VEICHI AC10 series frequency converter features a compact design with an integrated control panel for easy operation and monitoring.
Figure 3.1: Front view of the VEICHI AC10 Frequency Converter. This image displays the main unit, highlighting the digital display for parameters, control buttons for programming and operation, and the various terminal blocks for power and control wiring. A screwdriver is visible in the side compartment.
3.1. Control Panel Layout
The control panel consists of a digital display and several function buttons:
- Display: Shows operational parameters, fault codes, and programming values.
- PRG (Program): Enters/exits parameter setting mode.
- UP/DOWN Arrows: Navigate through parameters, adjust values.
- RUN: Starts the motor.
- STOP/RESET: Stops the motor, resets fault conditions.
- SET/SHIFT: Confirms parameter settings, shifts cursor during input.
4. Setup and Installation
4.1. Mounting
Mount the frequency converter vertically on a flat, non-flammable surface. Ensure adequate ventilation space around the unit (at least 10 cm above and below, 5 cm on sides) for heat dissipation.
4.2. Wiring
Refer to the wiring diagram provided with your specific model for detailed connections. General wiring guidelines:
- Power Input (R, S, T or L1, L2): Connect to the main power supply. Ensure correct voltage (220V or 380V depending on model).
- Motor Output (U, V, W): Connect to the motor terminals.
- Ground (PE): Connect to a reliable ground point.
- Control Terminals: For external control signals (e.g., start/stop, speed reference, fault output).
Warning: Incorrect wiring can lead to severe damage to the unit or personal injury. Consult a qualified electrician if unsure.
5. Operating Instructions
5.1. Initial Power-Up
- After completing all wiring, apply power to the frequency converter.
- The display will light up, typically showing "0.00" or a default frequency.
5.2. Basic Operation (Keypad Control)
- Set Frequency: Press the PRG button to enter parameter mode. Navigate to the frequency setting parameter (e.g., F0.01) using the UP/DOWN arrows. Press SET/SHIFT to edit, adjust value, then SET/SHIFT again to confirm. Press PRG to exit.
- Start Motor: Press the RUN button. The motor will accelerate to the set frequency.
- Stop Motor: Press the STOP/RESET button. The motor will decelerate and stop.
5.3. Parameter Settings
The AC10 series has a comprehensive set of parameters for various functions. Refer to the detailed parameter list in the full product manual for advanced configurations (e.g., acceleration/deceleration times, motor parameters, control modes).
Example parameters:
- F0.00: Run command source (keypad, terminal, communication)
- F0.01: Frequency setting source (keypad, analog input, communication)
- F0.03: Max output frequency
- F0.04: Acceleration time
- F0.05: Deceleration time
6. Maintenance
Regular maintenance ensures the longevity and reliable operation of your frequency converter.
- Cleaning: Periodically clean the cooling fins and fan to prevent dust accumulation, which can hinder heat dissipation. Use compressed air or a soft brush. Ensure power is off before cleaning.
- Terminal Check: Annually check all wiring terminals for tightness. Loose connections can cause overheating or intermittent operation.
- Environmental Check: Verify that the operating environment remains within specified temperature and humidity ranges.
- Fan Replacement: Cooling fans have a limited lifespan. Consider replacing them every 3-5 years, depending on operating conditions, to maintain optimal cooling.
7. Troubleshooting
This section provides common issues and their potential solutions. For complex problems, contact technical support.
| Problem/Fault Code | Possible Cause | Solution |
|---|---|---|
| No Display/Power | No input power; Blown fuse; Internal fault. | Check power supply; Check fuses; Contact support. |
| Overcurrent (OC) Fault | Motor overload; Short circuit in motor wiring; Rapid acceleration/deceleration. | Check motor load; Inspect motor wiring; Increase acceleration/deceleration time. |
| Overvoltage (OV) Fault | Input voltage too high; Rapid deceleration with high inertia load. | Check input voltage; Increase deceleration time; Consider braking resistor. |
| Undervoltage (UV) Fault | Input voltage too low; Power supply dip. | Check input voltage; Ensure stable power supply. |
| Overheat (OH) Fault | Ambient temperature too high; Fan failure; Blocked ventilation. | Improve ventilation; Clean cooling fins; Check fan operation. |
To reset a fault, press the STOP/RESET button after resolving the cause.
8. Specifications
The following specifications are typical for the VEICHI AC10 series. Specific values may vary slightly by model.
| Parameter | Value/Range |
|---|---|
| Input Voltage | Single-phase 220V (AC10-T/S2 models) or Three-phase 380V (AC10-T3 models) |
| Output Frequency Range | 0.00 Hz - 400.00 Hz |
| Control Mode | V/F control, Sensorless vector control |
| Overload Capacity | 150% of rated current for 60 seconds |
| Protection Features | Overcurrent, Overvoltage, Undervoltage, Overheat, Overload, Short circuit |
| Operating Temperature | -10°C to 40°C (14°F to 104°F) |
| Humidity | Less than 90% RH (non-condensing) |
| Dimensions (Approx.) | Varies by power rating (e.g., 2 x 2 x 2 inches for smaller models) |
| Weight (Approx.) | Varies by power rating (e.g., 4.41 Pounds for smaller models) |
Note: For precise specifications of your specific model, refer to the product label or the comprehensive technical datasheet.
9. Warranty and Support
9.1. Warranty Information
This product is typically covered by a manufacturer's warranty against defects in materials and workmanship for a period specified at the time of purchase. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, misuse, unauthorized modification, or operation outside of specified environmental conditions.
For specific warranty terms and conditions, please refer to the documentation provided with your purchase or contact the seller.
9.2. Technical Support
If you encounter issues that cannot be resolved using the troubleshooting guide, or require further technical assistance, please contact your supplier or the manufacturer's authorized service center.
When contacting support, please be prepared to provide the following information:
- Product Model Number (e.g., AC10-T/S2-1R5G-B-220V)
- Serial Number (if applicable)
- Date of Purchase
- Detailed description of the problem, including any fault codes displayed.
