1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of the Lichuan A8 series high-performance AC servo motor and driver. The A8 series is designed for precision applications such as CNC machines and laser machines, offering advanced control features and robust performance.
2. Packaging List
Please verify the contents of your package against the list below. If any items are missing or damaged, contact your supplier immediately.
| No. | Item No. | Specifications | Qty |
|---|---|---|---|
| 1 | LCMT-07SLC17NB-80M02430B or LCMT-10SLC17NB-80M03230B or LCMT-10SLC17NB-80M04025B | 750W servo motor/ 2.39N 3000rpm or 1KW servo motor/ 3.2Nm 3000rpm or 1KW servo motor/ 4Nm 2500rpm | 1 |
| 2 | A8 series | AC servo driver/ pulse+direction+RS485 control | 1 |
| 3 | Power Cable | 3M (high soft chain cable) | 1 |
| 4 | Encoder Cable | 3M (high soft chain cable) | 1 |
| 5 | Servo Driver Instruction Book | Standard | 1 |
Note: The cable length can be customized. Motor encoder options include 17-bit absolute, 17-bit incremental, or 23-bit absolute. Motors are available with or without a brake. A complete set includes one servo driver, one servo motor, one 3M power cable, and one encoder cable.
3. Product Overview and Features
The Lichuan A8 series AC servo kit offers high performance and versatility for various industrial automation needs.
3.1 Key Features and Advantages
- High Accuracy: Can be equipped with linear motors, achieving accuracy up to 1 micron.
- Safety Function: Standard STO (Safe Torque Off) safety function for enhanced operational safety.
- Braking: Optional dynamic braking function for reliable stopping.
- Control: Supports ABZ quadrature pulse full closed-loop control.
- Encoder Support: Compatible with 17-bit and 23-bit incremental and absolute encoders.
- Multiple Control Modes: Supports 7 control modes including position, speed, torque, position/torque, position/speed, speed/torque, and position/speed/torque.
- Integrated Power Output: Internal 24V voltage output can power DI and pulse ports, reducing the need for external power supplies.
- Feedback: Supports ABZ phase pulse frequency division feedback.
- Flexible I/O: Features 16 virtual DI ports and 16 virtual DO ports for flexible communication control.
- Internal Segments: 16 internal speed and 16 internal position segments enable automatic cycle operation and flexible 485 communication control.
- Motor Self-Learning: Supports motor self-learning for compatibility with various motor manufacturers.
- Communication: Supports RS485 bus communication using the standard MODBUS RTU protocol.
- Analog Control: Features 2 analog inputs with 12-bit resolution, supporting an input range of -10V to +10V.
4. Specifications
4.1 Servo Motor Specifications (80 Flanged AC Servo Motor)
| Specification | 80ST Servo Motor | Brand | Lichuan |
|---|---|---|---|
| Frame Size | 80 mm * 80 mm | Matched driver | LC-A8 series |
| Shaft Diameter | 19 mm | Driver Voltage | 1phase AC220V |
| Rated Torque | 750W/ 2.39Nm 3000Rpm 1KW/ 3.2Nm 3000Rpm 1KW/ 4.0Nm 2500Rpm | Driver control | Pulse+direction, Modbus RS485, Analog -10 to +10V |
| Encoder | 17bit incremental or 17bit absolute or 23bit Absolute | Driver current | 20A |
| Motor type | 5 pairs of poles | Driver pulse response frequency | Default 600K |
4.2 Servo Driver Specifications (A8 Series)
| Feature | Description | |
|---|---|---|
| Input power | Single-phase 220VAC / Three-phase 220V | |
| Work Environment | Temperature | 0-45°C |
| Humidity | ≤90% RH, no condensation | |
| Altitude | ≤1000m above sea level | |
| Installation Environment | No corrosive, flammable, oil mist, or dust | |
| Installation Method | Vertical installation | |
| External encoder CN3 | Supports linear motors, full closed-loop mode, optical/magnetic encoders. Only differential input encoders supported. | |
| Encoder CN4 | Supports 17-bit incremental/absolute encoder, 23-bit incremental/absolute encoder | |
| Output power | 24V voltage output | 100mA, can power DI and pulse ports. |
| Control signal | Digital input | 8 standard digital inputs, configurable functions. |
| Digital output | 6 digital outputs, configurable functions. | |
| Pulse signal | Input | 2 high-speed inputs: up to 1MHz pulses with 50% duty cycle. Supported modes: PULS+DIR, A+B, CW+CCW |
| Output | Three high-speed pulse outputs, 5V differential output. One Z signal, single-ended output. | |
| Analog signal | Input | 2 analog inputs, 12-bit resolution, input range -10 to +10V. |
| Output | None | |
| STO safety function | 2 STO inputs | |
| Communication function | RS485 communication, ModbusRTU protocol. | |
| Display panel and key operation | Five buttons (Mode, Set, Left, Up, Down) and six digital LEDs. | |
| Regenerative brake resistor | Built-in 50W 40Ω braking resistor. An external braking resistor is required for frequent braking. | |
5. Setup and Installation
5.1 Component Identification
Refer to Figure 3.1 for a detailed functional description of the drive and its labeled components, including power terminals, control signal terminals, and communication ports.
5.2 Motor Dimensions
Before installation, ensure the motor dimensions are compatible with your application. Refer to Figures 4.1 and 4.2 for detailed motor dimensions.
5.3 Wiring Diagram
The following diagram illustrates the abstract wiring for the Lichuan A8 series servo driver and common peripheral equipment. Always ensure proper grounding and adhere to local electrical codes.
Wiring Notes:
- Braking Resistor: When using the internal braking resistor, short-circuit B2:B3. When using an external braking resistor, disconnect the B2:B3 short-circuit wire and connect the external braking resistor to the B1:B2 terminal.
- Filter: The filter should be selectively installed according to the field environment.
5.4 Installation Precautions
- Do not forcefully strike the shaft from the installation/disassembly position to the end of the motor to prevent damaging the encoder at the other end.
- Try to prevent shaft seat vibration as much as possible to prevent damage to the bearings.
- Ensure the driver is installed vertically for optimal heat dissipation.
- The operating environment should be free of corrosive substances, flammable materials, oil mist, or dust.
6. Operating Modes and Control
The Lichuan A8 series servo driver supports a variety of control modes to suit different application requirements:
- Pulse + Direction Control: Standard method for position control using pulse trains.
- Modbus RS485 Communication: For advanced control and parameter setting via serial communication.
- Analog Voltage Control: Input range of -10V to +10V for speed or torque control.
- ABZ Quadrature Pulse Full Closed-Loop Control: For high-precision positioning and feedback.
The driver features a display panel with five buttons (Mode, Set, Left, Up, Down) and six digital LEDs for configuration and monitoring.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your servo system. While specific maintenance schedules are detailed in the full product manual, general guidelines include:
- Keep the servo motor and driver clean and free from dust and debris.
- Ensure proper ventilation around the driver to prevent overheating.
- Periodically check all electrical connections for tightness and signs of wear.
- Inspect cables for damage and replace if necessary.
- Monitor for unusual noises or vibrations during operation, which may indicate a problem.
8. Troubleshooting
This section provides general troubleshooting tips. For detailed diagnostic procedures and error codes, please refer to the comprehensive servo driver instruction book included in your package.
- No Power: Check power supply connections and circuit breaker.
- Motor Not Moving: Verify control signal inputs, encoder connections, and ensure no STO safety function is active.
- Overheating: Ensure adequate ventilation and check for proper motor loading.
- Unstable Operation: Review parameter settings and ensure correct wiring.
If issues persist, contact technical support.
9. User Tips
No specific user tips were available from the provided reviews or Q&A content. Always refer to the detailed instruction book for best practices and advanced configurations.
10. Support
For technical support, bulk purchases, or dealer inquiries, please contact Lichuan directly:
- Contact Person: Annie Cheng
- Skype: annie_5543
- WhatsApp: +86 13714817266
- Email: annie@xlichuan.com
Lichuan Servo Motor Factory Store is committed to providing professional servo and stepper motor driver solutions.
