1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of the RATTMMOTOR S2-SVD20 AC Servo Motor Driver. Please read this manual thoroughly before using the product to ensure safe and efficient operation.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the equipment:
- Ensure all power is disconnected before performing any wiring or maintenance.
- Only qualified personnel should install, operate, and maintain this equipment.
- Verify correct voltage and current ratings before connecting power.
- Proper grounding is essential to prevent electrical shock.
- Avoid touching internal components when power is applied.
- Do not operate the driver in environments with excessive moisture, dust, or corrosive gases.
- Ensure adequate ventilation to prevent overheating.
3. Package Contents
The standard package for the S2-SVD20 AC Servo Motor Driver typically includes the following components:
- S2-SVD20 AC Servo Motor Driver
- AC Servo Motor (specific model may vary, e.g., 1000W)
- Motor Power Cable
- Encoder Cable
- CN1 Port Connector
- Various other connectors and mounting screws
4. Technical Specifications
The S2-SVD20 AC Servo Motor Driver offers robust performance for various industrial applications. Key specifications are detailed below:
4.1 Driver Dimensions
4.2 Servo Motor Specifications (Example 1000W)
| Servo Motor Mode | Motor Flange | Power | RS485 (Modbus) | Customized cable length | Brake | Motor Shaft Diameter |
|---|---|---|---|---|---|---|
| 60AST-A1C01330 | Nema24 60mmx60mm (mounting hole distance 49.5mm) | 400W | Support | Support (3-15meter) | Optional | 14mm With 5mm Key |
| 60AST-A1C01930 | 600W | |||||
| 80AST-A1C02430 | Nema32 80mmx80mm (mounting hole distance 65.6mm) | 750W | 19mm With 6mm Key | |||
| 80AST-A1C04025 | 1000W |
5. Setup and Installation
5.1 Wiring Diagram
The following diagram illustrates the typical wiring for the 220V servo unit. Ensure all connections are secure and follow local electrical codes.
5.2 CN2 Pin Definition
The CN2 port is crucial for control signals. Refer to the table below for pin assignments and their functions.
| Pin | Interface No | Name | Function |
|---|---|---|---|
| DC12~24V | 9 | Power supply and ground of control signal | Input power and ground of input/output control signal |
| COM | 10 | ||
| SigIn1 | 6 | Input command signal | Input command signal. Functions assigned to each input signal port at the factory: SigIn1: servo enable, SigIn2: Alarm reset, SigIn3: position deviation clearing, SigIn4: pulse input disabled |
| SigIn2 | 7 | ||
| SigIn3 | 21 | ||
| SigIn4 | 8 | ||
| SigOUT1 | 11 | Output command signal | Output command signal. Functions assigned to each output signal port at the factory: SigOUT1: Servo ready, SigOUT2: alarm detection, SigOUT3: positioning completed, SigOUT4: emergency stop detection |
| SigOUT2 | 23 | ||
| SigOUT3 | 12 | ||
| SigOUT4 | 24 | ||
| PV | 2 | Command pulse input port | PV: open collector input power supply. The command pulse can be input in three different ways: 1: Command direction and pulse input, 2: Clockwise/counterclockwise pulse input, 3: Quadrature pulse input with 90 degree phase difference |
| PP+ | 3 | ||
| PP- | 14 | ||
| PD+ | 4 | ||
| PD- | 5 | ||
| empty | 20 | Encoder signal output | Contact the manufacturer for encoder output function |
| empty | 19 | ||
| empty | 18 | ||
| empty | 17 | ||
| empty | 15 |
For detailed information on digital input/output interface composition and position pulse command interface, please refer to the full user manual PDF.
6. Operation
6.1 Display Screen and Keys
The servo driver features a digital display and several keys for monitoring and parameter adjustment.
| Keys | Key name | Function |
|---|---|---|
| MODE | Mode selection key | 1. Mode switching 2. Return to the parent directory |
| ▲ | Number increase key | Increase the number, and long press will have repeated effect |
| ▼ | Number reduction key | Decrease the number, and long press has a repeating effect |
| ◀ ▶ | Shift key | Cursor shift |
| SET | OK key | 1. Determine the setting 2. End parameter setting |
Note: If all 5 decimal points on the display screen are flashing, an alarm will be given. The alarm must be cleared before the driver can work properly.
6.2 Display Mode Power Conversion
The driver supports Monitor mode (Dn), Auxiliary mode (Fn), and Parameter mode (Pn). The MODE key is used to switch between these top-level modes. When inside a mode, the MODE key returns to the upper directory.
6.3 Monitoring Mode (Dn) Operation
Monitoring mode allows viewing various operational parameters. For example, to check parameter dn015, navigate to Dn mode and select dn015. This mode provides real-time status of input/output signals and other system variables.
6.4 Auxiliary Mode (Fn) Operation
Auxiliary mode provides functions for system maintenance and calibration, such as alarm record query (Fn000), parameter writing (Fn001), JOG commissioning (Fn002), alarm clearing (Fn003), parameter initialization (Fn004), and encoder zeroing (Fn012, Fn015).
6.5 User Parameter Mode (Pn) Operation
Parameter mode allows detailed configuration of the servo driver's behavior. Parameters are categorized into System control, Position control, Speed control, Torque control, and Extended control. Each parameter has a number, name, value range, default value, and applicability (Torque, Speed, Position control).
For a complete list and detailed descriptions of all Pn parameters, please refer to the comprehensive user manual PDF.
7. Maintenance
- Regular Inspection: Periodically check all wiring connections for looseness or damage.
- Cleaning: Keep the driver and motor free from dust and debris. Use a soft, dry cloth for cleaning. Do not use solvents.
- Ventilation: Ensure that the cooling fins and ventilation openings are not obstructed to maintain proper heat dissipation.
- Environmental Conditions: Operate the device within specified temperature and humidity ranges to prolong its lifespan.
8. Troubleshooting
This section provides guidance on common issues and their solutions. For a comprehensive list of alarms and fault phenomena, refer to the full user manual PDF.
8.1 Alarm Codes and Countermeasures
The driver's display will show alarm codes (e.g., AL-01, AL-02) when an error occurs. Below are some common alarms:
| Alarm Display | Abnormal Alarm Description | Exclusion Method |
|---|---|---|
| AL-01 | Abnormal memory content | Initialize parameters and observe. |
| AL-02 | DC bus voltage too low | 1. Measure external power supply voltage and correct bus voltage using Fn009. 2. Observe displayed voltage (dn004); if large difference, internal components may be damaged. |
| AL-03 | Internal DC bus voltage too high | Observe displayed voltage (dn004); if large difference, internal components may be damaged. |
| AL-04 | Intelligent power module alarm | 1. Check motor power lines for short circuits. 2. If high heat sink temperature, power cycle. 3. Check proportional integral parameters. |
| AL-05 | Overload 1 | 1. Check motor and encoder wires. 2. Reduce acceleration/deceleration time, reduce load, or use higher power motor. |
| AL-08 | Servo amplifier radiator overheated | 1. Change motor operation mode to prevent repeated overloads. 2. Check for overloaded braking power. |
| AL-09 | Encoder abnormality | 1. Check motor encoder wiring. 2. Check encoder interface for faulty soldering or connections. |
8.2 Other Fault Phenomena
If the servo driver does not send an alarm but exhibits abnormal behavior, consult the following general troubleshooting steps:
- Motor not rotating: Check power supply, control signal connections (CN2), servo enable status (SON input), and input command values (torque, speed, position). Verify that the command pulse frequency is correct (Dn006).
- Motor stops after instantaneous operation: Check motor power line (UVW) wiring, encoder cable wiring, and ensure no excessive system load.
For detailed troubleshooting tables, including 'Motor non-rotation diagnosis' (Dn-36) and 'Other fault phenomena and treatment measures', please refer to the full user manual PDF.
9. User Tips
Based on general usage and common feedback for servo drivers:
- Parameter Backup: After configuring critical parameters, always perform a parameter write operation (Fn001) to save settings permanently.
- Initial Setup: During initial setup or troubleshooting, it's often helpful to perform JOG commissioning (Fn002) to test basic motor movement without complex control signals.
- Encoder Zeroing: If using an absolute encoder, ensure proper zeroing (Fn012, Fn015) for accurate positioning.
- PDF Manual: For in-depth technical details, parameter lists, and advanced functions, always consult the official PDF user manual. A PDF version of the manual is available for download: RATTMMOTOR S2 Series Servo Motor Driver Technical Manual (PDF).
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the manufacturer or your authorized distributor. Keep your purchase records for reference.