Σ-X Servo Drives - Replace Σ-7 Series
High Response Servo Systems for OEMs
The Σ-X series servo drives are the upgraded replacement for the Σ-7 series, specifically engineered for OEM manufacturers. Boasting an industry-leading speed response frequency of 3.5 kHz and a 26-bit high-resolution encoder, they deliver high-speed and precise motion control. Integrated with the i³ mechatronics concept and enhanced data sensing capabilities, these drives support predictive maintenance and flexible commissioning, while being compatible with multiple industrial bus protocols. With high reliability and global compliance, they provide efficient and stable power solutions for equipment in industrial automation, precision machine tools, robotics and other fields, serving as an ideal choice to replace the Σ-7 series and boost equipment performance and production efficiency.
Core Features
- Top-tier motion performance: Industry-leading 3.5kHz speed response frequency and 26-bit high-resolution encoder (67 million pulses/rev), achieving nanometer-level precise positioning.
- Enhanced motor specs: Motor maximum speed reaches 7000 min⁻¹, shortening tact time and improving equipment driving efficiency.
- Intelligent tuning functions: Equipped with tuning-less, advanced auto-tuning, and single-parameter tuning, adapting to load fluctuations up to 100 times without manual adjustment.
- Rich communication compatibility: Supports MECHATROLINK-4/Ⅲ, EtherCAT, PROFINET, with a minimum transfer cycle of 31.25μs and Σ-Link Ⅱ sensor network for integrated connectivity.
- Comprehensive safety protection: Complies with IEC 61800-5-2 STO function, ISO 13849-1 PLe (Category 3), and IEC 61508 SIL3 standards, with multiple protections like overcurrent and overvoltage.
- Data sensing & monitoring: Real-time collects vibration, torque, and sensor data for trend prediction, enabling preventive maintenance and abnormality detection.
- Wide power range: Covers 11W-15kW, compatible with rotary, direct-drive, and linear servo motors for diverse application needs.
- Durable environmental adaptability: IP67 protection level, operating temperature range of -15℃ to 70℃, and mechanical backward compatibility with Σ-7/Σ-5 series.
Key Advantages
- Performance leap: 3.5kHz speed response and 26-bit resolution deliver 40% shorter positioning time and ±0.01% speed fluctuation, outperforming the previous Σ-7 series.
- Efficient commissioning: Intelligent tuning functions reduce setup time, with SigmaWin+ software for one-click wiring checks and visual adjustment results.
- Cost reduction: Energy-saving design cuts power consumption by 25% and brake resistor usage by 50%; 3-year warranty lowers long-term maintenance costs.
- Simplified integration: Multi-protocol compatibility and reduced wiring via Σ-Link Ⅱ shorten equipment development cycles for OEMs.
- Stable operation: Vibration suppression, resonance elimination, and load fluctuation compensation ensure stable performance even in complex mechanical systems.
- Global market access: UL/CE/ROHS certifications and SEMI "F47" compliance enable seamless entry into international markets.
- Future-proof scalability: Supports modular system decentralized control and IP communication, adapting to smart factory digital transformation needs.
- Reliable durability: 100,000-hour service life and 300% overload capacity guarantee long-term stable operation in harsh industrial environments.
Core Technical Specifications
| Parameter Category |
Specific Parameters |
Description |
| Basic Specifications |
Power Range |
11W-15kW (compatible with 500W-15kW AC400V models) |
| Basic Specifications |
Input Voltage |
AC400V (Σ-XS single-axis models) |
| Basic Specifications |
Compatible Motor Types |
Rotary servo motors (low/mid inertia, e.g., SGMXA, SGMXG, SGMXP series), direct-drive motors, linear servo motors |
| Motion Control Performance |
Speed Response Frequency |
3.5kHz (industry-leading level) |
| Motion Control Performance |
Encoder Resolution |
50W-15kW: 26-bit absolute/battery-less absolute encoder (67 million pulses/rev); 11W-33W: 20-bit absolute encoder |
| Motion Control Performance |
Maximum Motor Speed |
7000r/min |
| Motion Control Performance |
Positioning Accuracy |
Nanometer-level precision, speed fluctuation rate ±0.01%, positioning time reduced by 40% |
| Motion Control Performance |
Overload Capacity |
300% (short-time operation) |
| Communication & Control |
Supported Bus Protocols |
MECHATROLINK-4/Ⅲ, EtherCAT, PROFINET, etc. |
| Communication & Control |
Minimum Transmission Cycle |
31.25μs (MECHATROLINK-4) |
| Communication & Control |
Control Modes |
Three-loop control (position/speed/torque), supporting tuning-less, advanced auto-tuning, single-parameter tuning |
| Communication & Control |
Tuning Time |
Tuning-less: 100-150ms; Advanced auto-tuning: 10ms level; Single-parameter tuning: 0-4ms level |
| Safety & Protection |
Safety Functions |
STO (Safe Torque Off), compliant with IEC 61800-5-2, ISO 13849-1 PLe (Category 3), IEC 61508 SIL3 standards |
| Safety & Protection |
Protection Class |
IP67 |
| Safety & Protection |
Operating Temperature Range |
-15℃ to 70℃ |
| Intelligence & Maintenance |
Data Monitoring |
Real-time collection of vibration, torque and other operational data, supporting predictive maintenance |
| Intelligence & Maintenance |
Sensor Network |
Σ-Link Ⅱ, supporting high-speed synchronous data transmission and reducing wiring |
| Intelligence & Maintenance |
Debugging Software |
SigmaWin+, supporting one-click wiring detection and visual parameter adjustment |
| Reliability & Compatibility |
Service Life |
100,000 hours |
| Reliability & Compatibility |
Mechanical Compatibility |
Fully compatible with Σ-7/Σ-5 series, facilitating upgrade of old equipment |
| Reliability & Compatibility |
International Certifications |
UL/CE/ROHS, compliant with SEMI "F47" standard |
Application Fields
Semiconductor & Electronics Manufacturing
Core Applications: Wafer processing equipment (lithography, etching, deposition), die bonders, wire bonders, LCD/OLED panel handling and inspection machines, and precision testing equipment.
26-bit encoder resolution enables nanoscale positioning; 3.2kHz speed response and ≤0.5% torque ripple ensure ultra-stable motion; EtherCAT/MECHATROLINK-4 with 31.25μs cycle supports coordinated multi-axis control, meeting the strict requirements of semiconductor front-end and back-end processes for yield and throughput.
Electronic Component Mounting & PCB Assembly
Core Applications: High-speed surface mount technology (SMT) placement machines, automated insertion machines, and precision dispensing/coating equipment.
Fast settling time (0.5ms) and ±1 pulse positioning accuracy reduce component placement errors; dual/triple-axis drives (SGDXW/SGDXT) save cabinet space and lower wiring costs; built-in vibration suppression minimizes PCB warpage risks during high-speed motion.
Machine Tools & Metalworking
Core Applications: Precision turning centers, milling machines, grinders, laser cutting/engraving machines, and CNC bending machines.
300% overload capacity handles heavy cutting loads; resonance suppression algorithms eliminate mechanical vibrations from tool changes; real-time data feedback (temperature, load, vibration) supports predictive maintenance, extending spindle and tool life.
Industrial Robotics
Core Applications: 6-axis articulated robots, SCARA robots, delta robots, gantry robots, and collaborative robots (cobots) for material handling, assembly, welding, and painting.
Multi-axis synchronization with sub-millisecond latency; HWBB safety functions (e.g., STO, SS1) meet ISO 13849-1 PLd standards; compact single/dual-axis drives fit robot arm cavities, enhancing payload-to-weight ratios.
Common On-Site Issues & Solutions
Installation & Wiring Issues
Q1: Overseas factory power grids come in different specifications like 200V and 400V. How to match the Σ-X series to these voltages? What happens if we choose the wrong one?
A1: The overseas version of Σ-X has two mainstream voltage models: 200V and 400V. Always verify the local line voltage before selecting a model. For example, North America and Japan mostly use 3-phase 200V, while Europe and China use 3-phase 400V. Connecting a 200V model to a 400V grid will instantly burn out the power module. Conversely, a 400V model on a 200V grid will trigger an undervoltage fault (A.09) and deliver drastically reduced torque output. The fix: Lock in the correct voltage rating during model selection. If the on-site voltage doesn't match, install a transformer with a capacity no less than 1.5 times the drive's rated power.
Q2: After wiring the encoder, we keep getting error code A.510 (encoder communication failure). We've checked the wiring sequence repeatedly--how to troubleshoot this quickly on overseas sites?
A2: This issue is mostly caused by poor shielding/grounding or cable interference. First, use only original shielded twisted-pair encoder cables, with the shield grounded at the drive end only (connect to the drive's grounding terminal). Never route encoder cables in the same conduit as power cables--maintain a minimum distance of 20cm. Second, check if the encoder connector is fully seated and if any pins are bent (a common issue during overseas shipping). Third, in high-interference environments (e.g., near laser cutters), add ferrite cores to the encoder cable or install a signal filter. Additionally, note that some overseas models use 26-bit encoders--make sure the parameter setting matches (don't set it to 17-bit by mistake).
Product Certifications
| Certification Type |
Core Standards |
Applicable Regions |
Core Functions |
| CE Certification |
EN 61800-5-2 (Functional Safety), EN 61010-1 (Electrical Safety), EN 55011 (EMC) |
EU, European Economic Area (EEA), Central & Eastern Europe, etc. |
Basic certification for legal access to the European market; ensures electrical safety and electromagnetic compatibility |
| UL Certification |
UL 508C (Industrial Control Equipment), UL 61800-5-1 (Servo Safety) |
North America (USA, Canada), Mexico, etc. |
Meets North American electrical safety standards and NEC codes; applicable to medical and industrial scenarios |
| RoHS Certification |
EU RoHS 2.0 (2011/65/EU) |
Most countries/regions worldwide (EU, Japan, South Korea, China, etc.) |
Restricts hazardous substances such as lead and mercury; complies with environmental protection requirements |
| KC Certification |
Korean Electrical Safety Act (KES) |
South Korea |
Mandatory certification for products entering the Korean market; covers electrical safety and EMC |
| SIL3/PLe Certification |
IEC 61508 (SIL3), ISO 13849-1 (PLe, Cat.3) |
Global high-safety-requirement industrial scenarios (e.g., robotics, semiconductor equipment) |
Ensures functional safety; supports the construction of safety-related control systems |
| SEMI F47 Certification |
SEMI F47 (Voltage Fluctuation Tolerance) |
Global semiconductor and LCD manufacturing fields |
Adapts to grid voltage fluctuation scenarios in semiconductor factories |
Warranty Services
Basic Warranty Policy (Factory Standard, Globally Applicable)
- Warranty Period: The original factory warranty period for Σ-X series servo drives (including drives and servo motors) is 3 years, calculated from the date of product delivery to the customer (based on delivery order or invoice date).
- Warranty Coverage: Only covers product quality issues caused by non-human, non-external force and non-modification factors, including power module failures, encoder communication abnormalities, control circuit faults and other factory manufacturing defects.
