Overview

The Summa ED3L series by ESTUN AUTOMATION is a fully digital AC servo system comprising servo drives and motors designed for precise motion control in industrial automation. ESTUN aims to be a global leader in intelligent robotics and Industry 4.0 solutions.

Company Background and Strategy

ESTUN Automation has transitioned from AC servo system provider to a comprehensive motion control solutions company, expanding globally through acquisitions and R&D investments, focusing on intelligent collaborative robots and smart manufacturing.

Product Specifications

Servo Drives (ED3L Series)

• Power range: 50W to 7.5kW
• Voltage: 200VAC and 400VAC
• Protection class: IP20
• Altitude: Below 1000m
• Communication: EtherCAT, CANopen, Profinet
• Safety: Supports STOFS02 safe torque off function
• Brake resistance built-in for >400W models; absent for 50W–400W
• Protections: overcurrent, overvoltage, undervoltage, overload, regeneration error, overspeed
• Utility features: alarm recording, JOG operation, load inertia recognition, mechanical analyzer, auto-setup tools
• Interface: 5-digit digital tube display with 4 buttons; USB for config and monitoring

Servo Motors (EM3A Series)

• Power: 50W to 7.5kW, multiple frame sizes (A5 to 75)
• Voltage: 200VAC and 400VAC
• Encoders: 17-bit and 23-bit absolute, serial and linear types
• Options: shaft end types, oil seals, brakes, standard/waterproof plugs
• Torque and speed curves provided per model
• Motor inertia and allowable radial/axial shaft loads specified
• Standardized flange dimensions and mounting holes for integration

Performance and Operating Conditions

• Specified operating and storage temperature and humidity ranges
• Configurable soft start time to reduce mechanical stress
• Speed fluctuation controlled for smooth operation
• Control modes: torque, speed, position (external or built-in setpoints)
• Encoder pulse outputs with line drive signals (A, B, C phases)

Input and Output Signals

• 5 digital inputs (5–30 VDC)
• Encoder pulse and line drive outputs
• Supports multiple pulse types and communication standards

Communications and Standards

• EtherCAT compliance
• Supports CANopen and Profinet
• Grounding terminals (2×M4) for safety and noise reduction

Protection and Safety Features

• Electrical protections: overcurrent, overvoltage, undervoltage, overload, regeneration error, overspeed
• STOFS02 safe torque off function supported
• Alarm recording and diagnostics for fault analysis

Installation and Mechanical Details

• Base-mounted installation
• Standard flange and mounting hole patterns
• Power and encoder cable lengths standardized (~300±50 mm)
• Options for waterproof and aviation plugs for harsh environments

Graphs and Performance Curves

Torque-speed characteristic curves for various motor models illustrate continuous and repeated torque capabilities up to 8000 rpm, aiding in motor selection based on performance requirements.

Summary of Critical Parameters

• Power: 50W to 7.5kW
• Voltage: 200VAC / 400VAC
• Encoder resolution: 17-bit or 23-bit absolute
• Communication: EtherCAT, CANopen, Profinet
• Protection: IP20, multiple electrical protections, STOFS02 safety
• Operating environment: below 1000m altitude, specified temperature/humidity
• Installation: base-mounted with standardized flange and holes

Best Practices and Recommendations

• Use built-in brake resistance for >400W models to ensure safe regenerative braking
• Configure soft start time to minimize mechanical stress
• Ensure proper grounding via provided terminals to reduce noise
• Utilize alarm recording and diagnostics for preventive maintenance
• Select encoder type and communication protocol per application needs

Technical Summary of Motor Specifications and Models

Motor Types and Encoder Specifications

Models include 4UZK, EM3A, EM3J, EM3G with encoder options of 17-bit ('T') and 23-bit ('L') absolute encoders. Shaft ends vary (straight keyed, threaded), with brake and oil seal configurations available.

Electrical and Mechanical Specifications

• Voltage: 200VAC, 400VAC, or 24VDC depending on model
• Current: Rated and max currents specified (e.g., 15A)
• Power: 0.2kW to 7.5kW
• Speed: 1500 or 3000 rpm, continuous and repeated ratings
• Torque: Rated, max, and holding torque (for brake models)
• Motor inertia: low to medium (10^-4 kg·m²)
• Allowable shaft loads: radial and axial in Newtons
• Weight: approx. 6.8 kg to 50 kg depending on model

Mechanical Dimensions and Mounting

Flange diameters from 40mm to 130mm; mounting holes (e.g., M6×20, M12×25) standardized for compatibility. Trunnion and drive options noted.

Brake and Seal Options

Brake holding torque varies by size; configurations include presence/absence of oil seals and brakes, affecting protection and stopping.

Connector and Cable Types

Power and encoder connectors available in standard, waterproof, and aviation plug types. Cable lengths typically 300±50 mm.

Model Variants and Ordering Codes

Extensive model codes specify power, encoder, shaft end, brake, and plug type (e.g., EM3A-A5ALA221, EM3J-02ATA221) to facilitate precise ordering.

Performance Curves and Graphs

Torque-speed curves for models like EM3J-04A and EM3G-09 show continuous and repeated work capabilities, guiding motor selection.

Notes and Recommendations

• Parentheses indicate brake-equipped motor specs
• Distinguish continuous vs repeated work ratings
• Encoder resolution impacts control precision
• Select shaft end and brake configuration carefully for integration and safety

Critical Information Summary

• Match motor size and power to torque/speed needs
• Choose encoder resolution per accuracy requirements
• Consider brake and oil seal for safety/environmental protection
• Verify allowable shaft loads to avoid mechanical failure
• Use specified flange and mounting hole dimensions
• Ensure voltage/current compatibility
• Consult torque-speed curves for performance under load

Technical Document Summary: Motor and Driver Specifications and Connections

Motor Power Ratings and Models

• Power: 850W to 7.5kW
• Use aviation plugs for electrical connections
• Flange sizes: 130mm and 180mm
• Model codes (e.g., EM3G-09ATA224) indicate motor specs
• Input power: 3-phase AC, 200–240V or 380–440V

Motor and Driver Connection Details

• Connectors: motor power, encoder, IO plugs (SM-26J, SM-50J)
• Optional flexible and shielded cables for vibration and EMI protection
• Wiring includes waterproof and standard cables
• Pin assignments detailed for motor phases (U, V, W), grounding (FG), battery, and encoder signals
• Connector types vary by function: main circuit, control loop, encoder

Driver Specifications and Models

• ED3L series drivers cover 0.05kW to 0.4kW and above
• Built-in regenerative resistors with specified external resistance and breaker ratings
• Models include ED3L-10A, ED3L-15D, ED3L-75D with single or three-phase AC input
• Connectors and pinouts specified for power, control, and feedback

Wiring and Pinout Standards

• Detailed pin assignments ensure correct wiring for power, control, feedback
• Color coding and visibility notes assist installation and maintenance
• Standard grounding and power supply wiring practices emphasized

Additional Notes and Recommendations

• Flexible cables recommended for applications with movement/vibration
• Shielded cables reduce EMI but may be unmarked
• Correct motor-driver matching critical for performance and safety
• Adherence to connector and pinout standards essential to avoid damage

Summary Table Highlights

Conclusion

The Summa ED3L series provides a robust, high-performance digital AC servo system with comprehensive motor and driver options. Detailed mechanical, electrical, and communication specifications support precise, reliable motion control for modern industrial automation. Proper selection of motor models, encoder types, brake options, and adherence to wiring and installation standards are critical for optimal system performance and safety.