High Performance EtherCAT L8 Premium AC Servo Drive

EtherCAT servo system, rotary AC servo motor, high precision servo drive, 3.5kHz speed loop bandwidth, 125μs EtherCAT cycle, SIL3 STO safety torque off, 26bit multi-turn absolute encoder, gantry synchronization, full closed-loop control, semiconductor automation servo, lithium battery equipment servo, laser processing servo, photovoltaic manufacturing servo

Category: Servo Motors and Drives

Description
Technical Parameters

L8EC EtherCAT Rotary AC Servo | 3.5kHz Bandwidth SIL3 STO High Precision Servo Motor

Industry-leading high-dynamic motion control solution for high-precision smart manufacturing

The L8EC series is our flagship high-performance rotary alternating current servo system built exclusively for deterministic EtherCAT industrial bus communication. Designed to break the limits of traditional servo responsiveness, synchronization accuracy and operational safety, this integrated servo drive & motor combo delivers ultra-fast dynamic response, micron-level positioning precision and certified functional safety. Widely adopted for demanding multi-axis synchronous automation equipment, it upgrades motion stability, production efficiency and yield rate for precision manufacturing scenarios worldwide.

Working Principle

Powered by high-speed industrial processor and EtherCAT distributed clock technology, the L8EC realizes real-time bidirectional data transmission between motion controller and servo axes. It collects high-resolution position feedback via 26-bit multi-turn absolute encoder, executes rapid closed-loop calculation of speed loop, current loop and position loop, and precisely outputs torque & speed to the rotary servo motor. Built-in brake control, dynamic braking module and STO safety mechanism guarantee stable operation under high-speed acceleration/deceleration, vertical load lifting and emergency stop conditions; professional algorithms support gantry synchronous calibration and super following control to eliminate motion deviation in multi-axis linkage systems.

Core Performance Specs

Speed loop bandwidth: 3.5kHz, ultra-fast dynamic response, quick suppression of mechanical resonance
EtherCAT bus synchronous cycle: 125μs, ultra-low latency, consistent multi-axis synchronization
Standard configuration: Direct drive holding brake + dynamic braking unit
Functional safety: STO (Safe Torque Off) certified to SIL3 safety level
Position feedback: 26-bit multi-turn absolute encoder, no homing required after power failure
Maximum rated speed: 7000rpm, supports high-speed continuous operation
Built-in functions: One-click high-performance auto-tuning, full closed-loop control, gantry synchronization, super following control
Reserved port: Integrated independent brake output terminal

Core Advantages

Break away from conventional servo limitations, 6 major industry-leading strengths to empower smart manufacturing upgrading:
1. Ultra-High Dynamic Response: 3.5kHz Speed Loop Bandwidth
  Far surpasses mainstream industrial servo standards. Rapidly responds to complex motion commands, shortens equipment settling time, reduces vibration and positioning error, effectively raising machine throughput by 20%–35% for high-cycle production lines.
2. Deterministic Real-Time EtherCAT Communication (125μs Sync Cycle)
  Ultra-short bus cycle brings nanoscale synchronization jitter across multiple axes. Perfect for gantry equipment, multi-station assembly and precision linkage devices, avoiding asynchronous deviation and ensuring consistent processing accuracy.
3. Complete Standard Safety & Braking Configuration
  Direct drive holding brake comes standard for vertical axis load anti-drop; dynamic braking module handles rapid deceleration & emergency stop. SIL3-grade STO safety torque-off protects operators and mechanical structures during system faults, fully complying with global industrial safety norms.
4. 26-bit High-Resolution Multi-Turn Absolute Encoder
  16x higher resolution than ordinary 23-bit encoders, ultra-fine position feedback realizes micron-level repeat positioning accuracy. Stores absolute position data permanently without battery backup, no repeated homing after power cut, greatly simplifying equipment commissioning and maintenance.
5. Powerful Built-In Motion Control Algorithms
- One-click auto-tuning: Automatically matches mechanical inertia, suppresses resonance, cuts commissioning time by over 70%
- Full closed-loop control: Eliminates backlash errors of ball screw/transmission structure
- Gantry synchronization & super following: Ensures dual-axis synchronous movement without offset, ideal for large-format laser cutting, gantry machine tools
1. 7000rpm High-Speed Stable Operation
  Max rotating speed up to 7000rpm adapts to high-speed scribing, drilling, dispensing and material cutting processes, balancing high speed and precision without sacrificing operational stability.

Application

Tailored for high-precision, high-efficiency smart manufacturing industries with strict motion control requirements:

✅ Semiconductor Manufacturing

Wafer probing equipment, chip packaging machines, semiconductor inspection platforms, precision dispensing devices; demands ultra-low vibration, high positioning repeatability and stable multi-axis synchronization to avoid damaging delicate chips and wafers.

✅ 3C Consumer Electronics Industry

PCB routing & drilling machines, FPC flexible circuit processing, precision dispensing, mobile phone assembly & testing equipment; adapts to frequent start-stop, high-speed reciprocating motion and tiny component assembly.

✅ Precision CNC Machine Tools

Small precision milling machines, engraving machines, gantry machining centers; gantry synchronization and full closed-loop control guarantee workpiece machining flatness and dimensional tolerance.

✅ Laser Processing Equipment

Laser cutting, laser scribing, laser welding, laser marking machines; high speed + high synchronization improves cutting edge quality and processing efficiency for metal, glass and composite materials.

✅ Photovoltaic Production Line

Silicon wafer cutting, solar cell string welding, PV module lamination equipment; stable high-speed operation ensures consistent yield in photovoltaic mass production.

✅ Lithium Battery & Energy Storage Equipment

Battery cell stacking, tab laser welding, module PACK assembly, battery inspection automation lines; safety brake and STO function match lithium battery production’s strict safety standards.

Why Choose L8EC Series Servo?

Industry-leading dynamic performance & synchronization accuracy for premium automation equipment differentiation
All-in-one standard configuration (brake, dynamic brake, SIL3 STO) saves additional component procurement cost
Simple commissioning with one-click auto-tuning, lowering technical threshold for machine builders
Strict industrial-grade reliability, stable operation in dustproof, temperature-variable factory environments
Full technical support for EtherCAT system integration, parameter customization and after-sales debugging

Technical Parameters

Model	L8P/L8EC
Rated Power(W)	100-2000
Rated Current(Arms)	4.8-36
Max Current(Arms)	4.8-36
Power Supply	AC220 Single Phase / 3 Phase
Input Interface	Pulse / RS485 / Analog
CE Certificate	Yes