LPA Low Profile Rotary Actuator with Integrated Servo Drive
Next generation low profile integrated actuator with CANopen or EtherCAT communication options featuring 48VDC supply dual absolute encoders and up to 65536 device network support
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Product Overview
The LPA Integrated Series features high precision Harmonic Drive gearing with brushless servo motor dual absolute encoders and integrated servo drive with CANopen or EtherCAT communication. Size 20 with gear ratios 51 81 and 101. Maximum torque 34 to 57 Nm. Mass 1.4 kg. 48VDC nominal 24-60V range. EtherCAT option is 100x faster than CANopen. Moment stiffness 21 x 10 to the 4th Nm/rad.
The LPA IDT is a fully integrated rotary actuator combining servo motor, harmonic gear reducer, encoders, servo electronics, and compact mechanical packaging in a single assembly.
8 Integrated Core Components
Unlike conventional joint assemblies that require separate servo drives, external encoders, and third-party gear units, the LPA IDT consolidates critical subsystems into a single bolt-on module — reducing wiring complexity and shortening integration time.
Brushless Servo Motor
Optimised for high-cycle duty in collaborative robot applications
Harmonic Gear Reducer
Strain-wave gearing in — ratios
Dual Absolute Encoders
High-resolution position feedback for precise closed-loop motion control
Integrated Servo Drive
Compact embedded control electronics for simplified system integration
Friction Brake
Integrated holding brake for gravity-loaded and safety-critical joints
Temperature Sensor
Built-in thermal monitoring for continuous-duty protection
Torque Estimation
Supports controlled motion and load monitoring without external sensors
Through-Bore Design
Enables internal cable routing and cleaner multi-axis packaging
Built-in Servo Drive & Communication Protocols
The onboard servo electronics reduce external cabinet requirements and simplify wiring. Motion control parameters can be tuned through the supported communication interfaces.
Fieldbus Protocols
- EtherCAT
- CANopen
- Modbus
- RS485 serial interface
I/O & Control Interfaces
- Analogue command input
- Pulse & direction control
- Digital I/O
- Safe Torque Off (STO)
- External feedback support on selected versions
Dual Absolute Encoder — Dual-Loop Position Control
Integrated actuator families use feedback architecture intended for accurate closed-loop motion, improved repeatability, and simplified restart after controlled power cycles.
Exact encoder architecture varies by family and model. Refer to product-specific technical data and RFQ review for confirmation.
Integrated Friction Brake
Gravity-loaded joints may require a holding brake. The LPA IDT integrates brake functionality within the actuator package for simplified mechanical design.
Holding Function
Supports static load holding in gravity-loaded axes
Fast Engagement
Integrated design reduces external brake hardware requirements
Position Retention
Supports safer restart behavior after controlled stops
Safety Integration
Can be paired with STO and controller safety architecture
Robot Ready
Suitable for compact robotic and automation joint packaging
Simplified Assembly
Reduces separate brake selection and mounting work
Typical Deployment Environments
The LPA IDT is suited for collaborative robot arms, humanoid joints, exoskeleton actuation systems, and precision multi-axis automation where compact integrated packaging is important.
Key Specifications
Critical performance parameters at a glance
Technical Specifications
Overview
Performance Ratio 51
Performance Ratio 81
Performance Ratio 101
Structural
Product Attributes
Industrial Applications
These products support advanced robotics, automation, and industrial motion systems where precision, durability, and integration quality are important.
Industrial Automation
Used in automation systems where dependable motion performance and integration quality are required.
Robotics
Supports robotic subsystems that require reliable motion, control, or feedback components.
Machine Building
Integrated into custom equipment and OEM platforms where motion-system performance matters.
Precision Equipment
Applied in specialist systems requiring stable performance, compact packaging, and dependable operation.
Material Handling
Used in handling, transfer, and positioning systems across industrial applications.
Custom Engineering
Selected for engineered systems where application-specific performance and packaging are critical.
Factory Modification & Custom Sourcing
This product supports custom configurations and equivalent sourcing
Available Modifications
- •Torque and speed ratio customization
- •Mounting interface modifications
- •Connector and wiring specifications
- •Housing and enclosure options
Sourcing Options
- •Standard product sourcing
- •Equivalent product identification
- •Replacement part sourcing
- •Volume pricing (MOQ may apply)
Request Pricing & Availability
Submit an RFQ for standard products, custom configurations, or equivalent alternatives
Frequently Asked Questions
Technical answers sourced from engineering specifications and integration guides.
The LPA integrates Harmonic Drive gearing, brushless motor, dual absolute encoders, and a servo drive with CANopen or EtherCAT in a single compact actuator.
Have a technical question not answered above?
Our application engineers review every RFQ and respond with specification-matched recommendations.