ACS SP+SAR-LT-4E – 4-Axis Integrated EtherCAT Motion Controller & Servo Drive | SP+ / SAR-LT Platform
Engineering Background: The ACS SP+SAR-LT-4E is a compact, high-performance motion controller from ACS Motion Control’s flagship SP+ platform, integrating four servo drive axes with a real-time EtherCAT master in a single DIN-rail-mountable unit. Designed for OEMs and system integrators demanding deterministic multi-axis coordination, the SP+SAR-LT-4E eliminates the traditional separation between motion controller and drive amplifier — reducing panel footprint, wiring complexity, and commissioning time.
Product Positioning: Targeted at precision automation applications including semiconductor handling, laser processing, medical robotics, and advanced machine tools, the SP+SAR-LT-4E delivers synchronized multi-axis motion with sub-microsecond jitter. It is the preferred platform for engineers replacing legacy motion cards or upgrading from distributed drive architectures to a unified, software-configurable motion system.
Complete Technical Specifications
- Model: SP+SAR-LT-4E
- Manufacturer: ACS Motion Control
- Platform / Series: SP+ / SAR-LT
- Number of Axes: 4 (expandable via EtherCAT slaves)
- Communication Protocol: EtherCAT (IEC 61158), 100 Mbps
- Motion Network Cycle Time: 100 µs (configurable)
- Drive Type: Integrated servo drive (SAR-LT low-power series)
- Feedback Supported: Incremental encoder, Sine/Cosine, EnDat 2.2, BiSS-C, Resolver
- I/O: Digital I/O per axis + general-purpose I/O expansion via EtherCAT
- Programming Environment: ACSPL+ (ACS proprietary), SPiiPlus MMI Application Studio
- Host Interface: Ethernet (TCP/IP), USB
- Operating Voltage: Refer to OEM datasheet (typically 24 VDC logic + motor bus)
- Mounting: DIN rail / panel mount
- Weight: 13.6 kg
- Operating Temperature: 0 °C to +45 °C
- Certifications: CE, UL (verify with current OEM documentation)
- Country of Origin: Israel
Proven Application Environments
- Semiconductor wafer handling and die bonding systems
- Laser cutting, marking, and micro-machining platforms
- Medical robotics and laboratory automation
- Precision gantry and Cartesian motion systems
- Optical inspection and metrology equipment
- Advanced CNC and multi-axis machine tools
- Photovoltaic cell manufacturing lines
Engineering Advantages
- Integrated Architecture: Controller + 4 servo drives in one unit — eliminates inter-device cabling and reduces MTTR.
- Deterministic EtherCAT Master: Hard real-time synchronization across all axes with <1 µs jitter, critical for coordinated multi-axis profiles.
- ACSPL+ Scripting: Powerful motion language supporting multi-tasking, event-driven programming, and complex trajectory generation natively on the controller.
- Universal Feedback Compatibility: Supports all major encoder standards without external interface modules.
- Scalable I/O: Expand digital/analog I/O via standard EtherCAT slave modules without changing the controller.
- SPiiPlus SDK: Full .NET / C++ / LabVIEW API for seamless integration into existing automation software stacks.
System Architecture & Signal Flow
The SP+SAR-LT-4E operates as an EtherCAT master, managing up to 4 integrated servo axes and an unlimited number of EtherCAT slave devices on the same network segment. The internal ACSPL+ real-time kernel executes motion programs, PLC-style logic, and safety monitoring concurrently. Host PC communication occurs over Ethernet (TCP/IP) or USB using the SPiiPlus communication library, enabling remote monitoring, program upload/download, and live parameter tuning without interrupting motion execution.
Signal flow: Host PC → Ethernet/USB → SP+SAR-LT-4E Controller Core → ACSPL+ RT Kernel → EtherCAT Bus → Integrated Servo Drives (×4) → Motor & Feedback Devices
Sourcing & Quality Verification
- Source: Authorized distribution channel and verified secondary market — all units inspected prior to shipment.
- Condition: New (factory-sealed) or Refurbished (tested to OEM specification) — specified at time of quotation.
- Traceability: Serial number verification available; OEM firmware version documented.
- Testing: Power-on functional test and communication handshake verification performed on all units.
- Warranty: 12-month Konmask warranty on all shipped units.
Procurement Process
- Submit RFQ via Konmask.com/contact or email support@konmask.com.
- Receive formal quotation with lead time, condition, and firmware version within 24 business hours.
- Confirm purchase order — payment via T/T, PayPal, or trade terms for qualified accounts.
- Unit ships with inspection report, packing list, and tracking number.
- Post-delivery technical support available via email and WhatsApp.
Technical FAQ
Q: Can the SP+SAR-LT-4E control more than 4 axes?
A: Yes. Additional axes can be added by connecting ACS EtherCAT slave drive modules (e.g., SAR-LT slaves) to the EtherCAT bus. The controller supports up to the maximum EtherCAT network capacity.
Q: Is ACSPL+ programming required, or can I use standard G-code?
A: ACSPL+ is the native language. G-code interpretation is available via ACS’s optional CNC software package. Third-party wrappers using the SPiiPlus API are also common in the field.
Q: What is the difference between SP+SAR-LT-4E and SP+SAR-4E?
A: The “LT” designation indicates the Low-power (Light) drive variant, optimized for smaller servo motors. The standard SAR-4E supports higher continuous and peak current ratings. Confirm motor specifications before selecting the variant.
Q: Do you provide the SPiiPlus MMI software license?
A: Software licensing is managed by ACS Motion Control. Konmask can advise on the correct license SKU and connect you with the appropriate channel. Contact us for details.
Q: What is the lead time for the SP+SAR-LT-4E?
A: Typically 3–10 business days for in-stock units. Custom configurations or factory-new orders may require 4–12 weeks. Contact us for current availability.
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