General-Purpose Servo Drives

General-Purpose Servo Drives

DH-Robotics General-Purpose Servo Drive Series features a dual-axis and four-axis integrated architecture based on the EtherCAT fieldbus. With high response speed, precise synchronization, and excellent system stability, it is well suited for multi-axis coordination and complex motion control applications.

Offering broad motor compatibility, this series can flexibly support various servo motor types. It is widely used in automation equipment and intelligent production lines, providing stable, reliable, and powerful motion control and drive performance across diverse application scenarios.

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Product Features

Multi-Axis Synchronization & High Response

Based on EtherCAT communication, the drive supports nanosecond-level multi-axis synchronization and high-speed response with a 3.5 kHz velocity loop, ensuring smooth, precise motion control. It is compatible with servo motors, linear motors, and voice coil motors, and supports multiple encoder protocols with up to 24-bit high-resolution feedback.

Auto Tuning & Intelligent Identification

Built-in intelligent algorithms enable automatic tuning and load identification, significantly reducing commissioning time. The drive can automatically identify inertia, friction, and cogging effects, improving system stability while simplifying installation and configuration.

High-Precision Force Control & Compensation

With a hardware current loop and high-accuracy current sampling, the drive supports soft-landing force control and mechanical error compensation. It enables precise force output down to 0.01 N and maintains consistent force accuracy across the full stroke.

Flexible Control & System Expandability

The drive supports position, velocity, torque, and hybrid control modes, with a multi-axis integrated design that allows vertical expansion and up to 3× overload capability. Multiple industrial communication protocols are supported, providing strong flexibility for complex automation systems.

Product Parameters

ParameterSAC-N2SAC-NP2SAC-NP4
Number of controllable axes224
Supported control methodsEtherCAT, I/OEtherCAT, I/OEtherCAT, I/O
EtherCAT control modesPosition, Velocity, Torque, Mixed modePosition, Velocity, Torque, Mixed modePosition, Velocity, Torque, Mixed mode
Logic voltage24 V24 V24 V
Motor voltage24 V / 48 V24 V / 48 V24 V / 48 V
ModelsSAC-N2-EC-U-03A1-03A1SAC-N2-EC-U-10A1-10A1SAC-NP2-EC-U-03A2-03A2SAC-NP2-EC-U-10A2-10A2SAC-NP4-EC-U-03A3-03A3-03A3-03A3
SAC-NP4-EC-U-10A3-10A3-10A3-10A3
SAC-NP4-EC-U-03A4-03A4-03A4-03A4
SAC-NP4-EC-U-10A4-10A4-10A4-10A4
Rated output current3A10 A3A10 A3A10 A
Peak output current9A18 A9A18 A9A30 A
Rated output power24V, 72W
48 V, 144W		24 V, 240 W
48 V, 480 W		24V, 72W
48 V, 144W		24 V, 240 W
48 V, 480 W		24V, 72W
48 V, 144W		24 V, 240 W
48 V, 480 W
Encoder supportBiSS-C / SSI / EnDat / Tamagawa / ABZBiSS-C / SSI / EnDat / Tamagawa / ABZA3: Incremental / BiSS-C / Tamagawa / ABZ + Hall A4: Incremental / SSI / ABZ + Hall
Limit / Home / ProbeSupportedSupportedSupported
Dimensions179 × 107.65 × 29 mm179 × 107.65 × 29 mm179 × 119.3 × 50 mm
Minimum EtherCAT cycle200 μs200 μs1 ms
Overload capacity3× overload for > 2.5 s
Filters≥ 4
Closed-loop controlSupported
Gantry controlns-level synchronization
High-resolution encoder & samplingUp to 23 bit
Automatic gain tuningSupported
ProtectionOver-current, over-voltage, over-temperature; STO
Speed loop bandwidth3.5 kHz
Weight< 0.6 kg
Protection ratingIP20
Operating temperature0–55 °C

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