Servo Drive for High Precision Speed Torque Rotary Actuators

●  Introduction

The servo drive is the core control unit of a servo system, receiving command signals and converting them into current signals to achieve precise control of position, speed, and torque in rotary actuators. Designed for high-precision motion control applications, its core functions include signal conversion, closed-loop feedback adjustment, and dynamic parameter tuning, supporting fully digital control algorithms (e.g., vector control) and real-time status monitoring. Servo drives are widely used in industrial robots, CNC machines, automated production lines, and other applications requiring high dynamic response and positioning accuracy.
Contact Us

Features 

● Structural Characteristics
  • Modular design integrating high-precision encoders and intelligent power modules (IPM), offering compact size and strong EMI resistance.

  • Supports multiple control modes (position/speed/torque) and is compatible with both AC permanent magnet synchronous motors and DC servo motors.


● Control Algorithm

  • Vector-based triple-loop control (current/speed/position) optimizes dynamic response accuracy and stability.

  • Implements complex control logic via digital signal processors (DSPs), supporting networked communication and remote debugging.


● Performance Highlights

  • Micron-level positioning: High-resolution encoder feedback eliminates cumulative errors, achieving sub-micron repeatability.

  • Rapid response: Low electromechanical time constant enables millisecond-level start/stop or direction reversal, ideal for high-frequency motion.

  • Wide speed range: Supports low-speed high-torque and high-speed light-load operation, with a speed ratio exceeding 1:5000.


● Adaptability

  • Compatible with standard interfaces (e.g., EtherCAT, CANopen) for seamless PLC/system integration.

  • Built-in soft-start circuits and overvoltage/overcurrent protection reduce startup surges and failure risks.

Advantages

● High-efficiency control

Torque-dense design and regenerative braking achieve >90% energy efficiency.


● Superior dynamic performance

Full digital control enables <1ms response times for complex motion planning.


● Safety redundancy

Dual closed-loop verification (encoder + sensor) and fault self-diagnostics ensure reliability.


● Environmental resilience

High-temperature components and dust-resistant coatings support operation from -20°C to 70°C.

Specification

Sheet 1


SeriesN:Ethercat
P:Pulse Type
A:CANlink Type
C:CANopen Type
S:220V
T:380V
Rated CurrentUniversal TypeBlank: Standard Type
FH[1]:High Protection
FS:Functional Safety Model (STO only)
220VACSV670NS1R6I-
SV670NS2R8I-
SV670NS5R5I-
SV670NS7R6I-
SV670NS012I-
SV670NS018I-
SV670NS022I-
SV670NS027I-
380VACSV670NT3R5I-
SV670NT5R4I-
SV670NT8R4I-
SV670NT012I-
SV670NT017I-
SV670NT021I-
SV670NT026I-