Sigmatek SDD340-46 Servo Drive 14kVA
The Sigmatek SDD340-46 Servo Drive with 14kVA rating is a high performance motion control module for industrial automation. It is identified by the SDD340-46 model reference. The drive is part of the Sigmatek DIAS system and uses VARAN for real time communication. It controls electric motors for positioning, speed regulation and torque control. The SDD340-46 is used in packaging machines, printing presses, injection molding machines and robotics.
Drive Function
The SDD340-46 converts electrical power into controlled output for a motor. It adjusts voltage, current and frequency to achieve the required motion. The drive supports position, speed and torque control modes. It receives commands from the CPU module and feedback from encoders or resolvers. Closed loop control ensures accurate and repeatable motion. Protection functions include overcurrent, overvoltage and thermal monitoring.
Power Rating
The 14kVA rating indicates the drive can handle motors in this power class. The exact motor compatibility depends on voltage, current and duty cycle. The drive is designed for continuous operation and high overload capacity. It can accelerate and decelerate loads quickly while maintaining stability. Cooling is provided by forced air or heat sink depending on installation.
VARAN Communication
VARAN is a real time Ethernet protocol developed by Sigmatek. It provides fast and deterministic communication between the drive and the control system. VARAN allows short cycle times for synchronized motion. The interface supports daisy chain topology and reduces wiring complexity. It also enables diagnostics and parameter setting from the CPU.
Applications
The SDD340-46 is used in many industrial machines. Typical applications include packaging lines, printing presses, injection molding machines, textile machinery, woodworking equipment and robotics. It is also used in handling systems, assembly stations and test benches.
Installation Notes
Installation should follow the drive manual. The module must be mounted in a compatible rack or cabinet with sufficient cooling. Power and motor cables should be sized correctly and shielded where required. Grounding is important for safety and noise reduction. After installation, parameters must be set for the motor and application.
Maintenance
Regular maintenance includes checking cooling fans, heat sinks and filters. Dust should be removed to prevent overheating. Terminal connections should be checked for tightness. Only qualified personnel should service the drive.
Conclusion
The Sigmatek SDD340-46 Servo Drive 14kVA is a powerful and reliable motion control solution. It combines high power output, real time VARAN communication and advanced diagnostics. Correct installation and maintenance help ensure long service life.




