RELIANCE DDS-LPS power module – wide voltage input, meets the power supply needs of harsh industrial environments!

The Reliance Electric DDS-LPS is a highly respected and versatile family of digital DC drive systems, specifically engineered for precision speed control of DC motors in demanding industrial applications. As a cornerstone of the renowned Reliance Electric Dodge® and Master® product portfolios, the DDS-LPS series provides a robust and cost-effective solution for regulating motor speed, torque, and direction. This drive system is designed to interface seamlessly with standard separately excited DC motors, delivering smooth operation across a wide speed range with excellent torque characteristics.

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Description

The Reliance Electric DDS-LPS is a highly respected and versatile family of digital DC drive systems, specifically engineered for precision speed control of DC motors in demanding industrial applications. As a cornerstone of the renowned Reliance Electric Dodge® and Master® product portfolios, the DDS-LPS series provides a robust and cost-effective solution for regulating motor speed, torque, and direction. This drive system is designed to interface seamlessly with standard separately excited DC motors, delivering smooth operation across a wide speed range with excellent torque characteristics. The core value of the Reliance Electric DDS-LPS lies in its simplicity of setup, legendary durability, and ease of integration into both new machinery and existing upgrade projects, making it a go-to choice for a vast array of industrial motion control challenges.

Built with a focus on reliability and serviceability, the Reliance Electric DDS-LPS often features a non-volatile memory module that stores configuration parameters, significantly simplifying drive replacement and minimizing downtime during maintenance. Its design is optimized for a broad power range, catering to numerous applications from small machine tool auxiliaries to larger industrial processes. The Reliance Electric DDS-LPS represents a time-tested technology that continues to offer exceptional performance and value, supporting countless installations worldwide with proven, dependable operation that keeps production lines running efficiently.

DDS-LPS RELIANCE

DDS-LPS RELIANCE

Technical Specifications

Parameter NameParameter Value
Product ModelDDS-LPS
ManufacturerReliance Electric (part of Rockwell Automation)
Product TypeDigital DC Drive Controller
Input Power240V or 500V AC, 50/60 Hz (±10%)
Output PowerRanges from 2 HP (1.5 kW) to 1000 HP (750 kW) across the series
Output ControlRegulated DC voltage and current for motor armature
Field SupplyRegulated DC output for motor field control
Speed RangeBase speed range of 40:1; 100:1 or 1000:1 with optional tachometer feedback
Speed RegulationAs low as 0.1% of base speed with tach feedback; 2% with armature voltage feedback (IR Compensation)
Control InterfaceAnalog ±10V DC speed reference; digital start/stop and direction contacts
CommunicationOptional SCANport® and other communication modules available
DisplayLED status indicators; optional digital operator interface module
Protection FeaturesCurrent Limit, I²T Motor Overload, Line Loss, Over-Speed, Field Loss, Heatsink Overtemperature

Main Features and Advantages

Precision Control and Flexibility: The Reliance Electric DDS-LPS provides highly accurate speed control, maintaining set speed even under varying load conditions. Its digital architecture allows for precise tuning of acceleration and deceleration ramps, current limit, and IR compensation, ensuring optimized performance for the specific motor and mechanical system it controls. This flexibility makes the DDS-LPS suitable for a wide spectrum of applications, from constant torque to constant horsepower.

Rugged Reliability and Ease of Use: Engineered for the industrial environment, this drive is built to withstand electrical noise, vibration, and fluctuating temperatures. A key feature is its plug-in control and power modules, which drastically reduce mean-time-to-repair (MTTR). The use of a memory module allows all drive parameters to be transferred instantly to a replacement unit, getting equipment back online in minutes instead of hours. This design philosophy prioritizes minimal operational disruption.

Seamless Integration and Support: The Reliance Electric DDS-LPS is designed for easy integration into existing control systems using standard analog and discrete I/O signals. Furthermore, a range of optional communication adapters allows it to become a node on major industrial networks. Backed by the global technical support and extensive spare parts network of Rockwell Automation, the DDS-LPS offers long-term operational security and access to unparalleled expertise.

Application Field

The Reliance Electric DDS-LPS is a workhorse drive found in numerous industries that require robust and reliable adjustable speed control. It is exceptionally common in material handling, providing precise speed regulation for conveyor systems of all types, from slow-moving assembly lines to high-speed sorting and palletizing systems. Its strong starting torque and controllability make it ideal for hoists, cranes, and winches, where smooth operation and load holding are critical for safety and performance.

In the industrial manufacturing sector, the Reliance Electric DDS-LPS is extensively used to drive machine tools, including lathes, grinders, and milling machines, where a wide, controllable speed range is essential for different materials and cutting operations. It is also a fundamental component in the plastics industry, powering extruders and winders, and in the paper industry for controlling rolls and calendars. The drive’s durability and performance make it a trusted solution for these demanding, continuous-process environments.

DDS-LPS RELIANCE

DDS-LPS RELIANCE

Related Products

 

Reliance Electric SP600: An AC variable frequency drive (VFD) series, representing the modern alternative for applications where AC motor technology is preferred.

 

Reliance Electric GV3000: Another versatile AC drive series, often used for both simple and complex applications, offering more advanced features than the DDS-LPS.

 

Reliance Electric DDS-LPF: A closely related DC drive series within the same family, often differing in specific power ratings or feature sets.

 

Reliance Electric 6NZ00 Memory Module: The essential plug-in module used to store and transfer all configuration parameters for the DDS-LPS drive.

 

Reliance Electric DCP Digital Control Panel: An optional handheld programmer and display unit used for configuring and monitoring the drive.