Product Description
The Allen-Bradley 1398-DDM-019X is a digital AC servo drive from the Allen-Bradley Kinetix 6000 series. This drive is specifically designed as a multi-axis module or a dual-axis module, as indicated by “DDM” (Dual Axis Drive Module), which allows it to control two independent servo motors from a single physical module, significantly saving cabinet space and wiring complexity. The “019” in the part number typically refers to a continuous current rating, often 19.0 A rms, or a specific power capacity per axis. The “X” at the end of Kinetix 6000 part numbers usually denotes a specific feature or option, such as safe torque-off (STO), specialized feedback interface, or a regional variation.
The Allen-Bradley 1398-DDM-019X is part of a high-performance integrated motion system, commonly used with the Allen-Bradley Kinetix 6000 series inverter and shunt modules. It connects to a common DC bus and provides highly precise control over motor speed, torque, and position. This drive is optimized for use with Allen-Bradley Kinetix motors equipped with absolute feedback (e.g., Hiperface, EnDat, or SinCos encoders), offering seamless integration and advanced motion capabilities. It is a critical component for applications requiring synchronized, high-speed, and high-precision multi-axis motion control, providing enhanced diagnostics and simplified cabling within a modular system architecture.
Product Parameters
The Allen-Bradley 1398-DDM-019X possesses the following key technical specifications:
| Parameter | Specification |
|---|---|
| Drive Series | Kinetix 6000 |
| Drive Type | Digital AC Servo Drive, Dual-Axis Module (DDM) |
| Input Power | Connected to a common DC Bus (typically 650-750V DC) from a Kinetix 6000 Inverter Module |
| Continuous Output Current | (Typically 19.0 A rms per axis, requires exact confirmation from official documentation for the ‘019’ designation) |
| Peak Output Current | (Higher than continuous, specific value requires full documentation) |
| Control Modes | Velocity, Torque, Position (Profiled, Camming, Gearing) |
| Feedback Support | Absolute Encoders (e.g., Hiperface, EnDat, SinCos), possibly incremental (depending on ‘X’ option) |
| Communication | SERCOS interface (via Kinetix 6000 Integrated Axis Module or Controller) |
| Safety Features | Safe Torque-Off (STO) is commonly indicated by ‘X’ suffix in Kinetix 6000 |
| Mounting | Rack-mounted within Kinetix 6000 system |
| Cooling | Convection cooled (internal fans if applicable) |
| Certifications | CE, UL, cUL (typical for Allen-Bradley drives) |
| Programming/Configuration | Studio 5000 Logix Designer (Integrated Motion on EtherNet/IP for newer controllers) |
Advantages and Features
The Allen-Bradley 1398-DDM-019X offers numerous advantages and features, especially for multi-axis motion control:
- Dual-Axis Control (DDM): Controls two independent servo motors from a single module, significantly reducing panel space, wiring, and overall system cost.
- Integrated Motion (SERCOS/EtherNet/IP): Designed for seamless integration with Allen-Bradley Logix controllers (ControlLogix, CompactLogix) via SERCOS (for older systems) or Integrated Motion on EtherNet/IP, simplifying programming and coordination of complex motion.
- High Performance: Delivers precise and dynamic control over motor speed, torque, and position, enabling accurate and repeatable motion profiles for demanding applications.
- Absolute Feedback Support: Optimized for absolute feedback devices, eliminating the need for homing cycles after power loss and improving machine restart times.
- Common DC Bus Architecture: Part of a modular system that shares a common DC bus, leading to energy savings through regenerative braking (energy from decelerating axes can be used by accelerating axes) and simplified power wiring.
- Safety Features (STO): The “X” often indicates Safe Torque-Off (STO) functionality, which is a key safety feature for preventing unexpected machine startup, reducing wiring for safety circuits.
- Advanced Diagnostics: Provides comprehensive diagnostic information, aiding in rapid troubleshooting and minimizing downtime.
- Optimized for Kinetix Motors: Designed to work optimally with Allen-Bradley Kinetix servo motors, offering simplified setup and guaranteed performance.
Application Areas and Application Cases
The Allen-Bradley 1398-DDM-019X is ideally suited for complex, high-speed, and high-precision multi-axis motion control applications across various industries:
- Packaging Machinery: High-speed cartoning machines, filling machines, robotic pick-and-place systems, and palletizers requiring synchronized control of multiple axes for optimal throughput and accuracy.
- Material Handling Systems: Automated storage and retrieval systems (AS/RS), gantry robots, and complex conveyor lines where precise positioning and synchronized movement of heavy loads are crucial.
- Printing and Converting: Web handling, cutting, slitting, and registration control in printing presses and converting lines, demanding highly coordinated and precise multi-axis motion.
- Assembly and Robotics: Multi-axis robotic cells, automated assembly lines in automotive, electronics, and medical device manufacturing, requiring precise and synchronized movement of multiple robotic arms or actuators.
- Textile Machinery: Advanced textile machines requiring coordinated control of multiple rollers, spindles, or guides for high-speed production.
Application Case: In a high-speed pharmaceutical packaging plant, a 1398-DDM-019X dual-axis servo drive was used to control two critical axes on a blister packaging machine: the forming station and the sealing station. Previously, these were controlled by separate single-axis drives, leading to complex wiring and coordination challenges. By using the 1398-DDM-019X, the plant significantly reduced cabinet space and simplified wiring. The integrated motion control via a ControlLogix PLC with SERCOS communication (or later EtherNet/IP) allowed for highly precise synchronization between the forming and sealing processes, ensuring consistent blister quality and reducing material waste. The high continuous current rating of the 1398-DDM-019X easily handled the dynamic loads of both axes operating at high speeds. The STO functionality (often associated with the ‘X’) also simplified machine safety compliance, enabling faster and safer maintenance procedures.
Competitive Comparison
The Allen-Bradley 1398-DDM-019X competes in the high-performance multi-axis servo drive market. Major competitors include Siemens (e.g., SINAMICS S series with multi-axis modules), Bosch Rexroth (e.g., IndraDrive M multi-axis systems), and Beckhoff (e.g., AX5000 TwinCAT multi-axis drives). Key competitive differentiators include:
- Integrated Motion on EtherNet/IP (Rockwell Ecosystem): For modern Rockwell Automation users, the seamless integration with Logix controllers via Integrated Motion on EtherNet/IP is a significant advantage, simplifying programming, diagnostics, and overall system architecture compared to integrating third-party drives.
- Dual-Axis Design: The “DDM” dual-axis module is a strong competitive point for saving space and wiring in multi-axis applications, a feature also offered by competitors but often with different module configurations.
- Common DC Bus Architecture: The Kinetix 6000’s common DC bus and shared power supply/shunt modules provide energy efficiency benefits through regenerative braking, which is a common feature among high-end servo systems.
- SERCOS Interface (Legacy): For existing Kinetix 6000 installations, the SERCOS interface provides deterministic, high-speed communication, although newer Rockwell systems are transitioning to EtherNet/IP.
- Robustness and Support: Allen-Bradley products are known for their industrial robustness, extensive documentation, and global support network, which adds significant value compared to some newer or smaller competitors.
