The Emerson A6120 (9199-00002) is a high-performance digital servo drive designed for precise and dynamic motion control applications. Part of Emerson's comprehensive industrial automation portfolio, this drive delivers the power and intelligence to control synchronous and asynchronous servo motors with exceptional accuracy.
On a high-speed packaging line, a robotic arm must pick and place products onto a moving conveyor with millimeter precision. The Emerson A6120 servo drive is the key component controlling the robot's axis. It receives a position command from the master controller via a high-speed EtherCAT network and instantly calculates the precise current required by the servo motor to achieve the movement. The high dynamic response of the A6120 ensures the robot moves rapidly and stops exactly at the target location, maximizing throughput while maintaining flawless placement accuracy, which is critical for production efficiency and product quality.
Main Parameters | Value/Description |
Product Model | Emerson A6120 |
Order Code / Part Number | 9199-00002 |
Manufacturer | Emerson |
Product Category | Digital Servo Drive / Amplifier |
Input Voltage | Common three-phase AC voltage ranges (e.g., 200-480VAC) |
Output Current | Specific continuous and peak current rating (e.g., 20A RMS) |
Control Modes | Torque, Velocity, Position (CSP, CSV, CST) |
Feedback Interfaces | Supports EnDat, HIPERFACE®, resolvers, and standard sin/cos encoders |
Communication Protocols | Integrated support for EtherCAT, PROFIBUS-DP, Modbus TCP/IP |
Programmability | Integrated motion control functionality via programming software |
Safety Features | Integrated Safe Torque Off (STO) or other safety functions (depending on model) |
Protection Rating | IP20 for panel mounting |
The Emerson A6120 leverages advanced power electronics and control algorithms to deliver superior motion performance, characterized by several key innovations:
· •Innovation Point 1: Advanced Current Control Loop Technology: The A6120 features an extremely fast and precise current control loop. This allows for exceptionally high torque control bandwidth, which translates to better stiffness, smoother motion at low speeds, and higher accuracy in following demanding motion profiles. This is crucial for applications requiring precise force control or rapid acceleration.
· •Innovation Point 2: High-Speed Network Integration: A significant advantage is the native integration of real-time Ethernet protocols like EtherCAT. This allows the A6120 to be seamlessly integrated into a centralized or distributed clock architecture, enabling highly synchronized multi-axis motion with minimal communication jitter, which is essential for complex machinery.
· •Innovation Point 3: Comprehensive Built-in Diagnostics and Functionality: The drive includes extensive software tools for advanced setup, oscilloscope functionality, and detailed diagnostics. This allows engineers to quickly tune the servo loop, capture trace data of real-time operation, and proactively identify issues, reducing commissioning time and minimizing unplanned downtime.
A manufacturer of precision CNC machining centers was facing challenges with surface finish quality on complex contoured parts. The existing servo drives had limited bandwidth, causing slight following errors during high-speed contouring. By upgrading to the Emerson A6120 servo drives, the machine builder leveraged the drive's high feedback resolution and faster control loop. This resulted in a dramatic 50% reduction in following error, which directly translated to a superior surface finish, elimination of post-processing steps, and a stronger competitive edge in the high-precision machining market.
The Emerson A6120 is part of a complete motion control ecosystem. Essential related products include:
· •Emerson BRU/SBU Series Servo Motors: High-performance synchronous servo motors perfectly matched to the electrical and dynamic characteristics of the A6120 drive.
· •Emerson Unidrive M700: A flagship variable frequency drive; the A6120 shares similar engineering tools and communication options, simplifying system-wide control architecture.
· •Emerson Control Techniques IQ/IS Programmer: The unified software tool used for configuring, tuning, and diagnosing the A6120 and other drives in the family.
· •Emerson EZMotion Module: A optional plug-in module for adding complex multi-axis coordinated motion programming directly within the drive.
· •Emerson System Bus Interface Modules: Optional plug-in communication modules (e.g., for PROFINET) to adapt the A6120 to specific network requirements.
Installation of the Emerson A6120 requires qualified personnel. The drive is designed for panel mounting and must be connected to a suitable power source, motor, and feedback system. The use of shielded cables and proper grounding is critical for optimal performance and EMC compliance. Configuration is streamlined through the intuitive IQ/IS software, which provides wizards for automatic motor identification and basic setup.Routine maintenance involves periodic inspection of connections, cleaning of cooling fins, and checking for any fault history logged in the drive's memory. The advanced diagnostic capabilities allow for predictive maintenance by monitoring parameters like heat sink temperature and load profile. We provide comprehensive support, from initial system design and startup assistance to troubleshooting and firmware updates, ensuring you maximize the performance and longevity of your A6120 investment.
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