Product Announcement from Emerson Industrial Automation – Drives & Motors


Compact Servo motor controls - Epsilon EP-Image

Epsilon EP with Position TrackerTM

The Epsilon EP has been designed with the features and capabilities requested by OEM and machine builders: economically priced models from simple base servo amplifiers to a fully programmable motion controllers, a wider power range while maintaining a compact size (six-inch panel depth), and the "Motion Made Easy" simplicity of Emerson's PowerTools Pro software.

In addition to meeting these demands, the Epsilon EP introduces Position Tracker™, which can replace a PLC-based position control module with a simple analog signal or fieldbus register.

Typically, a servo drive controls a motor's velocity or torque based upon an analog command input. An external position controller is needed to calculate the position error and adjust the analog command to cause the motor to adjust its actual position.


With the Position Tracker™ mode, the closed loop feature of the position controller has been brought into Epsilon EP. The user simply needs to feed the drive an analog or fieldbus signal that is proportional to absolute motor position.


No complex ladder logic to send acceleration, velocity and position information, just predefine the maximum values of acceleration and velocity in easy-to-use and free PowerTools Pro software, then send the position information via analog input or over the network (Modbus RTU, Modbus TCP/IP, EtherNet/IP, or DeviceNet, Profibus DP-Summer '07), and the drive will command the motor to that exact position.

The CPU continually monitors the register for changes and commands the motor when changes occur. Network or analog signal loss can be enabled for fault detection. This solution offers all of the advantages of a fully closed loop servo without the cost of a traditional position controller.

The Epsilon EP is an Emerson "Motion Made Easy" solution, which promises that your application will be up in hours rather than days or weeks. Base, Index and Programmable models have input voltages from 90 to 264VAC, 47 to 63kHz, and continuous output current from 2.2Arms, 4Arms, 6.5Arms, 9Arms, providing up to 100 lb-in cont. torque.

Emerson Control Techniques
7078 Shady Oak Road
Eden Prairie, MN 55344

800-893-2321

 
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