The Epsilon Series is the most compact digital servo drive in the Control Techniques range. Designed to fit in 152mm deep cabinets, with cables attached. Epsilon drives still possess the functionality and flexibility found in our other drives and servos. There are three sizes of each Epsilon drive: 2 Amp, 3 Amp and 5 Amp, with the largest drive delivering up to 6Nm continuous torque. Each drive contains a 14-segment status display, reset button, removable connectors and utilizes standard “D” type connectors.
The Epsilon is available as a base drive, the Epsilon Eb; or as a single-axis positioning, indexing drive, the Epsilon Ei.The
Epsilon Ei is also available with DeviceNet-Epsilon Ei-DN.
The Epsilon servo drives are stand-alone, fully digital brushless servo drives designed and built to reliably provide high performance and flexibility without sacrificing ease of use. Whether the drives are utilized in base drive only applications or with a closed loop controller, setup can be achieved in just minutes with no-charge PowerTools software. The use of a State-Space algorithm makes tuning very simple and forgiving. The Epsilon servo drives are designed to operate with up to a 10 :1 inertia mismatch right out of the box. Higher (50 :1 and more) inertial mismatches are possible with two simple parameter settings.
Epsilon Eb
The Epsilon Series Eb Drive is a compact drive ideal for use with single and multi-axis controllers, PLCs and host controllers. The analog torque or velocity modes can be used with classic position controllers using analog outputs and encoder inputs.
The pulse mode is ideal for use with low-cost PLC stepper controllers. Epsilon works in a variety of applications where a host controller provides a command signal determining the desired motion profile. The Eb Drive is configurable for seven flexible modes of operation, and the parameters for each mode can be adjusted to tailor the drive to the specific application using Windows™- based PowerTools FM software.
Features:
• Analog Torque Mode, Analog Velocity Mode Digital Velocity Preset, & Pulse Mode (Pulse/Pulse, Pulse/Direction, Pulse/Quadrature).
• Summation of Analog Velocity and Digital Velocity
• Programmable I/O – 5 optically-isolated inputs, 3 optically-isolated outputs, 1 analog input ±10 VDC, 14 bit, 2 analog
output ±10 VDC, 10 bit.
• Programmable encoder output (up to 2,048 lines per revolution).
• Separate stop and travel limit decel ramps.
• Torque, travel, following error and velocity limits.
• 8 user defined speed presets with individual accel/decel rates.
• 2 Programmable torque level outputs.
• In Motion velocity output.
Epsilon Ei
The Epsilon Ei offers user units, indexing, homing and jogging, 1and additional I/O in a package that is the same compact size as the base Eb. Operating information is setup via a PC. These setup parameters are easily entered and stored with the use of our Windows™-based PowerTools-FM software. The setup can be downloaded, stored on disk or printed out for documentation.
Features:
• Programmable I/O – 12 optically-isolated inputs & 7 optically-isolated outputs.
• 16 indexes – Chaining index capability & chain indexes to home.
• Jogging and Homing - 2 jog velocities, Homing, Home to sensor, Home to marker, & Home to sensor then marker.
• User Units – Distance, Velocity, Time Scale, & Acceleration.
Epsilon Ei-DN (Indexing with DeviceNet)
Small size and large functionality makes the Epsilon Ei-DN a natural fit in any DeviceNet related motion application.
The Ei-DN retains the same footprint as the Ei and now uses Polled I/O and Explicit Messages to change or initiate
any user parameter in the drive via DeviceNet. Choose between any one of four pre-defined DeviceNet word setups: Index Select Pre-defined, Index Select User-defined, Index Type, or Position Control.
Features:
• Supports Explicit Messaging
• Polled (8 bytes in, 8 bytes out)*
• Access to all Motion Parameters within Polled I/O
• Up to 63 devices per network
• Baud Rate (125k, 250k, 500k) and MacID configurable via PowerTools FM or the “one-touch” reset button
• Module and Status LED’s located on the front of the drive
• 25 milliamp DeviceNet draw
• Easy 5-wire terminal block for DeviceNet connection
Contact an ACS Representative for more information.
