The servo electric motor is a closed-loop servomechanism that uses position feedback in order to control its rotational speed and position. The control signal is the input, either analog or digital, which represents the ultimate position order for the shaft.
Servo drives are created to power and manage performance of electric servomechanisms. They particularly monitor feedback indicators and continuously adapt to deviations from the anticipated behavior of closed loop systems. This can help to improve overall performance through faster acceleration prices and more precise velocity and position control.
AC servo drives are specifically designed for AC motors, and provide the added benefit of motor opinions. After getting and transmitting indicators to produce movement, these drives also obtain and adjust to reports from sensors on motor status. In providing continuous adjustment, they amplify performance when it comes to the required velocity, torque, and placement, and also stiffness, damping, and feedback gain in AC servo motors and control systems.
The Ever-power family of brushless servo systems is fully digital and offers a rich set of features to cover a broad range of applications. There are eight regular servo motors which can be operated in combination with among three regular servo drives.
The Ever-power brushless motors include a 2,500 range incremental encoder with quadrature data signals (A+, A-, B+, B-) and a marker pulse (Z+, Z-). All three indicators have a line driver output leading to 10,000 pulses per revolution plus index mark as the typical resolution in the drive. Each servo engine also offers one connector for the encoder and another connector for the motor power and optional 24 VDC spring-set holding brake.
SureServo Family
The servo drives can be configured for a wide variety of command sources including analog torque, analog velocity, “step and direction” or “along” pulse position, quadrature encoder follower, and built-in motion controller with preset position, velocity, or torque. Presets could be chosen with discrete inputs or modified with the MODBUS serial user interface.
Configuration and diagnostics of the servo drives can be accomplished with the integrated keypad/display or the easy-to-make use of SureServo Pro software on a Home windows environment.
Motor Features
Low inertia models:
100 W, 200 W, 400 W, 750 W and 1 kW
Speeds up to 5,000 rpm.
Medium inertia models:
1 kW, 2 kW and 3 kW
Speeds up to 3,000 rpm.
Square flange installation with metric dimensions: 40, 60, 80, 100, 130 and 180 mm flanges
Keyless drive shafts support clamp-on style coupling
Integrated encoder with 2,500 (x4) pulses/revolution plus marker pulse (one time per revolution)
Optional 24 VDC spring-set holding brakes
Standard hook-up cables for motor power/brake and encoder
Standard DIN-rail mounted ZIPLink break-out package for the drive CN1 connector (with screw terminal connections)
Drive Features
Primary Power and Control Power Inputs
Primary Power: 230V AC 3-Phase (Single phase choice w/ low inertia systems)
Control Power: 230V AC Single Phase; 50/60 Hz
Fully digital with up to 450 Hz velocity loop response
Easy set-up and diagnostics with built-in keypad/display or the SureServo Pro PC-based software
Five-in-one command options include:
±10V torque or velocity control 
Pulse train or master encoder position control (accepts line driver or open collector) with electronic gearing
Built-in indexer for position control using 8 preset positions and/or servo motor placement setpoint with serial MODBUS
Tuning aids include inertia estimation and easy-tuning for up to 10 levels of response
Optically-isolated digital inputs (8) and outputs (5), analog outputs for monitor signals (2), and line driver output for encoder (with scalable resolution)