The servo electric motor is a closed-loop servomechanism that uses position feedback to be able to control its rotational speed and position. The control transmission 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 specifically monitor feedback signals and continuously adjust to deviations from the expected behavior of closed loop systems. This helps to improve overall performance through faster acceleration rates and more precise acceleration and position control.
AC servo drives are particularly created for AC motors, and provide the added advantage of motor opinions. After getting and transmitting signals to produce motion, these drives also obtain and adjust to reports from sensors on engine status. In providing constant adjustment, they amplify overall performance with regards to the desired velocity, torque, and position, as well as stiffness, damping, and feedback gain in AC servo motors and control systems.
The Ever-power category of brushless servo systems is fully digital and will be offering a rich group of features to cover a broad selection of applications. There are eight regular servo motors that can be operated in combination with one of three standard servo drives.
The Ever-power brushless motors include a 2,500 series incremental encoder with quadrature data signals (A+, A-, B+, B-) and a marker pulse (Z+, Z-). All three indicators have a collection driver output leading to 10,000 pulses per revolution plus index mark as the standard resolution in the drive. Each servo motor also has one connector for the encoder and another connector for the motor power and optional 24 VDC spring-set keeping brake.
The servo drives can be configured for an array 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 can 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/screen or the easy-to-make use of SureServo Pro software on a Home windows environment.
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 mounting 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 (once per revolution)
Optional 24 VDC spring-set holding brakes
Standard hook-up cables for engine power/brake and encoder
Standard DIN-rail mounted ZIPLink break-out kit for the drive CN1 connector (with screw terminal connections)
Main Power and Control Power Inputs
Primary Power: 230V AC 3-Phase (Single phase option w/ low inertia systems)
Control Power: 230V AC Single Phase; 50/60 Hz
Completely 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 choices include:
±10V torque or velocity command
Pulse train or master encoder position control (accepts range driver or open collector) with electronic gearing
Built-in indexer for placement control using 8 preset positions and/or placement setpoint with serial MODBUS
Tuning aids consist of inertia estimation and easy-tuning for up to 10 levels of response
Optically-isolated digital inputs (8) and outputs (5), analog outputs for monitor indicators (2), and line driver output for encoder (with scalable resolution)