A servo from Volz excels due to the simplicity of its design while simultaneously maximizing positioning force, reliability and durability. Moreover, a variety of electric interfaces makes it possible, for instance, to monitor the operating condition of the servos by reading out the current consumption, the internal temperature and humidity, etc.
Every actuator comprises a DC motor, a gear train and control electronics governed by microprocessors with integrated position feedback. These are electromechanical servo units that precisely position a radial output drive.
Depending on the type of actuator, the maximum travel in the standard configuration varies between 90° and 170°. Versions with larger travel of up to 330° or "Multiturn" versions (e.g., 3, 5 or 10 revolutions) can be provided on request.
In the standard configuration, the actuators turns a TTL-compatible pulse width modulation (PWM) signal into a position-based reference value that is used by the closed-loop-controller to drive the servo shaft to the desired target position. The internal position feedback supplies the necessary information for precise positioning.
Instead of the TTL-level, single ended PWM command interface, opto-coupled or RS-422-level PWM interfaces can be provided.
Alternatively serial command and communication interfaces based on the popular RS-485 standard can also be delivered for most of our high end actuators.
Along with our off-the-shelf product range, we also offer a comprehensive service for the development and subsequent series production of customized solutions.