McLennan Servo Drive, 60 W, 10 → 30 V dc / 2636027

Euroamp 60. This unit provides a continuous output power rating up to 60W, with precise servo control of dc servo motors. It operates from a single rail supply which enables battery operation if required. A MOSFET based linear output stage provides a number of advantages. Virtually zero electrical emissions Improved smoothness of motor operation Increased motor life Suitable for low inductance motors without the need for an additional choke. The amplifier is packaged on a standard extended Eurocard and uses surface mount technology to provide a compact unit, with high reliability. The differential amplifier based input stage provides the following features. Adjustable peak output current up to 4A Choice of velocity control using armature voltage sensing or tacho feedback Optional torque control or positional control using analogue positional feedback signal Optional automatic velocity ramp for smooth starts using stepped input signal changes Diagnostic LED display of drive condition