ORLIN Technologies offers controllers for stepper, servo and linear motors – covering the whole range of motors and stages, as well as compatible devices from other suppliers. We have a wide range to suit almost every application and are developing new models with Industrial Fieldbus connectivity to satisfy the requirements of Industry 4.0.
Stepper motor controllers
Programmable controllers allow stepper motors to run sequences of movements “stand alone” without external control such as from a PLC. However, most controllers will also accept external inputs like “step” and “direction” signals. We have programmable controllers for stepper motors from 1A to 8A.
Stepper motor drivers
Stepper motor drivers do not have any progamming capability and rely solely on external signals. They are therefore simple and low cost devices that are often compact enough to be mounted on the motor itself, saving space and wiring.
DC motor controllers
DC motor controllers provide open loop speed control and motion sequencing for brushed and brushless motors. These are distinct from servo controllers which require a feedback device (usually an encoder) for more precise speed and position control.
A servo drive is an amplifier that provides power and closed-loop speed and postion control for servo motors in response to a position or velocity demand from an external device like a motion controller or PLC. Feedback from a position sensor and sophisticated control loops give the optimum response to any demand.
A servo controller is similar to a servo drive (and the terms are sometimes used interchangeably) but contains a motion controller and drive in one unit. These units are programmable, so can run “stand alone” without external inputs, but many also offer connection via digital I/O or more a sophisticated communications interface.
Motion controllers are sophisticated electronic devices that produce a position demand according to a pre-programmed path (e.g. from a CNC file). These may be a stand alone unit or a card in a PC or PLC. They can often control multiple axes at the same time a coordinate motion between axes to describe complex multi-dimensional paths such as circles, spirals and spheres (called interpolation).