Albright controller, German Albright model, Albright price

Albright controller refers to converting predetermined control schemes and planning instructions into desired mechanical motion under complex conditions, achieving precise position control, speed control, acceleration control, and torque or force control of mechanical motion. A motion controller is a specialized controller that manages the operating mode of an electric motor: for example, a motor drives an object upward to a specified position via a limit switch controlling an AC contactor, then moves downward; or a time relay controls the motor's forward and reverse rotation, or intermittent operation (run-stop-run-stop). Motion control applications in robotics and CNC machine tools are more complex than those in specialized machinery, as the latter involves simpler motion forms, often referred to as General Motion Control (GMC).

Albright Controller Introduction

Motion control typically involves converting predetermined control schemes and planning instructions into desired mechanical motion under complex conditions, achieving precise position control, speed control, acceleration control, and torque or force control. Based on the power source used, motion control is mainly categorized into electrical motion control using electric motors, pneumatic/hydraulic control using gas and fluids, and thermal engine motion control using fuels (coal, oil, etc.). According to statistical data, over 90% of all power sources come from electric motors. Electric motors play a crucial role in modern production and daily life; therefore, electrical motion control is the most widely applied among these types. Electrical motion control evolved from electric drive systems, where electric drive or electrical transmission is a general term for control systems targeting electric motors. Motion control systems vary, but in terms of basic structure, the hardware of a typical modern motion control system mainly consists of a host computer, motion controller, power drive unit, motor, actuator, and sensor feedback detection device. The motion controller is a control device centered on a central logic control unit, using sensors as signal-sensitive elements, and targeting motors or power devices and execution units. [A motion controller is a specialized controller that manages the operating mode of an electric motor: for example, a motor drives an object upward to a specified position via a limit switch controlling an AC contactor, then moves downward; or a time relay controls the motor's forward and reverse rotation, or intermittent operation (run-stop-run-stop). Motion control applications in robotics and CNC machine tools are more complex than those in specialized machinery, as the latter involves simpler motion forms, often referred to as General Motion Control (GMC). The motion controller is the primary component determining the performance of an automatic control system. For the Mitsubishi series, the motion CPU is the motion controller. For simple motion control systems, a motion controller designed with a microcontroller can meet requirements and offers high cost-performance ratio.

Albright Controller Functions

1) Motion Planning Function: This essentially generates reference values for motion speed and position. Suitable reference values not only improve trajectory accuracy but also reduce requirements for the rotating system and mechanical transmission components. General-purpose motion controllers typically provide motion planning methods that limit values affecting dynamic trajectory accuracy, such as jerk, acceleration, and speed, allowing users to call corresponding functions directly. Motion planning that limits acceleration produces a trapezoidal velocity profile; motion planning that limits jerk produces an S-shaped velocity profile. Generally, for CNC machine tools, motion planning methods limiting acceleration and speed reference values already yield excellent dynamic characteristics. For rapid positioning systems with high acceleration and short strokes, strict requirements exist for positioning time and overshoot, often necessitating motion planning methods with continuous higher-order derivatives. 2) Multi-axis Interpolation and Continuous Interpolation Functions: The multi-axis interpolation function provided by general-purpose motion controllers is widely used in the CNC machinery industry. In recent years, the rapid development of the engraving market, especially the mold engraving machine market, has driven the development of continuous interpolation functions in motion controllers. Mold engraving involves extensive processing of short line segments, requiring minimal fluctuation in processing speed between segments and smooth transitions at speed change inflection points. This requires motion controllers to have look-ahead speed and continuous interpolation capabilities. Googol Technology has launched a continuous interpolation motion controller specifically for small segment processing technologies, which has seen good application in mold engraving, laser engraving, and planar cutting. 3) Electronic Gear and Electronic Cam Functions: Electronic gears and electronic cams can greatly simplify mechanical design and achieve functions difficult to realize with mechanical gears and cams. Electronic gears allow multiple motion axes to move synchronously according to set gear ratios, making motion controllers well-suited for fixed-length shearing and shaftless rotary register printing. Additionally, the electronic gear function allows one motion axis to follow a function determined by the motion of several other axes at a set gear ratio; one axis can also follow the combined speed of two other axes at a set proportion. The electronic cam function allows changing the cam shape via programming without grinding mechanical cams, greatly simplifying processing techniques. This function makes motion controllers well-suited for quenching processing of mechanical cams, irregular glass cutting, and all-electric spring driving. 4) Compare Output Function: This refers to the motion controller outputting one or more digital signals when the position reaches a set coordinate point during motion, without affecting the motion process. For example, in AOI flying inspection, the motion controller's compare output function triggers CCD high-speed imaging when the system reaches the set position, without affecting motion, which greatly improves efficiency and image quality. Additionally, this function of Googol Technology's general-purpose motion controller has been well applied in laser engraving applications. 5) Probe Signal Latch Function: This can latch the moment a probe signal is generated and the positions of each motion axis. Its accuracy depends only on hardware circuits, unaffected by software and system inertia, making it well-suited for the CCM measurement industry. Furthermore, an increasing number of OEM manufacturers wish to integrate their rich industry application experience into motion control systems, designing personalized motion controller functions for different application scenarios and control objects. Googol Technology has developed a general-purpose motion controller application development platform, giving general-purpose motion controllers a truly object-oriented open control structure and system reconfiguration capability. Users can load their own designed control algorithms into the motion controller's memory, reconstructing a special-purpose dedicated motion controller without changing the control system's structural design.

Albright Controller Composition

A motion controller is used to generate trajectory points (desired output) and close the position feedback loop. Many controllers can also close a velocity loop internally. A drive or amplifier converts the motion controller's control signals (usually velocity or torque signals) into higher-power current or voltage signals. More advanced intelligent drives can close position and velocity loops themselves to achieve more precise control. An actuator, such as a hydraulic pump, cylinder, linear actuator, or motor, outputs motion. A feedback sensor, such as an optical encoder, resolver, or Hall effect device, feeds back the actuator's position to the position controller to close the position control loop. Numerous mechanical components convert the actuator's motion form into the desired motion form, including gearboxes, shafts, ball screws, timing belts, couplings, and linear and rotary bearings. Typically, the functions of a motion control system include speed control and point-to-point control. There are many methods to calculate a motion trajectory, usually based on a motion velocity profile such as triangular, trapezoidal, or S-shaped velocity profiles. For example, electronic gears (or electronic cams), where the slave axis position mechanically follows the master axis position changes. A simple example is a system containing two turntables rotating according to a given relative angular relationship. Electronic cams are more complex than electronic gears, allowing the follow relationship curve between the master and slave axes to be a function. This curve can be nonlinear but must be a functional relationship.

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