NIMAK controller, German NIMAK model, NIMAK price

NIMAK 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 for controlling the operating mode of electric motors: 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. Motion control applications in robotics and CNC machine tools are more complex than those in dedicated machines, as the latter involve simpler motion forms, often referred to as General Motion Control (GMC).

NIMAK 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. Depending on the power source, 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 statistics, over 90% of all power sources come from electric motors. Electric motors play a crucial role in modern production and daily life, making electrical motion control the most widely applied among these types. Electrical motion control evolved from electric drive systems, which are control systems centered on electric motors. Motion control systems vary, but a typical modern system's hardware primarily 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 for managing motor operation: for instance, a motor lifts an object to a set position via a limit switch and AC contactor, then lowers it, or uses a time relay for start-stop or forward-reverse cycles. Motion control in robotics and CNC machine tools is more complex than in dedicated machines due to simpler motion forms in the latter, often called General Motion Control (GMC). The motion controller is the key component determining automatic control system performance. For the Mitsubishi series, the motion CPU is the motion controller. For simple motion control systems, a microcontroller-based motion controller suffices and offers high cost-performance ratio.

NIMAK Controller Functions

1) Motion Planning Function: This generates reference values for motion speed and position. Suitable reference values not only improve trajectory accuracy but also reduce requirements for the rotation system and mechanical transmission components. General 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 limiting acceleration produces a trapezoidal velocity curve; motion planning limiting jerk produces an S-shaped velocity curve. Generally, for CNC machine tools, motion planning methods limiting acceleration and speed reference values yield excellent dynamic characteristics. For fast positioning systems with high acceleration and short strokes, strict requirements on positioning time and overshoot often necessitate motion planning methods with continuous higher-order derivatives. 2) Multi-axis Interpolation and Continuous Interpolation Functions: The multi-axis interpolation function provided by general motion controllers is widely used in the CNC machinery industry. In recent years, the rapid development of the engraving market, especially mold engraving machines, has driven the development of continuous interpolation functions in motion controllers. Mold engraving involves processing numerous short line segments, requiring minimal fluctuation in processing speed between segments and smooth transitions at speed change inflection points. This demands motion controllers with look-ahead speed and continuous interpolation capabilities. Googol Technology has launched a continuous interpolation motion controller specifically for small segment processing, which has been well-applied in mold engraving, laser engraving, and planar cutting. 3) Electronic Gear and Electronic Cam Functions: Electronic gears and cams significantly simplify mechanical design and enable functions difficult to achieve with mechanical gears and cams. Electronic gears allow multiple motion axes to move synchronously according to a set gear ratio, making them ideal for fixed-length shearing and shaftless register printing. Additionally, electronic gear functions can make one motion axis follow a function determined by the motion of other axes, or follow the combined speed of two other axes at a set ratio. The electronic cam function allows changing cam shapes via programming without grinding mechanical cams, greatly simplifying processing techniques. This function is 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 during motion, without affecting the motion process. For example, in AOI fly-by inspection, the compare output function triggers CCD high-speed imaging at the set position without interrupting motion, significantly improving efficiency and image quality. This function is also well-applied in laser engraving applications by Googol Technology's general motion controller. 5) Probe Signal Latch Function: This latches the moment a probe signal is generated and the positions of all motion axes. Accuracy depends only on hardware circuits, unaffected by software or system inertia, making it valuable in the CCM measurement industry. Furthermore, an increasing number of OEM manufacturers wish to integrate their extensive industry application experience into motion control systems, customizing motion controller functions for specific applications and control objects. Googol Technology has developed a general motion controller application development platform, enabling truly object-oriented open control structures and system reconfiguration capabilities. Users can load custom control algorithms into the motion controller's memory to construct special-purpose dedicated motion controllers without altering the control system's structural design.

NIMAK Controller Composition

A motion controller generates trajectory points (desired output) and closes 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 speed or torque signals) into higher-power current or voltage signals. More advanced intelligent drives can close position and velocity loops internally for more precise control. An actuator, such as a hydraulic pump, cylinder, linear actuator, or motor, outputs motion. A feedback sensor, such as a photoelectric 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 into the desired form, including gearboxes, shafts, ball screws, timing belts, couplings, and linear and rotary bearings. Typically, a motion control system's functions include speed control and point-to-point control. There are many methods to calculate a motion trajectory, usually based on a motion velocity curve such as a triangular velocity curve, trapezoidal velocity curve, or S-shaped velocity curve. Examples include electronic gears (or electronic cams), where the slave axis position mechanically follows the master axis position changes. A simple example is a system with two turntables rotating at a given relative angle. Electronic cams are more complex than electronic gears, allowing the follow relationship between master and slave axes to be a function. This curve can be nonlinear but must be a functional relationship.

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