ATR controller, German ATR model, ATR price

ATR controller is a type of controller used to control servo motors. Its function is similar to that of a variable frequency drive acting on a standard AC motor. It is part of the servo system and is mainly applied in high-precision positioning systems. Servo motors are generally controlled via position, speed, and torque modes to achieve high-precision positioning of the transmission system, making it a high-end product in transmission technology. Servo drives are an important component of modern motion control and are widely used in automation equipment such as industrial robots and CNC machining centers. Servo drives for controlling AC permanent magnet synchronous motors have become a research hotspot both domestically and internationally. Current AC servo drive designs commonly adopt current, speed, and position 3-loop control algorithms based on vector control. In this algorithm, the rationality of the speed loop design plays a key role in the entire servo control system, particularly in the performance of speed control.

ATR Controller Introduction

In the servo drive speed closed loop, the accuracy of real-time rotor speed measurement is crucial for improving the static and dynamic characteristics of speed control in the speed loop. To balance measurement accuracy and system cost, incremental optical encoders are generally used as speed sensors, with the corresponding common speed measurement method being the M/T method. Although the M/T method offers certain measurement accuracy and a wide measurement range, it has inherent defects, including: 1) At least one complete code disk pulse must be detected within the speed measurement cycle, which limits the minimum measurable speed; 2) The 2 control system timer switches used for speed measurement are difficult to keep strictly synchronized, making it impossible to guarantee speed measurement accuracy in applications with significant speed variations. Therefore, traditional speed loop design schemes using this speed measurement method struggle to improve the speed following and control performance of servo drives.

ATR Controller Principle

Currently, mainstream servo drives use digital signal processors (DSP) as the control core, enabling complex control algorithms and achieving digitization, networking, and intelligence. Power devices commonly use driver circuits designed around intelligent power modules (IPM). IPM integrates driver circuits and includes fault detection and protection circuits for overvoltage, overcurrent, overheating, and undervoltage. A soft-start circuit is also added to the main circuit to reduce impact on the drive during startup. The power drive unit first rectifies the input three-phase power or mains electricity using a three-phase full-bridge rectifier circuit to obtain the corresponding DC power. The rectified three-phase power or mains electricity is then converted by a three-phase sinusoidal PWM voltage-source inverter to drive the three-phase permanent magnet synchronous AC servo motor. The entire process of the power drive unit can be simply described as AC-DC-AC. The main topology of the rectifier unit (AC-DC) is a three-phase uncontrolled full-bridge rectifier circuit. With the large-scale application of servo systems, the use, debugging, and maintenance of servo drives have become important technical topics. More industrial control technical service providers are conducting in-depth technical research on servo drives. Servo drives are an important component of modern motion control and are widely used in automation equipment such as industrial robots and CNC machining centers. Servo drives for controlling AC permanent magnet synchronous motors have become a research hotspot both domestically and internationally. Current AC servo drive designs commonly adopt current, speed, and position 3-loop control algorithms based on vector control. In this algorithm, the rationality of the speed loop design plays a key role in the entire servo control system, particularly in the performance of speed control.

ATR Controller Features and Applications

Servo drives are widely used in injection molding machines, textile machinery, packaging machinery, CNC machine tools, and other fields. Servo controllers can easily switch between operation modules and fieldbus modules via automated interfaces. Different fieldbus modules are used to implement different control modes (RS232, RS485, fiber optic, InterBus, ProfiBus), whereas general-purpose variable frequency drives have relatively single control methods. Servo controllers connect directly to resolvers or encoders to form speed and displacement closed-loop controls. General-purpose variable frequency drives can only form open-loop control systems. The various control indicators of servo controllers (such as steady-state accuracy and dynamic performance) are superior to those of general-purpose variable frequency drives.

Weidou Intelligent Technology professionally sells German ATR servo drives, ATR servo amplifiers, ATR programmable logic controllers, ATR control units, ATR industrial PCs, ATR logic controllers, ATR drum controllers, ATR relay controllers, ATR control systems, ATR motion controllers, ATR microcontrollers, ATR control modules, ATR control switches, ATR servo controllers, and ATR expansion modules. ATR products are original imports from Germany. Customers are welcome to inquire and place orders.