VIPA controller, German VIPA model, VIPA price

VIPA 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 automated 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 a 3-loop control algorithm for current, speed, and position based on vector control. In this algorithm, the rationality of the speed loop design plays a key role in the performance of the entire servo control system, particularly in speed control.

VIPA Controller Introduction

In the servo drive speed closed loop, the real-time measurement accuracy of the motor rotor speed 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 drawbacks, including: 1) At least one complete code disk pulse must be detected within the speed measurement period, which limits the minimum measurable speed; 2) The 2 control system timer switches used for speed measurement cannot strictly maintain synchronization, making it impossible to guarantee speed measurement accuracy in scenarios with significant speed variations. Therefore, traditional speed loop design schemes using this speed measurement method struggle to improve the speed tracking and control performance of servo drives.

VIPA Controller Principle

Currently, mainstream servo drives use a Digital Signal Processor (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). The IPM integrates the driver circuit 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 full-bridge uncontrolled 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 automation 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 automated 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 a 3-loop control algorithm for current, speed, and position based on vector control. In this algorithm, the rationality of the speed loop design plays a key role in the performance of the entire servo control system, particularly in speed control.

VIPA 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 automation interfaces. Different fieldbus modules are used to implement different control modes (RS232, RS485, fiber optic, InterBus, ProfiBus), whereas general-purpose VFDs have relatively single control methods. Servo controllers connect directly to resolvers or encoders to form closed loops for speed and displacement control. General-purpose VFDs can only form open-loop control systems. The control indicators of servo controllers (such as steady-state accuracy and dynamic performance) are superior to those of general-purpose VFDs.

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