SQR-LD3T-4G1333SED

The SQR-LD3T-4G1333SED is a quadrature-locked-drive locked-drag controller, which is increasingly being employed in numerous applications. It is a three-phase, four-quadrant drive controller with low inductance, low-noise design. The SQR-LD3T-4G1333SED is designed to provide tight control and accurate positioning of three-phase electric motors with detailed control, improved performance, moderate cost and simpler interface.

Application Field:

The SQR-LD3T-4G1333SED is suitable for the application of water pumps, fans, pharmaceutical processes, elevators, automatic gate operators, agricultural machinery, electric vehicles and manned aircrafts. It is also suitable for use in cranes, power loads, presses and three-phase motor-driven process control systems. Its precise control of three-phase electric motors makes it ideal for applications requiring frequent and rapid position changes, such as hydraulic machinery, conveyor belts, printing presses and escalators.

Working Principle:

The SQR-LD3T-4G1333SED consists of a motor power section and logic control section. The former is responsible for driving the electric motor in a three-phase system, while the latter calculates the optimal position for the motor’s angular displacement based on input signals. This is achieved through a closed-loop system in which the actual position of the motor is compared to the desired position, with changes in speed and direction being determined based on the feedback.

The SQR-LD3T-4G1333SED works by automatically inverting the voltage of the sine wave supplied to the motor in order to change its direction and speed. This inversion is acheived by adjusting the phase angle of the waveform, a process known as phase control. The controller can be set to operate in a number of different modes, including duty cycle-mode and current-mode. In the duty cycle-mode, the voltage is adjusted, allowing for precise control of the motor speed. In current-mode, the current is adjusted in order to maintain the desired speed.

In addition to providing precise control and accurate positioning, the SQR-LD3T-4G1333SED also provides a range of advanced features including current-limiting, over-voltage protection, under-voltage protection, over-temperature protection, and regenerative braking. There is also a built-in monitoring system that tracks the efficiency of the motor, allowing operators to identify areas of improvement and increase the efficiency of their motorized applications.

The SQR-LD3T-4G1333SED is an ideal choice for a variety of applications requiring precise motion control. It is capable of providing reliable, accurate, and highly efficient control over three-phase electric motors, and provides users with a range of advanced features that enhance the performance of their system.