Single-Phase Variable Frequency Drive ZEST 2.2kW 9A 230V

ZEST ZQ280AS2D2 single-phase variable frequency drive is a frequency inverter rated at 2.2kW with an output current of 9A, designed for smooth speed control of suitably matched 230V three-phase motors. Its single-phase power supply allows a three-phase drive system to be used in workshops and facilities without a 400V three-phase supply. SVC vector control, torque regulation and automation functions allow motor operation to be adapted to process requirements.

Key Advantages of the ZEST ZQ280AS2D2 Variable Frequency Drive

• 230V single-phase power supply – enables control of a suitable 230V three-phase motor without requiring a 400V three-phase mains supply.
• SVC vector control – provides improved speed and torque control under changing load conditions.
• Torque Boost and slip compensation – support torque generation at low frequencies and help reduce speed loss under load.
• Adjustable ACC/DEC ramps – provide smoother motor acceleration and deceleration, reducing sudden mechanical loads.
• FWD/REV and JOG – enable reversal of the direction of rotation and momentary drive operation during setup.
• Multi-speed and Simple PLC – provide preset speeds and automatic operating sequences for repetitive cycles.
• PID controller – automatically adjusts motor speed based on a signal from a suitable sensor.
• RS485/Modbus RTU – enables communication with compatible PLC controllers and industrial automation systems.

230V Variable Frequency Drive for Three-Phase Motors

ZEST ZQ280AS2D2 enables speed control of a three-phase motor designed for 230V operation using a single-phase power supply. It is a practical solution for workshops, production workstations and installations without a 400V three-phase supply.

The variable frequency drive regulates output frequency and voltage, allowing smooth speed adjustment without the need to change mechanical gear ratios. Unlike a three-phase inverter supplied from a 400V mains network, the ZQ280AS2D2 uses a 230V single-phase input and a 230V three-phase output.

SVC Vector Control and Torque Regulation

The inverter supports scalar V/F control and SVC vector control. Vector control provides improved motor control under changing load conditions, particularly at lower rotational speeds.

Torque Boost supports torque generation at low frequencies, while slip compensation helps reduce speed loss as mechanical resistance increases. These functions are useful in machine tools, conveyors and feed mechanisms.

Controlled Starting, Direction Reversal and Braking

Adjustable ACC/DEC ramps allow motor acceleration and deceleration times to be set. Gradual speed changes help reduce jerking and sudden loads on gearboxes, shafts and drive belts.

The FWD/REV function enables reversal of the direction of rotation, while JOG allows momentary drive operation at a preset speed. The DC Braking function assists motor stopping by applying direct current.

The built-in braking system supports connection of a suitably selected external braking resistor, extending the options for stopping drives with higher inertia.

Process Automation – Multi-speed, Simple PLC and PID

Multi-speed enables the use of previously programmed motor speeds, while Simple PLC allows simple operating sequences to be executed. These functions make it easier to control repetitive cycles in conveyors, mixers and production mechanisms.

The built-in PID controller automatically adjusts motor speed based on a signal from a suitable sensor. It can be used in pumping and ventilation systems to regulate process parameters.

External Control and Modbus RTU Communication

Programmable digital inputs and analogue control allow the inverter to be operated using external push buttons, a potentiometer and compatible control systems.

The RS485/Modbus RTU interface enables communication with PLC controllers, transmission of commands and reading of available drive operating information. This allows the inverter to be integrated with appropriately configured industrial automation systems.

Applications of the ZEST ZQ280AS2D2 Variable Frequency Drive

The 230V single-phase variable frequency drive with three-phase output is suitable for appropriately matched drives used in:

• Lathes and milling machines – adjusting spindle speed to suit the machining operation.
• Drilling and grinding machines – adjusting rotational speed to suit the operation being performed.
• Belt conveyors – controlling material conveying speed.
• Pumps and fans – regulating output by adjusting rotational speed.
• Mixers and feed mechanisms – speed control and execution of repetitive operating cycles.

Technical Specifications

ZEST ZQ280AS2D2 – Motor Speed Control and Drive Automation

The ZEST ZQ280AS2D2 variable frequency drive combines a 230V single-phase power supply with SVC vector control, torque regulation and automation functions. The frequency inverter enables controlled operation of three-phase motors in workshop and industrial applications.