Three-Phase Variable Frequency Drive ZEST 5.5kW 13A HD / 7.5kW 17A ND 400V

ZEST ZQ510T5D5 Three-Phase Variable Frequency Drive 5.5kW HD / 7.5kW ND 400V

ZEST ZQ510T5D5 three-phase variable frequency drive is an industrial frequency inverter with two ratings: 5.5kW / 13A (HD) and 7.5kW / 17A (ND), designed for smooth speed regulation and control of suitably matched three-phase motors. Its 400V power supply allows the inverter to be used in workshops, manufacturing facilities and industrial installations. Frequency regulation enables motor speed to be adjusted to process requirements, providing greater control over drive operation.

The ZEST ZQ510T5D5 inverter uses vector control, Torque Boost and Speed Tracking functions, and extensive configuration options. It enables controlled starting, smooth stopping, direction reversal and integration with industrial automation systems. Additional features, including Intelligent Fan Control, Three Anti-Paint and Power Anomaly Self-Check, support reliable operation in demanding applications.

Key Advantages of the ZEST ZQ510T5D5 Three-Phase Variable Frequency Drive

• Two HD/ND ratings – 5.5kW / 13A for loads requiring greater overload capacity or 7.5kW / 17A for less demanding load characteristics.
• Smooth motor speed regulation – allows drive speed to be adjusted to the task without having to change mechanical gear ratios each time.
• Vector control – provides more precise torque regulation and more stable operation under changing loads.
• Torque Boost – supports the generation of suitable torque at lower frequencies, facilitating drive operation at reduced speeds.
• Speed Tracking – enables the inverter to take control of a motor that is still rotating, facilitating the restarting of drives with higher inertia.
• Smooth starting and stopping – reduces sudden jerking and mechanical loads during drive start-up and shutdown.
• FWD/REV direction reversal – enables control of mechanisms requiring operation in both directions.
• Adjustable acceleration and deceleration – allows motor acceleration and deceleration characteristics to be matched to process requirements.
• RS485/Modbus communication – enables integration with compatible PLC controllers and industrial automation systems.
• Intelligent Fan Control – automatically manages cooling fan operation, reducing unnecessary running.
• Three Anti-Paint – an additional protective coating for the electronics increases the PCB's resistance to adverse environmental conditions.
• Power Anomaly Self-Check – supports the detection of power supply irregularities and facilitates drive diagnostics.
• Built-in braking unit – extends the options for controlled motor stopping in suitably configured installations.
• Up to 16 preset speeds – allows frequency settings to be stored and selected via configured digital inputs.
• Built-in Simple PLC function – automatically executes speed sequences with specified durations for individual stages, without an additional PLC controller.
• PID controller – automatically adjusts drive operation according to a sensor signal, for example to maintain a specified pressure.
• Motor autotuning – identifies motor parameters to facilitate matching control settings to the drive.
• JOG operation – enables brief drive operation at a separate speed setting, useful when positioning mechanisms.

Two Rated Power Ranges – 5.5kW HD and 7.5kW ND

Heavy Duty (HD) – 5.5kW / 13A is the rating intended for drives requiring greater overload capacity, such as suitably matched conveyors and mixers.

Normal Duty (ND) – 7.5kW / 17A is the rating for drives with less demanding load characteristics, such as suitably matched pumps and fans.

What does this mean in practice? The same inverter has two ratings depending on the nature of the load. The 7.5kW ND rating does not provide the same overload capacity as the 5.5kW HD rating. Nor does it mean that two motors can be controlled independently at the same time.

400V Vector-Controlled Inverter – Precise Drive Control Under Load

The ZEST ZQ510T5D5 vector-controlled inverter provides more precise motor control than basic frequency regulation. This is particularly important in applications where the load changes during operation and maintaining the appropriate torque affects the production process.

The variable frequency drive allows rotational speed to be adjusted to current requirements, increasing the flexibility of drive operation. This makes it suitable for machine tools, conveyors, feed mechanisms and installations requiring adjustable operating speeds.

Torque Boost – Increased Torque at Low Speeds

The ZEST ZQ510T5D5 inverter offers a Torque Boost function that supports torque generation during operation at lower frequencies. This is particularly useful when the motor operates at reduced speed but must still overcome the mechanical resistance of the driven mechanism.

The ability to adjust Torque Boost manually or automatically allows the drive characteristics to be matched to a specific application. This facilitates speed regulation in conveying mechanisms, machine tools and other systems with varying loads.

Speed Tracking – Smoothly Taking Control of a Rotating Motor

The ZEST ZQ510T5D5 three-phase variable frequency drive uses Speed Tracking to match its control to a motor that is still rotating when restarted. This is particularly useful in drives with higher inertia, where rotating components do not stop immediately after control is switched off.

Examples include fans and rotating mechanisms that continue to turn due to inertia after the drive has stopped. Speed Tracking helps regain control of such a motor, facilitating restarting and reducing sudden changes in operating conditions.

Smooth Starting and Controlled Motor Stopping

The ZEST 5.5kW variable frequency drive allows motor acceleration and deceleration times to be adjusted. Instead of starting abruptly, the drive can gradually increase speed to the set value, reducing sudden mechanical loads.

Smooth starting helps reduce jerking in gearboxes, couplings, drive belts and other system components. Configurable braking also allows the stopping process to be adapted to operating requirements, providing greater control over the drive.

FWD/REV Direction Reversal – Flexible Operation Control

The ZEST ZQ510T5D5 inverter allows the motor's direction of rotation to be reversed using the FWD/REV function. This is a practical solution for mechanisms requiring bidirectional operation, such as conveyors, feed mechanisms and suitably adapted machine tools.

The ability to configure the direction of operation allows the control settings to be matched to operator requirements and drive characteristics, facilitating repetitive production operations.

RS485/Modbus Communication – Industrial Automation Integration

The ZEST ZQ510T5D5 three-phase variable frequency drive supports RS485/Modbus communication, enabling integration with compatible PLC controllers and industrial automation systems. It can therefore be used both for independent motor control and as part of a more extensive production system.

Communication enables control commands to be transmitted and available drive operating parameters to be read. This facilitates centralised process management, integration with production lines and adjustment of motor operation according to signals from a supervisory control system.

Intelligent Fan Control – Smart Cooling Management

The ZEST ZQ510T5D5 inverter uses Intelligent Fan Control to manage cooling fan operation according to operating conditions. This allows cooling to be adjusted to the actual requirements of the electronics.

This helps reduce unnecessary fan operation, lower noise levels and limit fan wear. It is particularly useful in installations where the inverter operates for extended periods or under periodically changing loads.

Three Anti-Paint – Additional Electronics Protection

The ZEST ZQ510T5D5 variable frequency drive features electronics protected by a Three Anti-Paint coating. Its purpose is to increase the PCB's resistance to adverse environmental conditions, including moisture, corrosion and salt spray.

Additional electronics protection supports the inverter's durability and operational reliability in industrial environments. Suitable installation and ventilation conditions help make effective use of this design during everyday operation.

Power Anomaly Self-Check – Power Supply Diagnostics

The ZEST ZQ510T5D5 inverter uses the Power Anomaly Self-Check function to help detect power supply irregularities. This facilitates diagnosis of conditions that may affect drive operation and faster identification of potential operating problems.

Combined with the inverter's protective functions, this feature extends the ability to monitor operating parameters, which is particularly important in industrial installations requiring predictable operation.

Applications of the ZEST ZQ510T5D5 Three-Phase Variable Frequency Drive

The 5.5kW HD / 7.5kW ND 400V three-phase variable frequency drive is suitable for workshops, manufacturing facilities and industrial drive systems. It enables motor speed regulation, controlled starting and adjustment of drive characteristics to the task.

Typical applications include:

• Lathes and milling machines – adjusting spindle speed to suit the material and machining operation.
• Drilling machines and workshop machine tools – adjusting rotational speed to process requirements.
• Industrial grinding machines – speed control of suitably adapted drives.
• Belt conveyors – regulating material conveying speed.
• Feed mechanisms – smooth control of movement and operating speed.
• Industrial fans – regulating output by changing motor speed.
• Pumps – adjusting output to the installation's requirements.
• Mixers – controlling rotational speed in production processes.
• Production lines – integrating the drive with automation and control systems.

Selecting a variable frequency drive should take into account the motor's rated voltage and current, winding connection configuration, required starting torque and the nature of the load.

ZEST ZQ510T5D5 Technical Specifications

ZEST ZQ510T5D5 – Industrial Inverter for Three-Phase Motor Control

The ZEST ZQ510T5D5 three-phase variable frequency drive combines smooth speed regulation, vector control and functions supporting reliable drive operation. Torque Boost facilitates operation at reduced speeds, Speed Tracking enables the inverter to take control of a rotating motor, and RS485/Modbus communication allows integration with industrial automation systems.

Choose the ZEST 5.5/7.5kW 400V variable frequency drive for greater motor control, convenient speed regulation and the ability to adapt the drive to production requirements. Explore the CORMAK range.