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1. Product Identification

The 20G11TC567AN0NNNNN is a large-frame industrial variable-frequency drive intended for controlling high-power three-phase AC motors.

Its most important rating is the 567 A normal-duty output rating, corresponding to approximately 315 kW normal-duty motor capacity.

For applications with a lighter load profile, the drive can be used at approximately 612 A / 355 kW light duty, while demanding heavy-duty applications are rated approximately 472 A / 250 kW.

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2. Product Introduction

The 20G11TC567AN0NNNNN belongs to the PowerFlex 755 family of industrial AC drives.

It is designed for applications where a large motor needs controlled speed, controlled acceleration and integration with an industrial automation system.

Instead of connecting a large motor directly to a fixed-frequency AC supply and allowing it to operate at essentially one operating speed, the drive electronically controls the motor’s output frequency and voltage.

This makes it possible to adapt motor operation to the requirements of the machine.

For example, a large pump may not need to operate at full speed all the time. A conveyor may need a controlled acceleration profile. A fan may need its speed adjusted according to airflow demand. A mixer may require controlled starting and a defined operating speed.

The drive provides the electrical interface between the industrial power system and the motor, while also providing communication and diagnostic capabilities for the automation system.

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3. Brand and Series

The PowerFlex 755 family is positioned for industrial machinery and process equipment requiring more capability than a basic compact VFD.

The 20G11TC567AN0NNNNN is particularly suitable for large motors because its current capacity is several hundred amperes.

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4. Detailed Electrical Parameters

The current rating should be considered more important than simply comparing motor kW.

Two motors with the same nominal power can have different rated currents because of differences in motor efficiency, power factor, voltage, design and operating conditions.

For final drive selection, the motor nameplate current should therefore be checked carefully.

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5. Light-Duty Rating

The light-duty rating is approximately:

612 A / 355 kW

This rating is useful for applications where the mechanical load is relatively smooth and does not continuously demand the same overload capability as a high-torque application.

Typical examples include:

• Large centrifugal pumps
• Large centrifugal fans
• Ventilation systems
• Large blowers
• Cooling systems
• Process-air equipment

For centrifugal loads, the ability to reduce motor speed according to process demand can be particularly valuable.

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6. Normal-Duty Rating

The normal-duty rating is:

567 A / 315 kW

This is the main rating of the 20G11TC567AN0NNNNN.

It places the drive in the 315 kW class for normal-duty operation.

Typical applications include:

• Large conveyors
• Large pumps
• Industrial fans
• Blowers
• Process machinery
• Material-handling systems
• Large production equipment

The drive can be used where a motor must operate at different speeds rather than continuously running at one fixed speed.

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7. Heavy-Duty Rating

The heavy-duty rating is approximately:

472 A / 250 kW

Heavy-duty operation is intended for applications where the motor can experience greater mechanical loading or more demanding acceleration conditions.

Potential applications include:

• Heavy conveyors
• High-inertia machines
• Mixers
• Material-handling machinery
• Processing equipment
• Machines requiring higher starting torque

The motor current must be checked against the heavy-duty rating when selecting this type of application.

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8. Input and Power Architecture

The drive is designed for a three-phase AC input in the approximately 380–400 VAC class.

The electrical power path can be understood generally as:

Three-Phase AC Supply

↓

Input Power Section

↓

DC Bus

↓

Inverter / Power Semiconductor Section

↓

Variable-Frequency AC Output

↓

Three-Phase Motor

The drive controls the output waveform electronically.

The motor can therefore be operated at different speeds according to the programmed reference and control strategy.

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9. Embedded EtherNet/IP

One of the important characteristics of this configuration is its embedded EtherNet/IP capability.

This allows the drive to participate in an industrial automation network.

A typical arrangement can be:

PLC / Controller

↓

EtherNet/IP Network

↓

20G11TC567AN0NNNNN

↓

315 kW-Class Motor

The control system can exchange information such as:

• Start command
• Stop command
• Speed reference
• Direction command
• Enable
• Reset
• Output frequency
• Motor current
• Drive status
• Warning status
• Fault information
• Diagnostic information

This is useful for large automated production systems where the drive must be monitored and controlled from a central control system.

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10. Meaning of the “A” Configuration

The catalog number contains:

20G11TC567A…

The A configuration is important because it indicates that the common-mode capacitor jumper is removed.

This distinguishes it from the corresponding J configuration:

20G11TC567JN0NNNNN

where the common-mode capacitor jumper is installed.

Therefore, the two models should not be treated as completely identical.

The appropriate configuration depends on the electrical system, grounding arrangement and installation requirements.

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11. Filtering Configuration

The drive uses a filtered configuration.

Filtering is important in high-power switching equipment because the switching action of the power electronics can produce electrical noise.

A complete installation should still pay attention to:

• Motor-cable routing
• Shielding
• Grounding
• Cabinet bonding
• Control-cable routing
• Network-cable routing
• Separation of power and signal wiring

The filter configuration is only one part of the overall electromagnetic-compatibility design.

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12. Dynamic Braking

This model is specified without an internal dynamic-braking transistor.

This is particularly important for applications involving high rotating inertia.

When a large motor decelerates, the mechanical energy stored in the rotating equipment can be returned toward the drive.

This can raise the DC-bus voltage.

Therefore, applications involving:

• Heavy conveyors
• Large rollers
• High-inertia machinery
• Rapid stopping
• Frequent acceleration and deceleration

should receive special attention during braking-system design.

The appropriate braking solution depends on the actual mechanical system.

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13. Frame 8 Construction

The 20G11TC567AN0NNNNN uses Frame 8 construction.

This is a substantial industrial drive.

It is not comparable in physical size to a small wall-mounted VFD.

Installation planning should include:

• Drive cabinet dimensions
• Drive weight
• Power cable size
• Cable bending radius
• Cable-entry arrangement
• Cooling airflow
• Maintenance space
• Lifting requirements
• Floor loading
• Service access

For large Frame 8 installations, mechanical handling equipment or a suitable rollout arrangement may be required during installation.

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14. Dimensions

The physical dimensions depend on the exact installation arrangement and enclosure configuration.

For an open-frame installation, the Frame 8 equipment is approximately in the following size range:

For a complete cabinet system, the overall dimensions and weight can be considerably larger.

Therefore, the 286 kg value should be treated as the approximate drive assembly weight rather than the shipping weight of an entire assembled cabinet.

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15. Physical Installation

Because the drive is physically large, the installation should be planned from the beginning of the project.

Adequate space should be provided for:

• Incoming power connections
• Motor output connections
• Grounding
• DC terminals
• Network wiring
• Cooling air
• Maintenance
• Component replacement
• Cable bending
• Inspection

The cabinet should also be capable of supporting the weight of the equipment and associated components.

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16. Cooling System

The drive is air cooled using forced airflow.

At a power level of several hundred kilowatts, even a relatively small percentage of conversion losses can represent a substantial amount of heat.

For this reason, cabinet thermal design is important.

The installation should prevent:

• Airflow obstruction
• Hot-air recirculation
• Excessive ambient temperature
• Heavy dust accumulation
• Contaminated cooling air

Cooling fans should also be considered as maintenance components because fan condition can directly affect drive temperature.

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17. Main Product Applications

17.1 Large Conveyor Systems

Large conveyors can require hundreds of kilowatts of motor power.

The drive can provide:

• Controlled starting
• Adjustable speed
• Smooth acceleration
• Controlled stopping
• Motor-current monitoring
• Centralized control

This is useful in large material-handling systems.

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17.2 Mining and Bulk Material Handling

Large material-handling equipment often requires high-power motors.

Potential applications include:

• Ore conveyors
• Bulk-material conveyors
• Transfer systems
• Feed systems
• Processing equipment
• Material transport systems

The drive can provide variable-speed operation and communication with the plant automation system.

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17.3 Large Pumps

Large industrial pumps are an important application.

Examples include:

• Water-transfer pumps
• Cooling-water pumps
• Industrial-process pumps
• Wastewater pumps
• Circulation systems
• Utility pumps

Variable-speed operation can help match pump output with process requirements.

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17.4 Large Fans

Large fans may require hundreds of kilowatts.

Possible applications include:

• Industrial ventilation
• Furnace ventilation
• Exhaust systems
• Cooling systems
• Process-air systems

The drive allows fan speed to be adjusted according to the required airflow.

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17.5 Large Blowers

Large blowers can require precise airflow control.

The drive can vary blower speed according to:

• Pressure demand
• Airflow
• Production requirements
• Process conditions

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17.6 Compressors

Large compressors may use high-power AC motors.

Where variable-frequency operation is appropriate, the drive can provide controlled acceleration, adjustable speed and automation-system integration.

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17.7 Mixers

Large mixers can have considerable mechanical inertia.

Controlled acceleration can reduce mechanical stress on:

• Motor shafts
• Gearboxes
• Couplings
• Belts
• Mechanical transmission systems

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17.8 Industrial Rollers

Large rollers may require accurate speed control.

The drive can be incorporated into production lines where motor speed needs to be coordinated with other equipment.

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18. Product Advantages

High Current Capacity

The 567 A normal-duty output rating makes this model suitable for very large industrial motors.

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315 kW Normal-Duty Capability

The 315 kW normal-duty rating places the drive in a substantial industrial power class.

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355 kW Light-Duty Capability

For appropriate load profiles, the drive can support approximately 355 kW under light-duty conditions.

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250 kW Heavy-Duty Capability

The heavy-duty rating allows it to be considered for applications where higher load demand is expected.

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Embedded Industrial Networking

Embedded EtherNet/IP simplifies integration with an industrial automation architecture.

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Adjustable Speed

Motor speed can be changed according to process requirements.

This can improve process flexibility.

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Controlled Acceleration

The drive can gradually accelerate a large motor instead of applying full-speed operation immediately.

This can reduce mechanical shock.

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Controlled Deceleration

Controlled deceleration can be programmed for the machine.

However, high-inertia applications need a suitable regeneration and braking strategy.

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High-Power Industrial Architecture

The Frame 8 construction is intended for large industrial systems rather than compact machine applications.

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19. Energy-Saving Potential

Variable-speed operation can provide substantial energy-saving potential in applications where the process demand varies.

This is especially relevant to centrifugal pumps and fans.

For example, a fan that only needs 70% of its maximum airflow may not need to operate continuously at full speed.

Instead, the drive can reduce motor speed to match the process requirement.

Potential benefits include:

• Reduced unnecessary motor speed
• Reduced throttling losses
• Better process control
• Lower mechanical stress
• Potentially lower electricity consumption
• Reduced equipment wear

Actual energy savings depend on the machine characteristics and operating profile.

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20. Motor Compatibility

The motor should be selected according to the actual electrical requirements.

A motor should not be selected purely because its nominal kW is 315 kW.

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21. Maintenance Considerations

A large industrial drive should be incorporated into a preventive-maintenance program.

Typical maintenance activities include:

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22. Troubleshooting Reference

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23. Five Recommended Same-Series or Closely Related Models

The most relevant alternatives are other high-power PowerFlex 755 configurations in the same voltage class.

The 20G11TC567JN0NNNNN is especially interesting because it has essentially the same primary power/current rating as the subject model but uses the J configuration.

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24. Comparison of the Same-Series Models

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25. Recommended Alternative No. 1

20G11TC460AN0NNNNN

This model is suitable when the motor current requirement is lower than the 567 A configuration.

This is a logical alternative for a motor in the 200–250 kW range.

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26. Recommended Alternative No. 2

20G11TC540AN0NNNNN

This model is immediately below the subject model in normal-duty current.

This is particularly useful when the required normal-duty current is below 540 A.

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27. Recommended Alternative No. 3

20G11TC567JN0NNNNN

This is the closest configuration alternative to the subject model.

The main distinction from the subject model is the common-mode capacitor jumper configuration.

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28. Recommended Alternative No. 4

20G11TC650AN0NNNNN

This model provides higher capacity.

It is suitable when the application requires more than 567 A normal-duty current.

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29. Recommended Alternative No. 5

20G11TC750AN0NNNNN

This is a higher-capacity Frame 8 model.

This is appropriate for larger motor applications where additional current capacity is needed.

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30. Five Popular Same-Brand Models for Other Power Levels

For comparison purposes, the following models are useful examples of other products from the same brand family.

These models are not direct replacements for the 567 A drive.

They are included as same-brand alternatives for applications with substantially smaller motors.

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31. Same-Brand Product Comparison

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32. Application-Based Selection

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33. A Version vs. J Version

The most important comparison for this model is between:

20G11TC567AN0NNNNN

and

20G11TC567JN0NNNNN

Their main current and power ratings are essentially the same.

The major distinction is the common-mode capacitor jumper.

The A version has the jumper removed, while the J version has it installed.

This difference can matter when the drive is being integrated into a particular grounding and EMC arrangement.

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34. Product Strengths at a Glance

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35. Typical System Architecture

A typical installation can be represented as:

Three-Phase Industrial Power

↓

Protection / Disconnect

↓

20G11TC567AN0NNNNN

↓

Large Three-Phase Motor

↓

Pump / Fan / Conveyor / Blower / Process Equipment

At the control level:

PLC / Industrial Controller

↓

EtherNet/IP

↓

20G11TC567AN0NNNNN

The drive can then receive operating commands and return status and diagnostic information.

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36. Why the 20G11TC567AN0NNNNN Is a High-Power Drive

The combination of:

• 567 A normal-duty current
• 315 kW normal-duty power
• 612 A light-duty current
• 355 kW light-duty power
• 472 A heavy-duty current
• 250 kW heavy-duty power
• Frame 8 construction
• Forced-air cooling
• Embedded EtherNet/IP
• Filtered input arrangement
• AC input with DC terminals

places this model firmly in the high-power industrial-drive category.

It is intended for applications where a standard small or medium VFD would not provide sufficient current capacity.

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37. Important Engineering Points

Before selecting this model for a real machine, the following items should be checked:

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38. Overall Technical Summary

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39. Final Product Assessment

The 20G11TC567AN0NNNNN is a PowerFlex 755 high-power AC variable-frequency drive intended for large industrial motor-control applications.

Its 567 A normal-duty rating and 315 kW normal-duty capacity make it suitable for substantial industrial machinery. Under a lighter-duty load profile, it can reach approximately 612 A and 355 kW, while the heavy-duty rating is approximately 472 A and 250 kW.

The model uses a 380–400 VAC three-phase input class, Frame 8 construction, forced-air cooling, filtered configuration, AC input with DC terminals, and embedded EtherNet/IP.

One particularly important feature of this exact catalog number is the A configuration, meaning the common-mode capacitor jumper is removed. The corresponding J configuration uses the same basic power rating but has the jumper installed.

For physical planning, this is a large piece of industrial equipment. An open-frame Frame 8 arrangement is approximately 2,145 mm high × 778 mm wide × 425 mm deep, with an approximate drive assembly weight of 286 kg. The final dimensions and shipping weight can increase substantially when the drive is installed in a complete cabinet with disconnects, bus systems, cooling equipment and other accessories.

The model is particularly well suited to large pumps, large fans, conveyors, blowers, compressors, mixers, rollers, mining/material-handling systems and other high-power process equipment.

Among the closest alternatives, 20G11TC540AN0NNNNN is a lower-current option, 20G11TC567JN0NNNNN is the closest configuration variant, while 20G11TC650AN0NNNNN and 20G11TC750AN0NNNNN provide progressively higher capacity.

For actual engineering selection, the most important point is not simply the motor’s kW rating. The motor’s rated current, duty cycle, overload requirement, starting torque, acceleration time, deceleration time, inertia and braking requirements should all be considered before final selection.

In practical terms, the 20G11TC567AN0NNNNN is best described as a large-frame, high-current, 315 kW-class industrial AC drive for demanding variable-speed motor applications, with strong suitability for centralized industrial automation and high-power process equipment.