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Allen-Bradley 20G1ABC567AN2NNNNN – PowerFlex 755 High-Power Air-Cooled AC Drive

The Allen-Bradley 20G1ABC567AN2NNNNN is a high-power, air-cooled variable frequency AC drive from the PowerFlex 755 series. It is designed for large industrial motors and demanding variable-speed applications where high current capacity, reliable motor control, network communication, and convenient local operation are required.

With a 400 VAC, three-phase input and a 567 A current rating, this model is positioned in the high-power range of the PowerFlex 755 platform. Its principal ratings are approximately 355 kW Light Duty, 315 kW Normal Duty, and 250 kW Heavy Duty.

The drive uses a Frame 8 construction and a 600 mm deep MCC-style Type 1 / IP20 enclosure. It is air cooled through forced airflow and uses an AC input with precharge. The configuration does not include DC input terminals or internal dynamic braking.

One of the most useful features of the AN2 configuration is its Enhanced LCD Full Numeric Handheld/Local HIM. This gives maintenance personnel and operators direct access to drive parameters, status information, alarms, faults, and commissioning functions.

The model is also a discontinued configuration, so it is particularly relevant when identifying existing equipment, maintaining installed systems, evaluating replacement equipment, or matching an older drive with a compatible newer configuration.

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1. Product Basic Information

The dimensions and weight above should be regarded as approximate reference values for the Frame 8, 600 mm deep configuration. Final installation dimensions can vary depending on the complete equipment arrangement and associated mounting hardware.

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2. Brand and Product Series

The PowerFlex 755 series is intended for applications requiring more advanced motor control than a basic general-purpose variable frequency drive.

It is designed for large industrial machinery where motor speed, torque, acceleration, deceleration, diagnostics, communication, and process integration are important.

The 20G1ABC567AN2NNNNN represents a high-current configuration within this product family.

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3. Detailed Technical Parameters

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4. Electrical Rating

The 567 A current rating is the defining electrical characteristic of this drive.

It provides substantial capacity for large industrial motors and places the model between lower-current configurations such as the 460 A and 540 A versions and larger 650 A and 750 A configurations.

The power ratings provide three different operating-duty levels.

These ratings should not be interpreted as three independent motor ratings that can be selected freely.

The correct rating depends on the actual motor current, load profile, acceleration requirements, overload duration, operating cycle, and application conditions.

For example, a large fan may make better use of the Light Duty rating, while a conveyor with substantial starting torque may need to be evaluated against the Heavy Duty rating.

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5. 400 VAC Three-Phase Input

The drive is designed around a 400 VAC three-phase industrial power system.

This makes it suitable for a wide range of industrial installations using 400 V-class three-phase power.

The three-phase configuration is appropriate for large industrial motors and allows the drive to regulate the motor’s output frequency and voltage according to the control requirements.

Typical equipment that can use this type of drive includes:

• Large pumps.
• Large fans.
• Industrial blowers.
• Compressors.
• Conveyors.
• Rollers.
• Mixers.
• Agitators.
• Material-handling machinery.
• Large production equipment.

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6. AC Input with Precharge

The 20G1ABC567AN2NNNNN uses an AC input with precharge.

Precharge is an important part of the input arrangement of a high-power drive.

The drive contains a substantial DC-link energy storage system, and controlled charging of the DC bus is necessary when the drive is energized.

The precharge arrangement helps manage this initial charging process.

The model does not provide DC input terminals, so the standard configuration is intended for conventional AC-fed operation.

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7. No DC Terminals

This particular configuration is specified without DC terminals.

This means the drive is not intended to be selected simply as a DC-bus connection point for a common DC system.

For conventional applications where each drive receives its own AC supply, this is generally a straightforward arrangement.

For systems requiring common DC bus operation, regeneration, or special energy-sharing arrangements, the complete application architecture needs to be evaluated separately.

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8. Filtering and CM Jumper

The model uses a filtered configuration with the CM jumper removed.

This is an important detail for electrical-system design.

Large variable frequency drives can produce high-frequency electrical noise as a result of their switching operation.

EMC performance can therefore be affected by:

• Motor cable length.
• Cable shielding.
• Grounding.
• Cabinet design.
• Motor construction.
• Cable routing.
• Separation between control and power wiring.
• Installation environment.

The internal filtering helps form part of the overall EMC design, but proper installation practices remain essential.

The CM jumper removed configuration should also be considered in relation to the grounding arrangement of the installation.

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9. Dynamic Braking

The 20G1ABC567AN2NNNNN is specified with no internal dynamic braking.

This is not necessarily a disadvantage.

For many pump, fan, blower, and continuous-process applications, the motor does not need to decelerate rapidly enough to require substantial braking energy management.

However, the issue becomes more important when the motor is driving a high-inertia load.

Applications that deserve additional braking evaluation include:

• High-inertia conveyors.
• Centrifuges.
• Large rollers.
• Hoisting equipment.
• Rapid-cycle machines.
• High-speed fans.
• Heavy material-handling equipment.
• Machinery requiring short stopping times.

If rapid deceleration is required, the system design should determine whether an external braking arrangement or another suitable method of handling regenerated energy is necessary.

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10. Enhanced LCD Full Numeric HIM

The Enhanced LCD Full Numeric HIM is one of the most important features distinguishing the AN2 configuration.

HIM stands for Human Interface Module.

The local interface provides a convenient method for technicians and operators to interact directly with the drive.

It can be used for activities such as:

• Monitoring drive status.
• Checking output frequency.
• Viewing motor current.
• Reviewing alarms.
• Reviewing fault conditions.
• Accessing drive parameters.
• Adjusting configuration settings.
• Performing commissioning.
• Checking diagnostic information.
• Performing local operating functions when appropriately configured.

For maintenance departments, this can be particularly valuable.

A technician can stand at the drive and immediately inspect its operating condition rather than depending entirely on a remote control system.

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11. Why the AN2 Configuration Is Useful

The AN2 configuration is a practical choice when local access is important.

A no-HIM version is often appropriate for a centralized control architecture where the drive is operated from a PLC, HMI, or SCADA system.

The AN2 version adds a physical local interface.

This provides two useful control paths:

Centralized Automation

PLC / HMI / SCADA → Network → Drive

Local Maintenance

Technician → HIM → Drive

This combination is particularly useful in large factories where the normal operating system is centralized but maintenance personnel still need direct access to individual drives.

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12. Product Introduction

The 20G1ABC567AN2NNNNN is a high-power industrial AC drive intended for large variable-speed motor applications.

It is not a compact machine drive.

Its Frame 8 construction, approximately 2102 mm height, and approximately 623 kg weight indicate that it is designed as a substantial floor-standing electrical assembly.

The 567 A capacity provides enough electrical headroom for large industrial motors, while the different duty ratings allow engineers to match the drive to different types of mechanical loads.

The drive also combines local operator access with networked control.

This makes it useful for both automated operation and hands-on maintenance.

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13. Product Applications

13.1 Large Conveyor Systems

Large conveyor systems are one of the most suitable applications for this type of drive.

Conveyors often require controlled acceleration to prevent sudden mechanical stress.

A variable frequency drive can provide gradual acceleration and controlled speed changes.

This can help reduce stress on:

• Conveyor belts.
• Gearboxes.
• Couplings.
• Bearings.
• Rollers.
• Mechanical structures.

Typical applications include:

• Bulk material handling.
• Mining equipment.
• Production lines.
• Warehouse systems.
• Transfer conveyors.
• Heavy industrial processing.

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14. Large Pumps

Large pumps are another important application.

Variable-speed operation allows pump output to be adjusted according to process demand.

Instead of operating the motor continuously at a fixed speed, the drive can adjust the motor speed to match the required process conditions.

Potential applications include:

• Industrial water systems.
• Cooling-water systems.
• Process circulation.
• Water treatment.
• Large pumping stations.
• Industrial fluid handling.

For large pumps, correct duty selection remains important because the motor’s actual current and load profile determine the appropriate drive rating.

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15. Large Fans and Blowers

Fans and blowers are often large continuous-duty loads.

The drive can adjust the motor speed to control airflow or pressure.

This can be useful in:

• Industrial ventilation.
• Furnace systems.
• Dust collection.
• Cooling systems.
• Process ventilation.
• Large air-handling equipment.

Fan applications can sometimes benefit from the higher Light Duty rating because the load characteristics may not require the same overload capability as heavy mechanical equipment.

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16. Compressors

Large compressors can require substantial motor current and carefully controlled acceleration.

The 567 A rating gives this drive the electrical capacity needed for large compressor motors, subject to the actual motor current and compressor duty cycle.

The integrated network capability can also be useful where compressor operation needs to be coordinated with other plant systems.

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17. Mixers and Agitators

Industrial mixers and agitators often require controlled acceleration and adjustable operating speed.

The drive can be used to control motor speed according to the process requirement.

Applications may include:

• Industrial mixing.
• Chemical processing.
• Water treatment.
• Material preparation.
• Process tanks.
• Production systems.

For applications with high starting torque, the Heavy Duty rating should be considered carefully.

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18. Material-Handling Equipment

The high-current capacity makes the drive suitable for large material-handling machinery.

Possible applications include:

• Heavy conveyors.
• Feed systems.
• Rollers.
• Transfer systems.
• Bulk handling.
• Production machinery.
• Processing lines.

The ability to control acceleration and speed can be particularly valuable for equipment where mechanical shock needs to be minimized.

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19. Large Production Machinery

The drive can also be applied to large production machines where motor speed must be coordinated with the manufacturing process.

The embedded EtherNet/IP capability allows operating information and control commands to be exchanged with a central automation system.

The local HIM then provides a convenient maintenance interface.

This combination is useful for production facilities where machine operation is automated but technicians still require local access.

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20. Main Product Advantages

20.1 567 A High-Current Capacity

The 567 A current rating is the primary strength of the model.

It gives the drive substantial capacity for large motors.

This makes it appropriate for machinery that is beyond the practical range of lower-current configurations.

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20.2 355 kW Light Duty Rating

The 355 kW Light Duty rating provides considerable capacity for applications with relatively moderate overload requirements.

This is particularly relevant for large fans, blowers, and certain pump applications.

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20.3 315 kW Normal Duty Rating

The 315 kW Normal Duty rating provides strong capacity for continuous industrial operation.

It is a useful reference point for general-purpose large machinery that does not have unusually severe overload requirements.

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20.4 250 kW Heavy Duty Rating

The 250 kW Heavy Duty rating gives the drive a lower but more demanding-duty power classification.

This is useful when the machinery requires higher torque or more frequent overload operation.

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20.5 Local Operator Interface

The Enhanced LCD Full Numeric HIM provides direct access to the drive.

This can simplify:

• Startup.
• Commissioning.
• Maintenance.
• Troubleshooting.
• Fault diagnosis.
• Parameter verification.

This is one of the main reasons to choose the AN2 configuration over a no-HIM version.

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20.6 Embedded EtherNet/IP

Integrated network communication makes the drive easier to integrate into a modern industrial automation system.

It can exchange operating data and control information with a central controller.

This can reduce the need for extensive point-to-point wiring.

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20.7 High-Power Frame 8 Construction

Frame 8 provides the physical and electrical platform necessary for high-current operation.

It is intended for substantial industrial installations rather than small machinery.

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20.8 Forced-Air Cooling

Forced-air cooling provides an effective method for removing heat from the drive’s power electronics.

For a 567 A drive, thermal management is a major part of reliable operation.

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20.9 Flexible Application Range

The drive can be applied across many industrial sectors and machine types.

It is not limited to one specific load.

This makes it useful for projects where multiple types of large motor-driven machinery need to be standardized around one drive platform.

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21. Mechanical Parameters

The approximately 623 kg weight is particularly important during project planning.

The drive should be transported using equipment suitable for its actual weight and dimensions.

The floor structure should also be checked before installation.

The approximately 2102 mm height should be considered when planning electrical-room clearances.

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22. Five Same-Series or Closely Related Models

The following models are useful for comparing current capacity, power rating, and configuration within the same general PowerFlex 755 range.

These five models provide a useful progression when selecting a drive according to motor current.

The 460 A version is appropriate when the motor requirement is lower.

The 540 A version provides additional current capacity.

The 567 A version is the subject model and provides a particularly useful combination of current and Light Duty power.

The 650 A and 750 A versions are intended for even larger motor applications.

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23. Five Popular Allen-Bradley Models for Comparison

These models are useful comparisons because they remain within the same high-power drive family while offering different current and power capacities.

The JN2 configurations are also particularly relevant when evaluating newer configurations with a similar local-HIM concept.

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24. Five 567 A Related Configurations

For replacement and engineering purposes, the different 567 A configurations can be compared directly.

This table demonstrates that the basic electrical capacity can remain very similar while the user interface and electrical configuration change.

For replacement projects, these differences should be checked carefully.

A replacement drive should not be selected solely because the model has the same current and kW rating.

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25. AN0 and AN2 Comparison

The AN0 and AN2 configurations are particularly close.

The major difference is the local operator interface.

The AN0 version is more appropriate for installations where the drive is controlled remotely.

The AN2 version is better suited to installations where technicians need direct access to the drive.

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26. AN2 and JN2 Comparison

A particularly important comparison is between the older AN2 configuration and the newer JN2 configuration.

The two configurations are very similar in terms of core power capacity.

However, the CM jumper configuration is different, so replacement should be evaluated from the complete electrical-system perspective rather than treating the two catalog numbers as mechanically identical.

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27. Application Suitability

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28. Local Maintenance Benefits

One of the most practical reasons to choose the AN2 version is maintenance access.

When a large industrial machine stops unexpectedly, maintenance personnel need to determine quickly whether the problem originates from:

• The motor.
• The mechanical load.
• The incoming power.
• The drive.
• The control system.
• The communication network.

The local HIM provides a convenient point for examining drive status and fault information.

This can reduce the time needed for basic troubleshooting.

For large production facilities, this can be particularly valuable because the cost of machine downtime can be significant.

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29. Centralized Automation Benefits

The drive’s embedded EtherNet/IP capability provides a complementary advantage.

Normal operation can be managed through a centralized automation system.

The PLC can issue commands and monitor drive status.

An HMI can display:

• Motor speed.
• Drive status.
• Current.
• Frequency.
• Faults.
• Alarms.
• Operating information.

Meanwhile, the local HIM remains available for maintenance and commissioning.

This combination makes the drive suitable for large automated production facilities.

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30. Installation Considerations

Because the drive is a large Frame 8 unit, mechanical planning is important.

The approximate 623 kg weight requires appropriate transportation and lifting equipment.

The approximate 2102 mm height should be checked against the available electrical-room height.

The 600 mm depth should be incorporated into cabinet and MCC planning.

Adequate ventilation must also be provided because the unit is forced-air cooled.

The installation should allow enough space for:

• Airflow.
• Cable connection.
• Inspection.
• Maintenance.
• HIM operation.
• Fan servicing.
• Component replacement.
• Troubleshooting.

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31. Electrical Installation Considerations

For a drive of this power level, electrical installation should be carefully engineered.

Important considerations include:

• Incoming power protection.
• Motor cable sizing.
• Grounding.
• Cable shielding.
• Motor insulation.
• Cable length.
• EMC requirements.
• Short-circuit considerations.
• Cabinet ventilation.
• Control wiring separation.
• Communication wiring.
• Emergency-stop architecture.
• Braking requirements.
• Motor overload requirements.

The drive should be selected according to the actual motor full-load current and application duty rather than simply matching the motor’s nominal kW.

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32. Main Advantages at a Glance

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33. Five Related Models – Detailed Comparison

The progression from 460 A to 750 A makes these models useful for selecting the appropriate current capacity.

The 567 A model is particularly interesting because it provides more Light Duty capacity than the 540 A model without moving all the way to the 650 A configuration.

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34. Five Popular Models – Detailed Comparison

The approximate weight values are shown as Frame 8 reference values rather than guaranteed shipping weights.

For final mechanical planning, the actual equipment configuration should always be checked.

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35. Recommended Selection by Motor Application

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36. Overall Product Evaluation

The Allen-Bradley 20G1ABC567AN2NNNNN is a substantial high-power industrial AC drive designed for large motors and demanding variable-speed machinery.

Its 567 A current capacity makes it suitable for large motor applications, while the combination of 355 kW Light Duty, 315 kW Normal Duty, and 250 kW Heavy Duty ratings gives engineers flexibility when matching the drive to different load profiles.

The PowerFlex 755 platform provides a combination of motor-control capability, communication, diagnostics, and local interface functions that is well suited to industrial automation.

The Enhanced LCD Full Numeric Handheld/Local HIM is a particularly useful feature of the AN2 version.

For maintenance personnel, it provides direct access to the drive and can simplify commissioning, troubleshooting, and parameter verification.

The embedded EtherNet/IP capability provides the other side of the system architecture.

Normal operation can be handled through a centralized PLC or HMI while technicians retain local access through the HIM.

The Frame 8 construction, approximately 2102 × 606 × 600 mm dimensions, and approximately 623 kg weight mean that this is a major industrial installation and should be planned accordingly.

Floor loading, lifting, ventilation, cable routing, service access, and electrical-room clearance should all be considered.

The absence of internal dynamic braking is also an important application consideration.

For applications with slow deceleration, this may not be an issue.

For high-inertia loads or applications requiring rapid stopping, braking and regenerated energy should be evaluated as part of the system design.

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37. Final Technical Summary

Conclusion

The Allen-Bradley 20G1ABC567AN2NNNNN is a high-power PowerFlex 755 air-cooled AC drive intended for large industrial motors and demanding variable-speed applications.

Its 567 A current rating, 355 kW Light Duty capacity, 315 kW Normal Duty capacity, and 250 kW Heavy Duty capacity make it a strong option for large conveyors, pumps, fans, blowers, compressors, mixers, material-handling equipment, and other large industrial machinery.

The Enhanced LCD Full Numeric Handheld/Local HIM is one of the model’s most useful practical features. It gives maintenance personnel direct access to the drive and can make commissioning and troubleshooting considerably easier.

The integrated EtherNet/IP capability complements the local HIM by allowing the drive to participate in a centralized automation system.

From an installation perspective, this is a large Frame 8 drive. The approximate 2102 × 606 × 600 mm dimensions and 623 kg weight should be incorporated into the mechanical and electrical planning from the beginning of the project.

The model is particularly well suited to installations where high motor current, substantial power capacity, network communication, and local maintenance access are all important.

For new equipment selection or replacement planning, the most important factors to check are the motor’s actual full-load current, duty classification, acceleration and overload requirements, braking requirements, electrical grounding arrangement, available installation space, cooling conditions, and control-system architecture.

Overall, the 20G1ABC567AN2NNNNN is best characterized as a high-current, high-power, Frame 8 industrial AC drive with local operator capability, designed for serious continuous-duty and variable-speed industrial applications.