Introduction

The Allen-Bradley 20G11NE022AA0NNNNN PowerFlex 755 AC Drive is an air-cooled variable-frequency drive developed for industrial three-phase motor-control systems. It combines a 22 A normal-duty output rating with embedded EtherNet/IP communication, providing adjustable motor-speed control and integration with PLC-based automation networks.

This Frame 3 configuration is designed for 600 VAC three-phase applications and supports motor ratings of 20 HP under normal-duty operation and 15 HP under heavy-duty operation. Its configuration includes AC input with precharge, an integrated dynamic braking transistor, and EMC filtering. The common-mode capacitor jumper is removed, making grounding arrangements an important consideration during system integration.

The PowerFlex 755 series is suitable for conveyor systems, pumps, fans, processing machinery, and automated manufacturing equipment. Its communication capabilities allow motor-control functions to be incorporated into broader automation architectures, supporting centralized monitoring and coordinated machine operation.

For maintenance and replacement projects, users should verify the complete catalog number, input voltage, motor ratings, braking requirements, and filtering configuration. This AA0 catalog version has been discontinued, and Rockwell Automation identifies 20G11NE022JA0NNNNN as its direct replacement.

Technical Specifications

Parameter	Specification
Brand	Allen-Bradley
Model	20G11NE022AA0NNNNN
Product Series	PowerFlex 755
Product Type	AC Drive / Variable Frequency Drive
Input Voltage Class	600 VAC
Input Phase	3-Phase
Normal-Duty Output Current	22 A
Heavy-Duty Output Current	17 A
Normal-Duty Motor Rating	20 HP
Heavy-Duty Motor Rating	15 HP
Frame Size	Frame 3
Cooling Method	Forced Air
Communication	Embedded EtherNet/IP
Input Configuration	AC Input with Precharge
Enclosure	IP20/IP00, NEMA/UL Open Type
Dynamic Braking	Integrated DB Transistor
EMC Filtering	Filtered
Common-Mode Capacitor Jumper	Removed
HIM Configuration	Blank (No HIM)
Dimensions	454 × 212 × 190 mm
Weight	11 kg / 24.25 lb
Lifecycle Status	Discontinued
Direct Replacement	20G11NE022JA0NNNNN

Recommended Related Models

Model	Product Description
20G11NE017AA0NNNNN	PowerFlex 755 AC Drive, 17 A
20G11NE027AA0NNNNN	PowerFlex 755 AC Drive, 27 A
20G11NE022JA0NNNNN	PowerFlex 755 AC Drive, Direct Replacement
20G11NE032AA0NNNNN	PowerFlex 755 AC Drive, 32 A

Popular Related Models

Model	Product Description
20G11NE011AA0NNNNN	PowerFlex 755 AC Drive, 11 A
20G11NE017AA0NNNNN	PowerFlex 755 AC Drive, 17 A
20G11NE022AA0NNNNN	PowerFlex 755 AC Drive, 22 A
20G11NE022JA0NNNNN	PowerFlex 755 AC Drive, Updated Replacement Version

Applications

The Allen-Bradley 20G11NE022AA0NNNNN PowerFlex 755 AC Drive is designed for industrial motor-control applications requiring adjustable speed, reliable torque performance, and integration with automated control systems. With a 22 A normal-duty output rating and embedded EtherNet/IP communication, it supports a range of medium-power industrial machinery.

Typical applications include:

Conveyor and Material Handling Systems: Regulates motor speed for production lines, automated transport, and material-processing equipment.
Industrial Pumping: Adjusts pump motor speed according to process flow and pressure requirements.
Ventilation Equipment: Controls industrial fans and air-handling systems.
Processing Machinery: Supports motor operation in mixers, feeders, and other production equipment.
Automated Manufacturing: Connects motor-control functions with PLC-based automation networks.

Advantages

1. Embedded EtherNet/IP Communication

The integrated EtherNet/IP interface enables communication with compatible Allen-Bradley controllers and industrial network devices, supporting centralized monitoring and coordinated machine operation.

2. Dual-Duty Current Ratings

The drive provides 22 A output current for normal-duty applications and 17 A for heavy-duty operation. This flexibility allows engineers to select the appropriate rating according to motor load and overload requirements.

3. Integrated Dynamic Braking Transistor

The built-in braking transistor supports controlled motor deceleration when paired with a suitably rated external braking resistor. This is useful for machinery requiring frequent stopping or controlled speed reduction.

4. EMC Filtering

The integrated EMC filter helps address electromagnetic interference requirements in compatible installations. This AA0 configuration has the common-mode capacitor jumper removed, which should be considered when checking grounding and power-distribution arrangements.

5. Forced-Air Cooling

The forced-air cooling system helps dissipate heat generated during drive operation. Proper cabinet ventilation and regular inspection of cooling components help maintain reliable performance.

6. Flexible Industrial Integration

The PowerFlex 755 platform provides configurable drive functions and communication capabilities, making it suitable for integration into different industrial control architectures.

Technical FAQs

Q1: What is the rated output current of the 20G11NE022AA0NNNNN?

The drive has a continuous output-current rating of 22 A for normal-duty operation and 17 A for heavy-duty operation. The correct operating rating depends on the motor and application load.

Q2: What input voltage does this PowerFlex 755 model require?

This model belongs to the 600 VAC three-phase voltage class. The incoming supply must meet the drive's electrical requirements before installation.

Q3: What motor power ratings does this drive support?

The listed motor ratings are 20 HP for normal-duty applications and 15 HP for heavy-duty applications. Motor selection should also consider load characteristics and overload requirements.

Q4: Does the 20G11NE022AA0NNNNN support EtherNet/IP?

Yes. It features embedded EtherNet/IP communication for exchanging control commands, reference values, and operating information with compatible PLCs and automation devices.

Q5: Does this drive include a dynamic braking transistor?

Yes. The drive has an integrated dynamic braking transistor. An external braking resistor is required when dynamic braking is used, and its resistance and power ratings must comply with the manufacturer's specifications.

Q6: What is the function of the common-mode capacitor jumper?

The jumper affects the drive's common-mode electrical connection to ground. Its configuration should be evaluated against the installation's grounding method and power-distribution system.

Q7: Can the drive be controlled by a ControlLogix or CompactLogix PLC?

Yes. Compatible ControlLogix and CompactLogix controllers can communicate with the drive through EtherNet/IP. Correct network addressing, controller configuration, and drive parameter settings are required.

Q8: What can cause an overcurrent fault during acceleration?

Possible causes include excessive mechanical load, an acceleration time that is too short, incorrect motor parameters, wiring problems, or an unsuitable current limit. Check the fault history and application conditions before restarting the equipment.

Q9: How can overheating problems be prevented?

Inspect the cooling fan, cabinet ventilation, ambient temperature, airflow clearance, and accumulated dust. Also confirm that the motor load remains within the applicable drive rating.

Q10: What should be considered when replacing the AA0 version with the JA0 version?

Rockwell Automation identifies 20G11NE022JA0NNNNN as the direct replacement. The two catalog numbers have different common-mode capacitor jumper configurations: the AA0 version has the jumper removed, while the JA0 version has it installed. Verify grounding compatibility and installation requirements before substitution.

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