Introduction

The Allen-Bradley 20G11NE011AA0NNNNN PowerFlex 755 AC Drive is an air-cooled variable-frequency drive developed for industrial motor-control applications. It combines an 11 A normal-duty output rating with embedded EtherNet/IP communication, providing a solution for machinery that requires adjustable motor speed and integration with PLC-based automation systems.

This model is designed for 600 V AC three-phase applications and supports motor ratings of 10 HP under normal-duty operation and 7.5 HP under heavy-duty operation. Its configuration includes an EMC filter, an integrated dynamic braking transistor, and an AC input with precharge. The common-mode capacitor jumper is removed, which should be taken into account when checking grounding and installation requirements.

The PowerFlex 755 platform is used in material handling, pumping, ventilation, and general industrial machinery. Its communication and drive-control capabilities make it suitable for systems that need coordinated motor operation and access to operating information.

For equipment maintenance and replacement projects, users should verify the complete catalog number, electrical ratings, braking arrangement, and network configuration. This particular catalog number has been discontinued, and Rockwell Automation identifies 20G11NE011JA0NNNNN as its direct replacement.

Technical Specifications

Parameter	Specification
Brand	Allen-Bradley
Model	20G11NE011AA0NNNNN
Product Series	PowerFlex 755
Product Type	AC Drive / Variable Frequency Drive
Input Voltage Class	600 VAC
Input Phase	3-Phase
Continuous Output Current	11 A Normal Duty / 9 A Heavy Duty
Motor Rating	10 HP Normal Duty / 7.5 HP Heavy Duty
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
Filtering	EMC Filter
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	20G11NE011JA0NNNNN

Recommended Related Models

Model	Product Description
20G11NE009AA0NNNNN	PowerFlex 755 AC Drive, 9 A
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20G11NE022AA0NNNNN	PowerFlex 755 AC Drive, 22 A
20G11NE011JA0NNNNN	PowerFlex 755 AC Drive, Direct Replacement

Popular Related Models

Model	Product Description
20G11ND8P0JA0NNNNN	PowerFlex 755 AC Drive, 8 A
20G11NE011AA0NNNNN	PowerFlex 755 AC Drive, 11 A
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20G11NE022AA0NNNNN	PowerFlex 755 AC Drive, 22 A

Applications

The PowerFlex 755 is designed for industrial motor-control systems that require adjustable speed, controlled acceleration, and integration with automation networks. With an 11 A output rating and a 600 V three-phase input class, the 20G11NE011AA0NNNNN is suitable for a range of medium-power industrial applications.

Common applications include:

Material Handling: Controls conveyor motors used in production, sorting, and transport systems.
Pumping Systems: Adjusts pump speed to meet changing flow and pressure requirements.
Industrial Ventilation: Provides variable-speed control for fans and air-handling equipment.
Processing Machinery: Supports motor operation in mixers, feeders, and other production equipment.
Automated Production Lines: Connects motor-control functions with PLC-based automation systems.

Advantages

1. Integrated EtherNet/IP Communication

Embedded EtherNet/IP enables communication with compatible controllers and industrial networks, supporting centralized monitoring and drive control.

2. Flexible Motor Capacity

The drive provides dual-duty ratings of 10 HP for normal-duty applications and 7.5 HP for heavy-duty applications, allowing selection according to the motor load profile.

3. Built-In Dynamic Braking Transistor

The integrated braking transistor supports controlled deceleration when used with a properly selected external braking resistor.

4. EMC Filtering Configuration

The built-in EMC filter helps address electromagnetic interference requirements in compatible installations. The common-mode capacitor jumper is removed in this configuration, so grounding and electrical installation requirements should be checked before commissioning.

5. Precharge Input Design

The AC input configuration includes precharge functionality to help manage DC bus charging during startup.

6. Industrial Automation Compatibility

As part of the PowerFlex 755 family, this drive supports integration into systems involving PLC control, motor feedback, and coordinated machine operation.

Technical FAQs

Q1: What is the rated output current of the 20G11NE011AA0NNNNN?

The drive has a continuous output-current rating of 11 A under normal-duty conditions. Its heavy-duty current rating is 9 A. The selected rating must match the motor's load requirements.

Q2: What power supply is required for this drive?

This model belongs to the 600 V AC, three-phase input class. Confirm the actual supply voltage and installation requirements against the drive nameplate before connecting power.

Q3: What is the difference between normal-duty and heavy-duty ratings?

Normal-duty operation is intended for applications with comparatively moderate overload requirements. Heavy-duty operation is intended for applications with higher torque or more demanding overload conditions. The corresponding motor ratings for this model are 10 HP and 7.5 HP.

Q4: Does this model support EtherNet/IP?

Yes. It features embedded EtherNet/IP communication for data exchange with compatible PLCs and other supported automation devices.

Q5: Does the drive include a dynamic braking transistor?

Yes. The catalog configuration includes a dynamic braking transistor. An external braking resistor is needed when the application requires dynamic braking.

Q6: What should be checked when connecting a braking resistor?

Check the resistor's resistance and power ratings against the drive documentation. Confirm wiring, thermal protection, ventilation, and installation clearances before operating the braking circuit.

Q7: Why is the common-mode capacitor jumper configuration important?

The common-mode capacitor jumper affects the drive's electrical relationship to ground and its compatibility with certain power-distribution and grounding arrangements. Follow the manufacturer's installation instructions for the actual supply system.

Q8: Can the drive be controlled by a PLC?

Yes. A compatible PLC can send control commands and reference values through EtherNet/IP. The network address, communication parameters, and drive control configuration must be set correctly.

Q9: What can cause an overcurrent fault during motor startup?

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

Q10: Is the 20G11NE011AA0NNNNN still available as a current-production model?

Rockwell Automation lists this catalog number as discontinued, with June 30, 2024 as its discontinuation date. The manufacturer identifies 20G11NE011JA0NNNNN as its direct replacement. Confirm configuration compatibility before substituting the newer catalog number.

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