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Allen-Bradley 20G1ABD740AN2NNNNN PowerFlex 755 AC Drive

1. Product Introduction

The 20G1ABD740AN2NNNNN is a high-power PowerFlex 755 AC drive designed for large industrial motor-control applications.

It is an air-cooled, three-phase, 480 VAC drive with a nominal output current rating of 740 A. The drive belongs to the PowerFlex 755 series and is part of the broader PowerFlex 750-Series family.

This model is intended for large motors and demanding industrial equipment where high current capacity, adjustable-speed control, reliable acceleration and deceleration, network communication, and flexible motor-control functions are required.

The 740 A current rating places this drive in the large-frame industrial category. It is substantially larger than compact machine-level variable-frequency drives and is normally associated with major industrial equipment such as large conveyors, pumps, fans, blowers, crushers, mixers, mining machinery, and process equipment.

The catalog configuration provides approximately 700 HP Light Duty, 650 HP Normal Duty, and 500 HP Heavy Duty capability.

One of the most important characteristics of the AN2 configuration is its enhanced LCD full-numeric handheld/local HIM.

This gives maintenance personnel and commissioning engineers direct access to drive parameters, operating information, alarms, faults, and diagnostic functions without requiring a permanently door-mounted operator interface.

The drive uses AC input with precharge, has no DC input terminals, uses an EMC-filtered configuration, has no internal dynamic braking, and is constructed as a Frame 8, 600 mm deep MCC-style drive.

The model is an older configuration and is no longer in the active product lifecycle. The direct replacement is 20G1ABD740JN2NNNNN.

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2. Brand and Series

Item	Specification
Brand	Allen-Bradley
Product Family	PowerFlex
Series	PowerFlex 755
Broader Series	PowerFlex 750-Series
Product Type	High-power AC variable-frequency drive
Catalog Number	20G1ABD740AN2NNNNN
Drive Type	PowerFlex 755 AC Packaged Drive
Cooling	Air cooled / forced air
Voltage Class	480 VAC
Phase	Three-phase
Output Current	740 A
Frame	Frame 8
HIM Configuration	Enhanced LCD, full numeric
HIM Type	Handheld / local HIM
Enclosure	Type 1 / IP20
MCC Style	600 mm deep
Input	AC input with precharge
DC Terminals	None
Filtering	EMC filter
CM Jumper	Removed
Dynamic Braking	None
Communication	Embedded EtherNet/IP
Main Application	Large industrial motor control

The PowerFlex 755 series is an architecture-class AC drive platform intended for applications that require more functionality and power capacity than basic general-purpose drives.

Its modular architecture allows the same drive family to be used across a wide range of industrial machinery.

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3. Detailed Product Parameters

Parameter	Specification
Model	20G1ABD740AN2NNNNN
Product	PowerFlex 755 AC Drive
Product Type	Air-Cooled AC Drive
Input Voltage	480 VAC nominal
Input Voltage Class	380–480 VAC
Input Phase	Three-phase
Output Current	740 A
Light Duty Rating	700 HP
Normal Duty Rating	650 HP
Heavy Duty Rating	500 HP
Light Duty Power	Approximately 522 kW
Normal Duty Power	Approximately 485 kW
Heavy Duty Power	Approximately 373 kW
DC Bus Class	Approximately 650 VDC
Input Type	AC input with precharge
DC Input Terminals	None
Cooling Method	Forced air
Frame Size	Frame 8
Enclosure Type	Type 1
Protection	IP20
MCC Style	600 mm deep
Filtering	EMC Filter
CM Jumper	Removed
Dynamic Braking	None
HIM	Enhanced LCD, full numeric
HIM Arrangement	Handheld / local
Communication	Embedded EtherNet/IP
Motor Control	Adjustable-frequency AC motor control
Typical Control Methods	V/Hz, sensorless vector, flux-vector and related control modes
Installation	Large industrial / MCC-style
Approx. Height	2100 mm
Approx. Width	610 mm
Approx. Depth	600 mm
Approx. Dimensions	2100 × 610 × 600 mm
Approx. Dimensions in Inches	82.7 × 24.0 × 23.6 in
Approx. Weight	Approximately 544 kg
Approx. Weight in Pounds	Approximately 1,200 lb
Mounting	Vertical
Application Class	High-power industrial

The dimensions and weight should be treated as approximate engineering values for the large Frame 8 configuration. The final cabinet arrangement, installed accessories, packaging, and mechanical configuration can affect the overall installation envelope and shipping weight.

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4. Electrical Rating

The 20G1ABD740AN2NNNNN is designed for a 480 VAC, three-phase industrial power system.

Its rated output current is approximately 740 A.

This is the most important electrical characteristic of the drive and determines the general size of motor that can be controlled.

Electrical Rating	Value
Input Voltage	480 VAC
Phase	3 PH
Output Current	740 A
Light Duty	700 HP
Normal Duty	650 HP
Heavy Duty	500 HP
Light Duty	Approx. 522 kW
Normal Duty	Approx. 485 kW
Heavy Duty	Approx. 373 kW
Input Frequency	Approximately 47–63 Hz class
DC Bus	Approximately 650 VDC class
Input Type	AC with precharge
DC Terminals	None

The actual motor should always be selected according to its nameplate current and the required operating duty.

Horsepower is useful for initial selection, but motor current is the more important parameter for final drive sizing.

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5. Duty Ratings

The PowerFlex 755 platform uses different duty classifications to match the drive to the mechanical characteristics of the application.

For this model, the approximate ratings are:

Duty Classification	Horsepower	Approx. kW	Typical Application
Light Duty	700 HP	522 kW	Large pumps, fans and variable-torque loads
Normal Duty	650 HP	485 kW	General industrial machinery
Heavy Duty	500 HP	373 kW	High-torque and demanding loads

The 700 HP Light Duty rating is useful for applications where the load has a variable-torque profile.

Large centrifugal pumps and fans are typical examples.

The 650 HP Normal Duty rating provides substantial capacity for general industrial machinery.

The 500 HP Heavy Duty rating is appropriate when the motor and machine require greater overload capability.

The drive should therefore be selected according to the actual mechanical load rather than simply selecting the highest horsepower number.

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6. AN2 Handheld / Local HIM

The AN2 configuration is particularly useful because it includes an enhanced LCD full-numeric handheld/local HIM.

This differentiates the model from the AN0 configuration.

The AN0 version does not include a local HIM, while the AN2 configuration provides a local operator and maintenance interface.

The HIM can be used for:

• Drive startup.
• Parameter configuration.
• Local monitoring.
• Fault diagnosis.
• Alarm review.
• Drive status checking.
• Motor testing.
• Speed reference adjustment.
• Troubleshooting.
• Maintenance.

For large industrial equipment, a local HIM can save considerable maintenance time.

A technician can work directly with the drive instead of relying entirely on a remote PLC or HMI system.

This is particularly useful during commissioning, maintenance, and fault investigation.

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7. Difference Between AN0, AN2 and AN4

The 740 A PowerFlex 755 family includes different operator-interface configurations.

Model	Current	LD / ND / HD	HIM	Main Characteristic
20G1ABD740AN0NNNNN	740 A	700 / 650 / 500 HP	None	Centralized control
20G1ABD740AN2NNNNN	740 A	700 / 650 / 500 HP	Handheld/local LCD	Local commissioning and maintenance
20G1ABD740AN4NNNNN	740 A	700 / 650 / 500 HP	Door-mounted LCD	Front-panel operator access

The requested AN2 model is a good compromise between a no-HIM architecture and a permanent door-mounted HIM.

It provides local access when required without requiring the operator interface to be permanently mounted in the cabinet door.

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8. AC Input With Precharge

The drive uses an AC input with precharge configuration.

Precharge is important for a high-power drive because the DC-link capacitors represent a substantial electrical load when the drive is first energized.

The precharge system controls the initial charging process and helps limit the initial current surge.

The drive does not provide conventional DC input terminals in this configuration.

The incoming power system should therefore be designed around the AC input requirements.

Important considerations include:

• Incoming voltage.
• Three-phase supply.
• Feeder capacity.
• Protective devices.
• Short-circuit conditions.
• Grounding.
• Cable sizing.
• Disconnect requirements.
• Power quality.
• EMC considerations.

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9. EMC Filter

The 20G1ABD740AN2NNNNN uses an EMC-filtered configuration.

EMC filtering is important in industrial environments where variable-frequency drives operate close to:

• PLC equipment.
• Industrial Ethernet.
• Instrumentation.
• Sensors.
• Analog measurement systems.
• Communication equipment.
• Other variable-frequency drives.

High-power switching equipment can produce electrical noise.

The filtering system helps manage this noise as part of the overall installation.

However, the filter should always be considered together with the grounding system, motor cable construction, cable length, cabinet arrangement, and installation method.

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10. CM Jumper Configuration

The requested AN2 model uses the older configuration with the CM jumper removed.

This is an important detail when comparing it with the newer J-series replacement.

The direct replacement, 20G1ABD740JN2NNNNN, uses the newer filtered configuration with the CM jumper installed.

This difference can matter when replacing an existing drive.

During a replacement, engineers should review:

• Grounding.
• EMC behavior.
• Motor cable configuration.
• Common-mode considerations.
• Filter configuration.
• Existing cabinet wiring.

The replacement should therefore be treated as an engineered electrical substitution rather than simply a catalog-number exchange.

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11. Dynamic Braking

The 20G1ABD740AN2NNNNN does not include internal dynamic braking as part of this configuration.

This is important for applications where a large motor must decelerate quickly.

During deceleration, the motor can return energy to the drive.

If the machine has significant inertia, the DC bus voltage can rise.

The application designer must determine how the regenerative energy will be handled.

Possible approaches include:

• Longer deceleration times.
• Mechanical braking.
• External braking systems.
• Regenerative equipment.
• Process-controlled stopping.

Applications involving high-inertia conveyors, crushers, large rotating equipment, or rapid stopping should receive particular attention.

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12. Motor Control Capability

The PowerFlex 755 platform supports flexible motor-control functions.

Depending on the motor and application, control methods can include:

• Volts-per-Hertz.
• Sensorless vector.
• Flux vector.
• Encoder-based control.
• Speed control.
• Torque control.
• Induction motor control.
• Compatible permanent-magnet motor control.

This allows the same basic drive architecture to be used for different types of industrial equipment.

For example, a fan may prioritize stable speed control.

A pump may require smooth variable-speed operation.

A conveyor may require controlled acceleration.

A crusher may require higher torque and overload capability.

A process machine may require close coordination with a PLC.

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13. Embedded EtherNet/IP

The PowerFlex 755 platform provides strong industrial network integration.

Embedded EtherNet/IP can be used to exchange operating information with a central automation system.

Typical data can include:

• Start command.
• Stop command.
• Speed reference.
• Actual speed.
• Output frequency.
• Output current.
• Drive status.
• Fault status.
• Alarm information.
• Diagnostic information.

This allows the drive to become part of a larger plant-control architecture.

For example, a PLC can control the motor while an HMI displays the drive’s operating condition.

This is especially useful for large plants with many high-power motors.

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14. Cooling System

The drive uses forced-air cooling.

Because the output current is approximately 740 A, thermal management is an important part of the installation.

The cabinet or MCC section must provide sufficient airflow.

Hot exhaust air should not be allowed to recirculate directly into the cooling-air intake.

Important considerations include:

• Ambient temperature.
• Airflow.
• Fan condition.
• Cabinet ventilation.
• Dust accumulation.
• Cooling path.
• Exhaust arrangement.

In mining, cement, aggregate, steel, and other dusty environments, cooling maintenance is particularly important.

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15. Dimensions and Weight

Mechanical Parameter	Approximate Value
Height	2100 mm
Width	610 mm
Depth	600 mm
Dimensions H × W × D	2100 × 610 × 600 mm
Dimensions H × W × D	82.7 × 24.0 × 23.6 in
Frame	Frame 8
MCC Depth	600 mm
Enclosure	Type 1 / IP20
Mounting	Vertical
Approx. Weight	544 kg
Approx. Weight	Approximately 1,200 lb
Equipment Class	Large industrial drive
Handling	Heavy equipment handling required

The approximately 544 kg equipment weight should be considered during installation planning.

The drive should not be treated as a small wall-mounted inverter.

Transportation, lifting, floor loading, cabinet construction, and service access should be evaluated before installation.

Actual installed and shipping weight may vary depending on packaging, accessories, and the final configuration.

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16. Product Applications

16.1 Large Conveyors

Large conveyors are a natural application for this drive.

Mining conveyors, bulk-material conveyors, cement conveyors, and aggregate conveyors can require extremely large motors.

The drive can provide controlled acceleration and speed regulation.

Controlled acceleration helps reduce sudden mechanical stress on:

• Conveyor belts.
• Gearboxes.
• Couplings.
• Shafts.
• Bearings.
• Drive pulleys.

For large conveyor systems, network communication can also provide centralized monitoring.

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16.2 Mining Machinery

Mining facilities often contain some of the largest motor loads in industrial plants.

The 740 A PowerFlex 755 configuration can be applied to:

• Ore conveyors.
• Crushers.
• Large pumps.
• Ventilation fans.
• Material-handling systems.
• Processing machinery.
• Dewatering equipment.

Mining applications often require careful consideration of dust, temperature, ventilation, mechanical loading, and maintenance access.

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16.3 Large Pumps

Large pumps are another major application.

Examples include:

• Water-treatment pumps.
• Wastewater pumps.
• Mine dewatering pumps.
• Cooling-water pumps.
• Process pumps.
• High-pressure pumps.
• Industrial circulation pumps.

Variable-speed control can allow the pump to operate according to actual process demand.

This is particularly useful in large water and process systems.

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16.4 Large Fans

Large fans and blowers can require hundreds of horsepower.

Potential applications include:

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

The drive can regulate motor speed according to process demand.

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16.5 Crushers

Crushers can produce substantial changes in motor load.

They can require high starting torque and strong overload capability.

The Heavy Duty rating should therefore be evaluated carefully when selecting the drive for crusher service.

The actual motor current and crusher duty cycle should determine the final drive selection.

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16.6 Mixers and Agitators

Large industrial mixers can require high starting torque.

The drive can provide controlled acceleration and adjustable speed.

This can reduce mechanical stress on:

• Gearboxes.
• Shafts.
• Couplings.
• Bearings.
• Seals.

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16.7 Cement and Aggregate Equipment

Cement and aggregate plants commonly use large motors for:

• Conveyors.
• Crushers.
• Fans.
• Pumps.
• Mixers.
• Material-handling equipment.

The 740 A PowerFlex 755 is well suited to applications in this power range.

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16.8 Process Machinery

The drive can also be applied to large process machines.

Typical industries include:

• Chemical processing.
• Metals.
• Pulp and paper.
• Rubber.
• Manufacturing.
• Bulk material processing.
• Industrial production.

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17. Main Product Advantages

17.1 High Current Capacity

The 740 A output rating is the most obvious advantage.

It allows the drive to handle very large motors and machinery.

This makes it suitable for applications where smaller variable-frequency drives cannot provide sufficient current.

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17.2 High Horsepower Capacity

The drive provides approximately:

• 700 HP Light Duty.
• 650 HP Normal Duty.
• 500 HP Heavy Duty.

This gives the same drive architecture flexibility across several industrial load categories.

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17.3 Local HIM for Maintenance

The AN2 configuration provides a handheld/local enhanced LCD HIM.

This is particularly useful for commissioning and maintenance.

Technicians can inspect parameters and fault information directly at the drive.

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17.4 Centralized Network Control

Although the model has a local HIM, it can also be integrated into a centralized automation system.

This provides both local maintenance access and remote control.

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17.5 Flexible Motor Control

The PowerFlex 755 platform supports several control methods.

This makes it suitable for different types of motors and mechanical loads.

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17.6 Large Industrial Construction

The Frame 8 architecture is designed for high-power industrial installations.

It is appropriate for large MCC rooms and dedicated industrial drive cabinets.

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17.7 Industrial Communication

EtherNet/IP integration makes the drive suitable for plants where motor control, diagnostics, and process information need to be integrated into a common network.

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18. Five Recommended Same-Series or Related Models

The following five models are closely related to 20G1ABD740AN2NNNNN.

Model	Series	Voltage	Output Current	LD / ND / HD	HIM	Dimensions	Weight
20G1ABD740JN2NNNNN	PowerFlex 755	480 VAC, 3 PH	740 A	700 / 650 / 500 HP	Handheld/local LCD	Approx. 2100 × 610 × 600 mm	Approx. 544–635 kg
20G1ABD740JN0NNNNN	PowerFlex 755	480 VAC, 3 PH	740 A	700 / 650 / 500 HP	No HIM	Approx. 2100 × 610 × 600 mm	Approx. 544–635 kg
20G1ABD740JN4NNNNN	PowerFlex 755	480 VAC, 3 PH	740 A	700 / 650 / 500 HP	Door-mounted LCD	Approx. 2100 × 610 × 600 mm	Approx. 544–635 kg
20G1ABD710JN2NNNNN	PowerFlex 755	480 VAC, 3 PH	710 A	650 / 600 / 450 HP	Handheld/local LCD	Approx. 2100 × 610 × 600 mm	Approx. 600+ kg
20G1ABD617JN2NNNNN	PowerFlex 755	480 VAC, 3 PH	617 A	600 / 500 / 400 HP	Handheld/local LCD	Approx. 2100 × 610 × 600 mm	Approx. 623–635 kg

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19. Direct Replacement – 20G1ABD740JN2NNNNN

The most important related model is 20G1ABD740JN2NNNNN.

It is the direct replacement for the requested 20G1ABD740AN2NNNNN.

The replacement maintains the same basic power class:

• 740 A.
• 480 VAC.
• Three-phase.
• 700 HP Light Duty.
• 650 HP Normal Duty.
• 500 HP Heavy Duty.
• Frame 8.
• 600 mm deep MCC-style construction.
• Air-cooled architecture.
• AC input with precharge.
• No DC input terminals.
• No internal dynamic braking.
• Handheld/local enhanced LCD HIM.

The main configuration detail to review is the CM-jumper arrangement.

The older AN2 configuration uses the filtered arrangement with the CM jumper removed.

The newer JN2 configuration uses the filtered arrangement with the CM jumper installed.

Therefore, replacement engineering should include a review of grounding, EMC, motor cabling, and common-mode behavior.

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20. 20G1ABD740JN0NNNNN

The JN0 model is the no-HIM version of the same 740 A drive class.

It is appropriate for systems where the drive is controlled primarily from:

• PLC.
• HMI.
• SCADA.
• Industrial network.
• Centralized automation system.

It provides the same general 740 A power capacity without the local HIM arrangement.

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21. 20G1ABD740JN4NNNNN

The JN4 version uses a door-mounted enhanced LCD full-numeric HIM.

It is useful when operators and maintenance personnel need access to the drive from the front of the electrical cabinet.

It retains the same basic 740 A electrical capacity.

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22. 20G1ABD710JN2NNNNN

The 710 A JN2 model provides slightly less current capacity than the 740 A version.

Its approximate ratings are:

• 650 HP Light Duty.
• 600 HP Normal Duty.
• 450 HP Heavy Duty.

It is a useful alternative when the motor current does not justify the 740 A rating.

It also uses the handheld/local HIM arrangement.

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23. 20G1ABD617JN2NNNNN

The 617 A JN2 model is a further reduction in current capacity.

Its approximate ratings are:

• 600 HP Light Duty.
• 500 HP Normal Duty.
• 400 HP Heavy Duty.

This model can be considered when the application requires a large PowerFlex 755 drive but does not require the full 710 or 740 A capacity.

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24. Five Popular Allen-Bradley Models

The following five models provide a broader comparison across the same brand’s AC-drive portfolio.

Model	Product Family	Voltage Class	Current / Capacity	Typical Application	HIM	Approx. Dimensions	Approx. Weight
25B-D030N114	PowerFlex 525	480 VAC class	30 A class	Pumps, fans, conveyors, general machinery	Local keypad	Compact	Low-weight compact class
25C-D030N114	PowerFlex 527	480 VAC class	30 A class	Machine automation	Compact interface	Compact	Low-weight compact class
20G1ABC302JN4NNNNN	PowerFlex 755	400 VAC class	302 A class	Large pumps and process machinery	Door-mounted HIM	Large-frame	Large-frame class
20G1ABC460JN4NNNNN	PowerFlex 755	400 VAC class	460 A class	Large industrial machinery	Door-mounted HIM	Large-frame	Large-frame class
20G1ABC650JN4NNNNN	PowerFlex 755	400 VAC class	650 A class	Large industrial motors	Door-mounted HIM	Frame 8 class	Approximately 600+ kg class

The PowerFlex 525 and PowerFlex 527 are substantially smaller products and are generally better suited to machine-level applications.

The PowerFlex 755 models are much closer to the requested product in terms of architecture and industrial application.

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25. Comparison of 740 A AN Configurations

Model	Current	LD	ND	HD	HIM	Main Difference
20G1ABD740AN0NNNNN	740 A	700 HP	650 HP	500 HP	None	Centralized control
20G1ABD740AN2NNNNN	740 A	700 HP	650 HP	500 HP	Handheld/local	Local maintenance and commissioning
20G1ABD740AN4NNNNN	740 A	700 HP	650 HP	500 HP	Door mounted	Cabinet-front operation

The AN2 version is often the most flexible choice when technicians need local access but a permanent door-mounted HIM is not necessary.

The AN0 is cleaner for centralized control architectures.

The AN4 is more convenient for operators who need a permanently accessible front-panel interface.

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26. Comparison of AN2 and JN2 Versions

Parameter	20G1ABD740AN2NNNNN	20G1ABD740JN2NNNNN
Series	PowerFlex 755	PowerFlex 755
Voltage	480 VAC	480 VAC
Phase	3 PH	3 PH
Current	740 A	740 A
Light Duty	700 HP	700 HP
Normal Duty	650 HP	650 HP
Heavy Duty	500 HP	500 HP
HIM	Handheld/local LCD	Handheld/local LCD
Input	AC with precharge	AC with precharge
DC Terminals	None	None
Cooling	Air cooled	Air cooled
Frame	Frame 8	Frame 8
MCC Depth	600 mm	600 mm
Dynamic Braking	None	None
EMC Filter	Yes	Yes
CM Jumper	Removed	Installed
Lifecycle	Discontinued	Replacement/current configuration

The two models are closely matched in application and power rating.

The CM-jumper configuration is the primary point that should be reviewed during replacement engineering.

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27. Typical Application Selection

Application	Required Characteristic	Suitability of 20G1ABD740AN2NNNNN
Large centrifugal pump	Variable torque / high power	Excellent
Large fan	Variable torque	Excellent
Industrial blower	High-power speed control	Excellent
Mining conveyor	High current / high inertia	Excellent
Bulk-material conveyor	Controlled acceleration	Excellent
Crusher	High torque / overload	Suitable with correct duty
Mixer	High starting torque	Suitable
Cement machinery	High-power industrial control	Excellent
Aggregate equipment	High current	Excellent
Water-treatment pump	Large motor	Excellent
Process machinery	Flexible speed control	Excellent
Large material-handling system	High power	Excellent

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28. Installation Considerations

The drive is a large Frame 8 industrial device.

The approximate dimensions of 2100 × 610 × 600 mm should be considered when designing the MCC or cabinet.

The approximate equipment weight of 544 kg also requires appropriate handling equipment.

The installation should provide sufficient:

• Floor support.
• Structural support.
• Lifting access.
• Front service space.
• Cable-entry space.
• Cooling airflow.
• Electrical clearance.
• Grounding.
• Network access.

The final cabinet design should always be based on the actual mechanical drawings for the selected configuration.

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29. Cooling and Ventilation

A 740 A drive can generate considerable heat.

The forced-air cooling system therefore plays an important role in reliable operation.

The installation should prevent hot exhaust air from being recirculated into the intake.

Particular attention should be given to environments with:

• High ambient temperatures.
• Dust.
• Cement particles.
• Metal dust.
• Mining dust.
• Chemical contamination.
• Restricted ventilation.

Routine maintenance should include checking cooling fans, airflow paths, cabinet temperature, and contamination.

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30. Maintenance Recommendations

Maintenance Area	Recommended Check
Cooling Fans	Check operation and unusual noise
Airflow	Verify unrestricted airflow
Cabinet	Inspect for dust and contamination
Power Connections	Inspect electrical condition
Grounding	Verify grounding integrity
Motor Cables	Check terminations and insulation
HIM	Check display and keypad
Network	Verify EtherNet/IP communication
Fault History	Review repeated faults
Parameters	Maintain configuration backup
Motor Current	Monitor operating current
Temperature	Monitor during heavy operation
Environment	Check ambient conditions

A current parameter backup is particularly valuable for large production drives.

If a replacement is required, a verified configuration backup can reduce commissioning time considerably.

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31. Engineering Selection Checklist

Selection Item	Requirement
Motor Voltage	Confirm 480 VAC-class compatibility
Motor Current	Verify against 740 A capacity
Motor Power	Compare with LD / ND / HD rating
Duty	Determine Light, Normal or Heavy Duty
Starting Torque	Confirm machine requirement
Acceleration	Check required acceleration time
Deceleration	Evaluate regenerative energy
Braking	Determine whether external braking is required
Input Power	Verify facility capacity
Protection	Confirm upstream protection
Grounding	Verify grounding method
EMC	Confirm filtering requirements
Motor Cable	Verify cable size and routing
Communication	Confirm EtherNet/IP architecture
HIM	Confirm local interface requirements
Cabinet	Allow Frame 8 dimensions
Weight	Plan for approximately 544 kg
Cooling	Confirm forced-air ventilation
Feedback	Determine encoder requirements
Safety	Determine required safety functions
Parameters	Back up existing configuration

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32. Product Advantages in Large Automation Systems

The AN2 configuration provides a useful balance between local and centralized control.

At the plant-control level, the drive can communicate with the automation system.

At the maintenance level, technicians can use the local HIM.

This means that the drive does not have to depend entirely on a remote HMI for commissioning and troubleshooting.

This is particularly valuable in large facilities where the drive may be located some distance from the main control room.

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33. Product Advantages for Maintenance

The local HIM can simplify troubleshooting.

A technician can check the drive directly for:

• Operating status.
• Fault codes.
• Alarm conditions.
• Current.
• Frequency.
• Speed.
• Parameters.
• Control status.

This can reduce the time required to identify problems.

It is especially useful during initial commissioning because motor parameters can be reviewed and adjusted locally.

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34. Product Advantages for Pumps and Fans

The high Light Duty rating makes the drive attractive for large variable-torque equipment.

A 700 HP Light Duty capacity provides substantial headroom for large pumps and fans.

The drive can regulate speed according to process requirements.

This can be useful for:

• Water flow.
• Pressure.
• Cooling.
• Ventilation.
• Airflow.
• Process circulation.

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35. Product Advantages for Conveyors

For large conveyors, controlled acceleration is one of the key benefits.

Sudden motor acceleration can create high mechanical stress.

The drive can provide a controlled speed ramp.

This can reduce stress on:

• Belts.
• Gearboxes.
• Couplings.
• Shafts.
• Bearings.

The drive can also be monitored through the plant automation system.

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36. Product Advantages for Mining

Mining applications frequently require large motors and centralized automation.

The 740 A drive can provide the current capacity required by large machinery.

The local HIM provides maintenance access, while EtherNet/IP integration supports centralized monitoring.

This combination is useful for large mining conveyor, pump, fan, and processing systems.

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37. Product Lifecycle

The 20G1ABD740AN2NNNNN is a discontinued PowerFlex 755 configuration.

The discontinuation date is June 30, 2024.

The direct replacement is:

20G1ABD740JN2NNNNN

The replacement retains the same general:

• 740 A current class.
• 480 VAC three-phase input.
• 700 HP Light Duty capacity.
• 650 HP Normal Duty capacity.
• 500 HP Heavy Duty capacity.
• Frame 8 construction.
• 600 mm MCC-style depth.
• Handheld/local HIM concept.
• AC input with precharge.
• No DC input terminals.
• Air-cooled construction.

The primary configuration difference that should receive attention is the CM-jumper arrangement.

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38. Recommended Replacement Options

Requirement	Recommended Model
Direct replacement	20G1ABD740JN2NNNNN
Same power, no HIM	20G1ABD740JN0NNNNN
Same power, door-mounted HIM	20G1ABD740JN4NNNNN
Slightly lower current	20G1ABD710JN2NNNNN
Lower current again	20G1ABD617JN2NNNNN

The direct replacement should normally be evaluated first.

If the installation architecture is changing at the same time, the JN0 and JN4 versions may be more appropriate depending on operator-interface requirements.

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39. Overall Product Assessment

The 20G1ABD740AN2NNNNN is a large-frame, high-current industrial AC drive designed for demanding motor-control applications.

Its approximately 740 A output capacity makes it suitable for very large industrial motors.

The approximate ratings of 700 HP Light Duty, 650 HP Normal Duty, and 500 HP Heavy Duty provide flexibility for different mechanical load characteristics.

The drive is particularly well suited to large variable-speed machinery where reliable motor control, high current capacity, centralized automation, and local maintenance access are required.

The AN2 handheld/local HIM is one of the most useful features of this particular configuration.

It provides direct access to drive information without requiring a permanent door-mounted interface.

This makes the model well suited to maintenance-intensive installations.

The drive can also be integrated into a broader automation system through its industrial communication capabilities.

Typical applications include:

• Large conveyors.
• Mining conveyors.
• Crushers.
• Large pumps.
• Large fans.
• Industrial blowers.
• Cement equipment.
• Aggregate machinery.
• Water-treatment systems.
• Wastewater systems.
• Process machinery.
• Material-handling equipment.
• Large industrial production machines.

The approximate physical dimensions are 2100 × 610 × 600 mm, while the approximate equipment weight is 544 kg.

These values are important for cabinet design, transportation, lifting, installation, and maintenance planning.

The 20G1ABD740AN2NNNNN has been discontinued, with 20G1ABD740JN2NNNNN serving as the direct replacement.

When replacing the older drive, the new catalog number should be checked carefully for EMC, grounding, CM-jumper, motor-cable, communication, HIM, braking, and parameter requirements.

Overall, the 20G1ABD740AN2NNNNN is best described as a high-power PowerFlex 755 Frame 8 AC drive for large industrial motors, combining high current capacity, flexible motor control, local commissioning capability, industrial network integration, and a robust large-frame construction.

For applications requiring the same 740 A power level and local maintenance interface, 20G1ABD740JN2NNNNN is the most direct modern replacement to consider.