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20G1G3F565LNDNNNNN PowerFlex 755 AC Drive

1. Product Overview

The 20G1G3F565LNDNNNNN is a high-power industrial AC drive in the PowerFlex 755 series.

It is a 690 V AC, three-phase, air-cooled, low-harmonic drive designed for large industrial motors and demanding variable-speed applications. The configuration belongs to the floor-mounted PowerFlex 755T/755TL type of high-power drive architecture.

This model is particularly suited to applications where the motor power is substantial and where the electrical system requires controlled motor operation together with improved input-power quality.

The drive is positioned in the 565 A normal-duty current class. Within the same rating structure, it is associated with approximately 630 kW low-duty, 560 kW normal-duty, and 500 kW heavy-duty power levels, with the corresponding current ratings changing according to the selected duty classification.

This distinction is important when selecting the drive for a motor.

The number 565 in the catalog number should not simply be interpreted as the motor’s maximum horsepower or kilowatt rating. The actual usable motor rating depends on whether the application is treated as light duty, normal duty, or heavy duty and on the motor’s rated current and overload requirements.

The model is an air-cooled packaged drive and is intended for floor-mounted industrial installation. The associated PowerFlex 755TL configuration is identified as a low-harmonic, Type 1/IP21, 690 V, three-phase drive.

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2. Basic Product Parameters

Parameter	Specification
Model	20G1G3F565LNDNNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Related Platform	PowerFlex 755T / PowerFlex 755TL
Product Type	High-power AC variable-frequency drive
Drive Configuration	Air-cooled packaged drive
Input Voltage	690 V AC
Input Phase	Three-phase
Normal-Duty Current	565 A
Low-Duty Current	Approximately 650 A
Heavy-Duty Current	Approximately 505 A
Low-Duty Power	Approximately 630 kW
Normal-Duty Power	Approximately 560 kW
Heavy-Duty Power	Approximately 500 kW
Input Technology	Active Front End / Low Harmonic
Cooling	Forced air
Mounting	Floor mounted
Enclosure Class	Type 1 / IP21 class
Drive Frame	Large high-power frame
Motor Control	Advanced AC motor control
Control Platform	TotalFORCE
Motor Type	Three-phase AC motors
Application Class	Heavy industrial
Typical Applications	Pumps, fans, compressors, conveyors, mills, crushers
Installation Location	Industrial electrical room / equipment room
Cabinet Construction	Floor-standing packaged cabinet
Approx. Dimensions	Approximately 2,000–2,300 H × 700–1,000 W × 800–1,100 D mm, configuration dependent
Approx. Weight	Approximately 600–850 kg planning class, configuration dependent
Product Status	Legacy / discontinued configuration
Main Function	High-power variable-speed motor control

The current and power values above should be interpreted according to the applicable duty classification. For this model family, the 565 A figure corresponds to the normal-duty rating, while the same drive family can have higher or lower permissible current depending on duty requirements.

The dimensions and weight are provided as preliminary engineering values for planning purposes. High-power packaged drives can vary considerably depending on the exact cabinet configuration, incoming disconnects, filtering equipment, reactors, cable arrangements, options, and factory-installed accessories.

For a foundation, lifting plan, transport arrangement, or control-room layout, the actual mechanical drawing and shipping information for the specific unit should be used.

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3. Product Series

The 20G1G3F565LNDNNNNN belongs to the PowerFlex 755 AC Drive series.

It is also associated with the high-power PowerFlex 755T / 755TL low-harmonic architecture.

This part of the PowerFlex family is intended for applications that require substantially more power and control capability than compact general-purpose variable-frequency drives.

The PowerFlex 755 platform is commonly used for large industrial motors where speed control, torque control, feedback, diagnostics, communications, and electrical power quality are all important.

The high-power 690 V configurations include multiple current classes, such as the 370 A, 415 A, 505 A, 565 A, 650 A, 735 A, 820 A, and 920 A classes. This makes it possible to select a drive according to the actual motor current and duty requirement rather than simply selecting a generic inverter by motor horsepower.

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4. Brand Information

Item	Description
Brand	Allen-Bradley
Product Family	PowerFlex
Product Series	PowerFlex 755
Related Series	PowerFlex 755T
Related Configuration	PowerFlex 755TL
Product Category	Industrial AC Drive
Main Function	Variable-speed AC motor control
Voltage Class	690 V AC
Current Class	565 A normal duty
Cooling	Air cooled
Installation	Floor mounted
Input Architecture	Low-harmonic AFE
Application Level	High-power industrial

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5. Understanding the Model Number

The catalog number 20G1G3F565LNDNNNNN contains configuration information rather than being merely a serial identification number.

The 20G portion identifies the PowerFlex 755 platform.

The following characters define the specific drive configuration.

The F voltage designation is associated with the 690 V AC class.

The 565 portion identifies the normal-duty current class.

The remaining characters define configuration details associated with the packaged drive, input arrangement, enclosure, and other factory-selected characteristics.

This is why two models that appear very similar can have different electrical characteristics.

For example, models with the same 565 A class can appear with different suffixes such as LNDNNNNN, MNANNNNN, or other option combinations. Related catalog listings also show multiple variants of the 565 A configuration.

For replacement work, the complete catalog number should therefore be matched instead of selecting a drive only by voltage and current.

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6. Electrical Specifications

Electrical Parameter	20G1G3F565LNDNNNNN
Input Voltage	690 V AC
Input Phase	Three-phase
Normal-Duty Current	565 A
Low-Duty Current	Approximately 650 A
Heavy-Duty Current	Approximately 505 A
Low-Duty Power	Approximately 630 kW
Normal-Duty Power	Approximately 560 kW
Heavy-Duty Power	Approximately 500 kW
Input Architecture	Active Front End
Harmonic Design	Low Harmonic
Output	Variable-frequency three-phase AC
Cooling	Forced air
Motor Control	Advanced AC motor control
Speed Control	Variable speed
Torque Control	Supported
Feedback	Configuration dependent
Encoder Feedback	Available with appropriate configuration
Communication	Industrial communication options
Fault Monitoring	Integrated
Diagnostic Functions	Integrated
Installation	Floor mounted
Enclosure	Type 1 / IP21 class

The rating structure for this model is particularly useful because it shows how one drive can be applied to different types of loads.

For a relatively light-duty application, the drive can have a higher permissible power rating.

For a normal industrial application, the rating is approximately 560 kW and 565 A.

For a heavy-duty application requiring greater overload capability, the applicable rating is approximately 500 kW and 505 A.

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7. Duty Classification

Duty classification is extremely important when selecting a high-power drive.

Low Duty

The low-duty rating is approximately 630 kW / 650 A.

This rating is intended for applications where the motor load and overload requirements are comparatively moderate.

Typical examples may include large centrifugal pumps and fans where the load characteristics are favorable.

Normal Duty

The normal-duty rating is approximately 560 kW / 565 A.

This is the primary rating associated with the model’s 565 A designation.

It represents a broad range of industrial applications where the motor experiences normal industrial loading.

Heavy Duty

The heavy-duty rating is approximately 500 kW / 505 A.

Heavy-duty applications generally require greater overload capability or more demanding torque characteristics.

Examples can include conveyors, crushers, mills, mixers, and other equipment where torque demand can change significantly.

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8. Product Introduction

The 20G1G3F565LNDNNNNN is designed to control large three-phase AC motors in industrial systems.

Rather than operating a motor at one fixed speed, the drive controls the motor’s operating frequency and voltage.

This makes it possible to adjust machine speed according to process requirements.

A large pump can operate at reduced speed when the required flow is lower.

A fan can adjust its speed according to ventilation demand.

A conveyor can accelerate smoothly rather than starting abruptly.

A compressor can change operating speed according to process demand.

A large mill can use controlled torque and speed to respond to changing material conditions.

The drive therefore becomes part of the machine-control system rather than functioning only as an electronic motor starter.

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9. High-Power Motor Control

With a normal-duty rating of approximately 565 A, this model is designed for large industrial motors.

At this power level, motor starting and stopping can have a major impact on both the electrical and mechanical systems.

A large motor can draw a substantial starting current when connected directly to the supply.

The mechanical system can also experience a significant torque shock.

Using a variable-frequency drive allows acceleration to be controlled according to a programmed ramp.

The motor can gradually increase speed instead of immediately reaching full operating speed.

This is particularly useful for equipment with high rotational inertia.

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10. Low-Harmonic Input Architecture

The low-harmonic design is one of the major features of this drive configuration.

Large conventional drives can introduce harmonic currents into the incoming electrical system.

At small power levels, the impact may be manageable.

At several hundred kilowatts, however, the electrical effect can become much more important.

The active-front-end arrangement provides active control of the incoming current waveform.

This can help reduce the harmonic impact of the drive on the plant electrical network.

It is particularly useful in large industrial facilities where multiple high-power drives operate from a common power-distribution system.

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11. Application — Large Pumps

Large pumping systems are one of the most natural applications for this drive.

The motor does not necessarily need to run at full speed at all times.

The drive can adjust the pump speed according to actual process demand.

Applications include:

• Water treatment.
• Wastewater systems.
• Cooling-water circulation.
• Industrial process water.
• Large pumping stations.
• Irrigation systems.
• Chemical-process pumps.
• Industrial cooling systems.
• Mining-water systems.
• Power-generation auxiliary pumps.

The ability to control acceleration is also useful for large pumps because sudden starting can place mechanical stress on shafts, couplings, valves, and pipe systems.

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12. Application — Large Fans

Large fans and blowers can require hundreds of kilowatts of motor power.

The drive can regulate fan speed according to actual airflow requirements.

Typical applications include:

• Furnace ventilation.
• Industrial exhaust systems.
• Cement-process fans.
• Mining ventilation.
• Steel-mill ventilation.
• Dust-collection systems.
• Combustion-air systems.
• Cooling systems.
• Large HVAC installations.

Variable-speed operation can provide much more flexibility than running the fan continuously at one fixed speed.

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13. Application — Heavy Conveyors

Large conveyors can have very high mechanical inertia.

A sudden start can place a substantial load on belts, gearboxes, shafts, bearings, couplings, and drive pulleys.

The drive can provide controlled acceleration.

This allows the conveyor to gradually reach its operating speed.

The same principle can be applied to controlled stopping.

Large conveyor systems in mining, cement, ports, bulk-material handling, and industrial manufacturing can benefit from this type of control.

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14. Application — Mining Equipment

Mining machinery often requires large electric motors.

Applications can include:

• Long belt conveyors.
• Crushers.
• Grinding mills.
• Large ventilation fans.
• Dewatering pumps.
• Material feeders.
• Processing equipment.
• Bulk-material handling systems.

Mining loads can change significantly during operation.

The high-current capability of this drive makes it suitable for large machines where torque demand can be substantial.

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15. Application — Crushers

Crushers can place demanding loads on motors.

The material entering the machine may vary in size and hardness.

This can cause changes in motor torque.

Advanced motor control can help manage current and torque during operation.

The heavy-duty rating of the drive is particularly relevant when the application requires significant overload capability.

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16. Application — Grinding Mills

Large grinding mills can use very high-power motors.

The drive can provide controlled acceleration and variable-speed operation.

This can be useful during:

• Startup.
• Production.
• Process changes.
• Maintenance.
• Controlled shutdown.

For large mills, the motor, drive, gearbox, mechanical coupling, and process system must be designed together.

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17. Application — Compressors

Large compressors can benefit from variable-speed operation.

The drive can adjust motor speed according to process requirements.

Typical applications include:

• Industrial air compressors.
• Process-gas compressors.
• Large ventilation compressors.
• Refrigeration-related machinery.
• Chemical-process equipment.

The correct control strategy depends on compressor type and operating envelope.

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18. Application — Cement Plants

Cement production uses many high-power motors.

The 20G1G3F565LNDNNNNN class of drive can be applied to equipment such as:

• Grinding mills.
• Large process fans.
• Raw-material conveyors.
• Crushers.
• Bucket elevators.
• Material-handling systems.
• Process pumps.
• Exhaust fans.

Cement plants can have substantial electrical loads, making low-harmonic input performance especially useful when many large drives operate on the same distribution system.

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19. Application — Steel and Metal Processing

Steel and metal plants also use high-power motor systems.

Typical applications include:

• Cooling-water pumps.
• Large fans.
• Conveyors.
• Material-handling equipment.
• Process lines.
• Auxiliary rolling equipment.
• Exhaust systems.
• Cooling systems.

The ability to coordinate motor speed and torque with the rest of the process can be important in these applications.

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20. Application — Chemical and Process Industries

Process plants often use large pumps, fans, compressors, mixers, and other rotating machinery.

A variable-frequency drive provides flexibility when the process load changes.

It can also provide controlled acceleration and stopping.

In large process plants, the low-harmonic input arrangement can be useful because electrical power quality can affect a large number of other pieces of equipment connected to the same electrical network.

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21. Main Advantages

21.1 High-Power Capability

The approximately 565 A normal-duty rating places this drive in the high-power industrial category.

It is intended for motors that are far beyond the typical size range of compact machine drives.

The approximately 560 kW normal-duty rating provides substantial capacity for large industrial machinery.

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21.2 690 V Operation

The 690 V configuration is suitable for large industrial motors.

At high power, a higher motor voltage can reduce the current required for a given power level compared with lower-voltage systems.

This can influence cable selection, switchgear design, transformer configuration, and overall plant electrical architecture.

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21.3 Low-Harmonic Input

The active-front-end architecture is valuable in installations where input-current quality is important.

This can be particularly relevant when a plant contains multiple large variable-frequency drives.

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21.4 Smooth Starting

The drive can gradually accelerate the motor.

This can reduce mechanical shock during startup.

It can also help reduce the electrical stress associated with direct-on-line starting.

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21.5 Adjustable Speed

The motor does not have to operate continuously at one fixed speed.

Speed can be adjusted according to the process requirement.

This is especially useful for pumps, fans, conveyors, and other variable-load machinery.

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21.6 Torque Control

Large industrial machines often need controlled torque rather than simple frequency adjustment.

This is useful for conveyors, mills, crushers, mixers, and material-handling systems.

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21.7 Industrial Automation Integration

The drive can operate as part of a larger automation system.

It can exchange operating information with industrial controllers and other automation equipment through appropriate communication hardware.

Typical information includes:

• Speed reference.
• Actual speed.
• Motor current.
• Torque.
• Drive status.
• Fault information.
• Alarm information.
• Operating mode.
• Diagnostic data.

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21.8 Large-Plant Compatibility

The floor-mounted cabinet configuration is appropriate for centralized electrical rooms.

This makes the drive suitable for large industrial plants rather than small standalone machines.

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22. Mechanical Specifications

Mechanical Parameter	Specification
Model	20G1G3F565LNDNNNNN
Installation	Floor mounted
Cabinet Type	Floor-standing packaged cabinet
Cooling	Forced air
Enclosure	Type 1 / IP21 class
Frame Class	Large high-power frame
Approx. Height	2,000–2,300 mm
Approx. Width	700–1,000 mm
Approx. Depth	800–1,100 mm
Approx. Weight	600–850 kg planning range
Cable Entry	Configuration dependent
Maintenance Access	Front/service access
Ventilation	Required
Floor Requirement	Suitable industrial foundation
Installation Area	Electrical room / equipment room
Environmental Protection	Industrial enclosure

The exact dimensions and weight can vary substantially between packaged configurations.

The model is listed as an air-cooled packaged drive, and the associated high-power 690 V low-harmonic configurations use floor-mounted Type 1/IP21-class construction.

The weight given above should be treated as a planning range, not a certified shipping value.

For a crane, forklift, lifting beam, transport vehicle, or foundation calculation, the actual configured unit’s shipping weight should be used.

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23. Cooling System

The drive uses forced-air cooling.

At several hundred kilowatts of motor power, heat dissipation is a major engineering consideration.

The electrical room therefore needs an appropriate ventilation or air-conditioning system.

The cooling air path should remain unobstructed.

Dust accumulation can reduce heat-transfer performance and can shorten the service life of cooling components.

Cooling fans should be included in the preventive-maintenance program.

Abnormal fan noise, high internal temperature, or repeated thermal alarms should be investigated promptly.

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24. Installation Considerations

The installation of a high-power 690 V drive requires considerably more planning than the installation of a small panel-mounted inverter.

The following items should be considered:

• Incoming power supply.
• Transformer capacity.
• Short-circuit rating.
• Grounding system.
• Motor cable size.
• Motor cable length.
• Cable routing.
• EMC requirements.
• Harmonic requirements.
• Cabinet ventilation.
• Ambient temperature.
• Maintenance clearance.
• Floor loading.
• Lifting requirements.
• Motor insulation.
• Braking requirements.
• Regenerative energy.
• Control-network architecture.

The electrical installation should be designed as a complete system.

The drive, motor, transformer, cables, protective devices, grounding, and control system should not be selected independently.

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25. Maintenance

Preventive maintenance is important for a drive of this size.

The cooling system should be inspected regularly.

Air passages should remain clean.

Electrical connections should be checked according to the applicable maintenance procedure.

The cabinet should be inspected for:

• Dust.
• Loose connections.
• Abnormal temperature.
• Fan problems.
• Unusual noise.
• Component deterioration.
• Fault history.
• Alarm history.

For a legacy drive, spare-parts planning is especially important.

A plant should maintain records of the complete catalog number and configuration.

Where the drive is used on a critical production line, maintaining suitable replacement hardware can reduce downtime during an unexpected failure.

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26. Five Related Models in the Same Series

The following models are closely related to the same high-power 690 V PowerFlex 755 family.

Model	Voltage	Low-Duty Rating	Normal-Duty Rating	Heavy-Duty Rating	Cooling	Configuration
20G1G3F415LNDNNNNN	690 V	450 kW / 460 A	400 kW / 415 A	355 kW / 370 A	Air cooled	Low harmonic
20G1G3F505LNDNNNNN	690 V	560 kW / 565 A	500 kW / 505 A	400 kW / 415 A	Air cooled	Low harmonic
20G1G3F565LNDNNNNN	690 V	630 kW / 650 A	560 kW / 565 A	500 kW / 505 A	Air cooled	Low harmonic
20G1G3F650LNDNNNNN	690 V	710 kW / 735 A	630 kW / 650 A	560 kW / 565 A	Air cooled	Low harmonic
20G1G3F735LNDNNNNN	690 V	800 kW / 820 A	710 kW / 735 A	630 kW / 650 A	Air cooled	Low harmonic

These ratings follow the same general PowerFlex 755TL high-power rating structure.

The models are particularly useful for comparing motor requirements around the 400–800 kW range.

For example, a motor operating near the 500 kW level may fall into different drive categories depending on whether the application is normal duty or heavy duty.

This is why the motor’s actual rated current and load profile are more important than the motor’s nominal kilowatt rating alone.

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27. Comparison of Related Models

Parameter	20G1G3F415LNDNNNNN	20G1G3F505LNDNNNNN	20G1G3F565LNDNNNNN	20G1G3F650LNDNNNNN	20G1G3F735LNDNNNNN
Voltage	690 V	690 V	690 V	690 V	690 V
Phase	3 Phase	3 Phase	3 Phase	3 Phase	3 Phase
Normal-Duty Current	415 A	505 A	565 A	650 A	735 A
Normal-Duty Power	400 kW	500 kW	560 kW	630 kW	710 kW
Heavy-Duty Current	370 A	415 A	505 A	565 A	650 A
Heavy-Duty Power	355 kW	400 kW	500 kW	560 kW	630 kW
Low-Duty Current	460 A	565 A	650 A	735 A	820 A
Low-Duty Power	450 kW	560 kW	630 kW	710 kW	800 kW
Cooling	Air cooled	Air cooled	Air cooled	Air cooled	Air cooled
Input	Low Harmonic AFE	Low Harmonic AFE	Low Harmonic AFE	Low Harmonic AFE	Low Harmonic AFE
Mounting	Floor	Floor	Floor	Floor	Floor
Enclosure	Type 1/IP21	Type 1/IP21	Type 1/IP21	Type 1/IP21	Type 1/IP21
Approx. Height	2,000–2,200 mm	2,000–2,300 mm	2,000–2,300 mm	2,000–2,400 mm	2,000–2,400 mm
Approx. Weight	500–750 kg	550–800 kg	600–850 kg	650–900 kg	700–950 kg

The mechanical figures in this table are planning-level estimates. The electrical rating structure is the more important comparison point; exact enclosure dimensions and weight depend on the packaged configuration.

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28. Five Same-Brand Popular Models

The following models represent different areas of the same brand’s industrial drive portfolio.

Model	Product Series	Voltage Class	Approx. Current Class	Product Category	Typical Application
20G1G3F505LNDNNNNN	PowerFlex 755	690 V	505 A ND	High-power AC drive	Pumps, fans, conveyors, mills
20G1G3F650LNDNNNNN	PowerFlex 755	690 V	650 A ND	High-power AC drive	Large process machinery
20F11NC011JA0NNNNN	PowerFlex 753	480 V class	11 A class	Industrial AC drive	Pumps, fans, conveyors
20F11NC034JA0NNNNN	PowerFlex 753	480 V class	34 A class	Industrial AC drive	General industrial machinery
25B-D6P0N104	PowerFlex 525	480 V class	6 A class	Compact AC drive	Machine automation and small motors

These models cover very different application ranges.

The PowerFlex 525 is intended for comparatively compact machines and lower-power motors.

The PowerFlex 753 is designed for broader industrial motor-control applications.

The PowerFlex 755 family is intended for higher-performance and higher-power applications where advanced control, configuration flexibility, and system integration are important.

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29. Popular Model Comparison

Parameter	20G1G3F565LNDNNNNN	20G1G3F505LNDNNNNN	20G1G3F650LNDNNNNN	20F11NC011JA0NNNNN	25B-D6P0N104
Series	PowerFlex 755	PowerFlex 755	PowerFlex 755	PowerFlex 753	PowerFlex 525
Voltage Class	690 V	690 V	690 V	480 V class	480 V class
Current Class	565 A ND	505 A ND	650 A ND	11 A class	6 A class
Power Level	Very high	Very high	Extremely high	Medium	Low
Cooling	Air cooled	Air cooled	Air cooled	Air cooled	Air cooled
Mounting	Floor	Floor	Floor	Panel/cabinet	Panel/wall
Input Architecture	Low Harmonic AFE	Low Harmonic AFE	Low Harmonic AFE	Conventional industrial configuration	Compact drive architecture
Typical Application	Large industrial machinery	Large industrial machinery	Very large machinery	Industrial machines	Compact machinery
Approx. Dimensions	Large cabinet	Large cabinet	Large cabinet	Smaller cabinet	Compact
Approx. Weight	600–850 kg class	550–800 kg class	650–900 kg class	Configuration dependent	Compact-drive class

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30. Advantages for Heavy Industrial Applications

The 20G1G3F565LNDNNNNN offers several characteristics that are particularly useful in heavy industrial environments.

The first is its large current capacity.

The second is the 690 V operating class.

The third is the low-harmonic input architecture.

The fourth is the advanced motor-control capability.

The fifth is its suitability for integration into large industrial automation systems.

Together, these characteristics make it suitable for large machines where a compact general-purpose inverter would not provide sufficient power or control capability.

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31. Motor Selection

When using this drive with a motor, the motor nameplate should be checked carefully.

The following information is particularly important:

Motor Parameter	Required Check
Motor Voltage	Confirm compatibility with 690 V drive output
Motor Current	Must fit within applicable drive current rating
Motor Power	Compare against duty-specific drive rating
Motor Frequency	Normally 50 or 60 Hz according to system
Motor Speed	Confirm required speed range
Motor Type	Confirm supported AC motor type
Power Factor	Check actual motor nameplate
Efficiency	Useful for system sizing
Overload Requirement	Important for heavy-duty applications
Starting Torque	Important for conveyors and crushers
Load Profile	Constant torque or variable torque
Feedback	Encoder required or not
Cable Length	Important for output installation
Braking	Check whether dynamic braking is required
Regeneration	Determine whether load can drive the motor

A motor rated around 500–560 kW does not automatically mean that the 565 A drive should be selected.

The actual motor current and load profile must be considered.

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32. Constant-Torque Applications

The drive is well suited to demanding constant-torque applications when correctly sized.

Examples include:

• Conveyors.
• Crushers.
• Mixers.
• Extruders.
• Mills.
• Material-handling machinery.

These loads can require substantial torque across a wide speed range.

The heavy-duty current rating becomes particularly important for these applications.

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33. Variable-Torque Applications

The drive is also suitable for variable-torque loads.

Examples include:

• Centrifugal pumps.
• Centrifugal fans.
• Blowers.
• Cooling systems.

These applications can have significantly different power requirements at different operating speeds.

Variable-speed operation can therefore provide greater control over the process.

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34. Power Quality Considerations

Large drives can have a major influence on the plant electrical network.

For this reason, power-quality requirements should be evaluated before installation.

Important considerations include:

• Harmonic distortion.
• Transformer capacity.
• Generator compatibility.
• Power factor.
• Voltage distortion.
• Other large nonlinear loads.
• Multiple-drive operation.
• Sensitive instrumentation.
• Utility requirements.

The low-harmonic AFE configuration is particularly relevant where the plant has strict power-quality requirements.

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35. Automation Integration

The drive can be integrated into an industrial automation system.

A typical architecture may include:

PLC → Industrial Network → Drive → Motor → Machine

Additional devices can include:

• Operator terminals.
• Remote I/O.
• Encoders.
• Pressure sensors.
• Flow sensors.
• Temperature sensors.
• Process controllers.
• Supervisory systems.

The drive can provide operating information to the automation system, allowing motor control and process control to work together.

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36. Typical Diagnostic Information

Depending on the complete configuration, the drive can provide information such as:

• Output current.
• Output frequency.
• Motor speed.
• Torque.
• Drive status.
• Fault code.
• Alarm status.
• DC-bus condition.
• Thermal condition.
• Feedback status.
• Communication status.

This information can be useful for preventive maintenance and troubleshooting.

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37. Product Lifecycle Considerations

The 20G1G3F565LNDNNNNN is associated with the legacy PowerFlex 755 product generation.

For an existing installation, this does not automatically mean that the equipment needs to be replaced.

Many industrial drives remain in service for extended periods.

However, lifecycle planning becomes important as the equipment ages.

A plant should maintain:

• Complete catalog number.
• Firmware information.
• Option codes.
• Motor data.
• Control wiring documentation.
• Communication configuration.
• Parameter backups.
• Spare-parts records.
• Replacement-drive information.

This can significantly reduce downtime if a drive needs to be repaired or replaced.

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38. Recommended Spare-Parts Strategy

For a critical production system, the following items may be considered when developing a maintenance strategy:

• Cooling components.
• Control hardware.
• Communication modules.
• Feedback components.
• Operator-interface components.
• Fuses and protective devices.
• Interface components.
• Critical electronic assemblies.

The exact spare-parts list depends on the installed configuration.

The complete catalog number should always be recorded before purchasing replacement components.

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39. Mechanical Planning Table

Mechanical Item	20G1G3F565LNDNNNNN
Mounting	Floor mounted
Cabinet Style	Large industrial cabinet
Cooling	Forced air
Approx. Height	2,000–2,300 mm
Approx. Width	700–1,000 mm
Approx. Depth	800–1,100 mm
Approx. Weight	600–850 kg
Service Access	Front/service access
Ventilation	Required
Floor Loading	Must support large cabinet mass
Cable Space	Requires engineering allowance
Environment	Indoor industrial electrical area
Enclosure Class	Type 1 / IP21 class
Installation Planning	Electrical + mechanical coordination required

The approximate dimensions and weight are intended to give engineers a practical starting point for space planning.

They should not be used as final fabrication dimensions.

The actual enclosure can be larger or heavier when additional cabinet equipment is included.

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40. Overall Specification Summary

Specification	20G1G3F565LNDNNNNN
Brand	Allen-Bradley
Product Family	PowerFlex
Series	PowerFlex 755
Related Platform	PowerFlex 755T / 755TL
Product Type	High-power AC drive
Input Voltage	690 V AC
Phase	Three-phase
Normal-Duty Current	565 A
Normal-Duty Power	560 kW
Heavy-Duty Current	505 A
Heavy-Duty Power	500 kW
Low-Duty Current	650 A
Low-Duty Power	630 kW
Input Technology	AFE / Low Harmonic
Cooling	Forced air
Mounting	Floor mounted
Enclosure	Type 1 / IP21
Motor Control	Advanced AC motor control
Application	Heavy industrial
Typical Motors	Large 690 V AC motors
Typical Applications	Pumps, fans, conveyors, compressors, mills, crushers
Approx. Dimensions	2,000–2,300 H × 700–1,000 W × 800–1,100 D mm
Approx. Weight	600–850 kg
Product Status	Legacy / discontinued configuration

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41. Final Product Description

The 20G1G3F565LNDNNNNN is a high-power 690 V three-phase PowerFlex 755 AC drive designed for large industrial motor applications.

Its 565 A normal-duty rating and approximately 560 kW normal-duty power rating place it in the very high-power industrial-drive category. For other duty classifications, the same drive family can reach approximately 650 A / 630 kW in low duty or approximately 505 A / 500 kW in heavy duty.

The drive uses an air-cooled, floor-mounted, low-harmonic configuration intended for large industrial electrical systems.

Its AFE input architecture is particularly useful where electrical power quality is important.

This makes the drive suitable for large industrial plants containing multiple variable-speed motors.

Typical applications include large pumps, fans, conveyors, compressors, crushers, grinding mills, material-handling systems, mining equipment, cement machinery, steel-processing equipment, chemical-process machinery, and other large rotating machines.

For pump and fan applications, the drive provides variable-speed operation so that the motor can respond to actual process requirements.

For conveyors and heavy machinery, controlled acceleration can reduce mechanical shock.

For crushers and mills, the higher current and torque capability can help accommodate demanding load conditions.

For large industrial facilities, the low-harmonic input architecture can also help address electrical power-quality requirements.

The PowerFlex 755 platform provides advanced motor-control functionality and can be integrated into a larger automation system.

The drive can communicate operating conditions, speed, current, torque, alarms, faults, and other information to the wider control architecture when the appropriate hardware and communication configuration is installed.

The model is also significant from a maintenance perspective because it belongs to a legacy generation of high-power industrial drives.

For existing equipment, maintaining the exact catalog number and complete configuration is important.

For replacement planning, voltage, current, duty classification, motor characteristics, harmonic requirements, enclosure, cooling, feedback, communications, braking, dimensions, and weight should all be checked.

From a practical engineering standpoint, the key characteristics of the 20G1G3F565LNDNNNNN are its 690 V three-phase input class, 565 A normal-duty capacity, approximately 560 kW normal-duty power level, low-harmonic AFE architecture, forced-air cooling, floor-mounted cabinet construction, and suitability for large industrial AC motors.

It is therefore a drive intended for substantial industrial machinery rather than small or medium-sized standalone equipment.

For a new installation, the motor nameplate current and actual load profile should be used as the primary selection criteria.

For an existing installation, the complete catalog number should be preserved when ordering replacement equipment or planning a modernization.

The combination of high power, advanced control, low-harmonic operation, and industrial automation integration makes this model particularly suitable for large-scale motor-control systems where electrical performance and process control are both important.