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- Allen Bradley
- 20BW052A0ANNANC0
- PowerFlex 700 AC Drive
- USA
- 689.6 × 308.9 × 275.4 mm
- 37.19 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Allen Bradley 20BW052A0ANNANC0 is a PowerFlex 700 adjustable-frequency AC drive rated at 52 A, with a normal-duty power rating of 45 kW and a heavy-duty rating of 37.5 kW. This configuration uses a 932 V DC input with precharge and vector control with 24 V DC I/O. It is intended for industrial motor-control systems that require adjustable motor operation and integration into an established machine-control architecture.
The PowerFlex 700 family supports industrial applications where motor speed, acceleration, deceleration, and stopping behavior need to be managed electronically. Unlike a direct-on-line starter, an adjustable-frequency drive controls the electrical output supplied to the motor, allowing its operating speed to be changed according to process requirements.
The catalog configuration of the 20BW052A0ANNANC0 includes conformal coating, an EMC filter with common-mode choke, and an IP20 / NEMA Type 1 enclosure arrangement. It is supplied without a Human Interface Module, internal brake IGBT, drive-mounted brake resistor, internal communication module, or feedback option. These configuration details are important when integrating the drive into a control panel or replacing an existing unit.
The drive uses vector control with 24 V DC I/O. Its control terminals can be incorporated into an external control arrangement for start and stop commands, operating interlocks, and status handling. The exact control strategy depends on the machine’s wiring, parameter configuration, and supervisory control equipment.
For example, a material-handling installation may use an adjustable-frequency drive to control the operation of a motor-driven conveyor. The drive can manage acceleration and deceleration while an external controller coordinates the conveyor with sensors, upstream equipment, and downstream machinery. In a pumping or ventilation application, adjustable motor operation can also help match equipment output to changing process demand.
The 20BW052A0ANNANC0 is a specialized PowerFlex 700 configuration rather than a generic low-voltage drive. Its 932 V DC input specification and precharge arrangement distinguish its power architecture from conventional AC-input versions. Correct integration therefore depends on the designated DC supply arrangement, compatible motor ratings, and the drive’s configured control method.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | 20BW052A0ANNANC0 |
| Product Family | PowerFlex 700 |
| Product Type | Adjustable-Frequency AC Drive |
| Drive Frame | Frame 5 |
| Rated Output Current | 52 A |
| Normal-Duty Power Rating | 45 kW |
| Heavy-Duty Power Rating | 37.5 kW |
| Input Voltage | 932 V DC |
| DC Input Arrangement | DC input with precharge |
| Control Method | Vector control |
| Control I/O | 24 V DC |
| Number of Analog Inputs | 2 |
| Number of Analog Outputs | 2 |
| Number of Digital Inputs | 6 |
| Number of Digital Outputs | 3 |
| Human Interface Module | Not included; blank plate fitted |
| Internal Brake IGBT | Not included |
| Drive-Mounted Brake Resistor | Not included |
| Internal Communication Module | Not included |
| Feedback Option | Not included |
| EMC Filter | With common-mode choke |
| Conformal Coating | Included |
| Enclosure Rating | IP20 / NEMA / UL Type 1 |
| Dimensions | 689.6 × 308.9 × 275.4 mm |
| Weight | 37.19 kg |
Product Features
- 52 A rated output current: Supports compatible motor loads within the drive’s specified electrical and thermal limits.
- 45 kW normal-duty rating: Provides the stated power rating for normal-duty applications.
- 37.5 kW heavy-duty rating: Establishes the lower power rating applicable to heavy-duty operation.
- 932 V DC input: Uses a DC input supply arrangement rather than a conventional low-voltage AC input configuration.
- DC precharge: Incorporates the specified precharge arrangement for the drive’s DC power section.
- Vector control: Supports regulated motor operation using the configured vector-control method.
- 24 V DC control I/O: Allows integration with compatible industrial control circuits.
- Built-in analog and digital I/O: Provides two analog inputs, two analog outputs, six digital inputs, and three digital outputs.
- Conformal coating: Provides an additional protective coating on the specified electronic assemblies.
- EMC filtering: Includes an EMC filter with a common-mode choke.
- No onboard HIM: Uses a blank front plate in place of a Human Interface Module.
- No internal braking hardware: Does not include an internal brake IGBT or drive-mounted brake resistor.
Working Principle
The 20BW052A0ANNANC0 regulates motor operation by controlling the electrical output delivered through its power-conversion section. Its vector-control method manages the motor according to the configured operating parameters and command signals.
DC Supply with Precharge → PowerFlex 700 Drive → Controlled Electrical Output → AC Motor → Driven Equipment
The DC supply provides energy to the drive’s power section. The precharge arrangement manages the initial charging of the DC-link capacitors as part of the drive’s power-up sequence. Once the drive has completed its required startup checks, it can operate according to its configured control and enable conditions.
The drive’s power electronics generate a controlled output for the connected AC motor. Under vector control, the drive regulates motor operation according to its control parameters and available feedback or estimation functions. This enables controlled acceleration, deceleration, and speed adjustment within the motor and drive operating limits.
The drive includes analog and digital I/O for connection to external control equipment. For example, a PLC may issue a run command, provide a process reference, and monitor selected operating signals. The actual behavior of these signals depends on the terminal assignments and parameter settings established during commissioning.
This catalog configuration does not include a feedback option. The intended control arrangement must therefore account for the supplied configuration rather than assuming that an additional encoder interface is installed. Similarly, because no internal brake IGBT or drive-mounted brake resistor is included, applications requiring dynamic braking need an appropriate braking arrangement outside the supplied configuration.
The drive’s performance depends on the DC supply, connected motor, load characteristics, parameter settings, and thermal conditions. Correct setup is particularly important where the motor operates under changing torque demand or requires frequent acceleration and deceleration.
Role in a PowerFlex 700 Motor Control Architecture
The 20BW052A0ANNANC0 occupies the motor-control position between the designated DC power source and the connected AC motor. It manages motor operation, while external control equipment coordinates the process and the surrounding electrical system provides the required protection and isolation.
DC Power Source → Precharge and Drive Power Section → PowerFlex 700 Control → AC Motor → Mechanical Load
| System Component | Function |
|---|---|
| Allen-Bradley 20BW052A0ANNANC0 | Controls the connected motor using the configured vector-control arrangement |
| DC Power Source | Supplies the specified DC input to the drive |
| Precharge Arrangement | Manages initial charging of the drive’s DC-link circuit |
| External Control System | Issues operating commands and coordinates machine sequences |
| 24 V DC Control Circuit | Provides the required control signals to the drive I/O |
| AC Motor | Converts electrical energy into mechanical output |
| Mechanical Transmission | Transfers motor torque to the driven equipment |
| Branch-Circuit Protection | Provides the required electrical protection according to the system design |
| Emergency Stop and Interlock Circuit | Coordinates shutdown and machine safety functions through the established safety architecture |
| HMI or Supervisory System | Displays available operating information and coordinates process commands |
Industrial Applications
| Application | Typical Use |
|---|---|
| Material Handling Systems | Controlling compatible conveyor motors and coordinating acceleration with production sequences |
| Industrial Conveyors | Adjusting motor operation according to line requirements |
| Pumping Equipment | Regulating compatible motor-driven pumps where the supply and motor ratings are suitable |
| Ventilation Systems | Controlling compatible fans within the drive’s operating limits |
| Manufacturing Machinery | Coordinating motor operation with PLC-based machine sequences |
| Processing Equipment | Adjusting motor speed to meet changing process requirements |
| Packaging Machinery | Managing compatible motor-driven mechanisms |
| Machine Automation | Integrating adjustable-frequency motor control into an existing control panel |
| Industrial Utility Systems | Operating compatible motor loads with defined control requirements |
| Drive Replacement Projects | Replacing a matching PowerFlex 700 configuration in an established installation |
Installation and Maintenance
- Confirm the drive configuration: Verify that 20BW052A0ANNANC0 matches the required PowerFlex 700 application, including its DC input arrangement and output-current rating.
- Check the DC power source: Confirm that the supply architecture is compatible with the specified 932 V DC input and precharge arrangement.
- Establish electrical isolation: Follow the applicable lockout/tagout procedure and verify that stored energy has been discharged before working on the drive.
- Review motor requirements: Compare the motor nameplate current, voltage, power, and duty requirements with the drive’s normal-duty or heavy-duty rating.
- Inspect the installation environment: Check the enclosure, ventilation, ambient conditions, and mounting arrangement against the drive’s installation requirements.
- Verify branch-circuit protection: Select and coordinate protective devices according to the drive installation and applicable electrical requirements.
- Connect the motor circuit: Follow the correct power-terminal assignments and inspect the motor cable connections before energizing the system.
- Wire the control I/O: Check the 24 V DC control circuit, analog signals, digital commands, and external interlocks against the intended control scheme.
- Configure motor-control parameters: Enter the appropriate motor data and control settings for the connected motor and driven load.
- Check braking requirements: Because this configuration does not include an internal brake IGBT or drive-mounted brake resistor, establish a suitable external arrangement if the application requires dynamic braking.
- Perform controlled commissioning: Verify the startup sequence, direction of rotation, acceleration, deceleration, current behavior, and response to operating commands.
- Document operating results: Record the drive reference, parameter settings, control wiring, protection arrangement, and commissioning observations for future maintenance.
Related Components
| Component | Function |
|---|---|
| Allen-Bradley 20BW052A0ANNANC0 | PowerFlex 700 adjustable-frequency drive with 932 V DC input |
| Compatible DC Power Source | Supplies the required DC input to the drive |
| AC Motor | Converts controlled electrical power into mechanical output |
| PLC or Industrial Controller | Coordinates motor commands and machine sequences |
| 24 V DC Control Supply | Supplies the external control circuit |
| Analog Signal Devices | Provide compatible process references or command signals |
| Branch-Circuit Protective Devices | Provide the specified protection for the drive installation |
| External Braking Equipment, Where Required | Supports braking applications not covered by the supplied internal configuration |
| Motor Cable | Connects the drive output to the motor |
| HMI or Supervisory Interface | Supports operator commands and monitoring through the configured control system |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Allen-Bradley 20BW052A0ANNANC0 | PowerFlex 700 AC Drive, 52 A | 45 kW normal-duty and 37.5 kW heavy-duty applications using the specified DC input arrangement |
| Allen-Bradley 20BB052A0ANNANC0 | PowerFlex 700 AC Drive | Related current-rating configuration; power-input arrangement must match the intended installation |
| Allen-Bradley PowerFlex 700 | Adjustable-Frequency AC Drive Family | Industrial motor-speed and torque control |
| Allen-Bradley PowerFlex 700 Reference Manual | Drive Configuration and Operation Documentation | Parameter setup, control methods, diagnostics, and drive operation |
| Compatible AC Motors | Industrial AC Motors | Motor-driven machinery within the selected drive’s operating limits |
Key Advantages
- Provides 52 A rated output current for compatible motor applications.
- Supports 45 kW normal-duty and 37.5 kW heavy-duty ratings.
- Uses vector control for regulated motor operation.
- Includes 24 V DC control I/O and onboard analog and digital signals.
- Incorporates the specified DC precharge and EMC filtering arrangement.
- Supports integration into established PowerFlex 700 control architectures.
Technical FAQs
What is the difference between the normal-duty and heavy-duty ratings?
The drive is rated at 45 kW for normal-duty operation and 37.5 kW for heavy-duty operation. The appropriate rating depends on the motor’s load profile, torque demand, and operating cycle.
Why does this model specify a 932 V DC input?
This catalog configuration uses a DC input with precharge rather than the conventional AC input arrangement found on many other PowerFlex 700 variants. The supply architecture must be compatible with the drive’s specified input requirements.
Can an encoder be assumed to be supported by the supplied configuration?
No feedback option is included in this configuration. The motor-control arrangement should be based on the supplied drive specification and its supported control functions rather than assuming an encoder-feedback option is installed.
What should be considered when the application requires dynamic braking?
This configuration does not include an internal brake IGBT or drive-mounted brake resistor. Applications requiring dynamic braking need an appropriate braking solution selected for the drive, motor, load inertia, and stopping requirements.