Product Overview

The Allen Bradley 20BW098A0ANNANC0 is a PowerFlex 700 adjustable-frequency AC drive with a rated output current of 98 A. It uses a 932 V DC input with precharge and supports a normal-duty power rating of 90 HP and a heavy-duty rating of 75 HP. Its vector-control configuration with 24 V DC I/O is intended for industrial motor-control systems that require adjustable speed and coordinated operation with external control equipment. <Cite refs={[“turn554707search0”]}/>

The PowerFlex 700 family is used in applications where motor speed, acceleration, deceleration, and stopping behavior need to be controlled according to process requirements. By adjusting the electrical output supplied to a connected AC motor, the drive can regulate motor operation instead of relying on fixed-speed direct-on-line starting.

This model includes an EMC filter with a common-mode choke and conformal coating. Its catalog configuration does not include a Human Interface Module, internal brake IGBT, drive-mounted brake resistor, internal communication module, or feedback option. These details affect how the drive is commissioned and integrated into an existing control system.

The 24 V DC control I/O arrangement supports connection to compatible machine-control circuits. A PLC or other external controller can coordinate operating commands, process references, and available status signals. The precise control scheme depends on the assigned terminals and parameter configuration.

For example, an industrial conveyor may use the drive to regulate motor speed as production demand changes. The controller coordinates the conveyor with upstream and downstream equipment, while the drive manages motor acceleration and deceleration. Similar arrangements can be used for compatible pumps, fans, and other motor-driven machinery.

The 932 V DC input and precharge arrangement distinguish this model from conventional AC-input PowerFlex 700 configurations. Its power source, motor ratings, control wiring, and protective devices must be appropriate for this particular drive architecture.

Technical Specifications

Product Features

• 98 A rated output current: Supports compatible motor loads within the drive’s electrical and thermal limits.
• 90 HP normal-duty rating: Provides the specified power capacity for normal-duty applications.
• 75 HP heavy-duty rating: Establishes the applicable power rating for heavy-duty operation.
• 932 V DC input: Uses a DC power architecture with precharge.
• Vector control: Regulates motor operation according to the configured control parameters.
• 24 V DC control I/O: Integrates 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.
• EMC filtering: Includes an EMC filter with a common-mode choke.
• Conformal coating: Provides the specified coating on electronic assemblies.
• Blank front plate: The catalog configuration does not include a Human Interface Module.
• External braking arrangement: The drive does not include an internal brake IGBT or drive-mounted brake resistor.
• External control integration: Supports coordination with PLC-based machine-control systems through its configured I/O.

Working Principle

The 20BW098A0ANNANC0 controls the operation of a connected AC motor by regulating the electrical output delivered through its power-conversion section. Its vector-control method manages motor operation according to the configured commands and drive parameters.

932 V DC Supply → Precharge Circuit → PowerFlex 700 Drive → AC Motor → Mechanical Load

The DC source supplies energy to the drive’s power section. During startup, the precharge arrangement manages the initial charging of the DC-link capacitors. The drive then proceeds through its configured startup and enable sequence before operating the motor.

The power electronics generate a controlled output for the connected motor. Under vector control, the drive regulates motor operation according to its settings and the feedback or estimation functions available in the selected configuration. This supports controlled acceleration, deceleration, and speed adjustment within the motor’s operating limits.

The analog and digital I/O can be incorporated into a wider machine-control sequence. For example, a PLC may issue run commands, provide a process reference, and monitor available operating signals. Terminal assignments and parameter settings determine how these signals affect the drive.

This configuration does not include a feedback option. The intended control method must therefore be configured around the supplied drive arrangement rather than assuming an additional encoder-feedback option is installed. Likewise, applications requiring dynamic braking must account for the absence of an internal brake IGBT and drive-mounted brake resistor.

Correct operation depends on the DC supply, connected motor, load characteristics, control parameters, and thermal conditions. Commissioning should verify the startup sequence, motor direction, acceleration response, and behavior under the intended load.

Role in a PowerFlex 700 Motor Control Architecture

The 20BW098A0ANNANC0 occupies the motor-control position between the designated DC supply and the connected AC motor. It regulates 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

Industrial Applications

Installation and Maintenance

1. Confirm the drive configuration: Verify that 20BW098A0ANNANC0 matches the required PowerFlex 700 application, including its DC input arrangement and output-current rating.
2. Check the DC power source: Confirm that the supply architecture is compatible with the specified 932 V DC input and precharge arrangement.
3. Establish electrical isolation: Follow the applicable lockout/tagout procedure and verify that stored energy has been discharged before working on the drive.
4. Review motor requirements: Compare the motor nameplate current, voltage, power, and duty requirements with the normal-duty and heavy-duty ratings.
5. Inspect the installation environment: Check the enclosure, ventilation, ambient conditions, and mounting arrangement against the drive’s installation requirements.
6. Verify branch-circuit protection: Select and coordinate protective devices according to the installation design and applicable electrical requirements.
7. Connect the motor circuit: Follow the correct power-terminal assignments and inspect motor cable connections before energizing the system.
8. Wire the control I/O: Check the 24 V DC control circuit, analog signals, digital commands, and external interlocks against the intended control scheme.
9. Configure motor parameters: Enter the appropriate motor data and control settings for the connected motor and driven load.
10. Review braking requirements: Account for the absence of an internal brake IGBT and drive-mounted brake resistor if the application requires dynamic braking.
11. Perform controlled commissioning: Verify the startup sequence, motor direction, acceleration, deceleration, current behavior, and response to operating commands.
12. Document operating results: Record the drive reference, parameter settings, control wiring, protection arrangement, and commissioning observations for future maintenance.

Related Components

Recommended Related Models

Key Advantages

• Provides 98 A rated output current for compatible motor applications.
• Supports 90 HP normal-duty and 75 HP heavy-duty ratings.
• Uses vector control for regulated motor operation.
• Includes 24 V DC control I/O and onboard analog and digital signals.
• Incorporates DC precharge and EMC filtering.
• Supports integration into compatible PowerFlex 700 control architectures.

Technical FAQs

What are the normal-duty and heavy-duty power ratings of this drive?

The 20BW098A0ANNANC0 is rated at 90 HP for normal-duty operation and 75 HP for heavy-duty operation. Selection depends on the motor’s load profile, torque demand, and operating cycle.

What does the 932 V DC precharge arrangement do?

The precharge circuit manages the initial charging of the drive’s DC-link capacitors during startup. The power supply and associated electrical architecture must be compatible with this DC-input configuration.

Can this configuration be assumed to include encoder feedback?

No feedback option is included in the specified configuration. The motor-control arrangement should be based on the supplied drive’s control capabilities rather than assuming an additional encoder-feedback option is installed.

What needs to be considered if the motor requires dynamic braking?

This configuration does not include an internal brake IGBT or drive-mounted brake resistor. An application requiring dynamic braking needs an appropriate braking arrangement selected for the motor, load inertia, and stopping requirements.