PowerFlex 700 Drive Profile

The Allen Bradley 20BP205A0ANNANC0 belongs to the PowerFlex 700 AC drive family and uses a high-power Frame 6 configuration. Its catalog number identifies a 540 VDC DC-input drive with precharge, 205 A output capacity, no feedback, no internal communications module, and vector control with 24 VDC I/O.

The drive uses sine-coded PWM with programmable carrier-frequency settings. Carrier frequencies of 2, 4, 8, and 10 kHz are supported, with drive ratings based on the 4 kHz setting.

For motor-control applications, the drive supports sensorless vector control with full tuning as well as V/Hz control with customization. This makes the unit adaptable to applications ranging from general-purpose variable-speed motors to higher-performance industrial machinery.

The PowerFlex 700 also incorporates several protective and diagnostic functions. These include phase-to-phase output short-circuit protection, phase-to-ground fault detection, heat-sink temperature monitoring, motor overload protection, programmable current limiting, and configurable acceleration/deceleration functions.

The model is also designed for demanding industrial environments, with an IP20 / NEMA/UL Type 1 enclosure configuration and an operating ambient range of approximately 0 to 50°C for applicable Frame 5 and Frame 6 configurations.

Rockwell Automation lists the PowerFlex 700 20B family as discontinued as of November 30, 2023, so the 20BP205A0ANNANC0 is commonly relevant today for installed-base maintenance, replacement, repair, retrofit, and industrial equipment restoration projects.

Technical Specifications

Parameter	Specification
Manufacturer	Allen-Bradley / Rockwell Automation
Product Family	PowerFlex 700
Drive Series	20B
Model	20BP205A0ANNANC0
Product Type	AC Drive
Input Type	DC Input with Precharge
Input Voltage	540 VDC
Output Current	205 A
Normal-Duty Rating	110 kW
Heavy-Duty Rating	90 kW
Frame Size	Frame 6
Control	Vector Control
Control I/O	24 VDC I/O
Feedback	No Feedback
Brake IGBT	Without Brake IGBT
Internal Brake Resistor	No
Internal Communication Module	No
Enclosure	IP20 / NEMA/UL Type 1
EMC Filter	EMC Filter with Common-Mode Choke
Analog Inputs	2
Analog Outputs	2
Digital Inputs	6
Digital Outputs	3
Maximum Output Frequency	420 Hz
Carrier Frequency	2, 4, 8, 10 kHz
Overload Capacity	110% for 1 min / 150% for 3 sec
Maximum Short-Circuit Rating	200,000 A symmetrical
Power Ride-Through	15 ms at full load
Efficiency	Approximately 97.5% at rated current and nominal line voltage
Operating Temperature	0 to 50°C for applicable Frame 5–6 IP20 configurations
Maximum Altitude	1,000 m without derating
Relative Humidity	5–95%, non-condensing
Dimensions	976.3 × 403.9 × 275.5 mm
Weight	71.44 kg (157.50 lb)
Lifecycle	Discontinued

Recommended Related Models

For PowerFlex 700 DC-input applications, the following models are useful when evaluating alternatives or matching an existing drive configuration:

Model	Product Type	Key Configuration
20BP170A0ANNANC0	PowerFlex 700 AC Drive	540 VDC, 170 A, no feedback
20BP205A0ANNANA0	PowerFlex 700 AC Drive	540 VDC, 205 A, standard-control configuration
20BP205A0ANNACC1	PowerFlex 700 AC Drive	540 VDC, 205 A, feedback configuration
20BP205A0ANYANC0	PowerFlex 700 AC Drive	540 VDC, 205 A, related braking configuration
20BP205A3ANNACC0	PowerFlex 700 AC Drive	540 VDC, 205 A, related control/feedback configuration
20BP260A0ANNANC0	PowerFlex 700 AC Drive	540 VDC, 260 A, no-feedback configuration

When replacing an installed PowerFlex 700, the complete catalog number should be compared rather than selecting a drive solely according to current rating. Input configuration, feedback, control type, braking hardware, I/O, and enclosure requirements can significantly affect compatibility.

Popular Related Models

Allen-Bradley 20BP105A0ANNANC0 PowerFlex 700 AC Drive
Allen-Bradley 20BP105A0ANNANC1 PowerFlex 700 AC Drive
Allen-Bradley 20BP140A0ANNANC0 PowerFlex 700 AC Drive
Allen-Bradley 20BP170A0ANNANC0 PowerFlex 700 AC Drive
Allen-Bradley 20BP170A0ANNANC1 PowerFlex 700 AC Drive
Allen-Bradley 20BP260A0ANNANC0 PowerFlex 700 AC Drive
Allen-Bradley 20BC170A0ANNANA0 PowerFlex 700 AC Drive
Allen-Bradley 20BC205A0ANNANC0 PowerFlex 700 AC Drive

The 20BP205A0ANNANC0 is particularly relevant for maintenance and retrofit projects involving high-power PowerFlex 700 DC-bus systems where a 205 A, 540 VDC, no-feedback vector-control configuration is required.

Applications

The 20BP205A0ANNANC0 is suited to industrial systems requiring high-current variable-speed motor control and stable torque performance.

Typical applications include:

Industrial conveyor systems
Material handling equipment
Pumps and large process fans
Industrial compressors
Extrusion machinery
Paper and converting equipment
Metal processing machinery
Hoisting and lifting systems
Large machine tools
Process production lines
Heavy-duty manufacturing equipment
High-power AC motor control systems

Its 205 A output rating makes it appropriate for larger motor applications where smaller PowerFlex drives may not provide sufficient current capacity. The vector-control architecture can also provide improved motor performance compared with basic V/Hz control.

Advantages

High-current 205 A output

The drive provides a 205 A output rating and is designed for high-power industrial motor applications. Its catalog rating corresponds to approximately 110 kW normal duty and 90 kW heavy duty.

540 VDC precharge input

The 20BP205A0ANNANC0 uses a 540 VDC DC-input configuration with precharge, making it suitable for systems built around a DC bus architecture.

Vector control capability

Vector control provides more precise motor control than conventional scalar control. It can be useful in applications requiring stable speed and improved torque response.

High speed-regulation capability

In vector-control operation without feedback, the PowerFlex 700 architecture can provide approximately 0.1% base-speed regulation across a 120:1 speed range, depending on motor setup and application conditions.

Integrated EMC filtering

The drive includes an EMC filter with a common-mode choke, helping reduce conducted electrical interference within an appropriately designed installation.

No internal brake resistor

This version does not include an internal braking resistor or brake IGBT, allowing braking requirements to be engineered separately when the application requires external braking equipment.

Flexible motor-control modes

The PowerFlex 700 platform supports selectable motor-control strategies, including sensorless vector with full tuning and customized V/Hz operation.

Industrial I/O capability

The drive provides 2 analog inputs, 2 analog outputs, 6 digital inputs, and 3 digital outputs, giving the controller a practical interface for machine and process signals.

High overload capability

The drive supports 110% overload for up to 1 minute and 150% overload for up to 3 seconds, depending on the applicable drive configuration and operating conditions.

Technical FAQs

1. What is the rated output current of the 20BP205A0ANNANC0?
The rated output current is 205 A.

2. What is the DC input voltage of this PowerFlex 700 drive?
The catalog configuration uses a 540 VDC DC input with precharge.

3. What is the normal-duty power rating?
The drive is rated at approximately 110 kW normal duty.

4. What is the heavy-duty power rating?
The heavy-duty rating is approximately 90 kW.

5. Does the 20BP205A0ANNANC0 support vector control?
Yes. This configuration uses vector control with 24 VDC I/O and supports sensorless vector operation with tuning.

6. Does this model have encoder feedback?
No. The 20BP205A0ANNANC0 is specified without feedback.

7. What type of braking hardware is included?
This model is supplied without a brake IGBT and without an internal brake resistor. External braking equipment may therefore be required for applications with significant regenerative energy.

8. What communication module is installed?
The catalog configuration has no internal communication module. Communication requirements can be addressed through the appropriate PowerFlex 700 options and system architecture.

9. What overload capability does the drive provide?
The PowerFlex 700 platform specifies up to 110% overload for 1 minute and 150% overload for 3 seconds, subject to operating conditions and drive configuration.

10. What motor-control feedback accuracy can be expected without an encoder?
In vector-control mode without feedback, the specified speed regulation can reach approximately 0.1% of base speed across a 120:1 speed range, when the motor and drive are correctly configured and tuned.

Look forward to your comments!Comment