Technical Specifications

FAQ

1. What are the main electrical ratings of the Allen Bradley 20BE099A0ANNANC0?
The 20BE099A0ANNANC0 is a PowerFlex 700 AC drive designed for 600 VAC, three-phase power at 60 Hz. It provides a continuous output current of 99 A and is rated for 100 HP under normal-duty operation and 75 HP under heavy-duty operation. The drive uses a Frame 5 construction and is intended for industrial motor speed and torque control applications.

2. What type of motor control does the 20BE099A0ANNANC0 use?
This model uses vector control with 24 VDC I/O. Vector control allows the drive to regulate motor speed and torque more precisely than basic V/Hz control. In vector mode without feedback, the drive can provide speed regulation of approximately 0.1% of base speed across a 120:1 speed range, making it suitable for applications requiring stable low-speed operation.

3. Does the 20BE099A0ANNANC0 include an encoder feedback interface?
The standard 20BE099A0ANNANC0 configuration is specified without feedback. Its control architecture is therefore intended to operate without an internal encoder feedback option. For applications requiring closed-loop speed or position control, the system configuration should be evaluated for the appropriate PowerFlex 700 feedback hardware and compatible encoder arrangement.

4. Does this PowerFlex 700 drive have an internal braking resistor or brake IGBT?
No. The 20BE099A0ANNANC0 is supplied without a brake IGBT and without an internal brake resistor. If the application requires controlled regenerative braking, an appropriate external braking solution or another suitable drive configuration must be considered. The braking requirements should be calculated according to motor inertia, deceleration time, load characteristics, and regeneration energy.

5. What communication options are available for the 20BE099A0ANNANC0?
This catalog configuration does not include an internal communication module. The drive itself provides standard control I/O, including 2 analog inputs, 2 analog outputs, 6 digital inputs, and 3 digital outputs. For PLC, DCS, or network-based control, an appropriate communication interface can be incorporated according to the required industrial network architecture and system configuration.

6. What is the DC bus voltage range of the 20BE099A0ANNANC0?
The nominal DC bus voltage is approximately 810 VDC for the 600 VAC drive class. The specified DC bus undervoltage fault level is 381 VDC, while the bus overvoltage trip level is 1013 VDC. Abnormal DC bus voltage can result from incoming power fluctuations, excessive regeneration, incorrect deceleration settings, or problems in the input and power sections, so these factors should be checked during troubleshooting.

7. How should overcurrent faults on the 20BE099A0ANNANC0 be diagnosed?
An overcurrent condition can be caused by excessive motor load, an incorrect motor parameter setup, acceleration that is too aggressive, mechanical binding, motor or cable insulation problems, or an unsuitable current limit configuration. The drive’s programmable current limit is adjustable from 20% to 160% of rated output current, while the instantaneous current protection operates at a higher threshold depending on the drive rating.

8. Can the 20BE099A0ANNANC0 be integrated with a PLC or DCS control system?
Yes. The drive can be integrated into an industrial control system through its available analog and digital I/O, while network communication can be added using a suitable PowerFlex 700 communication option. During integration, the PLC or DCS should be configured consistently with the drive’s command source, speed reference, start/stop logic, fault handling, and feedback signals to ensure reliable control and safe motor operation.