Allen Bradley 20G11NC072JA0NNNNN Air-Cooled AC Variable Frequency Drive (VFD)

FAQ

Q1: What is the Allen-Bradley 20G11NC072JA0NNNNN used for?
A: The 20G11NC072JA0NNNNN is used for controlling three-phase AC motors in applications such as pumps, fans, conveyors, compressors, and process machinery that require accurate speed and torque control.

Q2: What are the voltage and current ratings of this drive?
A: The drive operates on a 400 VAC three-phase power supply and provides 72 A output current. It supports 37 kW Normal Duty and 30 kW Heavy Duty motor applications.

Q3: Does the 20G11NC072JA0NNNNN include a built-in braking transistor?
A: Yes. This model includes a built-in dynamic braking transistor, allowing connection of an external braking resistor for applications requiring faster deceleration or improved stopping performance.

Q4: What type of enclosure does this PowerFlex 755 drive use?
A: The drive uses an IP20/IP00 NEMA/UL Open Type enclosure and is intended for installation inside a suitable industrial control cabinet with proper ventilation.

Q5: Does the 20G11NC072JA0NNNNN include a keypad or HIM module?
A: No. This configuration is supplied as Blank (No HIM). A compatible PowerFlex HIM can be installed separately for local programming, monitoring, and diagnostics.

Q6: What are the dimensions and weight of the 20G11NC072JA0NNNNN?
A: The drive dimensions are approximately 480 × 222 × 300 mm, and the weight is approximately 18 kg. The compact Frame 4 design allows installation in standard industrial control cabinets.

Q7: What communication features are available on this drive?
A: The PowerFlex 755 includes embedded EtherNet/IP communication, allowing direct integration with Rockwell Automation Logix control systems. Optional communication, feedback, and safety modules can also be added for expanded system requirements.

Q8: What should be checked before installing the 20G11NC072JA0NNNNN?
A: Before installation, verify the incoming three-phase power supply, motor ratings, wiring, grounding, cabinet ventilation, network configuration, braking resistor requirements, and drive parameters to ensure safe and reliable operation.

20G11NC072JA0NNNNN Allen Bradley

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