PowerFlex 70 700 Numeric HIM | 20-HIM-A3 | Allen-Bradley

Allen-Bradley 20-HIM-A3 PowerFlex Human Interface Module Numeric LCD Keypad

Product Description

The 20-HIM-A3 (20-HIM-A3) is a high-performance Human Interface Module (HIM) specifically engineered for the Allen-Bradley PowerFlex 7-Class AC drives, including the PowerFlex 70 and PowerFlex 700 series. This Series C unit, featuring Firmware Revision 6.001, provides an essential local operator interface for direct drive management. It is equipped with a high-contrast numeric LCD display and a tactile keypad, allowing maintenance personnel to perform real-time parameter configuration, advanced diagnostics, and manual motor control without the need for an external PC or software.

As a versatile interface solution, the 20-HIM-A3 (20-HIM-A3) supports both "Drive Mount" installation (plugging directly into the drive's communication port) and remote mounting for panel door access. Its intuitive navigation structure facilitates rapid troubleshooting by displaying descriptive fault codes and drive status indicators. Although Rockwell Automation officially discontinued this model on October 31, 2023, it remains a critical component for the upkeep and operation of extensive legacy PowerFlex drive installations globally.

Detailed Technical Specifications

The 20-HIM-A3 Series C adheres to the following industrial technical parameters:

• Manufacturer: Allen-Bradley (Rockwell Automation)

• Model Number: 20-HIM-A3

• Series: PowerFlex 7-Class (Architecture Class)

• Operator Type: Numeric Keypad with Navigation Keys

• Display Type: Monochrome LCD (Backlit)

• Operating Voltage: 12V DC (Sourced from the Host Drive)

• Current Consumption: 140 mA

• Firmware Version: V6.001 (Series C)

• Communication Interface: DPI (Drive Peripheral Interface)

• Enclosure Rating: IP20 (When drive mounted); IP66 (When used with optional remote kit)

• Operating Temperature: 0 to 50 °C (32 to 122 °F)

• Weight: 0.20 lbs (0.09 kg)

• Dimensions: 90 mm x 35 mm x 120 mm

Core Performance Features

• Dynamic Menu Navigation: Features an easy-to-read LCD that supports multiple languages and provides clear text descriptions of parameters.

• Full Numeric Input: The dedicated numeric keypad allows for immediate setpoint entry, significantly faster than scrolling through values.

• Hot-Swappable Design: Can be installed or removed while the drive is powered, facilitating quick diagnostics across multiple machines.

• Manual Control Keys: Includes dedicated "Start", "Stop", "Forward/Reverse", and "Jog" buttons for local testing and commissioning.

• CopyCat Functionality: Allows users to save drive parameter sets into the HIM internal memory and upload them to another drive, ensuring consistent configuration across similar equipment.