20-HIM-A6 PowerFlex HIM with Flashing Fault Indication and Password Protection

Product Overview
The Allen-Bradley 20-HIM-A6 is a Local Enhanced Human Interface Module (HIM) from Rockwell Automation, purpose-built to serve as the primary operator interface for the PowerFlex family of AC and DC drives. This versatile module provides a robust communication and configuration tool that enables operators, technicians, and engineers to monitor drive performance, adjust parameters, diagnose faults, and control motor operation directly at the drive level. The Allen-Bradley 20-HIM-A6 significantly enhances the user experience compared to standard built-in interfaces, offering a full-numeric keypad and an intuitive menu structure that streamlines complex configuration tasks.

The 20-HIM-A6 is designed to integrate seamlessly with a wide range of PowerFlex products, including the PowerFlex 70, 700, 700H, 700S, 700L, 753, and 755 series, as well as SMC Flex and SMC-50 soft starters . The module communicates with the host drive using the Drive Peripheral Interface (DPI) protocol at selectable data rates of 125 Kbps or 500 Kbps, ensuring reliable and deterministic data exchange . The Allen-Bradley 20-HIM-A6 is powered directly by the host drive via a 12V DC supply, drawing only 140 mA, which eliminates the need for external power connections .

The 20-HIM-A6 features a high-contrast LCD display with multi-language support, including English, Portuguese, French, Italian, German, Spanish, and Dutch, making it suitable for multinational facilities . Its enhanced diagnostic capabilities, including a flashing screen for fault and alarm indication and real-time trend graphs of critical parameters such as output frequency, current, and voltage, empower maintenance teams to quickly identify and resolve issues . The rugged design, rated NEMA Type 1 for indoor cabinet installation, ensures reliable operation in typical industrial environments.

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Description

Technical Specifications

Parameter Name	Value
Product Model	Allen-Bradley 20-HIM-A6
Manufacturer	Rockwell Automation / Allen-Bradley
Product Type	Human Interface Module (HIM) / Communication Module
Display Type	LCD with full-numeric keypad
Communication Protocol	Drive Peripheral Interface (DPI)
Data Rate	125 Kbps or 500 Kbps (selectable)
Supply Voltage	12V DC (powered by host drive)
Current Consumption	140 mA
Protection Rating	NEMA Type 1 (IP20, indoor use)
Operating Temperature	0°C to +50°C (32°F to 122°F)
Storage Temperature	-40°C to +85°C (-40°F to 185°F)
Vibration Resistance	2.5 G @ 5 Hz – 2 kHz
Shock Resistance	30 G, 11 ms pulse
Weight	Approx. 0.11 kg (0.25 lbs)
Compatible Drives	PowerFlex 70, 700, 700H, 700S, 700L, 753, 755; SMC Flex, SMC-50
Mounting Options	Drive-mount (bezel), hand-held (via cable), or remote-mount (with 20-HIM-B1)
Multi-Language Support	English, Portuguese, French, Italian, German, Spanish, Dutch

Main Features and Advantages

The Allen-Bradley 20-HIM-A6 distinguishes itself from standard built-in drive interfaces through its enhanced user experience and comprehensive diagnostic capabilities. The full-numeric keypad, combined with an intuitive menu structure, allows for rapid parameter entry and navigation, significantly reducing configuration time during commissioning and changeovers . Unlike the basic HIMs that only display simple parameters, the 20-HIM-A6 offers a sophisticated interface that can display real-time trend graphs of critical drive performance metrics, including output frequency, current, and voltage, enabling operators to identify abnormal patterns before they escalate into failures . The flashing LCD screen provides instant visual alerting for faults and alarms, dramatically improving diagnostic speed and reducing downtime .

Multi-language support is a key advantage of the Allen-Bradley 20-HIM-A6, particularly for global manufacturing facilities with multilingual maintenance teams . The module supports seven languages by default, eliminating communication barriers and ensuring that all operators can effectively interact with the drive. Password protection is another critical feature of the 20-HIM-A6, allowing facilities to prevent unauthorized parameter changes by setting a numeric code up to 65,535 . The module also supports three different parameter access levels—Monitor, Basic, and Advanced—enabling administrators to tailor the user interface to different user roles and requirements .

The 20-HIM-A6 also excels in its installation flexibility. It can be mounted directly in the drive bezel (port 1) for NEMA Type 1 indoor protection, or used as a hand-held device via port 2 using the 20-HIM-H10 interface cable . For remote door-mount applications, the Allen-Bradley 20-HIM-A6 can be paired with the 20-HIM-B1 remote bezel, allowing the HIM to be mounted up to 9.8 feet away from the drive . This flexibility makes the 20-HIM-A6 adaptable to a wide range of installation scenarios, from simple cabinet-mount configurations to more complex control panel designs. The module’s robust construction, featuring vibration resistance of 2.5 G and shock resistance of 30 G, ensures reliable operation even in mechanically demanding industrial environments .