Allen-Bradley 20-HIM-A6 – PowerFlex Architecture Class Human Interface Module | PowerFlex Drive Platform
Engineering Background: The Allen-Bradley 20-HIM-A6 is Rockwell Automation’s dedicated Human Interface Module (HIM) designed for the PowerFlex Architecture Class family of variable frequency drives (VFDs). It provides operators and commissioning engineers with a portable, full-featured interface for drive parameter programming, real-time monitoring, and fault diagnostics — without requiring a laptop or software connection.
Product Positioning: The 20-HIM-A6 is the preferred field tool for drive commissioning engineers who demand reliable, on-site access to drive parameters across multi-drive installations. Its detachable design and DPI (Drive Peripheral Interface) connectivity make it indispensable in panel-mount and remote-mount configurations across industrial automation environments.
Complete Technical Specifications
- Part Number: 20-HIM-A6
- Manufacturer: Allen-Bradley / Rockwell Automation
- Series: PowerFlex Architecture Class HIM
- Interface Type: Human Interface Module (HIM) — Detachable / Remote-Mountable
- Communication Protocol: DPI (Drive Peripheral Interface)
- Display: 4-line × 20-character LCD with backlight
- Keypad: Full alphanumeric navigation keypad with dedicated function keys
- Compatible Drive Families: PowerFlex 70, PowerFlex 700, PowerFlex 700H, PowerFlex 700S, PowerFlex 700L, PowerFlex 7000
- Mounting Options: Panel-mount bezel (flush), remote-mount with DPI cable (up to 3 m)
- Operating Temperature: 0 °C to +55 °C (32 °F to 131 °F)
- Storage Temperature: -40 °C to +85 °C
- Enclosure Rating: IP 54 (panel-mount configuration)
- Power Supply: Powered via DPI port (no external power required)
- Memory: Non-volatile parameter storage for drive configuration backup
- Languages Supported: English, French, German, Italian, Spanish, Portuguese
- Approvals: CE, UL, cUL
- Weight: Approx. 400 g
- Catalog Number: 20-HIM-A6
Proven Application Environments
- Manufacturing & Assembly Lines: On-site parameter adjustment and fault reset during production without PLC downtime
- HVAC & Building Automation: Commissioning and monitoring of PowerFlex drives controlling fans, pumps, and compressors
- Water & Wastewater Treatment: Remote HIM mounting in harsh environments for pump and blower drive control
- Oil & Gas: Portable drive interface for wellhead and pipeline pump stations
- Mining & Minerals Processing: Conveyor and crusher drive commissioning in dusty, high-vibration environments
- Food & Beverage: Hygienic panel-mount installations with IP54 protection
- Marine & Offshore: Drive monitoring in space-constrained control panels
Engineering Advantages
- Detachable Design: Unplug from the drive face and carry to a remote location — ideal for large panel installations where the drive is inaccessible during operation
- Parameter Copy Function: Upload/download complete drive parameter sets between drives — dramatically reduces commissioning time on multi-drive projects
- Real-Time Fault Diagnostics: Displays active faults, fault history, and diagnostic codes with plain-language descriptions — reduces MTTR (Mean Time to Repair)
- No Software Required: Full drive programming capability without RSLogix, DriveExecutive, or a laptop — critical for field service scenarios
- Backlit LCD: Readable in low-light industrial environments and outdoor enclosures
- Non-Volatile Memory: Parameter sets retained without battery backup — safe for power cycling
- Multi-Language Support: Reduces operator error in multilingual facilities
- Hot-Swap Capable: Can be connected/disconnected while drive is powered (follow Rockwell safety procedures)
System Architecture & Signal Flow
The 20-HIM-A6 connects to the PowerFlex drive via the DPI (Drive Peripheral Interface) port — a proprietary Rockwell Automation serial bus that supports up to five peripheral devices simultaneously. Signal flow is bidirectional: the HIM reads drive parameters, status registers, and fault logs from the drive’s internal memory, and writes parameter changes back to non-volatile drive storage.
- DPI Port Location: Front face of PowerFlex 70/700/700S/700H drives
- Cable Length: Standard integral cable; remote mount via 20-HIM-H10 (1 m) or 20-HIM-H30 (3 m) DPI cables
- Peripheral Coexistence: HIM operates alongside other DPI peripherals (e.g., 20-COMM-E EtherNet/IP adapter, 20-COMM-D DeviceNet adapter) without conflict
- Parameter Database: Accesses all drive parameter groups including Motor Control, Speed Reference, Protection, I/O Configuration, and Communication
- Fault Buffer: Displays last 8 fault events with timestamp and drive status at time of fault
Sourcing & Quality Verification
Konmask.com applies a rigorous 4-step verification process to every Allen-Bradley component before shipment:
- Documentation Audit: Verify manufacturer certificates of conformance, country of origin, and production date codes against Rockwell Automation’s published catalog data
- Physical Inspection: Check label printing quality, holographic seals, housing mold marks, and connector pin integrity against genuine reference units
- Functional Bench Test: Power-up test via DPI connection to a known-good PowerFlex drive; verify LCD display, keypad response, parameter read/write, and fault log access
- Packaging & Serialization Check: Confirm original Rockwell Automation packaging, catalog label, and serial number traceability before dispatch
All units are shipped in original or equivalent ESD-safe packaging with full documentation.
Procurement Process
- Submit Inquiry: Contact us at [email protected] or via the product page with your required quantity and delivery timeline
- Receive Quotation: We respond within 24 hours with pricing, lead time, and stock availability confirmation
- Order Confirmation: Issue a Purchase Order or pay via the online checkout; we accept T/T, PayPal, and major credit cards
- Quality Inspection & Dispatch: Unit passes 4-step verification; shipped with tracking via DHL, FedEx, or UPS Express
- Delivery & Support: Typical delivery 3–7 business days internationally; post-sale technical support available via email and phone
Technical FAQ
Q: Is the 20-HIM-A6 compatible with PowerFlex 4 or PowerFlex 40 drives?
A: No. The 20-HIM-A6 uses the DPI protocol and is designed for PowerFlex Architecture Class drives (70, 700, 700S, 700H, 700L, 7000). PowerFlex 4/40 use a different peripheral interface (DSI). The correct HIM for those drives is the 22-HIM-A3 or 22-HIM-C2S.
Q: Can I use the 20-HIM-A6 to copy parameters from one drive to another?
A: Yes. The HIM’s built-in memory can store a complete parameter set from one drive and upload it to another drive of the same type and firmware version — a standard commissioning practice for multi-drive installations.
Q: Does the 20-HIM-A6 require external power?
A: No. It is powered entirely through the DPI port from the drive’s internal power supply. No separate power wiring is required.
Q: What is the difference between 20-HIM-A6 and 20-HIM-C6S?
A: The 20-HIM-A6 is a standard HIM with LCD display and full keypad. The 20-HIM-C6S is a compact HIM with a smaller form factor and limited display. The A6 is preferred for commissioning and diagnostics; the C6S is used for permanent panel-mount status display.
Q: How do I verify the unit is genuine before installation?
A: Check the Rockwell Automation holographic label on the rear housing, verify the catalog number and date code on the front label, and confirm the serial number via Rockwell’s Product Compatibility and Download Center (PCDC). All Konmask units include documentation to support this verification.
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