ProductPRODUCT
Featured products
Contact Us
- Allen Bradley
- 20-HIM-A3
- PowerFlex Digital LCD Keyboard
- USA
- 116 x 16 x 70 mm
- 0.1 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 6
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
Product Overview
The Allen-Bradley 20-HIM-A3 is a Human Interface Module (HIM) used with PowerFlex AC drives. It provides a local operator interface for configuring, monitoring, and controlling drive parameters directly from the keypad.
It is widely used with PowerFlex 70, 700, 700H, 700S, and related drive families for commissioning, diagnostics, and real-time operation control.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Model | 20-HIM-A3 |
| Product Type | Digital LCD Keyboard / Human Interface Module |
| Function | Drive parameter configuration and control interface |
| Display | Backlit LCD screen |
| Input Method | Full numeric keypad + navigation keys |
| Communication | DPI (Drive Peripheral Interface) |
| Mounting | Handheld or drive-mounted |
| Compatibility | PowerFlex 70 / 700 / 700H / 700S / 700L / 750 series |
| Weight | ~0.1 kg |
| Dimensions | 116 × 16 × 70 mm |
Function and Working Principle
The 20-HIM-A3 acts as a local control and configuration terminal for PowerFlex drives. It connects via DPI communication and allows users to:
- View and modify drive parameters
- Start/stop and control motor operation (depending on permissions)
- Monitor real-time operating status and faults
- Copy and transfer parameter sets between drives (CopyCat function)
It essentially serves as the “on-site control panel” for the drive.
Role in Industrial Systems
This HIM is commonly used for:
- Drive commissioning and setup
- Maintenance and troubleshooting
- On-site parameter adjustment
- Diagnostics and fault review
- Temporary manual control during production
It is especially useful when no external HMI or PLC interface is available.
Industrial Applications
- Conveyor systems
- Pumps and fans
- HVAC drive systems
- Manufacturing machinery
- Process automation equipment
Installation Notes
- Can be mounted directly on compatible PowerFlex drives
- Also usable as a handheld unit via cable connection
- Must be inserted into DPI communication port
- Requires correct drive compatibility and firmware support
Compatible Equipment
- PowerFlex 70 / 700 / 700H / 700S / 700L
- PowerFlex 750 series (depending on configuration)
- Rockwell DPI-based drive systems
Key Advantages
- Simple local drive control without PLC
- Easy parameter access and configuration
- Portable handheld or mounted operation
- Built-in diagnostics and fault display
- CopyCat parameter backup/restore capability
Limitations
- Legacy product (discontinued in recent Rockwell lifecycle updates)
- Replaced by newer HIM models such as 20-HIM-A6 in many systems
- Limited functionality compared to modern Ethernet-based HMIs
Conclusion
The Allen-Bradley 20-HIM-A3 Digital LCD Keyboard is a classic Human Interface Module used for configuring and controlling PowerFlex drives locally.
Although it has been largely replaced by newer HIM versions, it remains widely used in existing industrial installations for commissioning, diagnostics, and manual drive control.