Description
The Honeywell 51452845-501 is a replacement front-panel Display and Keyboard assembly featuring an integrated Infrared (IR) communication interface, designed specifically for the UDC3500 Universal Digital Controller platform. Serving as the primary operator interface and control faceplate, this module combines bright dual-line digital displays with multi-language prompts and dedicated tactile keys. It allows plant operators and technicians to configure parameters, monitor process variables, adjust setpoints, and execute diagnostic routines directly at the device face or non-intrusively via infrared communication.
📊 Product Datasheet & Technical Parameters
| Parameter Name | Technical Specification Value |
| Model / Part Number | 51452845-501 |
| Manufacturer | Honeywell Process Solutions |
| Compatible Series | UDC3500 (and compatible UDC universal controllers) |
| Display Type | Dual-Line Digital Display with Multi-Language Prompts |
| Upper Display | 4 Digits, 7 Segments / Characters |
| Lower Display | 4 Digits, 8 Segments / Characters |
| Communication Feature | Integrated Infrared (IR) Port for PC / Pocket PC Configuration |
| Front Face Protection | NEMA 4X / IP66 Enclosure Rating |
| Weight | Approximately 0.41 kg (1.5 kg shipping weight) |
| Origin of Manufacture | United States / European Union |
⚙️ Product Usage Instructions
🔌 Replacement and Mounting: Power down the controller housing entirely before carefully unlatching or unscrewing the old display module from the UDC3500 chassis, ensuring the internal ribbon connector pins are properly aligned when snapping the new unit into place.
🔗 Infrared Configuration: Utilize the built-in front-face IR communication port with Honeywell Process Instrument Explorer (P.I.E.) software on a configuration tool for quick, non-intrusive parameter setup without opening panel doors.
⚡ Power and Operational Check: Re-energize the controller unit and verify that the upper and lower digital displays illuminate cleanly, showing proper process variables and configuration readouts without flickering.
💻 Keypad Security Settings: Program localized password protection levels via the front-panel menu to prevent unauthorized parameter modifications on the operational floor.
❓ Frequently Asked Questions (Q&A)
❓ Q1: What is the main function of part number 51452845-501?
✅ A1: It functions as the official replacement display and keyboard operator interface board equipped with an infrared communication link for the UDC3500 controller.
❓ Q2: Does this display module include infrared communication capabilities?
✅ A2: Yes, the 501 variant features an integrated IR interface supporting remote non-intrusive configuration via compatible software tools.
❓ Q3: What environmental protection rating does the front face maintain when installed?
✅ A3: When correctly mounted on the controller housing, it delivers NEMA 4X and IP66 front-face protection, making it resilient against dust, moisture, and wash-down procedures.
🔍 Recommended Alternative Series and Models
- Honeywell UDC3500 Universal Digital Controller (Complete Unit)
- Honeywell UDC3200 Display/Keyboard Module
- Honeywell 51452831-501 Power/Output PWA (24 Vac/dc)
- Honeywell 51452845-501 Power/Output PWA (90-264 Vac)
- Honeywell 50006376-501 Optional Analog Input PWA
- Honeywell 51452825-501 Communications PWA (RS-422/485)
- Honeywell 51452837-502 Ethernet Communications PWA
- Honeywell ControlEdge HC900 Controller Module
- Honeywell Experion C300 Controller Unit
- Honeywell UDC2500 Universal Digital Controller




