Honeywell AID-3 51191590-200/D1 Operator Keyboard / Control Panel Module

The Honeywell AID-3 51191590-200/D1, also cataloged as the 51191590-200/D1 Operator Keyboard, operates as a dedicated hardware component for direct input and control within Honeywell DCS/Safety Manager platforms.

Hardware Specifications

Process Control Integration and DCS Interface

• 4-20 mA HART Loop Protocol Intervention: The keyboard provides direct manual access to control loop parameters, allowing operators to force manual output overrides on 4-20 mA HART loops or modify secondary variable configurations directly from the terminal console.
• Galvanic Isolation and Transient Protection: The interface circuitry utilizes optocoupler galvanic isolation on the serial communication lines, isolating the host operator station hardware from potential field-induced common-mode voltages.
• Cold Junction Compensation (CJC) Threshold Calibration: Operators can execute calibration diagnostics and manual offsets for thermocouple modules, directly updating CJC algorithms from the console interface.

Frequently Asked Questions

Q: Can the AID-3 keyboard be connected to standard consumer USB ports?

A: No. The AID-3 51191590-200/D1 relies on a proprietary Honeywell keyboard interface connection protocol. It cannot interface with standard USB ports without specialized Honeywell interface converter modules.

Q: Is the front panel membrane of the AID-3 resistant to industrial chemical splashes?

A: Yes. The front membrane of the panel is manufactured from high-durability polyester, providing physical resistance to oil, water, and standard industrial solvents.

Field Installation Guidelines

• Console Cutout Sealing: When mounting the panel in an operator console, ensure the rear foam gasket is completely compressed to maintain the NEMA/IP seal rating of the enclosure.
• Shield Grounding Wire: Connect the dedicated ground tab on the rear metal chassis of the keyboard directly to the operator console common ground point using a low-impedance copper wire.
• Connector Stress Relief: Secure the interface cable using the integrated cable clamp on the rear panel of the keyboard to prevent physical strain on the internal connection header.