Honeywell 51401560-100 QWERTY Membrane Keyboard

The Honeywell 51401560-100, also cataloged as the 51401560-100 QWERTY Membrane Keyboard, operates as a dedicated operator interface component for command entry, alarm interaction, and function key execution within Honeywell control system environments. The assembly combines a QWERTY keyboard layout with a relegendable function key panel and requires connection to a compatible Honeywell keyboard interface board for full system communication.

Hardware Specifications

Operator Interface and Alarm Management Functions

The 51401560-100 provides operator interaction capabilities for Honeywell process control environments. The assembly combines standard QWERTY data entry functionality with an RFKB section consisting of 79 user-relegendable function keys used for command execution, screen navigation, and system-specific operational functions.

The integrated alarm functionality enables dedicated interaction with configured control system alarm handling features. A dedicated membrane test key is included for LED verification functions, allowing confirmation of indicator operation during maintenance procedures.

Because the membrane assembly represents the upper keyboard section only, it must be installed with a compatible Honeywell keyboard interface board to establish communication with the host control system.

Environmental Protection and Panel Integration

The keyboard is designed for industrial panel-mounted installations. The front surface provides IP65 protection against dust, moisture, grease, and other airborne contaminants typically encountered in process control facilities.

The membrane-based construction eliminates exposed mechanical switch mechanisms on the operator-facing surface. Combined with the industrial polymer key structure and enclosed membrane circuit matrix, the assembly is suited for continuous operator interface service in control room and process automation environments.

Frequently Asked Questions

Q: How many relegendable function keys are provided?
A: The RFKB section provides 79 user-relegendable function keys.

Q: Can the membrane panel operate without an interface board?
A: No. The membrane keyboard assembly must be connected to a compatible Honeywell keyboard interface board for system communication.

Q: What ingress protection rating is provided?
A: The front panel assembly provides IP65-rated protection.

Field Installation Guidelines

• Verify compatibility with the installed keyboard interface board.

• Mount the assembly in a properly sealed panel cutout.

• Inspect membrane surfaces for physical damage before installation.

• Confirm interface cable connections before energization.

• Perform LED test verification during commissioning.