GE 323A2374P3 Mini Terminal Control Display

Product Overview

The 323A2374P3 Mini-Terminal Control Display is an operator interface unit developed by General Electric for the Mark V Speedtronic turbine control platform. Designed as a local human–machine interface, this terminal enables operators and maintenance engineers to view operating data, issue commands, and navigate control functions directly at the turbine control panel.

This unit is not a controller itself but functions as an auxiliary display and input device connected to the Mark V system architecture. Its compact construction and panel-mount design make it suitable for retrofit installations and space-limited control cabinets.

Functional Description

The 323A2374P3 integrates a small-format LCD display with a membrane keypad to provide real-time interaction with the turbine control logic. It supports parameter monitoring, system navigation, and command entry through predefined function keys and numeric inputs. The display is commonly used during commissioning, diagnostics, and routine operational checks.

Keypad functions are context-sensitive and expanded through the integrated Shift key, allowing multiple command layers without increasing panel size. Communication and power are provided through a side-mounted connector, enabling direct connection to Mark V control assemblies.

Technical Specifications

• Product Type: Mini-Terminal Control Display

• Manufacturer: General Electric

• Control System Compatibility: GE Mark V Speedtronic

• Display Type: Monochrome LCD

• Display Format: Two-line, 40-character text display

• Keypad Type: Touch-sensitive membrane keypad

• Key Functions:

• Function keys F1–F20

• Numeric input keys

• Scroll up and scroll down

• Raise and lower commands

• More and less navigation keys

• Shift key for extended functions

• Mounting Method: Panel mount with screw fixation

• Electrical Interface: Side-mounted connector for power and data

• Weight: 0.35 kg

Application Scenarios

The 323A2374P3 is typically installed in:

• Gas turbine Mark V control cabinets

• Steam turbine electro-hydraulic control panels

• Auxiliary operator stations for turbine diagnostics

• Legacy Speedtronic system retrofits requiring local display access

It is widely used in power generation facilities where Mark V systems remain in long-term operation.

Installation and Integration Notes

This mini-terminal must be used as part of a complete Mark V Speedtronic system. It does not perform control logic independently and relies on the main control processors for data and command execution. Proper wiring, grounding, and configuration are essential to ensure accurate display operation and keypad response.

Frequently Asked Questions

Q: Can the 323A2374P3 operate as a standalone controller?
A: No. The unit functions solely as a display and input terminal and must be connected to a Mark V control system.

Q: Is this compatible with Mark VI or Mark VIe systems?
A: No. The 323A2374P3 is designed specifically for the Mark V Speedtronic architecture.

Q: Does the display support graphical output?
A: No. The unit uses a text-based LCD with a two-line, 40-character format.