ABB CMA123 (3DDE300403) SYNPOL D Display Control Board

Product Description

The ABB CMA123 (3DDE300403) is a display and control interface board for the ABB SYNPOL D generator protection system. It serves as the local HMI core for generator protection relays, handling keypad input, status display, alarm indication and local operation commands. It communicates with the main protection CPU to realize on-site parameter checking, fault inquiry and manual operation for power plant generator sets.

Features

• Dedicated interface board for SYNPOL D generator protection system, part number 3DDE300403
• Integrates LCD display driving, button scanning and alarm indicator driving circuits
• Real-time display of generator electrical parameters, protection status and fault event records
• Supports local parameter browsing, reset and operation command input via front panel keys
• Internal bus communication with the main protection CPU module
• Multiple LED indicators for power, running, fault and trip status
• Industrial wide temperature design, suitable for generator cabinet environment
• Compact PCB structure, directly installed on the SYNPOL D front operator panel

Application Scenarios

• Thermal power, hydropower plant generator SYNPOL D protection system
• On-site local man-machine operation and status monitoring of generator protection relays
• Generator trip alarm viewing, fault record checking and protection reset
• Power plant generator protection cabinet maintenance, spare parts replacement and retrofit
• Distributed power station and industrial self-owned generator set protection monitoring

FAQ

Q: Which system does CMA123 belong to?
A: It is the HMI display board for ABB SYNPOL D generator protection system.

Q: What is the full part number?
A: The full order code is CMA123 / 3DDE300403.

Q: Is this board discontinued?
A: SYNPOL D series is legacy generator protection equipment; CMA123 is mainly supplied as surplus and fully tested refurbished spare parts.

Q: What is its main function?
A: It is used for local display, button operation and alarm indication of generator protection devices.