ABB CMA122 3DDE300402 (SYNPOL D) Alstom Synpol Spare

Product Description

The CMA122 3DDE300402 (Synpol D) is a specialized, high-performance Central Processing Unit (CPU) module engineered by ABB exclusively for integration within Synpol D generator excitation and governor control architectures. 

Technical Specifications

• Manufacturer: ABB

• System Series Architecture: Synpol D Control / Excitation Platform

• Model Designation: CMA122

• Global Part Number / Product ID: 3DDE300402

• Device Classification: Central Processing Unit (CPU) Module / Main Control Core

• Input System Power: 24 V DC nominal (or system-specific chassis backplane feed)

• Signal Processing Domain: Synchronized calculation of high-speed analog and digital input/output arrays

• Protocol Compatibility: Embedded communication engine for standard industrial network interfaces

• Ambient Operating Temperature Envelope: 0°C to +55°C (32°F to 131°F)

• Storage Temperature Boundaries: -20°C to +70°C (-4°F to 158°F)

• Relative Humidity Range: Up to 95% non-condensing maximum limits

• Product Net Weight: 0.14 kg (Approx. 0.31 lbs)

• Physical Module Dimensions (W x H x D): 10.3 cm x 1.5 cm x 17.7 cm

Industrial Application Scenarios

The CMA122 3DDE300402 (Synpol D) CPU module is explicitly deployed within the main control loops of synchronous generator excitation systems, heavy utility power factor correctors, and high-capacity static rectifiers. In power plants and chemical complexes, this controller functions as the primary regulator tracking voltage, frequency, and phase alignment across the generator's rotor windings. Because grid loads can shift violently, this processor must compute complex automatic voltage regulator (AVR) formulas millisecond-by-millisecond, adjusting the triggering pulses sent out to heavy power semiconductors to keep the power plant synchronized with the main electric grid.