PLCs, Power Supplies & Others

Core Functionality of This Excitation Card

The ABB 216DB61 manages field current in synchronous generators. This unit acts as a dedicated excitation system interface card. It processes feedback signals from the main exciter field. Consequently, the module ensures stable voltage regulation under dynamic loads.

Technical Specifications and Physical Attributes

This excitation card measures 127 mm in height. Its width is 35 mm for single-slot occupancy. The board depth reaches 185 mm including the front connector. You will find a total of 64 discrete components on the PCB. These include precision resistors, capacitors, and optocouplers. The module stores no internal batteries or supercapacitors. Instead, it relies on the host controller for operational memory.

Connectivity and Signal Interface

A single 48-pin DIN 41612 connector provides the backplane interface. Furthermore, two 10-pin ribbon cable headers support auxiliary I/O signals. The card uses gold-plated contacts for corrosion resistance. Each terminal block accepts wire gauges from 0.5 to 1.5 mm². This design guarantees reliable field wiring for long-term use.

Power Requirements and Energy Characteristics

The ABB 216DB61 draws 120 mA from a 5 V DC logic supply. Additionally, it requires 60 mA from a separate ±15 V DC analog rail. The card does not incorporate any electrolytic capacitors above 10 µF. Hence, it exhibits no residual charge after power-down. Total power dissipation stays below 1.5 W under normal operation. This low heat output eliminates the need for active cooling.

Environmental and Weight Data

Installation and Compatibility Notes

You can insert this card into any ABB AC800PEC backplane slot. The module works with UNITROL 6000 series excitation systems. Always verify the ±15 V supply before powering the unit. Then, check that the 48-pin connector aligns correctly. The card operates reliably from -10°C to +55°C ambient temperature.

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