ABB E5EAA HENF105240R1｜DCS System Card｜

E5EAA HENF105240R1

1. Multi channel stabilized power supply for the whole machine
Convert the on-site industrial AC high voltage into a multi-channel isolated 24VDC DC power supply, and provide unified power supply to the E3ES main control card, E3EP communication module, I/O acquisition board, relay circuit, and excitation pulse triggering unit.
Multiple independent isolated outputs, separate power supply for analog/digital/communication circuits, without interference with each other;
Wide range AC input is suitable for power plant DC screens and stable output of plant power voltage fluctuations (± 20% voltage fluctuation).

2. Built in full circuit hardware protection
Integrated multiple fault self-locking protection ensures that the excitation system does not shut down:
Overcurrent and short circuit protection: Any output short circuit will immediately cut off the corresponding branch, without affecting the power supply of other cards;
Overvoltage/undervoltage protection: Automatic locking of abnormal output voltage and reporting of fault signal to E3ES main control;
Over temperature protection: The internal power tube experiences a power drop due to overheating, and if the temperature exceeds the standard, it will immediately shut down and trigger an alarm;
Anti reverse connection and surge suppression: resist lightning strikes in power plant grids and interference from the start stop impact of high-power equipment.

ABB E5EAA HENF105240R1｜DCS System Card｜