Anuclear reactor control rod drive control system and a method of controlling the movement of the control rod

摘要

A transponder card (76) for a nuclear reactor control rod drive control system (70) is provided. The control system includes a control processor (72) and a plurality of electrical devices operationally coupled to the control processor. The transponder card is configured to receive commands from the control processor, energize an appropriate electrical device when commanded, detect a failure in control circuitry of the transponder card, send a failure alarm, and remove power from an electrical device during a control circuitry failure event when there is no command to energize the electrical device. IMAGE