[en] This article describes the control system manufactured by Mitsubishi Electric in 1973 for the drive mechanism that inserts and withdraws the control rods of the pressurized-water reactor of the No.2 unit of Kansai Electric Power's Takahama Power Plant. The drive mechanism is the magnetic jacking type equipped with three coils, which are energized according to an appropriate timing pattern to move the control-rod drive shaft in or out as required. (auth.)