| 摘要 |
PURPOSE:To rapidly perform recovery control, by supplying the address of a holding means to an address supplying means via a gate means when a detecting signal is generated from a detector, and changing the supplying of the address of the address supplying means to the supplying from the address. CONSTITUTION:When a control signal corresponding to the address from the address supplying means is supplied from a signal supplying means 4 to an infinite phase shifter 2 in order and the adjustment of the phase shifter is performed, the generation of recoverable control abnormality of the address supplying means 6, etc., is supplied to and detected at the detector 10. The address held in the holding means 8 prior to the generation of the abnormality is supplied to the address supplying means 6 via the gate means 12, and the supplying of the address from the address supplying means 6 is started from a supplied address. And when the abnormality is generated, an operation is shifted immediately to a recovery operation from that time. In such a way, it is possible to recover the control state of a control system to that just prior to the generation of the abnormality.
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