WARIKOMYOINNOSHIIKENSUSHORIHOSHIKI

摘要

PURPOSE:To shorten the time required for the detection and decision of interruption factors to detect every kind of factors at a minimum speed by executing the exclusive processing corresponding to a generated interruption at the generation of the expected interruption and continuing normal processing at no generation. CONSTITUTION:A lower computer 30 for direct digital control DDC execution receives a command value signal 31 from an upper computer 10 and conducts the ignition angle control of thyristor banks 40 by a load terminal voltage signal 33 and a load current signal 34 both of which are feedbacked from a load 70. An interruption factor checking master table 80 corresponding to operation modes composed of modes (1), (2)-(n) is prepared, control methods at on-line operation is devided into (n) kinds of operartion modes and interruption factors in each operation mode are set up in the table sequentially in the order of generation. If expected interruption is generated, the exclusive processing corresponding to a generated interruption is carried out.