| 摘要 |
PURPOSE:To improve the working ratio of a load, by OFF-working an only output circuit to which abnormal current flows. CONSTITUTION:By a CPU 3, it is discriminated whether the output voltage V0 of a voltage dividing circuit 12 is on a logical level '1' or not, in other words, whether abnormal current flows to any of output circuits 61-6n or not. In case of YES, the ON/OFF-state of the output circuits 61-6n at the present point of time is stored in the CPU 3, and after that, all of the respective output circuits 61-6n are turned OFF. When abnormal current flows to the output circuit 61 by ON-working, after the output circuit 61 is turned OFF, a luminous diode indicating a suggestion content on signal S1 is ON/OFF-worked. After that, on the respective output circuits 62-6n, procedures according to the same content are executed. In this manner, the only output circuit to which abnormal current is permitted to flow, among the output circuits in an ON-state is continuously OFF-worked. The luminous diode in relation to the output circuit to which the abnormal current flows is turned ON/OFF, and so it can be observed that an abnormal state is generated on the load of the output circuit. |
