| 摘要 |
PURPOSE:To improve the reliability of an apparatus by operating an inverter- stopping means, when a main routine taking in charge of instructions to transmit an operation information does not run or when an inverter operates though an inverter stop signal is outputted. CONSTITUTION:A microcomputer performs controlling the output of inverter by a main routine and the waveform thereof by a waveform control routine. A first timer means 5 outputs a signal when said main routine does not run for a specified period of time. A second timer means 6 outputs a signal, when an information transmission is interrupted for a specified period of time. Also, a malfunction detection means 7 outputs a signal, when said inverter is operating though both the last and the present transmit data have an inverter stop signal. Further, an inverter-stopping means 8 operates, when any of said signals is given. |
