| 摘要 |
PURPOSE:To check the operation of an abnormality warning circuit itself for oil pressure or the like, by impressing an abnormal starting detector with an oscillating output for simulating the overspeed of an engine. CONSTITUTION:A push-botton switch 39 is turned on to check whether the wire of a rotation sensor 1 has snapped or short-circuited or is proper. If the rotation sensor 1 is proper, comparators 7, 8 are both turned on and an AND circuit 16 sends out an output. An oscillator 42 for setting flip-flops is started by the turn-on of the switch 39 to apply an oscillating output to a point (c). If each of comparators 3-6 is proper, an output ''1'' is sent out and each of AND circuits 10-15 sends out an output. |
