| 摘要 |
<p>PURPOSE:To prevent serious fault, which requires interruption of power supply to coils and long recovery time, upon occurrence of abnormality by inspecting the state of coil by means of a tester built in a section controller prior to conduction of the thrust coil of a linear motor. CONSTITUTION:Thrust coil 4 of a linear motor vehicle 1 is sectioned into minimum unit sections which are then switched sequentially by means of a switch 5 thus feeding the thrust coil 4 with driving current. Upon provision of a coil abnormality signal from a section controller 7, output from a converter 17 in that section is blocked through a coil switch controller 12. The linear motor vehicle 1 is decelerated through a protector 13 before it enters into the faulty section and passes through the faulty section with low speed thus suppressing impact.</p> |
