| 摘要 |
<p>PURPOSE:To effectively manage an operatorless conveying vehicle by providing nonvolatile memory means for storing the hysteresis content of an error generated during an operation. CONSTITUTION:A controller 3 of an operatorless conveying vehicle 1 has memory means A including a nonvolatile memory for storing an error content during the operation of the vehicle, display means B for displaying the content stored in the memory means by producing the content, and display-discriminating means C for discriminating and instructing the display content by the means B. Thus, even if the power source of a battery is eliminated, the error content during the operation is not erased, but the hysteresis content of the error at every vehicle can be displayed to effectively manage the vehicle.</p> |
