| 摘要 |
PURPOSE:To generate an accident preventive warning even in a visitor information mode by providing a warning set switch and supplying a warning set signal to an accident preventive warning output means through the operation of the warning set switch instead of an accident prevention output from a mode switching means. CONSTITUTION:The warning set switch 18 and an OR gate 20 are provided. When an accident preventive warning is generated with a detection signal from an accident preventive line 7 while a visitor information mode is entered with the mode switching means, the warning set switch 18 is operated and then the warning set signal is supplied to an accident warning output means 9 and 10 with the warning set switch instead of the accident preventive output of the mode switching means, so that the accident preventive warning is generated in response to the detection signal received from the accident preventive line 7 even in the visitor information mode.
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