| 摘要 |
PURPOSE:To reduce the number of motors for driving spare auxiliary machine and starter boards by providing an auxiliary machine both-side shaft drive motor for simultaneously driving A and B type auxiliary machine, one-side shaft drive motors for driving other A and B type auxiliary machines. CONSTITUTION:When A type auxiliary machine 4, B type auxiliary machine 6 or both-side shaft motor 9 malfunctions in the state that the auxiliary machines 4, 6 are used normal auxiliary machines by the both-side shaft motor 9, the malfunction signal is transmitted from a starter board 13 through control wires 15, 16 to starter boards 11, 12. Thus, the boards 11, 12 automatically start one- side shaft motors 7, 8 to operate A and B type auxiliary machines 3, 5, thereby backing up the auxiliary machines 4, 6. In this manner, the quantity of the motors for driving spare auxiliary machines and starter boards can be reduced. |
