| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive control system for conveyor having a plurality of driving systems, which can reduce the occurrence of accident such as a system stop. SOLUTION: Two driving devices 20A and 20B are arranged in a travelling route 10 of a trolley chain conveyor, and two take-up devices 28A and 28B are also arranged there. For example, when a take-up position (tensile rate) of one of the take-up devices exceeds an allowable range during the synchronous operation control for making the chain travel at a low speed, the driving speed of the driving device 20B is changed for control so that the take-up position exists within the allowable range. COPYRIGHT: (C)2004,JPO
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