| 摘要 |
A motor speed control for a plurality of machines operating in parallel. In the inspection of glass containers, a group of containers are split into individual lines, three for example. Each line is fed to a separate inspection machine where identical inspection functions are performed. This invention is a control system for the electric motor drives of the inspection machines. The speed of all of the machines is monitored, and whenever any machine stops or falls below a minimum speed, the remaining machines are automatically increased in speed to an emergency speed. The remaining machines can operate fast enough to inspect all of the glass containers, which, under these circumstances, are divided into only two lines instead of three. |
