| 摘要 |
A variable speed conveyor drive system, which is programmable to suit various operating conditions; comprises a master drive unit (7) having a drive motor (16), at least one slave drive unit (8-10, 14, 15) having a drive motor (16), a monitor and control unit (23), a control loop (24, 26, 27, 37, 58) from the master drive unit (7) to the monitor and control unit (23), a multiplexer (25) with a master outlet (26) and a slave outlet (27) for each slave drive unit (8-10, 14, 15), the master multiplexer outlet (27) being connected to the master drive unit (7) to form a part of the control loop (24, 26, 27, 37, 58), whereby all motors (16) share the load at a pre-programmed level at any speed of operation, and each slave multiplexer outlet (27) having an individually adjustable and programmable time delay operable both before start-up and during running of the conveyor (1). |
