| 摘要 |
<p>PCT No. PCT/GB82/00260 Sec. 371 Date May 12, 1983 Sec. 102(e) Date May 12, 1983 PCT Filed Aug. 31, 1982 PCT Pub. No. WO83/01131 PCT Pub. Date Mar. 31, 1983.A control system for eddy current coupling drive for armoured face conveyors wherein the systems controls a number of eddy current drives via a pair of power supply lines and a single pilot line. A main contactor controlled by a relay is held closed by contact of a pilot relay which is energized only if relay contacts in individual control units for each drive remain closed. These last mentioned contacts open if certain operating conditions are not met.</p> |
