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我矿1台3m双简提升机用于竖井双罐笼提升。电控制提升方向回路，出厂时采用4只JZ11-62JP／5记忆中间继电器，它们的触点分别连接在错向保护、高压换向器、减速、限速、二级制动解除、精针指示投入、停车和提升方向回路以。控制原理如图1所示。以前，3m提升机运行时经常发生下列
I mine a 3m Shuangjian hoist for the two-tank shaft hoist. Electric control to enhance the direction of the circuit, the factory using four JZ11-62JP / 5 memory relay, their contacts were connected to the wrong protection, high-voltage commutator, deceleration, speed, secondary brake release, needle instructions Put in, stop and lift the direction loop. Control principle shown in Figure 1. In the past, the following occurred frequently during 3m hoist operation