在接通电源开关JD(也称接地开关)，按下T-P上的起动按钮START(起动是一个点操作动作，T-P表响应后即可松开)，T-P表的2端子输入低电平，触发T-P进入起动程序端子6、7输出低电平，使继电器J1、J2获得工作运行电压。J1的常开触点接通，电子调速控制器DT(ESD5500E)得电(F端口获得工作运行电压)；同时J2的常开触点接通，使起动继电器RS1线圈得电吸合，RS1常开触点接通，起动机吸合继电器J线圈得电，接通起动电动机M的电磁开关及其电路(起动机吸合继电器J的常开触点开关1)，起动电动机运转，带动机起动。转速传感器从机飞轮上读取转速信号，送至电子调速控制器DT、DT收到机转速信号后开始工作运行，将执行器输出轴转至最大供油位置(该机组电子转速控制器ESD5500E是通过P型喷油泵的RSV机械调速器实现转速控制的，其执行机构YA与机械调速器停机手柄连接)。此时DT的G和M端子通过延时继电器KT1的常闭触点接通、M端子输人低电平，DT在起动后工作运行在怠速状态。当机的转速超过300r/min时，T-P表6端输出高电平，J2失电断开其常开触点，起动继电器RS1失电断开，起动电动机吸合继电器J失电，起动机与机飞轮分离，机起动成功，进入怠速运行。起动成功后，T-P表的端子5送出低电平，继电器KA6得电，乙常歼触点接通，触发延时继电器KT1动作，经过设定的延迟时间后，其常闭触点断开，DT的从端严失去低电平，使机急速运行一定时间后进入全速工作运行状态，A、B端送出额定转速工作运行电流驱动电磁执行器YA,将机油门拉杆置于全速位置。当需要微调机转速时，可调整控制屏面板上的转速微调电位器RP3，其调整范围为±100r/min。同时，KT1的常开触点接通，使7端子可靠的维持低电平，以保证DT的电源供电可靠。在起动过程中，机引擎控制器T-P根据所设定的延时时间，有一个延时监控阶段，在此阶段中，会分析判断转速和机油压力的建立过程，避免误操作(如起动开始时不会因机油压力低而紧急停机)。完成后转入运行阶段。当起动失败后，系统会自己控制循环进行三次起动，若三次起动不成功，系统报警，不再进行起动操作。此时，应检测分析不能起动的原因。
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