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恒达富士电梯

奥的斯ACD系列电梯DLM故障的分析与处理

时间:2018-08-17 10:34来源:新电梯中国 作者:龚玉山
  新电梯中国网讯(微信号:新电梯、新电梯网)

DLM故障的定义
ACD2/3/4电梯GECB板OTIS servicetool M-1-1-1-1提示DLM:Door Lock Monitor门锁监控,
电梯处于IDL状态下,没有开门指令时,轿门DW信号断开。
电梯的厅轿门回路接通,DW DFC信号均正常接通,但是检测到DOL信号异常,此故障会出现,
DLM故障与DOL  ALWAYS ON稍有区别,区别在与DOL的信号接通和断开处于不稳定状态,
有时DOL  ALWAYS ON机房ERO操作故障能恢复,电梯能转入正常运行。
但DLM故障在机房ERO 不能恢复。
故障出现后我们的同事不知所措,无从下手予以解决。小编分析一下,希望给大家带来帮助

DLM故障现象
机房紧急电动运行正常,轿顶检修运行正常,电梯转到正常,电梯不能正常运行,OTIS service tool操作器显示DLM

可能原因和检查
状态DW信号正常
状态DFC信号正常
串行通讯信号LC1  LC2的连接,串行通讯所提供的+24VDC电源及RTN电压是否DC24V,
控制柜轿厢串行通讯连接接插件是否松动,
终端抗干扰板是否损坏,
DOL信号布线接插件连接是否可靠,
门机损坏异常没有DOL 信号输出。






 

DLM故障的复位
此故障的复位,必须在正常模式下轿内或轿顶使用(SERVICE TOOL)服务工具平层位置正常开启关闭厅轿门一次,验证一下门锁触点和开门到位DOL信号,才能转到正常运行,DLM故障才会消失。
 

  Fault analysis and troubleshooting of OTIS ACD series DLM and 0400 RSL parity

  It’s reported that every OTIS elevator equipped with control panel LCB-II TCBC GECB is likely to meet with the fault of 0400 RSL parity when its service life is long. The serial communication chain with a pair of G, for group control communication chain in the parallel elevator floor, would link to the outbound call and the H, for hall communication chain, would connect to the information of the certain floor. When the fault of 0400 RSL parity appears, the mentioned 2 communication chains must be checked and tested on the control station plate and the terminal plate until the fault is eliminated.

  The recovery of DLM would be achieved after opening and closing the car door in the normal state and try the door contact and DOL signal. The DLM would be eliminated when it shows a trouble-free running.

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