Support door emergency alarm input to setup as “ normally close ” ( nc ) or “ normally open ” ( no ) connection . default is set as no 支持门的报警点输入有”常开”和”常闭”的设置.默认设置为”常开”
It has one external alarm , and the alarm can be set to 5 states : always open , always open locked , always closed , always closed locked and forbidden 有一路外部告警，可设置成常开常开锁定常闭常闭锁定或禁用。
A complete normally - closed integrated monitor and control system for inclined land lifting has developed adopting siemens series s7 - 200 plc 摘要采用西门子s7 - 200系列plc控制，研制了一种常闭式斜井提升综合监控系统。
Always open means that external alarm signal is in the open state , and it generates alarm when closed . always closed means it is on the contrary “常开”表示在正常状态下外部警信号为开路状态，闭合产生告警“常闭”则反之。
Always open means in normal state , external alarm signal is open , if closed , the controller will give an alarm ; always closed is on the contrary “常开”表示在正常状态下外部警信号为开路状态，闭合则产生告警“常闭”则反之。
Annotation : always open means in normal state , external alarm signal is open , if closed , the controller will give an alarm ; always closed is on the contrary 注： “外部告警模式” ： “常开”表示在正常状态下外部警信号为开路状态，闭合产生告警“常闭”则反之。
External alarm mode : always open means in normal state , external alarm signal is open , if closed , the controller will give an alarm ; always closed is on the contrary “外部告警模式” ： “常开”表示在正常状态下外部警信号为开路状态，闭合则产生告警“常闭”则反之。
2 external alarm mode : always open means in normal state , external alarm signal is open , if closed , the controller will give an alarm ; always closed is on the contrary “外部告警模式” ： “常开”表示在正常状态下外部警信号为开路状态，闭合则产生告警“常闭”则反之。
Annotation : external alarm mode : always open means in normal state , external alarm signal is open , if closed , the controller will give an alarm ; always closed is on the contrary 注： “外部告警模式” ： “常开”表示在正常状态下外部警信号为开路状态，闭合产生告警“常闭”则反之。
3 foot is power source terminal at eight - phase left - hand end , they are zero curve 、 live wire 、 ground wire or “ _ ” 、 “ + ” and ground , 5 、 6 foot are lose electric alarming fan - out ( replay normal close point , the equipment cut - out after losing electricity 左端8位端子的1 、 2 、 3脚为电源端子，分别为零、火、地或“ ” “ ” 、地； 5 、 6脚为失电告警输出端（继电器常闭点，装置失电后断开） 。
