11.4.1. 可编程序控制器(PLC)系统
关于可编程序控制器(PLC)系统、部件与软件的其他信息,请参见“可编程序控制器
(PLC)手册”。
概述
PLC(可编程序控制器)控制起重机的大部分功能:行走、起升、吊具、故障显示、安全系统等。
约有300台不同的设备产生数据,由可编程序控制器(PLC)处理,相应地控制起重机的运行。可编
程序控制器(PLC)的主要部件之间的数据传输主要通过可编程序控制器(PLC)母线进行。
可编程序控制器(PLC)的主要部件的安装位置如下:
页码 篇 日期 名称
30/101 EH11-0019 00-08-08 操作手册
位置 名称
1 司机室
所有侧边操作台控制通过位于可旋转的司机座椅下面的I/O模块与可编程序控制器(PLC)连接。
I/O端子盒包括输入与输出卡。
注意!可编程序控制器(PLC)接线应从座椅下的开口处,每年检查两次。打开座椅底部前面的锁
定螺栓,可使座椅倾斜。
可编程序控制器(PLC )- 由图形界面、触摸式、带背后照明的菜单控制液晶显示器(LCD)显示
。无故障时,显示屏显示正常屏幕:日期、时间与大车、起升与小车的速度。
2 小车箱
检测小车位置与速度的若干个输入与输出卡。
3 电气房
可编程序控制器(PLC)的CPU(中央处理器)与所有相关设备(输入/输出卡、记数模块、显示屏
等)位于电气房内。
打印机自动打印出有关所发生故障的报告,包括日期/时间等信息。
显示屏的用法
轮胎式集装箱龙门起重机上装有两个一模一样的可编程序控制器(PLC)显示屏,一个位于司机室
内,另一个位于电气房内。
关于显示屏的用法,请参见“可编程序控制器(PLC)手册”之说明。
故障显示
根据所发生的故障的轻重程度,故障以若干种方式显示。故障指示器包括信号灯、司机室内的警报
器、显示屏上的提示,以及电气房内打印出来的故障报告。
当触摸屏显示故障时,该信息将一直保留在屏幕上,直到以故障窗口上的“确认”(ACK)按扭确
认为止。注意,清除报警并不会自行消除故障,这只是向可编程序控制器(PLC)表明,操作员已
知道故障。
!大部分故障通过以下顺序复位:
下按“停止起重机”、“确认”、“启动起重机”按钮
11.4.5. PLC system
See additional information about PLC system, components and software
from separate PLC MANUAL.
General
PLC(ProgrammableLogicController)controlsmostof functionsof thecrane; driving,hoisting,
spreader, fault indication, safety systems etc. Roughly 300 various equipment produces data
to be handled by PLC, which controls operations accordingly. Data transfer between PLC’s
main components is done mainly via PLC- -bus cable.
PLC’s main components are located as follows.
1
2
3
Page Group Date Description
30/99 EH11- -0019 00- -08- -08 Operator’s manual
Pos Description
1 Driver’s cabin
All sidepanel controls are wired to the PLC through
I/O terminal box located under the turnable driver’s seat. I/O terminal box
contains input-- and output cards.
NOTE! PLC wiring’s fastening should be checked twice a year from the hole
under the seat. Seat can be tilted by opening locking bolts at the front of the
base of the seat.
PLC--display is graphical,touch sensitive, menu controlled LCD--display with
backlight. While no faults exist, the display shows the normal screen: date,
time and speeds of gantry, hoist and trolley.
2 Trolley box
Several input and output cards for detecting trolley position and speed.
3 EE- -house
PLC’s CPU (Central Processing Unit) with all related equipment (input/out-
put cards, counter module, display etc) are located in the EE--house.
Printer automatically prints out report of occured fault, including date/time
information.
Display unit usage
Two identical PLC displays are installed to the RTG; one in the driver’s cab and second in the
EE--house.
See instructions of PLC --display usage from PLC MANUAL.
Fault indication
Faultsareindicatedinseveralways,accordingtotheseverityofoccurredfault. Faultindicators
are: signal lights, alarm buzzer in the cabin, display notifications and fault report print outs in
the EE--house.
When Touch panel indicates fault, it will stay on the display until it is acknowledged by
ACK--buttononFaultwindow.Notice thatAlarmClearingwill notremove faultitself, itonly
indicates the PLC that fault has been recogniced by the operator.
! MOST OF THE FAULTS ARE RESETTED BY FOLLOWING SEQUENCE:
PRESS ’CRANE OFF’ , ’ACK’ , ’CRANE ON’