1 Operator’s Panel
the operator’s messages of PLC are displayed. The date and time display can also be found in this line.
In the third line the name of the active general displaying area and behind the number of programs indicated for running can be read. In case of manual data input mode, the number of programs belonging to the manual data input can be seen here, otherwise the number of programs indicated for automatic mode is displayed.
1.1.3 Indication of Ready Status of Control
The light of the LED "NC ready" indicates the
The LED will turn dark
–upon
–if the control breaks down,
–if the monitoring program (watchdog) of the control detects a malfunctioning or a fatal error.
If the LED is dark, the control is out of service!
1.2 Machine Control Board
The operation mode and functional state of the machine must be capable of being changed and the machining must be capable of being started and stopped. The buttons and switches influencing the function of the machine are called machine control items. The machine control items can be operated
–partly after selecting the appropriate general displaying area by means of softkeys on NC keyboard, or
–by means of buttons, switches installed separately.
A summary of the state of control items, the active mode ect. appears if the CONTROL PANEL screen is selected.
The machine control panel must contain primarily those operating items, that cannot be accessed from the data input keyboard by means of softkeys (e.g. START, STOP), or their access is hard. Certain items of the machine keyboard can make the intervention from data input keyboard through softkeys unnecessary. Of course the developed machine keyboard can also activate all, from data input keyboard through softkeys attainable machine control items. The case, whether an operating item is to be accessed from softkeys or only from machine control panel is determined by the machine tool builder as a function of the developed machine keyboard, so for details turn to him for an information material.
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