4 Machine 01.99
6FC5198-6AA60-0BP1 © Siemens AG 1999 All Rights Reserved
4-84 SINUMERIK 840C, OEM Version for Windows (BA)
4.3.10 Extended stop and retract
Order number option
Extended stop and retract is an option.
The EXTENDED STOP AND RETRACT function is used to protect the
workpiece and machine.
Responses such as approaching a programmable retraction position, stopping
axes or the output of hardware signals can be triggered to detect certain faults.
Machine manufacturer
The function must be configured by the machine-tool manufacturer. It is, for
example, dependent on the drives used.
Please consult the machine manufacturer’s documentation.
Activation or deactivation of the monitoring and the response can be
programmed via G commands.
Press the STOP/RETRACT softkey to display the function-specific G
functions.
This is only a display. It is not possible to enter G functions here.
The G functions:
• G420: Switch off; switch off "Extended stop and retract", all or
selectively for axes and/or spindles.
• G421 Switch on; Activate monitoring sources and enable
responses.
• G422 Configure generator mode
• G423 Configure stopping by control
• G424 Configure stopping by drive
• G425 Configure retraction by control
• G426 Configure retraction by drive
Machine manufacturer
The EXTENDED STOP AND RETRACT function must be preconfigured.
Please consult the machine manufacturer’s documentation.
Stop/
retract
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