F1: Travel to fixed stop
6.2 General functionality
Basic Functions
308 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Function abort
A function abort can be triggered by the following events:
• Emergency stop:
- With an 840D control, the NC and drive are brought into a no-current condition for "Emergency Stop", i.e.
the PLC must react.
- With an 840Di control, the NC and drive are brought into a no-current condition for Emergency Stop, i.e.
the PLC must react.
• The fixed stop monitoring function responds in the case of:
- Exit from fixed stop position by axis
- Tool breakage
- Pulse disable
6.2.3 Block search response
Block search with calculation
The response is as follows:
• If the target block is located in a program section in which the axis must stop at a fixed limit, then the fixed
stop is approached if it has not yet been reached.
• If the target block is located in the program section in which the axis must not stop at a fixed limit, then the
axis leaves the fixed stop if it is still positioned there.
• If the desired fixed stop status is reached, alarm message 10208 "press NC Start to continue the program" is
output. The program can be continued after pressing NC Start to acknowledge.
• At the start of the target block, FXST[x] and FXSW[x] are set to the same value as they would have during
normal program processing.
Block search without calculation
The commands FXS, FXST and FXSW are ignored.
FOC
FOCON/FOCOF is activated modally. It is already active in the approach block.
CAUTION
Make sure that after canceling the function
"Travel to fixed stop" by "Emergency Stop," no dangerous machine situation
(MD37002 $MA_FIXED_STOP_CONTROL e.g. canceling pulse disable) can occur.
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