622 HEIDENHAIN Technical Manual MANUALplus 620
6.2.3 Returning to the contour/block scan
With the MANUALplus 620 you can resume an interrupted NC program at the
desired block number by scanning the previous blocks (please refer to the
User’s Manual).
Moving the axes:
After an NC STOP the axes are moved to the last interpolated position (stop
position).
During a block scan, they are moved to the calculated restore position.
Markers inform the PLC about individual conditions during mid-program
startup (block scan). Depending on these markers you can enable certain
functions such as the axis-direction buttons for MANUAL TRAVERSE.
NN_ChnProgManTraverse is set if the MANUAL TRAVERSE soft key is pressed.
NN_ChnProgReturnContour is set if the RESTORE POSITION soft key is
pressed ("Return to Contour").
NN_ChnBlockScan is set if the BLOCK SCAN TO BLOCK N soft key is pressed.
NN ChnBlockScan is reset if the RESTORE POSITION or INTERNAL STOP soft key
is pressed.
Settings in the configuration editor MP number
Axes
ParameterSets
[Key name of the machining channel]
CfgFeedLimits
restoreFeed 400309
Channels
ChannelSettings
[Key name of the machining channel]
CfgChannelAxes
restoreAxis 200305
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