HEIDENHAIN TNC 620 User Manual page 167

Setup | Switching on/off
Checking the axis position
This section applies only to machine axes with EnDat
encoders.
If the actual axis position after the machine has been switched on
does not match the shutdown position, the control displays a pop-up
window.
Check the axis position of the affected axis
If the current axis position matches that proposed in the display,
confirm with YES
Danger of collision!
Failure to notice deviations between the actual axis positions
and those expected by the control (saved at shutdown) can
lead to undesirable and unexpected axis movements. There is
risk of collision during the reference run of further axes and all
subsequent movements!
Check the axis positions
Only confirm the pop-up window with YES if the axis positions
match
Despite confirmation, at first only move the axis carefully
If there are discrepancies or you have any doubts, contact your
machine tool builder
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022
NOTICE
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