Gear change (G112)
Syntax: | |
G112 <spindle_name>. | non-modal |
G112 | Gear change |
<spindle_name>.. | Gear data block consisting of the spindle name as described in the channel parameter list and number of the data block |
As opposed to gear changing via M40-45 in which the mechanical gear change operation is also performed implicitly, programming G112 together with the S word only triggers the update of the spindle gear data (dynamic values) of one step.
The user must explicitly program the mechanical changing of the correct gear stage, e.g. by self-defined M functions or as mentioned above using M40-45.
Notice | |
The spindle must be at standstill before the spindle gear data are switched over. This can be achieved in the previous NC block by programming a spindle stop (M5) or a spindle positioning (M19…) |
Programming Example
Gear change (G112)