·128·
Programming manual
CNC 8055
CNC 8055i
7.
ADDITIONAL PREPARATORY FUNCTIONS
·M· & ·EN· MODELS
SOFT: V02.2X
Electronic axis coupling/uncoupling
7.8.1 Electronic axis coupling, slaving, (G77)
Function G77 allows the selection of both the master axis and the slaved axis (axes). The
programming format is as follows :
G77 <Axis 1> <Axis 2> <Axis 3> <Axis 4> <Axis 5>
Where <Axis 2>, <Axis 3>, <Axis 4> and <Axis 5> will indicate the axes to be coupled to <Axis
1>. You have to define <Axis 1> and <Axis 2>, the programming of the rest of the axes being
optional.
Example:
G77 X Y U ; Couples the Y and U axes to the X axis
The following rules should be observed when slaving axes electronically:
• You may use one or two different electronic couplings.
G77 X Y U ; Couples the Y and U axes to the X axis
G77 V Z ; Couples the Z axis to the V axis.
• You cannot couple one axis to two others at the same time.
G77 V Y ; Couples the Y axis to the V axis.
G77 X Y ; Gives an error signal, because the Y axis is coupled to the V axis.
• You can couple several axes to one in successive steps.
G77 X Z ; Couples the Z axis to the X axis.
G77 X U ; Couples the U axis to the X axis — Z U coupled to X.
G77 X Y ; Couples the Y axis to the X axis —Y Z U coupled to X.
• A pair of axes which are already coupled to each other cannot be coupled to another axis.
G77 Y U ; Couples the U axis to the Y axis.
G77 X Y ; Issues an error because Y axis is coupled to U axis.