·208·
Installation manual
CNC 8055
CNC 8055i
6.
MACHINE PARAMETERS
SOFT: V02.2X
Axis parameters
SYNCHRO (P3)
It is possible to couple or decouple each one of the axes by PLC program using the logic inputs of
the CNC: "SYNCHRO1" through "SYNCHRO7". It is possible to couple CNC axes (main channel)
or PLC axes.
This parameter, set for the axis coupled as slave, indicates which axis will be its master.
DROAXIS (P4)
Indicates whether it is a normal axis or it only works as a Digital Read Out
LIMIT+ (P5) LIMIT - (P6)
They set the travel limits for the axis (positive and negative). Each one of them indicates the distance
from machine reference zero to the relevant travel limit.
On linear axes, if both parameters are set to 0, the travel limits will be ignored.
On the rotary axes, act as follows:
• When both parameters are set to "0", the axis may be moved indefinitely in any direction (rotary
tables, indexers, etc.)
• When working with positioning axes and Hirth axes, try to program in incremental coordinates
to avoid mistakes. For example, C axis with P5=0, P6=720 and the positioning axis in 700 (340
on the screen), when programming G90 C10, the CNC tries to move the axis via the shortest
path (701, 702, etc.) but it will issue an error message for overrunning the travel limits.
• If the travel of positioning axes and hirth axes is limited to less than a turn, they cannot move
via the shortest path.
Example:
If the X and U axes form a Gantry pair, the U axis being the slave axis, program as follows:
Parameter GANTRY (P2) for the X axis = 0
Parameter GANTRY (P2) for U axis = 1 (associated with X axis)
This way, When programming an X axis move, the U axis will also move the same distance.
Value Meaning Value Meaning
0 None. 5 With the V axis.
1 With the X axis. 6 With the W axis.
2 With the Y axis. 7 With the A axis.
3 With the Z axis. 8 With the B axis.
4 With the U axis. 9 With the C axis.
Default value: 0
Example:
To couple the V axis with the X axis, program as follows:
Parameter SYNCHRO (P3) of the X axis = 0
Parameter SYNCHRO (P3) of the V axis = 1 (associated with the X axis)
When the PLC activates the logic input "SYNCHRO" of the CNC corresponding to the V axis, this axis will
be electronically coupled to the X axis.
Value Meaning
EZ It is a normal axis.
YES It only works as a Digital Read Out.
Default value: EZ
Possible values
Within ±99999.9999 degrees or millimeters.
Within ±3937.00787 inches.
Default value: For LIMIT+ (P5) = 8000 mm.
For LIMIT- (P6) = -8000 mm.
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