Programming manual
CNC 8055
CNC 8055i
PATH CONTROL
6.
·M· & ·EN· MODELS
SOFT: V02.2X
·107·
Tangential control (G45)
6.16.1 Considerations about the G45 function
Tangential control, G45, is optional. It can only be executed in the main channel and is compatible
with:
• Tool radius and length compensation (G40, 41, 42, 43, 44).
• Mirror image (G10, 11, 12, 13 14).
• Gantry axes , including the gantry axis associated with the tangential rotary axis.
The maximum feedrate while orienting the tangential axis is defined by machine parameter
MAXFEED for that axis.
While tangential control is active, tool inspection is also possible. When accessing tool inspection,
the tangential control is deactivated, the axes are free and when quitting tool inspection, tangential
control may be activated again.
While in JOG mode, tangential control may be activated in MDI mode and the axes may be moved
by programming blocks in MDI.
Tangential control is canceled when jogging the axes with the jog keys (not in MDI). Once the
movement is over, tangential control is recovered.
Likewise, the following is NOT possible:
• To define as tangential axis, one of the plane axes, the longitudinal axis or any other axis which
is not rotary.
• To jog the tangential axis in JOG mode or by program using another G code while tangential
control is active.
• Inclined planes.
The TANGAN variable is read-only, from the CNC, PLC and DNC, associated with function G45.
It indicates the angular position, in degrees, referred to the programmed path.
Also, general logic output TANGACT (M5558) indicates to the PLC that function G45 is active.
Function G45 is modal and is canceled when executing G45 alone (without defining the axis), on
power-up, after executing an M02 or M30 or after an EMERGENCY or RESET.
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