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Installation manual
CNC 8055
CNC 8055i
7.
CONCEPTS
SOFT: V02.2X
Main and second spindle
When requiring spindle oscillation control during a gear change, follow these steps:
1. Indicate, from the PLC, at CNC logic input "SANALOG" (R504) the value of the residual S
command to be applied to the spindle drive.
Also, set CNC logic input "PLCCNTL" (M5465) high to let the CNC know that from this moment
on, the PLC is the one setting the velocity command for the spindle.
2. From this instant on, the CNC outputs the spindle velocity command indicated by the PLC at
CNC logic input "SANALOG" (R504).
If the PLC changes the value of the "SANALOG" input, the CNC will update the velocity command
accordingly.
3. Once the operation has concluded, the CNC must recover the control of the spindle back from
the PLC. To do this, CNC logic input "PLCCNTL" (M5465) must be set low again.
Once the requested gear change is completed, the PLC must set the corresponding CNC logic input
"GEAR1" (M5458), "GEAR2" (M5459), "GEAR3" (M5460) or "GEAR4" (M5461) high.
Finally, the PLC will reactivate CNC general logic input "AUXEND" (M5016) indicating to the CNC
that it has finished executing the auxiliary function.
Automatic gear change when working with M19
Every time M19 is programmed, it is recommended that the corresponding spindle gear be selected.
If no gear is already selected, the CNC proceeds as follows:
It converts the speed indicated in degrees per minute atspindle parameter REFEED1 (P34) into
rpm.
It selects the spingle gear corresponding to those rpm.
The spindle gear cannot be changed when operating in M19. The gear must be selected beforehand.
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