Mitsubishi Electric MELDAS C6 Programming Manual page 101

10. Spindle Functions
Calculating the spindle synchronization phase shift amount and requesting phase offset
The spindle phase shift amount calculation function obtains and saves the phase difference of the
basic spindle and synchronous spindle by turning the PLC signal ON during spindle
synchronization. When calculating the spindle phase shift, the synchronous spindle can be rotated
with the handle, so the relation of the phases between the spindles can also be adjusted visually.
If the spindle phase synchronization control signal is input while the phase offset request signal
(SSPHF) is ON, the phases will be aligned using the position shifted by the saved phase shift
amount as a reference.
This makes aligning of the phases easier when grasping the material that the shape of one end
differ from another end.
Device No.
Y435
Y436
R55
R59
Phase shift calculation
request (Y435)
Spindle synchronous
control (Y436)
In spindle synchronous
control (X42A)
Spindle synchronization
complete (X42B)
(Note 4) The phases cannot be aligned while calculating the phase shift.
(Note 5) The synchronous spindle cannot be rotated with the handle when the manual operation
mode is set to the handle mode.
Signal name Abbrev.
Phase shift SSPHM
calculation
request
Phase offset SSPHF
request
Phase –
difference
output
Phase offset –
data
Spindle synchronous
control ON
Phase shift calculation
request ON
93
10.8 Spindle synchronization control II
Explanation
If spindle synchronization is carried out while
this signal is ON, the phase difference of the
basic spindle and synchronous spindle will be
obtained and saved.
If spindle phase synchronization is carried out
while this signal is ON, the phases will be
aligned using the position shifted by the saved
phase shift amount as a basic position.
The delay of the synchronous spindle in
respect to the basic spindle is output.
Unit: 360°/4096
(Note 1) If either the basic spindle or
synchronous spindle has not
passed through the Z phase, etc.,
and the phase cannot be
calculated, –1 will be output.
(Note 2) This data is output only while
calculating the phase shift or during
spindle phase synchronization.
The phase difference saved with phase shift
calculation is output.
Unit: 360°/4096
(Note 3) This data is output only during
spindle synchronous control.
The phase difference in this interval is
saved.
(The synchronous spindle can be
controlled with the handle.)
Spindle synchronous
control OFF
Phase shift calculation
request OFF