B–63610EN/01
4. DESCRIPTION OF PARAMETERS
325
7621
Maximum allowable speed for the tool rotation axis (polygon synchronization axis)
[Data type] Word
[Unit of data] rpm
[Valid data range] For polygonal turning using servo motors:
0 to 1.2 10
8
set value of the parameter No.7620
For polygon turning with two spindles:
Set a value between 0 and 32767, but which does not exceed the
maximum allowable speed, as determined by the performance of the
second spindle and other mechanical factors.
This parameter sets the maximum allowable speed of the tool rotation axis
(polygon synchronization axis).
If the speed of the tool rotation axis (polygon synchronization axis)
exceeds the specified maximum allowable speed during polygon turning,
the speed is clamped at the maximum allowable speed. When the speed
is clamped at a maximum allowable speed, however, synchronization
between the spindle and tool rotation axis (polygon synchronization axis)
is lost. And, when the speed is clamped, P/S alarm No.5018 is issued.
7631
Allowable spindle speed deviation level in spindle–spindle polygon turning
[Data type] Byte
[Unit of data] min
–1
[Valid data range] 0 to 255
[Standard setting value] 1 to 10
This parameter sets the allowable level of deviation between the actual
speed and specified speed of each spindle in spindle–spindle polygon
turning. The value set with this parameter is used for both the master axis
and polygon synchronization axis.
7632
Steady state confirmation time duration in spindle polygon turning
[Data type] Word
[Unit of data] ms
[Valid data range] 0 to 32767
This parameter sets the duration required to confirm that both spindles
have reached their specified speeds in spindle–spindle polygon turning.
If the state where the speed of each spindle is within the range set with
parameter No.7631, and has lasted at least for the duration specified with
parameter No.7632, the spindle polygon speed arrival signal PSAR (bit
2 of F0063) is set to 1.