Siemens SINUMERIK 840D sl Function Manual page 1200

Detailed description
2.12 Block descriptions
Figure 2-29 Star/delta changeover
For more detailed information about motor speed adjustments, please see:
References:
/FB1/Function Manual, Basic Functions; Spindles (S1);
Chapter "Configurable gear adjustments"
/FB1/Function Manual Basic functions; Velocities, Actual/Set point system, Regulation (G2)
Error message
If the parameter "SpindleIFNo" is not in the permissible range, the PLC is stopped with
output of interrupt message number 401702.
Special features
When parameterizing "TimeVal" with the value 0, a default value of 100 ms is used. With a
value of less than 50 ms, the minimum setting of 50 ms is applied.
The block must be called unconditionally.
Note
Switchover does not take place if the spindle is in an axis mode such as M70, SPOS.
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Basic logic functions: PLC Basic program powerline (P3 pl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0