Speeds And Setpoint Adjustment For Spindle - Siemens SINUMERIK 840Di sl Commissioning Manual

Gear stage 2:
One encoder increment corresponds to 1,3733 internal increments.
One encoder increment corresponds to 0,0013733 degrees (highest possible positioning
resolution).
11.5.24

Speeds and setpoint adjustment for spindle

Speeds, gear stages
In SINUMERIK 840Di sl, data for five gear stages are implemented. These stages are
defined by a minimum and maximum speed for the stage itself and by a minimum and
maximum speed for the automatic gear stage changeover.
A new set gear stage is output only if the new programmed speed cannot be traversed in the
current gear stage. For the sake of simplification, the oscillation times for gear stage
changeovers can be specified directly in the NC; the oscillation function must otherwise be
implemented in the PLC. The oscillation function is initiated via the PLC.
Figure 11-27 Example for speed ranges for automatic gear stage selection (M40)
Manual
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
NC Commissioning with HMI Advanced
11.5 Axes and spindles
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