HEIDENHAIN TNC 620 Programming Station, User Manual

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Special functions
11.7 Pulsing spindle speed FUNCTION S-PULSE
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HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
11.7 Pulsing spindle speed
FUNCTION S-PULSE
Program pulsing spindle speed
Application
Refer to your machine manual.
The behavior of this function varies depending on the
respective machine.
Using the
S-PULSE FUNCTION
you can program a pulsing spindle
speed, when operating at a constant spindle speed.
You can define the duration of a vibration (period length) using the
P-TIME input value or a speed change in percent using the the
SCALE input value. The spindle speed changes in a sinusoidal form
around the target value.
Procedure
Proceed as follows for the definition:
Show the soft-key row with special functions
Select the menu for defining various conversational
functions
Press the
FUNCTION SPINDLE
soft key
Press the
SPINDLE-PULSE
soft key
Define period length P-TIME
Define speed change SCALE
The control never exceeds a programmed speed limit.
The spindle speed is maintained until the sinusoidal
curve of the
S-PULSE FUNCTION
falls below the
maximum speed once more.
NC block
N30 FUNCTION S-PULSE P-TIME10
SCALE5*
Symbols
In the status bar the symbol indicates the condition of the pulsing
shaft speed:
Icon Function
Pulsing spindle speed active