01.99 2 Operator Interface
© Siemens AG 1999 All Rights Reserved 6FC5198-6AA60-0BP1
SINUMERIK 840C, OEM Version for Windows (BA)
2-17
When you press the SPINDLE STOP key:
• The spindle speed is reduced down to zero
• The associated LED lights up as soon as SPINDLE STOP is accepted by
the control, for example also with M05 (see Programming Guide).
Example for use of SPINDLE STOP
• To effect tool change
• To enter S, T, H, M functions while setting up (overstoring)
When you press the "Spindle start" key:
• The spindle is enabled. If the spindle has been stopped with SPINDLE
STOP in a program it can be started again with SPINDLE START.
• The associated LED lights up as soon as "Spindle start" is accepted by the
control.
Machine manufacturer
The following is defined in the machine data or setting data:
- Max. spindle speed
- Values for the spindle speed override
(see machine-tool manufacturer’s instructions)
Feedrate/rapid override
The rotary switch with 23 notched positions allows you to reduce or increase
the programmed feedrate value F (corresponds to 100%).
The set feedrate value F is indicated on the screen in %.
0% to 120% of the programmed feedrate.
The 100% value is not exceeded in rapid traverse.
0%, 1%, 2%, 4%, 6%, 8%, 10%, 20%, 30%, 40%, 50%,
60%, 70%, 75%, 80%, 85%, 90%, 95%, 100%, 105%,
110%, 115%, 120%
Spindle stop
Spindle start
Feedrate control
Setting range:
Step size:
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