Operator Components/Operating Sequences
2.3 Machine control panel keys
2.3.4 Spindle control
in a negative direction with the "-" key
Move axis at rapid traverse (fastest speed).
− The specified increments and control range apply to standard
− Increments and control range can be modified by the machine tool
manufacturer to suit specific applications.
− Feedrate/rapid traverse and the values for the feedrate override
switch settings (if the feedrate override switch is also operative in
rapid traverse) are defined in a machine data.
Please refer to the information and specifications provided by the
Switch between the workpiece coordinate system (WCS = work) and
machine coordinate system (MCS = machine).
Spindle override (spindle speed override switch)
• The rotary switch with latch positions allows you to increase or
decrease the programmed spindle speed "S" (equivalent to 100%).
• The set spindle speed value "S" is output as an absolute value and
a percentage in the "Spindles" display (vertical softkey in basic
50% to 120% of programmed spindle speed
5% between latch positions
SINUMERIK 840D/810D Operator's Guide HMI Embedded (BEM) – 03.04 Edition
Siemens AG, 2004. All rights reserved