Spindle Control - Siemens SINUMERIK 840Di sl Operating Manual

2
01/2008

2.2.4 Spindle control

Spindle Stop
*
Spindle Start
Machine manufacturer
© Siemens AG 2008 All rights reserved.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition
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 on main screen).
Control range:
50% to 120% of programmed spindle speed
Increment:
5% between latch positions
Spindle stop
When you press the "Spindle stop" key:
The spindle is decelerated down to zero speed and
The associated LED lights up as soon as "Spindle stop" is reached.
Example:
To change a tool
To enter S, T, H, M functions during setup
Spindle start
When you press the "Spindle start" key:
The spindle speed is accelerated to the value defined in the program
and
The associated LED lights up as soon as "Spindle start" has been
accepted by the control.
• The specified increment and the control range apply to standard
machine data (MD). These MD can be edited by the machine-tool
manufacturer to suit the specific application.
• The maximum spindle speed and the values for the spindle speed
override position are defined in the machine data and setting data
(see information supplied by the machine-tool manufacturer).
Operator Components/Operating Sequences
2.2 Machine control panel (MCP)
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