2 
 
Setting Up the Machine  08/2005 
2.5 Tools 
 
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♥ Siemens AG, 2005. All rights reserved  
2-62  SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition 
    Lead  Thread pitch of a tap drill in mm/rev or thread intervals/'' 
 
Drill-¬ 
Diameter of the drill hole for a rotary drill 
    Plat.width   Plate width of a pin 
The plate width needs ShopTurn for calculating the groove cycles. 
    Plat.length   The plate length of a cutting tool or pin  
The plate length needs ShopTurn for displaying the tools during the 
program execution simulation. 
    H  The "H" column is displayed only if ISO dialects are set up. 
The number of the tool offset memory that belongs to the tool is 
displayed in the H column. 
    N  The number of teeth for a milling machine 
From this, the controller internally calculates the rotational feedrate if 
the feedrate is set in mm/tooth in the program. 
 
 
Angle of the tool tip for a drill 
When drilling, if you want to plunge as far as the shaft and not only as 
far as the tool tip, the controller takes the angle of the drill tip into 
consideration. 
 
 
 
Tool-specific functions 
 
 
 
Specification of the spindle’s direction of rotation 
The direction of the spindle’s rotation is relative to the tool spindle for 
powered tools (drilling and milling machines) and to the main or 
counter-spindle for turning tools. 
    If you are using a drilling or milling machine for "axial drilling" or "axial 
threading", the specified direction of rotation is relative to the cutting 
direction of the tool. The main spindle then rotates adapting to the 
tool. 
  
  Direction of spindle rotation to the right 
  Direction of spindle rotation to the left   
      Spindle not switched on