Siemens SINUMERIK 840D Function Manual

Detailed description
2.2 Functions
Basic logic functions: Various NC/PLC interface signals and functions (A2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
31
Accuracy
If the programmed end point does not lie exactly on the involute defined by the starting point,
interpolation takes place between the two involutes defined by the starting and end points
(see illustration below).
The maximum deviation of the end point is determined by the machine data:
MD21015 $MC_INVOLUTE_RADIUS_DELTA(end point monitoring for involute)
5
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Figure 2-7 MD21015 specifies the max. permissible deviation

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB