Siemens SINUMERIK 840D Installation And Startup Guide

6 Assi
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nin
g
Parameters to the Control and the PLC Pro
g
ram
6
03.96
6.9 Axes and spindles
6-119
 Siemens AG 2000 All Rights Reserved
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
M
IS_ROT_AX=0
ÍÍÍÍÍ
ÍÍÍÍÍ
Table
ENC_RESOL
G
DRIVE_ENC_RATIO_NUMERA No. of spindle rev.
DRIVE_ENC_RATIO_DENOM
=
No. of encoder rev.
ENC_IS_DIRECT=1
LEADSCREW_PITCH
Spindle
ENC_IS_LINEAR_=0
Load
gearing
Measuring
gearing
n
Spindle
n
Encoder
DRIVE_AX_RATIO_NUMERA No. of motor rev.
DRIVE_AX_RATIO_DENOM
=
No. of spindle rev.
Fig. 6-10 Linear axis with machine-mounted rotary encoder
M
IS_ROT_AX=1
ENC_RESOL
DRIVE_ENC_RATIO_NUMERA No. of motor revolutions
DRIVE_ENC_RATIO_DENOM
=
No. of encoder revolutions
DRIVE_AX_RATIO_NUMERA No. of motor rev.
DRIVE_AX_RATIO_DENOM
=
No. of load rev.
ENC_IS_DIRECT=0
LG
n
Encoder
Rotary table
Load
gearing
n
Motor
Measuring
gearing
n
Load
ENC_IS_LINEAR=0
Fig. 6-11 Rotary axis with motor-mounted rotary encoder
L
IS_ROT_AX=1
ENC_IS_LINEAR_=0
ENC_RESOL
DRIVE_ENC_RATIO_NUMERA
No. of load rev.
DRIVE_ENC_RATIO_DENOM
=
No. of encoder rev.
ENC_IS_DIRECT=1
GM
Measuring
gearing
Load
gearing
Rotary table
Load
n
Encoder
n
DRIVE_AX_RATIO_NUMERA
DRIVE_AX_RATIO_DENOM

No. of motor revolutions
No. of load revolutions
Fig. 6-12 Rotary axis with machine-mounted rotary encoder
Linear axis with
machine-mounted
rotary encoder
Rotary axis with
motor-mounted
rotary encoder
Rotary axis with
machine-mounted
rotary encoder

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