Parameterization Of Incremental Measuring Systems - Siemens SINUMERIK 840Di Manual

06.03
10.5.5

Parameterization of incremental measuring systems

Rotary measuring
system
Linear axis with
rotary encoder
on the motor
Linear axis with
rotary encoder
on the machine
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
/FB/ Description of Functions, Basic Machine
A2 Various Interface Signals
Section: Interface signals to axis/spindle
The diagrams below show the general possibilities of arranging a rotary
incremental measuring system with regard to motor and load, as well as the
resulting values for the appropriate machine data.
ENC_IS_LINEAR_=0
n
Encoder
ENC_IS_DIRECT=0
Meas.
gearbox
F M
n Motor
ENC_RESOL
DRIVE_ENC_RATIO_NUMERA
DRIVE_ENC_RATIO_DENOM
Fig. 10-7 Linear axis with motor-mounted rotary encoder
IS_ROT_AX=0
Í Í Í Í Í
M
Í Í Í Í Í
Load
gearbox
n n
Spindle
Motor
DRIVE_ENC_RATIO_NUMERA
Motor revs
=
DRIVE_ENC_RATIO_DENOM
Encoder revs
Fig. 10-8 Linear axis with machine-mounted rotary encoder
10 NC Start-Up with HMI Advanced
IS_ROT_AX=0
Load
gearbox
Table
Í Í Í Í Í
n Spindle
DRIVE_AX_RATIO_NUMERA
DRIVE_AX_RATIO_DENOM
Motor revs
Encoder revs
DRIVE_AX_RATIO_NUMERA
DRIVE_AX_RATIO_DENOM
ENC_IS_DIRECT=1
Meas.
gearbox
Table
Leadscrew
LEADSCREW_PITCH
n
Spindle
10.5 Axes and spindles
Ball screw
LEADSCREW_PITCH
Motor revs
=
Spindle revs
Motor revs
=
Spindle revs
ENC_IS_LINEAR_=0
F
ENC_RESOL
ENC_TYPE=1
ENC_IS_LINEAR=0
n
Encoder
ENC_RESOL
10-317