01/2007
11.5 Axes and spindles
11-330
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
If you use DSC, a speed setpoint filter for rounding the speed setpoint steps is
no longer necessary. The speed setpoint filter is then only of any use with differ-
ence injection to support the position controller, for example, to suppress reso-
nance.
DSC is only possible in conjunction with the motor measuring system.
Table 11-25 DSC: Machine data
Number
Identifier Name Refer-
ence
Axis–specific ($MA_ ... )
32640 STIFFNESS_CONTROL_ENABLE Dyn. stiffness control DD2
32200 POSCRTL_GAIN KV factor G2
11.5.9 Drive optimization
Optimization of the control loop (current, speed, and position control loop) of the
drives can be performed with:
S HMI Advanced (see Section 14, Page 14-427)
– Depending on the installation version: SINAMICS S120 or SIMODRIVE
drives
S SINAMICS STARTER commissioning tool
– SINAMICS S120
S SIMODRIVE SimoCom U commissioning tool
– SIMODRIVE 611 universal/E
– SIMODRIVE POSMO CD/CA
– SIMODRIVE POSMO SI distributed servo drive
Note
Detailed information on measuring the filter frequency response and optimizing
torque/current and speed control loop can be found in:
S SINAMICS
Online Help for Commissioning Tool: STARTER > Contents > Diagnostics
functions
S SIMODRIVE 611 universal/E, POSMO CD/CA and SI
Online Help for SimoCom U Commissioning Tool > Index:
– Measuring function
– Optimization of speed control loop
Speed setpoint
filter
Measuring system
Machine data
11 NCK Commissionin
with HMI Advanced
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