Siemens SINUMERIK FM-NC Installation And Startup Manual page 131

03.96
Note
Axes which interpolate with one another must have the same following error at
a given velocity. This can be achieved by setting the same K
dynamic response matching via
MD 32900: DYN_MATCH_ENABLE and
MD 32910: DYN_MATCH_TIME.
References:
Checking the
If a K
loop gain checked. To check the factor, the axis acceleration must be reduced via
MD 32300: MAX_AX_ACCEL in order to ensure that the drive does not reach
its current limit during acceleration and braking.
The K
spindle (e.g. for spindle positioning, tapping).
The approach behavior at various speeds can be checked by means of a
storage oscilloscope or the SIMODRIVE 611D start-up software. The speed
setpoint is recorded for this purpose.
n
set
[V]
"Badly"
selected K
V
Fig. 6-17 Speed setpoint characteristic
No overshoots may occur while the drive is approaching the static statuses; this
applies to all speed ranges.
The SIMODRIVE 611D start-up software offers various methods of checking the
K
surement).
Causes of
S
overshoots in
position control loop
S
S
S
For safety reasons set the K
value. Static checking of the K
softkey in the "Service Display" menu. The real K
that set because monitoring functions are derived from the K
otherwise respond (e.g. contour monitoring).
 Siemens AG 2000 All Rights Reserved
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
6 Assigning Parameters to the Control and the PLC Program
/FB/, G2, "Velocities, Actual Value Systems, Cycle Times"
factor is already known for the machine in question, this can be set and
V
factor must also be checked for high speeds of the rotary axis and
V
n
set
[V]
factor
t [ms]
factor (e.g. frequency measurement, speed and position control loop mea-
V
Acceleration too high (current limit is reached)
Error in speed controller (re-optimization necessary)
Mechanical backlash
Mechanical components canted
V
6.9
"Well"
selected K factor
V
factor to a little less than the maximum possible
factor is performed with the "Service Axis"
V
factor must precisely match
V
Axes and spindles
factor or through
V
t [ms]
factor that would
V
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6