HEIDENHAIN MANUALPLUS 620 - Page 1114

1114 HEIDENHAIN Technical Manual MANUALplus 620
3. Determining the
acceleration
 Clamp an object of maximum permissible weight on the machine table.
 Now enter the temporary machine parameters listed in the table.
Goal of the temporary input values: A jump in the nominal value is output to
the axis.
 Switch to the Oscilloscope mode of operation.
 Set the following values in the oscilloscope by pressing the SELECTION soft
key:
Display mode: YT
Sampling time: IPO clock
Channel 1: Analog
Channel 2: v nom
Channel 3: v act
Trigger: Free run
 Press the OSCI soft key.
 Press the START soft key to start recording.
 Press the rapid traverse key together with the axis-direction key to output
the maximum possible feed rate.
 Press the STOP soft key to stop recording.
Note
Write down the current input values set in CfgPositionFilter. You will need
to enter these values again after the acceleration has been optimized.
Machine parameters in the configuration editor Temporary
input value
Meaning
Axes
ParameterSets
[Key for parameter set]
CfgPosControl
kvFactor
CfgFeedLimits
maxAcceleration
CfgPositionFilter
filter2Shape
manualFilterOrder
0
999999
Off
1
k
v
factor
Maximum acceleration
Shape of 2nd nom. pos. value
filter
Order of mean-value filter in
manual mode
Warning
Ensure that the transmitted nominal-value step does not cause any damage
to the machine mechanics. It may be necessary to determine the
acceleration by careful approximation.