HEIDENHAIN MANUALPLUS 620 - Page 1111

January 2012 6.20 Commissioning 1111
2. Speed
adjustment
The aim of speed adjustment is to achieve that the output nominal speed value
is equal to the really measured actual speed value (V
nom
= V
act
).
Determine whether the nominal speed value (V
nom
) differs from the actual
value (V
act
) on the machine. Proceed as follows:
 Switch on the machine.
 Select the following operating mode without crossing over the reference
marks:
Manual Operation
 Switch to the Oscilloscope mode of operation (code number 688379).
 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 to switch to the curve representation.
 Press the START soft key to start recording.
 Press the axis-direction key of each axis to be checked.
 Press the STOP soft key to stop recording.
 Compare the values measured for V
nom
and V
act
with each other.
 Ideally, your oscilloscope measurement should look similar to this:
Settings in the configuration editor:
Axes
ParameterSets
[Key for parameter set]
CfgAxisAnalog
maxFeedAt9V
Note
In the internal oscilloscope, the analog signal corresponds to the output
voltage U
out
(= analog speed command signal) at connector X8.