Operating the XtraDrive Using XtraWare
balance would cause alarms, and accurate measurements would be
impossible.
Note:
Accurate measurement is not possible if the torque is restricted
during excitation. Refer to the XtraDrive User Manual for details on
the Torque Limit function.
♦ Allowable Rotations [Rotation] Range: ±1 to 1000 rotations
The number of Allowable Rotations must be set so the measurements
can be taken safely. Set the motor revolutions so the setting is within
the operable range.
Select the limit of motor rotations during measurement. If the allowable
number of rotations is exceeded, the zero clamp function will cause the
motor to stop and measurements will be halted. Consider the
deceleration ratios for the pulley radius, ball screws, and so on, and
then select a number of motor rotations. When reducing the number of
motor rotations, also reduce the excitation amplitude and the sampling
time.
The allowable rotations acts as restriction for each excitation period.
In multiple excitation applications, the excitation start position might
shift. Check the range of motion each time excitation is applied.
Detection of the allowable rotation in the XtraDrive may be delayed
by a maximum of 2ms. If so, operation may exceed the settings due
to factors such as inertia size and interference from speed. Include a
margin when setting the allowable number of rotations.
♦ No. of Executions [Set] Range: 1 to 5
Select the number of times that the measurements should be taken for
an average measurement to be calculated. A motion set is a back-and-
forth operation that starts excitation or measurement from the forward
side and excitation/measurement from the reverse side. More
measurement iterations tend to yield more accurate measurements, but
the time required for measurement increases.
♦ Excitation Signal (fixed): Excites the machine with cycle wave.
♦ Graph Setting: Select the graph scale or leave the default setting of
AUTO for automatic scale setting. Select the colors of the lines used in
the graph of the measurement results.
♦ Caption: Enter the caption to be displayed in the graph.
46 XtraWare User Manual
To Next Page
Loading...