5-22 Operation MN1941WEN
5.5 Local stepper axis - testing
This section describes the method for testing a local stepper axis. The stepper control is an
open loop system so no tuning is necessary. See section 5.4.3 for details about creating a
stepper axis.
5.5.1 Testing the output
This section tests the operation and direction of the output. It is recommended that the
system is initially tested with the motor shaft disconnected from other machinery.
1. Check that the Drive enable button is
pressed (down).
2. In the Toolbox, click the Edit & Debug icon.
3. Click in the Command window.
4. Type:
JOG(0)=2
where 0 is the axis to be tested and 2 is the
speed.
The JOG command specifies the speed in
user units per second, so the speed is
affected by SCALEFACTOR (section 5.4.4). If you have not selected a scale, the
command JOG(0)=2 will cause rotation at only 2 half steps per second, so it may be
necessary to increase this figure significantly, to 200 for example. If you have selected a
scale that provides user units of revolutions (as described in section 5.4.4), JOG(0)=2
will cause rotation at 2 revolutions per second. If there appears to be no step or direction
output, check the electrical connections to the axis’ assigned STEPx and DIRx outputs.
5. To repeat the tests for reverse moves, type:
JOG(0)=-2
6. To remove the demand and stop the test,
type:
STOP(0)
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