Set Up and Maintenance
154
9836 3521 01
4.6.6.2 Dynamic Zero Offset and Angle Count
Dynamic zero offset
is measured as the average torque while the spindle first runs the specified
Target
angle
degrees in forward direction and then in the reverse direction.
If an
Angle count test
is specified
the
motor will run exactly as when performing a Dynamic zero offset
test. The angle is measured separately in the forward and the backward direction. Both measured angles
must be greater than the specified
Target angle
– Angle limit
and less then the specified
Target angle +
Angle limit
. If not then step status is set to
Fatal
and the error flag ANGDIAG is set. If Dynamic zero
offset is selected as well then it is measured at the same time as the Angle count test.
4.6.6.3 Flying Zero Offset
Flying zero offset
is measured as the average torque while the spindle runs forward. The measurement
is not started immediately when the diagnostic step is started but first after that the
Time from cycle start
to measuring
has elapsed.
The average value is calculated during
Measuring time
. The absolute value of the measured offset
should be below
Maximum Flying Zero Offset
.
Whether or not the step is stopped when the offset exceeds this value depends on the value of
Continue
to run on failed Flying Zero Offset
. If checked then a too high value just generates a warning
(FLYZODIAG) and the bolt is not stopped. If not checked, then the occasion is considered to be an error
(FLYZODIAG) and step status is set to Fatal.
Since measuring does not necessarily start immediately when the diagnostic step does, both measuring
and evaluation may be done while during the execution of another step. If the cycle ends before
measuring is started, that is before
Time from cycle start to measuring
has elapsed, then the measuring
is cancelled and neither an error nor a warning is generated.
Note!
The measured zero offset value is used to compensate all torque readings from that the next step
(compared to the step where the last zero offset measuring was taken) is started.
Содержание PowerMACS 4000
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Страница 46: ...System Architecture 46 9836 3521 01...
Страница 127: ...Set Up and Maintenance 9836 3521 01 127 See chapter Station Set Up for a description of the parameters...
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Страница 422: ...Peripheral Devices 422 9836 3521 01 When connected to a system the form will show show the signal values in realtime...
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Страница 664: ...References 664 9836 3521 01...
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