8 2 0 0 A C U S E T U P
40
Series 8000™ O&M Manual
3.5.5
Motion Faults
Settings on the Motion tab determine when certain key fault condi-
tions are asserted by the ACU.
Figure 3-21
Setup > Motion Faults
Settings that influence when certain system faults will be asserted.
For each axis:
•
Period
How often, in milliseconds, measurements are checked for the
two motion faults, which are:
•
Tolerance
If a motion is commanded and the measured angle does not
change by at least the number of degrees entered here, the
axis-
immobile
fault is asserted. If motion is detected reverse to the
commanded direction, by this amount, the
reversed
fault is as-
serted.
•
Runaway
If no motion is being commanded but the measured angle
changes by this amount or greater, the
runaway
fault is asserted
and the ACU cuts off the drive enable. (For details, see the run-
away faults
’
descriptions at, for example, "Azimuth runaway".)