A P P E N D I C E S
80
Series 8000™ O&M Manual
5.3
Fault Messages & Causes
System fault messages are described below, with some potential causes
and remedies. (Also see
.”)
5.3.1
"Azimuth runaway"
The ACU has detected that the axis is moving but the ACU is not
commanding it to move. The ACU responds by de-asserting the drive-
enable line to the drive cabinet. May put system in standby.
Common causes:
•
Stuck drive command relay
•
Malfunctioning position transducer
5.3.2
"Azimuth immobile"
The axis is being commanded to move, but it is not moving. May put
system in standby.
Common causes
:
•
Motor and/or motor controller is not producing enough
torque to move the axis.
•
Position transducer has become decoupled from the structure.
5.3.3
"Azimuth reversed"
The axis is reporting movement in the opposite direction to which it is
being commanded to move. May put system in standby.
Possible causes:
•
On the Setup > Encoders screen, the direction value needs to
be reversed.
•
Motor is wired incorrectly.