DOCS-001 Manual, SeaBotix Inc. Users, 150 – 200 Series - Rev B – 27 Jan 10 -
Page 50 of 64
Cause:
The motor controller is faulty.
Fault Isolation:
In the case of lateral and vertical thrusters, simply thrust only
one thruster in one direction at a time until the symptom reoccurs.
In the case of the port and the starboard thrusters (since they work together), first
determine if the failure is in the forward or aft direction. For example: If the failure
occurred in the forward direction, you can determine which thruster failed by
utilizing the LBV’s rotate function. Rotating the LBV clockwise causes the port
thruster to thrust forward while the starboard is thrusting aft. By using this
feature, the troubleshooter can run each thruster in one direction at a time. The
faulty thruster needs to be replaced.
Note:
This fault can occur with grabbers and external lighting when these devices are being operated
but the fault isolation would be the same.
