DOCS-010 Manual, SeaBotix Inc. Users, 200 Series – 18 Mar 09 - Rev B - Page 46 of 52
Fault Isolation:
The SPS b
oard (inside SPS) is faulty (See „SPS Power Fault Section‟).
Cause:
The SPS is configured for 240 VAC operation but is plugged into a 120 VAC supply.
Reconfigure as per the Procedures Manual.
Cause:
The SPS is configured for 120 VAC operation but is plugged into a 240 VAC supply.
The SPS board power input section is damaged and must be returned to the factory for
replacement or repair.
Fault:
The LBV Vehicle Power Supply is shorted. The Motherboard power LEDs are
flashing.
Cause:
Various (See “LBV Power Fault Section‟).
Fault:
Communications error inside the LBV. The Motherboard power LEDs are normal but
either one or both communication LEDs are unlit, or lit but not flashing.
Cause:
Various (See „LBV Communication Fault Section‟).
Symptom:
No thruster, grabber and/or ELS Control, but video is present and cameras
are controllable
Fault:
The Vehicle Power Supply has shut down power to the backplane. All LEDs are
normal.
Cause:
One or more external LBV component has a short between 28 VDC and ground.
Fault Isolation:
Following the procedure manual, remove one backplane component at a
time, reenergizing the LBV each time to test for normal operation of the remaining
components. Be advised that (though all thrusters are modular and interchangeable) the
port and starboard thrusters operate in concert. So, if no thrusters operate, and the port
thruster (which, for th
is example will „play-dead‟) is removed, the starboard thruster may
operate erratically. As long as the vertical thruster now acts normally, the problem was
indeed the port thruster. In this case the port thruster is to be replaced. The fault could have
been the grabber and others as well.
Cause:
The VPS backplane over
current protection circuit has otherwise failed (See „LBV
power failure s
ection‟).
Symptom:
When thrusting o
r operating auxiliary equipment in “X” direction, see
below, the video image goes
blank, lamps go out, and the startup message „SeaBotix
LBV150 (300, 600) is displayed. Normal or slightly corrupted overlay data is then
shown.
Fault:
The thruster is drawing excessive current when thrusting.
