SYSTEM OPERATION – Dual Independent Systems
Page 52 of 80
If, due to a failure in the DSC-DSC communication link, one system does
not receive the other system’s rudder position, it will assume that the other
rudder position is the same as its own. This will ensure that if one of the
two control systems is shut down when synchronized DIGITAL FFU mode
is selected, the system that is running will not move to some arbitrary
angle.
NOTE:
With twin independent rudder systems, an autopilot system only capable
of controlling one rudder can be used by operating the two systems in a
master-slave arrangement.
Through the DSC setup program one DSC can be setup as the ‘master’
system and the other system will be set up as the ‘slave’ system. The
autopilot will be interfaced with master system and under AUTOPILOT
mode the autopilot will control the position of the master system’s rudder.
When the slave system is placed in the AUTOPILOT mode it will receive
rudder position commands from the master system via the DSC-DSC
communication link. This will ensure that under AUTOPILOT control the
port and starboard rudders remain synchronized.
Doc No.: MAN01504, 20-02-06 DSC 100 & MCP 100 Manual
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