Consilium SELUX ST, Installation And Service Manual

Page: 77 / 180

RADAR CONFIGURATION
3.4 Rev. E
Examples:
1:360
means that each stepper or synchro cycle corresponds to 1 degree and 1 complete
360° turn correspond to 360 cycles. For this setup the gyro resolution will be 1/6°
1:36
means that each stepper or synchro cycle corresponds to 10 degree, and 1 complete
360° turn correspond to 36 cycles.
Normally with most of the Gyro types the Gyro Ratio is 1:360.
Other settings are available with analogue gyro: one is the “ Reference generated
Internally
” checkbox that is the usual setup with stepper compass.
When the reference signal to sample phases is external the checkbox should not be
activated.
Another checkbox “
Negative Phases
” is available in stepper mode and it should be
checked when the voltage on phase is going from zero to negative.
The S1, S2, S3 symbols can be highlighted and reflect exactly the same gyro phases
states described on the analogue gyro section.
The user manual explains the analogue gyro interface operation.
In any case consider that this kind of interface doesn’t permit same level phases, or no
reference signal connected (synchro mode). Every failure caused by these malfunctions
will be cleared only with a Gyro Preset operation.
The gyro preset is necessary also because this kind of interface is not absolute but
receives only incremental pulses and needs a preset value taken when the ship’s heading
is stable.