Raymarine autopilot control unit - Manual (Page 87)

70 ST7000 Plus Autopilot Control Unit Owner’s Handbook
The ST7000 Plus should immediately respond by switching on its
display illumination.
If the illumination does not switch on then a cabling fault exists in the
SeaTalk cabling between the ST7000 Plus control head and the
instruments/control unit.
EMC Conformance
The design and manufacture of Autohelm equipment and accessories
conforms to the appropriate Electromagnetic Compatibility (EMC)
standards, but good installation is required to ensure that performance
is not compromised. Although every effort has been taken to ensure
that they will perform under all conditions, it is important to
understand what factors could affect the operation of the product.
Always check the installation before going to sea to make sure that it is
not affected by radio transmissions, engine starting etc.
In some installations, it may not be possible to prevent the equipment
from being affected by external influences. In general this will not
damage the equipment but can lead to it resetting, or momentarily may
result in faulty operation.
6.2 Initial Sea Trial
Having checked that the system is functioning correctly, a short sea
trial is now required to complete the setup. It involves the following
procedures:
• Automatic compass deviation correction.
• Heading alignment adjustment.
• Autopilot operation check.
• Rudder gain adjustment.
Note: The ST7000 Plus has a built-in calibration capability which
enables the autopilot to be fine tuned to suit the individual vessel, its
steering system and dynamic steering characteristics. As supplied from
the factory the unit is calibrated to provide safe stable autopilot control
for the majority of vessels.
The initial sea trial should be performed under the following
conditions:
• After all the successful completion of the installation procedure,
functional testing and initial calibration.
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