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3. ADJUSTMENT AND CHECKS
1. Encoder
2. Fan revolutions
3. Roll angle
4. Pitch angle
Fan motor and inertial measurement unit test
By changing the item displayed on the 7 segment LED, you can test the fan motor and
inertial measurement unit. By pressing the display select button (shown in the figure
above), you can change the displayed item. Use the following procedure to test the
fan motor and inertial measurement unit.
1. Press the display select button in the raise/lower control box to show the fan rev-
olutions.
2. Confirm the fan revolutions are at 35 or higher. If they are lower than 35, there may
be something wrong with the fan.
3. Press the display select button to show the roll angle.
4. Rock the vessel and then check that the 7 segment LED displays a change.
5. Press the display select button to show the pitch angle.
6. Rock the vessel and check that the 7 segment LED displays a change.
7. With the test completed, press the display select button to show the encoder
revolutions.
3-8
7 segment LED
Brake release switch
Released brake selected
at toggle switch.
Toggle switch
Switched between motor
brake and drive shaft brake.
Brake LED
Lights when brake is
functioning normally.
Display select button
Changes the displayed figure
in the 7 segment LED in the
following order, 1 - 2 - 3 - 4,
then returns to 1. The LEDs
below the 7 segment LED
show which item is currently
displayed.
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