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How to check the hull unit
1. Press the power key to turn the power on, then check that the LEDs located to the
left of the power key and
2. Confirm that the "3.3 V" and "UP" LEDs on control panel of the raise/lower control
box are on.
3. Remove the cover of the raise/lower control box and check the terminal voltage
as shown in the table below.
4. Set the TEST/NORMAL switch on the control panel to [TEST], then press the
DOWN switch to confirm that the transducer lowers. Also, while the transducer is
being lowered, check that the "LTX" LED lights when the TX limit switch is passed
by the transducer shaft.
Note: The TX limit switch does not stop the transducer when the TEST/NORMAL
switch is in the [TEST] position.
5. Release the DOWN switch during lowering to confirm that the transducer stops
lowering.
(Retract) key are turned on.
Control panel
OFF
NORMAL 3.3V
TB-C101
Terminal block Terminal No.
TB-C101
3. ADJUSTMENT AND CHECKS
TEST
Not used.
L.SW
UP
HTX
HTX LTX DN
DOWN
UP
Voltage
(1)-(2)
220 VAC
(2)-(3)
220 VAC
(1)-(3)
220 VAC
3-5
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