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8.
WIRING OF CONTROL BOX
NOTES:
1. The installer must protect the positive supply cable by means of a fuse (slow blow) as indicated.
The size of these supply wires (min. 2,5mm² with Imax = 15 A) depends on the length of the cable run and
the voltage drop in these cables should not exceed 5% of the nominal battery voltage. For CR70 and CR85
models the command circuit (control panel, control box, up/down servo motor) is always 12V
powered.
2. Install an electric isolator/switch, in the supply of the thruster control box, on the boats main electrical switch board,
marked "Bow Thruster". This breaker or switch should ideally be supplied from a source independent to that used for
the thruster. See "Wiring Diagram for more detail.
3. All units are supplied with 25 meters of 11-core control cable, although only ten wires are needed to connect control box to
control panel. In order to avoid confusion when doing wiring, it is recommended to connect together the two orange wires
at both control box and control panel ends of the control cable.
4. When in "Manual Mode" during the final set-up and installation stages of the thruster unit, it might be necessary to
increase the "up" or "down" torque values of the up/down motor in order to ensure that thruster turbine reach it's
fully "up" or "fully" down position when being raised and lowered. To increase the torque the "up" or "down" torque
screw should be adjusted clockwise in small steps until desired position is reached.
20
before 2017
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