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7243 62023
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eVision
MC_0143
Electrical Installation
1. Plan the location of electrical components before starting with the electrical installation. Main electrical components will typically consist of
battery, fuse, main switch and thruster motor, see Wiring Diagram chapter for an overview.
Sleipner offers both manual main switches and Automatic Main Switches (AMS). Sleipner AMS is controlled by the control panel in addition to
the option of manual operation. Turning on the control panel also turn on the automatic main switch. When the control panel is turned off the
automatic main switch is turned off. This ensures that the control electronics and motor are only energized when the control panel is turned on.
Sleipner offers AMS supporting either S-Link or ON/OFF control panels. Note that the AMS requires a separate power supply which should be
protected by a dedicated fuse. Ensure to select an AMS with a voltage rating according to the chosen motor- and battery voltage.
Electrical products installed in gasoline engine spaces or other areas potentially exposed for explosive gases must be Ignition Protected.
Products installed in such locations should conform to the ISO 8846, SAE J1171 or UL 1500 standard.
Common ground connection is required for dual thruster installations with two battery banks.
2. Estimate the total length of the power cables to determine the recommended cross-section. The total power cable length is de ned as the
distance from the positive battery terminal, via fuse, main switch, and thruster motor, and all the way back to the negative battery terminal.
3. Find the recommended power cable cross-section for the installation by using the estimated total power cable length and the table shown in the
chapter Electrical Reference Guide.
4. Select the recommended fuse size by using the table shown in the chapter Electrical Reference Guide.
5. Use an appropriate dimensioned battery with Cold Cranking Amps (CCA) according to recommendations given in the Electrical Reference Guide
chapter. Battery voltage must be compliant with the voltage rating of the thruster motor and control circuitry. The capacity and rated discharge
current of the battery should be according to the rated nominal current drawn and the typical duty cycle for thruster operation. The nominal
current drawn is listed in the Electrical Reference Guide chapter.
The actual voltage at the motor while running the thruster determines the motor RPM and thrust. Using a smaller cross-section than
recommended or a low-capacity battery could reduce performance.
Installing a battery close to the thruster reduces the length of the power cables and potentially increases the performance, due to lower voltage
drop in the power cables. For installations on large vessels with bow and stern thrusters or catamarans a dedicated battery for each thruster
should be considered.
6. Install and connect the electrical components according to the applicable Wiring Diagram chapter.
For safety reasons it is always recommended to install a fuse and a main switch on the power cables and as close as possible to the positive
battery terminal. The main switch must be installed such that it is easily accessible so that the thruster can be electrically disconnected to a safe
state when not on-board or in the case of an emergency.
For dual thruster systems using only one battery bank a dedicated fuse and main switch should be installed for each thruster. These should be
installed close to the battery bank.
Follow the instructions in the Motor Lug Connection chapter when fastening the power cables to the motor.
7. Fuse and main switch should be installed according to the installation manual accompanying the products.
8. Install the control panel according to the instructions in the Installation Guide included with the control panel.
WARNING
After all electrical connections have been completed, turn off main switch and check the following with an ohmmeter:
1. There is no electrical connection between motor flange and the positive terminal on the motor.
2. There is no electrical connection between motor flange and the negative terminal on the motor.
If unsure contact skilled personnel.
MG_0587
Bolt tightening force (4x)
33 Nm (24 lb/ft)
Loctite 243
a mm
18mm IMPORTANT!
The rubber/plastic element must be
in its correct position, fully inserted
but not compressed.
Example:
height A = 47mm - 48mm.
The correct placement of the lower flexible coupling unit should be measured
from the top surface of the motor bracket to the bottom inner surface of the
lower flexible coupling. (NB: The extra 1mm is added to eliminate the risk of
compression to the rubber element between the two couplings.)
a mm
18mm
Install the relevant motor and
other electronics according to
electrical instructions in the
manual
1
2
3
4
V-Motor to House Installation
1. Install the motor onto the motor bracket ensuring the couplings and the drive shafts have locked together. (NB: depending on your coupling
you may need to wiggle the motor into place. Ensure the couplings are engaging correctly. Ensure the motor cable terminals are accessible for
electrical installation later.)
2. Fasten the bolts holding the motor to the motor bracket with the de ned torque.
3. Check the drive shafts engage by rotating the propeller. It is required the propeller can rotate via hand power. (NB: Rotating the propellers can be
hard because of the gear reduction and the motor.)
4. Apply grease to the internal drive shaft. We advise painting the gear house and propellers with anti-fouling. (NB: Do not paint the anodes, sealing,
rubber fi ttings or propeller shafts)
(NB: The motor must be covered to avoid dust from fabrication/ maintenance operation entering the motor or the solenoids. After fabrication
maintenance operations have ceased the cover must be removed before operating the thruster.)
MC_0633
!Please refer to the graphic for special considerations relating to your model !