Vetus BOW PRO Série Mode D'emploi Destiné Au Propriétaire page 14

2 Introduction
This manual gives guidelines for the use of the Vetus 'BOW PRO' bow
thrusters.
For maintenance, please consult the 'Maintenance and Warranty
Book' supplied. Art. code 020901.01.
The 'BOW PRO' bow thrusters have the following features:
• The thrust is continuously variable.
• The runtime is mainly limited by the capacity of the installed bat-
teries.
• The thrust delivered is, within certain limits, not dependent on the
battery voltage.
- With a decreasing battery voltage, the controller ensures that
the thrust will be maintained (APB, Active Power Balancing).
- However, the current will increase with a decreasing battery
voltage. If the current goes higher than is desirable, the deliv-
ered power is reduced (ACC, Automatic Current Control).
- When the batteries are discharged such that the voltage has
dropped to 10,5 Volts, with a 12 Volt system (21 V at 24 V), the
power supplied is reduced (AVC, Active Voltage Control)
- If the discharge of the batteries proceeds still further, so if the
voltage has dropped to 8.5 volts in a 12 volt system (17 V for 24
V), the bow thruster will stop.
• Overheating of both motor and / or regulator is prevented by de-
creasing the output power after a very long period of continuous
use.
• The thrust only decreases slightly (ATB, Active Temperature Bal-
ancing).
• In the event of a sudden overload of the motor, caused by an ob-
ject in the tunnel, the motor will switch off for safety reasons (ABC,
Active Blockage Control).
• The maintenance is minimal because the motor does not use car-
bon brushes.
14
020810.02
Alterations made to the bow thruster by the user will void any li-
ability on the part of the manufacturer for any damages that may
result.
The actual thrust force, as performed by the bow thruster, will give
different results with each individual vessel, depending on the wind-
age, displacement and shape of the underwater section.
The nominal thrust quoted can only be achieved under normal con-
ditions:
• Make sure that the batteries are supplying the correct voltage
during use
Following the above recommendations will result in longer life and
better performance of your bow thruster.
• Carry out the recommended maintenance regularly.
The maximum continuous length of usage and the thrust
as specified in the technical details are based on the recom-
mended battery capacities and battery cables.
vetus® Owner's Manual BOW PRO Series Thrusters
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