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8 - Important warnings
8.0 - Important cautions
• This thruster is not designed for continuous use. It is equipped with protections which limit its operation at
a maximum time span, as reported on the controls' manual. It is strongly forbidden to bypass or modify such
protections in order to increase the operating time span, as these actions will void the warranty, thus lifting any
responsibility from Quick® SPA.
• Make sure no swimmers or floating objects are in the vicinity before switching on the retractable thruster.
• In order not to damage the system, it is recommended to avoid navigating with the retractable thruster open and to
open and close the thruster within a maximum speed of 4 knots and to proceed in reverse at a maximum speed of
2 knots, always taking into account the currents.
• In order not to damage the system, it is also recommended not to enable the thruster at speeds exceeding four
knots.
• There must not be flammable materials in the peak or in the area where the Bow Thruster motor is.
• During mooring, it is recommended not to leave in the water any free line, which may be sucked in by the thrusters,
thus leading them to break (fig. 24).
Fig. 24
9 - Use
9.0 - Retractable thruster use
To use the retractable thruster, refer to the TCD control manual
Start-up
When powered on, the RTC R1 board checks the position of the retractable thruster (raised, lowered, or in intermediate position).
In the event that it is raised, the system does not perform actions.
In the event that it is lowered or in an intermediate position, it will control the rise of the retractable thruster.
Enabling control from TCD (Retractable thruster lowering)
When the RTC R1 board is enabled by a TCD control, the retractable thruster lowering procedure begins.
The right/left commands coming from the TCD will be inhibited until the procedure is completed.
During the lowering phase, the RTC R1 board measures the current drawn by the linear actuator.
If due to mechanical friction there is a high absorption of the linear actuator, the lowering will be reversed for a short time and
then resumed. The RTC R1 board will report the problem after 3 attempts.
Disabling control from TCD (Retractable thruster rising)
When the RTC R1 board is disabled by a TCD control, the retractable thruster rising procedure begins.
On the way up, the right/left commands coming from the TCD will be inhibited.
During the rising phase, the RTC R1 board measures the current drawn by the linear actuator.
If due to mechanical friction there is a high absorption of the linear actuator, the rising will be reversed for a short time and
then resumed. The RTC R1 board will report the problem after 3 attempts.
Automatic rising in case of TCD time-out
With the thruster down, the retractable thruster performs the rising procedure after 6 minutes from the last right or left
command of the TCD.
Error detection from the TCD
If the TCD sends an error signal into the network (extended command, line interruption, short circuit on the right or left output),
the retractable thruster performs the rising procedure.
QUICK BTR Series INSTALLATION AND USER'S MANUAL - REV 001C
BTR Series
EN
BTR Series
21
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