Seakeeper 6 - Controls, Performance, and Safety Features

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OPERATION
MANUAL
Product: Document #: Rev: Page:
SEAKEEPER 6 90403 1 3 of 3
Section 6: GYRO SPECIFICATIONS
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Operator Controls
A Display with integrated Keypad is used to start, operate, monitor, and shutdown the
Seakeeper.
Performance
Seakeeper reduction of boat roll is a function of the boat’s displacement, transverse metacentric
height (GM
T
) and hull damping as well as the operating conditions (speed and heading with
respect to waves) and sea state. The Seakeeper controller regulates the active hydraulic brake
to ensure the Seakeeper’s anti-roll torque is maximized irrespective of hull characteristics or
operating conditions.
Alarm and Monitoring
Sensors, alarms and shutdowns are provided to allow unattended operation. Sensors measure
Seakeeper and drive temperatures, vacuum pressure, gimbal angle, brake pressure, and ship
motion. The Seakeeper controller sends sensor values and alarm information to the display and
also locks the brake and shuts down the motor drive in the event of an alarm condition.
Seakeeper operating history during faults or alarms is recorded in the controller’s memory for
subsequent recall if service is needed.
Safety
The brake automatically locks the Seakeeper so it cannot generate excessive anti-rolling torque
loads in the event of a system fault or alarm, loss of electrical power or loss of brake pressure.
The brake can be locked from the Display or by shutting off power locally at the Motor Drive Box
or Seakeeper Control System.