Seakeeper 2 Operation Manual (90489-3); S/N 2-232-1564 to Current
3.2 Operating Instructions
3.2.1 Start Up
The Seakeeper should be shut down when stabilization is no longer required. This maximizes the longevity of the Seakeeper.
- Energize Seakeeper 2 Battery Isolation Switch.
- Energize Seakeeper 2 High Curre3nt DC Power Supply (12 VDC, 100 A) at customer-supplied circuit breaker.
- Energize 12 VDC Seawater Pump power supply at the customer-supplied circuit breaker (unless a fuse is supplied as overcurrent protection).
- When the high DC power is turned on, the ConnectBox and Seakeeper 5” Touch Display or MFD application will initialize as seen below. The Seakeeper 2 can be powered on and controlled by either the Seakeeper Application or the ConnectBox.
- With system energized, check the Seakeeper display for any ALARMS. If there are any ALARMS present. Alarms must be addressed to proceed.
- To turn the Seakeeper on, press the POWER button; the button will turn blue. The progress bar will appear and indicate how soon the Seakeeper will be available for stabilization. The progress bar indicates the speed of the flywheel as it accelerates to its rated operating RPM.
- When the Seakeeper is initialized and up to Stabilization RPM the STABILIZE button will appear on the application, or if using the ConnectBox, the STABILIZE button will illuminate blue and pulsate. At this point, the Seakeeper is available for stabilization by pressing the STABILIZE button.
- The progress bar indicating flywheel spool-up will disappear from the display screen once the STABILIZE button is pressed (turns blue) and the ConnectBox will fully illuminate. At this point, the Seakeeper has reached its rated operating RPM and maximum stabilization is available. If the STABILZE button has not been pressed(button is grey), pressing the button will turn it blue and stabilization will be provided. The seawater pump will cycle on and off based on the operating temperature of the Seakeeper 2.
3.2.2 Stabilization
If it is necessary to shut off power to the flywheel motor and slow the flywheel for any reason, press Seakeeper On/Off button; the button will turn grey and the Stabilize button will disappear, indicating the command has been accepted. It takes approximately 8+ hours for the speed to slow down to 0 RPM.
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If it is necessary to stop Seakeeper motion for any reason, press the Stabilize button. The Stabilize button will turn grey indicating that the Seakeeper is locked. Never attempt to work on the Seakeeper until the flywheel has stopped spinning. In the event that the brake system has automatically locked the Seakeeper due to an alarm or failure, no attempt should be made to bypass the alarm or automatic lock.
To stabilize the vessel after the Seakeeper is On and the flywheel is above the minimum stabilization RPM, press the STABILIZE button. The button will turn blue indicating that the Seakeeper is stabilizing the roll motion.
Boat operators are advised that the Seakeeper’s sole function is to dampen a boat’s cyclic roll motions. The Seakeeper is not, and is not intended to be, a substitute for adequate hull stability about the pitch, roll and yaw axes and the Seakeeper is not designed to prevent any instability due to improper boat operation, including, without limitation, any aggressive maneuvers at high speed. During aggressive maneuvers at high speed, the Seakeeper outputs a constant pitch moment which can create a small bow-down or bow-up trim change.
Improper boat operation including, without limitation, aggressive maneuvers at high speed can result in the boat becoming unstable. If you intend to operate the boat in such a manner, you should lock the Seakeeper in the vertical position before operating the boat in that manner. This is easily accomplished by turning the boat to starboard at slow speed in the Stabilize mode. After turning to starboard for 5 seconds, turn the Stabilize mode off while continuing to turn and then go to the Service Page on the display and confirm the Gyro Angle is within +10 degrees of 0 degrees.
3.2.3 Normal Shutdown
The Seakeeper should be stopped when stabilization is no longer required. Once the vessel is secured in the slip, the high and low current DC power to the Seakeeper should be switched to the Off position. The Seakeeper will continue to spool down to 0 RPM. No cooling is required during this time. Note Seakeeper will take 6+ hours to coast down to 0 RPM from full speed.
Note: The seawater pump may run for up to 5 minutes after the Seakeeper is switched off and is coasting (with low current DC power applied).
The Seakeeper should be shut down when stabilization is no longer required. This maximizes the longevity of the Seakeeper.
- Press the Seakeeper POWER button. The POWER button will turn grey. The Seakeeper will discontinue stabilization and the flywheel will start coasting.
- Once the vessel is secured in the slip, switch the high current and low current DC power to the Seakeeper off. The flywheel will continue to spool down to 0 RPM. This can take 6+ hours from full speed. When the flywheel has stopped spinning, 0 RPM will appear on the service screen.
