4.2 DC Power Failure

12 VDC Low Current

If the +12 VDC control power is disconnected during operation, the MFD app for the Seakeeper will go blank, the flywheel speed will decrease, and the brake will be locked (no precession).

• Verify the boat’s circuit breaker supplying +12 VDC control power has not tripped and the AC breaker is On.
• When +12 VDC control power is restored, the display will power up, the Splash Screen will appear, and then the Home Screen will appear.
• Press the Power On/Off button . The progress bar will appear and indicate flywheel speed. When the flywheel is at its minimum operating speed, the Stabilize button will appear, allowing stabilization to be turned on. This may take up to 30 minutes, depending on the flywheel’s speed when the +12 VDC is turned back on.

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Seawater Pump Power

If Seawater Pump input DC power is disconnected during operation, the Seawater Pump will fail to provide cooling seawater flow when required. The resulting high temperatures would result in the Seakeeper being turned off (no stabilization) due to high temperature alarm(s).

• Verify that the boat’s circuit breaker or fuse supplying power to the DC Seawater Pump has not tripped or blown.
• When DC SW Pump power is restored, reset any alarm and continue Seakeeper operation.