4.2 DC Power Failure

24 VDC Control Power

If the 24 VDC is disconnected during operation, the display will be blank, flywheel speed will decrease, and the brake will be locked (no precession).

• Verify the boat’s circuit breaker supplying +24 VDC has not tripped and the AC breaker is On.
• When +24 VDC is restored, the display will power up, the Splash Screen will appear, and then the Home Screen will appear.
• Press Power On/Off button . The progress bar will appear and indicate flywheel speed. When the flywheel is at minimum operating speed, the Stabilize button will appear so stabilization can be turned on. This may take up to 30 minutes, depending on the speed of the flywheel when the +24 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 the boat’s circuit breaker or fuse supplying DC Seawater Pump power has not tripped or blown.
• When DC SW Pump power is restored, reset any alarm and continue Seakeeper operation.