OPERATION
MANUAL
Product:
Document #:
Rev:
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SEAKEEPER 26 / 20HD
90266
7
2 of 4
Section 3: POWER FAILURES, ALARMS, AND TROUBLESHOOTING
3.2 230 VAC Failure
If the AC power is not connected, a notification screen will
indicate “AC Mains Low”. If the failure
is not corrected within two minutes,
an “AC Mains Low” alarm will occur. The brake will lock and
the Seakeeper will stop precession if stabilization was on.
•
Verify the boat’s circuit breaker supplying 208-230 VAC to the Motor Drive Box has not
tripped.
Once 208-230 VAC is restored:
•
Press POWER button
to clear the alarm.
•
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 low current is turned back on. These are both acceptable cases of voltage fluctuation
and should not cause an alarm unless the change in AC voltage is prolonged.
3.3 230 VAC Fluctuation, Spike or Momentary Failure
If the AC voltage to the Motor Drive Box is outside Seakeeper’s specified range (208 – 230 VAC),
the Motor Drive Box will briefly shut down for protection. The Motor Drive Box will continue
operation when the voltage returns to the specified range.
A brief fluctuation can happen when the generator is unable to regulate its output voltage,
particularly when a large AC load is switched on or off. A momentary AC failure also happens
during transition from shore power to ship’s power.
3.4 Alarms
The Seakeeper issues an alarm when it detects a malfunction that could cause damage or erratic
operation. When an alarm occurs, the Seakeeper will stop and an alarm message is shown on
the Display.
The alarm will not clear until the operator presses the RESET ALARM button and the alarm
condition is no longer present. The operator can then press the POWER button again to continue
Seakeeper operation.
