DOCUMENT # 90021, REV 4 MODEL 7000 GYRO OPERATION MANUAL-MAR09
Page
5
of
8
3.2.1
GYRO ASSEMBLY ALARMS
Component
Alarm or
Failure
Detection
Alarm When
Reset When
Display
Indication
Controller
Action
Troubleshooting
Recommendations
Above
For
Below
For
Upper Outer
Bearing
High
Temp
Sensor
75
o
C
2.5 sec
50
o
C
5 sec
Bearing 1
Temp
High
Coast Motor
Lock Gyro
Refer to Seakeeper
Drawing
90003 &
verify: (1) boat seawater
pump is on, (2)
seawater supplied to
gyro heat exchanger (3)
gyro glycol pump is
running, (4) no glycol
leaks, and (5) knob on
thermostatic mixing
valve is full CW.
Upper Inner
Bearing
High
Temp
Sensor
75
o
C
2.5 sec
50
o
C
5 sec
Bearing 2
Temp
High
Coast Motor
Lock Gyro
Same as above
Lower Inner
Bearing
High
Temp
Sensor
75
o
C
2.5 sec
50
o
C
5 sec
Bearing 3
Temp
High
Coast Motor
Lock Gyro
Same as above
Lower Outer
Bearing
High
Temp
Sensor
75
o
C
2.5 sec
50
o
C
5 sec
Bearing 4
Temp
High
Coast Motor
Lock Gyro
Same as above
Motor
High
Temp
Sensor
100
o
C
2.5 sec
75
o
C
5 sec
Motor
Temp
High
Coast Motor
Lock Gyro
Same as above
Motor
Motor
Does Not
Turn
Motor
Speed &
Current
> 15
amps
& <10
rpm
5 sec
No
Fault
30 sec
Motor
Fault
Coast Motor
Lock Gyro
1) Verify boat’s AC
breaker supplying
power to the Gyro is on.
2) Refer to Seakeeper
Drawing 90005 Cable
Block Diagram & check
for AC power.
3) Check connectors on
Motor Drive J-Box
Enclosure
Loss of
Vacuum
Sensor
20 Torr
2.5 sec
16 Torr
5 Sec
Vacuum
Leak
No Action
Contact Seakeeper
Distributor for Service
when vacuum pressure
>20 Torr at ambient
temperature
Upper Outer
Bearing
Temperature
Sensor
Wire
Break
Sensor Out
of Range
Bearing 1
Sensor
Fault
No Action
Refer to Seakeeper
Drawing 90005 Cable
Block Diagram & check
connector on Gyro
Control J-Box
Upper Inner
Bearing
Temperature
Wire
Break
Sensor Out
of Range
Bearing 2
Sensor
Fault
No Action
Same as above
Lower Inner
Bearing
Temperature
Wire
Break
Sensor Out
of Range
Bearing 3
Sensor
Fault
No Action
Same as above
Lower Outer
Bearing
Temperature
Wire
Break
Sensor Out
of Range
Bearing 4
Sensor
Fault
No Action
Same as above
Motor
Temperature
Wire
Break
Sensor Out
of Range
Motor
Sensor
Fault
No Action
Same as above
Enclosure
Pressure
Wire
Break
Sensor Out
of Range
Pressure
Sensor
Fault
No Action
Same as above
Motor
Over-
speed
Sensor
10600
2.5 sec
10600
5 sec
Motor
Overspeed
Coast Motor
Lock Gyro
Refer to Seakeeper
Drawing 90005 Cable
Block Diagram & check
connector on Motor
Drive J-Box
