OPERATION
MANUAL
Product:
Document #:
Rev:
Page:
SEAKEEPER 5 GYRO
90246
4
6 of 8
Section 1: SYSTEM OVERVIEW
1.3
Drive Box
The Drive Box contains the electronic components that take 110-230 VAC at 50/60 Hz from the boat’s
generator or shore power and supply current to the flywheel motor according to commands from the
Electronic Control Module (ECM). The glycol/water mix that cools the gyro is also circulated through a
cold plate inside the Drive Box to remove heat from high-power electronic components.
The Drive Box contains high voltage electronics and the cover should
not be removed while the flywheel is spinning except by an authorized
technician. This high voltage exists even if the flywheel is coasting
down and the supply voltage has been shut off.
FIGURE 5 – DRIVE BOX
1.4
Electronic Control Module
The Electronic Control Module (ECM) monitors all the system sensors and automatically regulates
operation of the gyro.
The controller commands the motor speed and regulates the gyro’s precession rate and gimbal angle.
This is accomplished by commands to a high response flow control valve in the hydraulic brake circuit
that increases or decreases the brake pressure.
DRIVE BOX
