Owners manual

• If the motor runs:
1. Check the outputs from the Autopilot for correct operation. The red and green output
diagnostic LED's in the Autopilot distribution box should come on as described in the
ComNav Autopilot Installation and Operation Manual.
2. If the diagnostic LED's do come on and the rudder still will not move, examine the wiring
between the Autopilot and the CT2 Motor Controller again. Check for open or short circuits.
Check for nails or staples which may have penetrated the cable.
3. If the diagnostic LED's do not come on, you may have a faulty Distribution Box or Control
Head. Contact your Dealer or ComNav Marine for assistance.
Electrical Noise:
The CT2 Motor Controller uses high current switching transistors to control the motor. Every effort
has been made to reduce or eliminate the generation of electrical noise by the motor controller. If
some noise is heard on the vessel radios, and it is traced to the motor controller, a ground lug has
been provided to bond it to the vessel's grounding system. In most cases, this should eliminate
any electrical noise.
Specifications:
Operating Voltage Range: 10 to 40 volts D.C.
Operating Temperature Range: -10 degrees C to +70 degrees C
Current Limit: 50 Amps for 1 second
Normal Operating Current: 30 Amps (CT2-40A model) maximum, thermally limited
Field Control: Up to 5 Amps maximum. Overcurrent and Short Circuit
Protected
Note:
When the maximum operating limits are exceeded, the output from the CT2 Motor Controller will
automatically be turned off. This will allow the internal temperature of the output driving transistors
to fall back into the safe operating area and power will then be re-applied to the motor. This
happens in a fraction of a second, with a very strong pulsating effect to the steering gear. This will
only happen if the steering gear goes hard-over or is in some way jammed and will not move.
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