Motor Controllers

The motor controller communicates with the autopilot computer to drive the rudder.
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high power controller
Controller for reversible hydraulic pump motors up to 30 amps continuous output (50 amp peak).

This controller uses higher quality parts with much lower resistance (more than twice the efficiency) of the regular controller for the same power, but supports 4x the current. There is no enclosure option at this time.

  1. overtemperature, overcurrent (stall) detection
  2. fuse and reverse polarity protection
  3. voltage, current, temperature and rudder feedback
  4. optional port/starboard end of travel input switches
  5. Serial communication with optical isolation, prevent ground loops and other electrical problems
  6. Waterproof 4 pin connection to autopilot computer (serial communication)
  7. Waterproof 3 pin connection to rudder feedback. (included)
  8. Optional motor/pump temperature sensor.
  9. Modular design, arduino based, open source software
  10. Dimensions 115x90x40 mm
For hydraulic pumps it is recommended to have rudder feedback or end of travel switches, not for the electric motor itself (because overcurrent protection is sufficient), but to reduce stresses on the hydraulic seals.

The prototype of this controller is described here: http://phoenixketch.blogspot.com/2019/01/pypilot-open-source-marine-autopilot.html

This controller needs to be paired with a suitable autopilot computer such as tinypilot or openplotter.

datasheet

schematics

$100.00
pypilot motor controller
Add the abs enclosure option to get the enclosure pictured, otherwise only the electronics, and you can use your own enclosure. This motor controller can be used to drive a brushed motor to move the rudder.

  • can drive most existing autopilot drive units such as tillerpilot and wheel pilot
  • overtemperature, overcurrent (stall) detection
  • fuse and reverse polarity protection
  • voltage, current, temperature monitoring
  • optional rudder feedback
  • optional port/starboard end of travel input switches
  • serial communication with optical isolation, prevent ground loops and other electrical problems
  • waterproof connector to serial communication.
  • enclosure is 85x58x33mm (3.35"x2.28"x1.23") *extra optional
  • modular design, arduino based, open source software


I offer options for rudder feedback and end stop switches with waterproof connectors, however you may simply solder yourself wires to the circuit board for these which are labeled. These are both optional

I can also add a waterproof connector with 10k NTC sensor for the optional motor temperature, but you can also easily solder yourself. The controller itself has a temperature sensor.

datasheet

Suitable drive units:

  • tiller pilots wired directly to the motor, tested: autohelm, simrad tp22/tp32, tillermaster, marinepilot 1600
  • Wheel drive units tested: Raymarine ST4000+ MkII Wheel Drive
  • Any suitable rudder drive unit drawing up to 7 amps and stall up to 15 amp, including windshield wiper motors. Direction of travel must be reversed with polarity


This controller needs to be paired with a suitable autopilot computer such as tinypilot or openplotter running pypilot.

schematics

The optional clutch output is not usually needed because most tillerpilots and wheelpilots must be engaged manually.

$50.00
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