Diagrams
Electronics
Layout
CAN
Power
Pi A
Pi B
VESC A
Central
em-trak
Release B
Aft
Wing
Ewellix
Transom
BMS
Battery
<- Electronics
Ewellix CAHB-22
No team box - plain DC - driven from central A3 - GitBoat sec 5.6 / A14
FROM CENTRAL A3
12 AWG motor pair from the central reversing drive.
12 - Motor
Position-feedback cores back to central.
13 - Feedback
Chassis / bond path at the actuator mount - not a cable entry.
B - bond
DRIVE IN CENTRAL
De-energized CLOSED so a dead central node still feeds the actuator.
Power-cut
de-energized CLOSED
24 V H-bridge or reversing relay pair that powers the motor leads - lives in the central node.
Reversing drive
H-bridge / relay pair
Lets the node see a stall and cut drive within seconds.
Current sense
stall cut reflex
24 V off-bus
SCOPE
Boat 2 reference only - cancelled for Boat 1 when Ewellix was chosen.
Electrak HD
Boat 2 only - cancelled Boat 1
ACTUATOR - OFF-BUS - PLAIN DC
Own lead back to the central node.
Actuator FB
own lead to central
Boat 1 primary rudder actuator - plain DC, not a bus device, no team box.
Ewellix CAHB-22
F4E-3000529-BAA0PT-000 - 10 kN
self-locking screw - built-in FB
no CAN - no J1939 on hull
Mechanical path from actuator rod to stock.
Rudder linkage
Primary rudder - encoder A lives here. Mechanical mark, not a cable entry.
Rudder stock
position FB
ANGLE CROSS-CHECK
Magnetic encoder on the rudder stock - second angle path.
Encoder A - AS5048A
aft trunk - not on actuator
PWM into a Nucleo timer pin via the aft junction sensor trunk (A6 entry 18).
Aft 18
CANH
CANL
power
USB
Ethernet
UART
I2C
GPIO
coax
SPI
RF (wireless)