20Ap1:3 The Can Bus - ESAB Aristo Mig 3001i Service Manual

20AP1:3 The CAN bus
A standardised communication (CAN - Controller Area Network) bus is used
for communication between the units of the machine. Communication speed is
400 kbit/s.
The CAN bus is connected in parallel to the connectors CAN_A and CAN_B.
The +12V_Can and 0V_Can power supply is unregulated and is galvanically
isolated from other parts of the control board.
The shell of the CAN-connectors is connected to 0V_Can.
GND in the diagram above is connected to the power source chassis.
Voltage regulator VR1 supplies a 5 V power supply to the CAN circuits on
20AP1.
Bus communication circuits to and from the control board
S0740 800 196/E101019/P76
- 28 -
ca41_20_1