13Ap1:6 Monitoring Gas Pressure; 13Ap1:7 The Can Bus - ESAB Aristo RoboFeed 3004w Service Manual

DESCRIPTION OF OPERATION

13AP1:6 Monitoring gas pressure

The RoboFeed is prepared for monitoring gas supply.
The control panel displays a fault code 32 if the inputs are open.
Inputs K1 – K2 are not used.

13AP1:7 The CAN bus

The circuit board includes a driver for the CAN bus, IC2, which looks after communication
with the U8 and with other units in the system.
Although the welding power source supplies a +12 V power supply to the U8, this is not used
on circuit board 13AP1. 0 V on the circuit board is connected to 0 V in the U8.
Starting sequence
On power-up, the board's CAN controller reads in the
bus speed from the micro processor: 400 kbit/s.
The circuit board displays the starting sequence from
power-up. LED1 lights red. Then LED1, LED2 and LED3
lights green.
When the board has been initiated, and the wire feed unit
is in the application program, LED1 flashes continuously
with a green light.
There is more information about the operation of the CAN bus in the service manual for the
power source.
0740 800 169
LEDs on circuit board 13AP1
- 16 - © ESAB AB 2014