Troubleshooting
- 56 - 02.20909.2710.1-06
9.7 Monitoring wire feed motor
The pc-board DMR has it‘s own microcontroller which is responsible for driving, controlling and monitoring
the wire feed motor.
Schematic
The current consumption and the tacho signal of the motor are monitored by the microcontroller. If the
current consumption of the motor is too high (e.g. if wire feed unit is blocked mechanically) or if the tacho
is not connected, the machine will stop and displays E08 (wire feed / tacho).
The DMR and the MAPRO are communicating via the CAN bus with the Master. If the communication is
interfered or jammed, the machine will stop and displays also E08.
Is one of the CAN bus wires is disconnected (loose connection) between MAPRO and DMR, the display (con
-
nected to the DMR) is only showing a “?”.
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