LORCH MicorMIG 300, Service Manual

Page: 67 / 68

page 67
Code designation cause remarks
E33-01 Unsymmetrical bus voltage The difference between the bus voltages
of the power modules 1 and 2 is >60V.
-check power modules
- check the flat ribbon cable between
MAPRO and DRV
-check connector X17 on DRV
for details see page 48
E33-02 Unsymmetrical bus voltage Startup The difference between the bus voltages
of the power modules 1 and 2 is >60V at
startup.
E34-00 Fan current The current consumption of the fans is
too high.
-check fans and their wiring
for details see page 58
E41-01 Mains loss The primary DSP couldn’t detect a mains
supply.
-check mains supply
-check wiring between NEFI and DRV
(X14)
for details see page 58
E48-00 End of Demo mode The maximum test time of the demonstra -
tion mode has ended.
Restart the machine
Lines in display “= = =” CAN bus connection between front panel
and MAPRO is jammed.
-Check CAN bus connection/wires
-measure the CAN bus (see page 61)
-replace MAPRO and/or front panel if
necessary