Troubleshooting
- 67 -02.20 909.2710.1-06
code designation reason removal
E 29 EEProm checksum error data in EEPROM memory faulty/cor-
rupt
switch the machine off and on again,
exchange the MAPRO if necessary
E 30 Mains undervoltage 2 power unit 2 detected a too low bus
voltage
check mains voltage, mains rectifier,
pc-board PWRUP and DCDR
see page 60 for details
E 31 Communication error Master is not responding to Process switch the machine off and on again,
exchange pc-board MAPRO if neces-
sary
“?” the display only shows “?“ the display doesn‘t get any data from
the MAPRO
mains phase is missing
– no CAN bus connection between pc-
board DMR and pc-board MAPRO
– check flat ribbon cable betwenn
MAPRO and DMR or control cable of
interpass hose package
– check all phases from mains supply
see page 56 for details
“nop” no program no welding parameters available for
selected material-wire-gas combina-
tion (no reasonable combination)
select other material-wire-gas combi-
nation
CFG
ERR
“CFG ERR” is shown in
volt/amps display
wrong front panel connected (only at
P Basic)
connect the correct front panel (pc-
board MAT-BF)
blinking volt/amps display Overload, the power unit was electri-
cally overloaded, the machine is limit-
ing the max. power output
indication goes away together with the
hold LED
(*1) display the module temperatures in menu Extras > Diagnosis > Module temperatures
(*2) display the supply voltages in menu Extras > Diagnosis > Operating voltages
(*3) display the flow rate in menu Extras > Diagnosis > Flow rate cooling system
(*4) display the motor current in menu Extras > Diagnosis > W.Feeder motor current
(*5) display the configuration in menu Extras > Machine data > Configuration
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