Troubleshooting
- 66 - 02.20909.2710.1-06
code designation reason removal
E 13 Temp. sensor error no increase of the temperature was
detected after some welding time:
Temp. sensor is faulty or has a loose
contact
– check sensor resistor value and wir-
ing of the sensor
– check temperature (*1)
see page 48 for details
E 14 Op. voltages error internal MAPRO supply voltage is too
low (24V supply < 17V)
check mains voltage and control
transformer (*2)
see page 49 for details
E 15 Error configuration
sub code #1 - #5
wrong or faulty pc-board, wrong soft-
ware
– check connecor X26 on pc-board
MAPRO
– switch the machine off and on again
– contact Lorch Service if necessary
sub code #10 setting of DIP switch 4 does not
match to serial number of the ma-
chine (only at P3000 mobile)
check DIP switch 4 on MAPRO
sub code #14 operating system version of the Pro-
cess does not match to the version of
the Master
reprogram the MAPRO with the correct
operating system versions
sub code #15 the software version does not match
to the serial number of the machine
install the correct software version
E 16 Overcurrent protection1 power consumption of power unti 1 is
too high
– check MOSFETs and pc-board DCDR
– check output diodes
see page 59 for details
E 18 Overload protection safety shutdown to protect electrical
components
– let machine cool down in standby
– check temp. sensor
see page 48 for details
E 20 Overvoltage sec. Process reports a too high output
voltage (>100V) or no voltage
check wiring of power unit, especially
wiring from output sockets to pc-
baord MAPRO
see page 55 for details
E 21 Output voltage/current external current or voltage – check wiring of current sensor VAC
and pc-board DP-UFI-BO
– check VAC, replace VAC sensor if
necessary
see page 50 and page 55 for
details
E 22 Mains undervoltage 1 power unit 1 detected a too low bus
voltage
check mains voltage, mains rectifier,
pc-board PWRUP and DCDR
see page 60 for details
E 23 Mains overvoltage power units detected a too high bus
voltage
check mains voltage, mains rectifier
and pc-board DCDR
see page 60 for details
E 24 Overcurrent protection2 power consumption of power unit 2 is
too high
– check MOSFETs and pc-board DCDR
– check output diodes
see page 59 for details
E 25 Power module detection wrong DIP switch setting on pc-board
DCDR
– check machine configuration (*5)
– check DIP switch on pc-board DCDR
see page 61 for details
E 27 no program (DSP) no welding data (welding character-
istics) are present: the torch trigger
switch was pressed with an invalid
material-wire-gas combination (nop)
– select valid material-wire-gas com-
bination or
– transfer welding programs to ma-
chine again
E 28 Error EEPROM access to EEPROM memory not pos-
sible (hardware)
switch the machine off and on again,
exchange the MAPRO if necessary
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