Troubleshooting
- 66 -
02.20
909.2710.1-06
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)
E 14
Op. voltages error
internal MAPRO supply voltage is too
low (24V supply < 17V)
check mains voltage and control
transformer (*2)
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
E 18
Overload protection
safety shutdown to protect electrical
components
–
let machine cool down in standby
–
check temp. sensor
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
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
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
E 23
Mains overvoltage
power units detected a too high bus
voltage
check mains voltage, mains rectifier
and pc-board DCDR
E 24
Overcurrent protection2
power consumption of power unit 2 is
too high
–
check MOSFETs and pc-board DCDR
–
check output diodes
E 25
Power module detection
wrong DIP switch setting on pc-board
DCDR
–
check machine configuration (*5)
–
check DIP switch on pc-board DCDR
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
