Pc-Board Dk-Mapro - LORCH V Series Service Manual

Pc-board DK-MAPRO

The pc-board DK-MAPRO is responsible for the welding sequence and is managing the process control of the
V-Series
(MAPRO = MAster-PROcess)
Functions
- Logicfunctions of the welding process
- generating and monitoring supply voltages
- driving powerup-relais
- driving power unit/units
- driving ignition device
- monitoring control and operating elements (DK-ACI40/DK-DCI40, remote control, torch buttons)
- driving solenoid valve
- driving fans
- driving waterpump
- monitoring flowmeter
- monitoring mains- and output voltage
- generating signal „welding current on"
- managing communications between PC and machine
- managing and storage of all welding parameters
- CAN-bus
LEDs :
LED state
1 (green) flashing (half freq. of LED5)
2 (red) off
3 (green) on
4 (red) off
5 (green) flashing
6 (green) flashing
LED state
1 (green) never on
2 (red) on
3 (green) off
4 (red) on
5 (green) never on
6 (green) never on
If the LEDs are indicating a malfunction which can not be relieved by switching the machine off and
on again, it is recommended that the pc-board DK-MAPRO is exchanged.
DIP switch
The DIP switches 1-3 are needed for pro-
gramming the DSP (Process) via serial port.
The DIP switch 4 is set due to the type of
housing as V mobile or V driveable.
DIP switch ON
1-3 serial program. mode
4 config. V mobile
normal
meaning
CPLD ok
Digital Signal Processor (DSP) ok
supply voltage 3.3V ok
Microcontroller ok
DSP is working
Microcontroller is working
malfunction
meaning
CPLD not working
DSP not working
supply voltage 3.3V missing : check 18V~ of control transformer X9/1 X9/2
Microcontroller not working
DSP not working
Microcontroller not working
Overview fuses
OFF
normal operation
config. V (driveable)
fuse value [A]
Si 6 1
Si 7 2,5
Si 11 1
safeguarding
fans (power unit)
cooling unit (pump)
cooling unit (fans)
page 7