1 service manual fitweld 300 version 1.2.
2 technical data 4 x 1,5 mm² (5 m) / 10 a delayed connection cable / fuse filler wires 0,8 – 1,2 mm 0,8 – 1,2 mm 0,8 – 1,2 mm 1,0 – 1,2 mm fe solid fe cored ss al 14,5 kg weight external dimensions (l x w x h) 457 x 226 x 339 mm 200mm spool, max ø 0,85 mig efficiency at max. Current 0,95 mig power r...
3 user interface 2 3 4 6 1. Welding voltage adjustment 2. Wire feeding adjustment 3. On signal lamp 4. Overheat protection lamp 5. No gas warning lamp 6. Euro connector front plate 1 5 9 7 8 back plate 7. Gas connector 8. Main switch 9. Ground cable connector 12 10 11 13 spool room 10. 2t no gas/2t/...
4 construction z002 z001 p001 a001 gas valve wire feeder motor cooling fans gas pressure switch gas flow adjustment tip if machines cover plate screws thread fails you could change pt screws diameter to 5,5mm - 6mm. Note! Protective earth conductivity test must be performed at earth points on both t...
5 main circuit diagram.
6 main circuit card z001 igbt-module current transformer emc filtering primary rectifier gate transformers - emc filtering - primary rectifier and dc -link charging ptc - h –bridge (frequency 27khz) - gate transformers and gate drivers - auxiliary voltage 15vdc - over voltage sensing from dc-link - ...
7 main circuit card z001 measurement points dc link - dc link + l1,l2 and l3 dc-link voltage (with kemppi multipower): digital multimeter 1. Feed 22 vac to auxiliary transformers secondary connector from kemppi multipower (connector must be connected) 2. Measure value from dc-link test points by dig...
8 secondary rectifier z002 measurement points diode branch a diode branch b common point resistor a resistor b secondary diodes: 1. Measure diode branches one at the time from transformer (red test probe) to common point (black test probe) values: 0,3 – 0,5 vdc 2. Measure diode branches one at the t...
9 wire feeder motor control card a001 adjustments wire feed speed maximum: 1. Adjust wire feed speed potentiometer to maximum 2. Feed wire 10 second by triggering the torch 3. Measure fed wire length 4. Should be 16,7% of 18m/min (3m/min) - if wire feed speed is offset, adjust trimmer and repeat ste...
10 panel card p001 functions - supply voltage 24vdc filtering - generating reference voltage 3,3vdc - voltage adjustment by potentiometer - wire feed adjustment by potentiometer - start signal throughput (for optional usage) - three leds: on, overheat protection and no gas gas pressure switch s002 f...
11 installation of semiconductors the installation surfaces must be clean, even very small particles (0,050mm) between the surfaces increase the gap between heat sink and module, causing module overheating and possibly destruction. Heat transfer paste is spread as an even layer about 0,1 mm thick, o...
12 notes.
