Kemppi Mastertig MLS 3003 ACDC Service Manual page 16

Pre-inverter (PFC) card Z004
Functions and connectors:
- rectifies input input ac-voltages
- provides soft start feature
- soft-start ptc-resistor
- soft start relay
- input over voltage, under voltage and phase missing detection
- increases rectified input voltage to 725Vdc
- topology boost with two parallel paths
- switching frequency 25kHz
- maximum igbt current 40A peak
- output power 10kW with 230Vac supply
Factory settings
for jumpers:
- X17 (1-4) = off
- X17 (2-5) = off
- X17 (3-6) = off
X17 (1-4)
no faults
X17 (2-5)
no freq. sweep
X17 (3-6)
pfc on
H1 reference
no visual meaning
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