ESAB ESP-400C - Schematic Diagrams

SECTION 6 Troubleshooting
ESP 400C and 600C Plasma Power Sources
6-20
6.5 ESP-400C Schematic Diagrams - Drawing 1 - Part1
1a
2a
3a
4a
5a
6a
7a
8a
9a
BLK
BLK
GRY
GRY
LOC SYM Descrip LOC SYM Descrip LOC SYM Descrip
1 M1,2 Motor ,fan 1/3 hp 1 C14-16 Capacitor .033uf 630v 2 C24 Capacitor 5uf 600vdc
1 M3 Motor, fan 230v 50/60hz 1 D19,20,23 Module diode rectifier 630v 2 C13,15,17 Capacitor .033uf 630v
1 T1 Transformer main 1 R12,13 Resistor 8ohm 300w 2 K2 Contactor 3 pole 90A
1 T2 Transformer control 1 D2,4 Module diode Red 2 K4 Contactor 3 pole 40A
1 T5-8 Transformer 117/12/12/24ct 1 R5,7 Resistor 10ohm 50w 2 PL1 Lamp neon wht
1 K1A,B,C Contactor 3pole 90A 1 R53,54 Resistor 2ohm 25w 2 PL2 Lamp neon wht
1 PCB2 PC board circuit IGBT Driver 2 TD1,2 Transducer Current 2 PL3 Lamp indicator Amber
1 Q1-2 Module IGBT 600A 600V 2 PCB3 PC board IGBT driver 2 TS4,5,6 Switch thermal 176 deg.F
1 C19,20 Capacitor 27uf 1200vdc 2 Q3,4 Module IGBT 600A 600v 2 TS7 Switch thermal 194 deg.F
1 C23 Capacitor 5uf 800vdc 2 C21,22 Capacitor 27uf 1200vdc 2 TS1,2,3 Switch thermal 176 deg.F