Circuit Diagram Of Bmk-12 W; Wiring Diagram, Primary (Power Circuit, 400 Volt Standard); Wiring Diagram, Secondary (Welding Circuit) - Soyer BMK-12 W Operating Instructions Manual

2.5

Circuit diagram of BMK-12 W

2.5.1

Wiring diagram, primary (power circuit, 400 volt standard)

L1
400vac
50/60Hz
L2
32AT
L3
PE
mains
filter
Ill. Primary wiring diagram, drawing no.: 139-902-003
2.5.2

Wiring diagram, secondary (welding circuit)

welding transfo
(secondary)
U2
V2
W2
KL30
KL31
transformer
thermal switch
Ill. Secondary wiring diagram, drawing no.: 139-902-010
20
main switch
core 36
2 turns
1 2
5 6
7 8
3 4
2AT
(F2 front panel)
D2
holding loop
X1
control transfo
2 2
230V
1
0V
8V red +5V
12V blue ignition
12V white SOW
8V black sync
400V
18V green +15V
70V brown magnet
pre - current-
diode
resistor
40 HF 40
1R5
welding thyristor
139-902-XXX
BMK-8
BMK-10,A,U
BMK-10LC,A
BMK-12W,A,U
3 4
1 2
3 4
1 2
SO1200
load relay
(F1 front panel)
315mAT
1
139-902-xxx
BMK-10LC
BMK-12W
Subject to technical changes
protective diode
SKN 70/08
PC Board
SO1200
Subject to technical changes
BMK-12 W
welding transfo
primary 400vac
U
V
W
X2
fan
2 2
1 1
earth (+)
earth (+)
gun pistol (-)
core20
2-turns