PCB276
CN1
CN2
CN3
CN4
-12 V
12 V
5 V
0 V
Output’
s
POWER SUPPLY
PCB
12 V
0 V
0
220 V ~
Chasis
Input
Grey
Grey
Green
Red
Black
Black
Pink
Orange
Blue
PCB271B
CN1
CN5
CN7
CN2
CN10
CN8
CN6
CN4
CN9
Orange
L. Gray
L. Gray
D. Gray
Blue
WELDING CURR.
300
PCB255
Capacitive Filter
4K7 Lin.
T1
(Main Transformer)
Output Terminal (-Ve)
Output Terminal (+Ve)
DCL1
415-V, 3-Ph, INPUT
Ferrite
Beads
CONNECTION DIAGRAM OF IR300/400/500
AC 220-V
Bridge
CT
o
90
C
1uf /250 X2
0.1uf /250 X2
220 Volt /14 (431/14)
(July, 2014)
LINK
LINK
IGBT
& DRIVER
SET
(CHOKE)
Ferrite
Beads
4K7 2W
2 X (431/14)
2 X (100R 2W)
.1 / 275 X2
2 X (100R 2W)
.1 / 275 X2
2200/16
NC
4x 100K2W
300A
400A
500A
Machine
PCB
275A
275B
275B
PCB216
Note: #
DCL
Capacitor