Section e - theory of operation – Lincoln Electric V155-S User Manual
Page 25
TABLE OF CONTENTS-THEORY OF OPERATION SECTION
E-1
E-1
INVERTEC® V155-S
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-1
FIGURE E.1 — BLOCK LOGIC DIAGRAM.
CONTROL BOARD
W05X0708-1
(SCHEMATIC: X0708)
JP1
INPUT BOARD
W05X0701
(SCHEMATIC: X0701)
115/230Vac
50/60 Hz
ON/OFF SWITCH
5
2
N
L
G
WIRE TIE
4
1
BLUE
WHITE
WHITE
BLUE
WHITE
BLACK
AC2
AC1
PE
PWR2
PWR1
PWR4 PWR3
DC+
RED
DC-
BLACK
PCB CONNECTOR CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF P.C. BOARD)
RIBBON CABLE
TWISTED CABLE
1
FAN
WHITE
RED
4
2
4 PINS
1
PE
RECONNECT
BOARD
W05X0408
(SCHEMATIC: X0408)
BLACK
JP4
BLUE
16
16 PINS
15
JP1
JP1
DC+
RED
DC-
BLACK
Y/G PE
INVERTER BOARD
W05X0519
(SCHEMATIC: X0519)
BLACK
RED
JP2
WHITE
W
HIT
E
P1
N1
BL
AC
K
RE
D
SHUNT
-
+