Lincoln Electric POWERWAVE 655/R Service Manual page 37

POWER WAVE 655/R
INPUT
CR1
RECTIFIER
SW1
INPUT
BOARD
A
CONTACTOR AND PRECHARGE
CONTROL SIGNALS FROM
CONTROL BOARD
2
FROM CONTROL
4
BOARD
V
AUX
A
RECONNECT
C
RELAY
380-
115 VAC
415
A
440-
460
550- 52 VAC
575
T1
230 VAC
WATER
COOLER
115 VAC
RECP.
115 VAC
T2
IGBT DRIVE
FROM
CONTROL
BOARD
CAP. V/F
FEEDBACK
LEFT
SWITCH
BOARD
HARMONIC
FILTER
POS
IGBT DRIVE
FROM
CT CURRENT
CONTROL
C TO CONTROL
BOARD
BOARD
NEG
RIGHT
SWITCH
CAP. V/F
FEEDBACK
BOARD
67A
S1
VOLT
67B
SENSE
S6
VOLTAGE SENSE
BOARD
OUTPUT
VOLTAGE SENSE SELECT
ARC LINK
FEED 40 VDC
40 VDC
HEAD
BOARD
115 VAC
FAN
65 VDC
CONNECTION
S6
TO WIRE
DC
BUS BOARD DRIVE
RECTIFIER
BUS
BOARD
40 VDC
40 VDC
Auxiliary
40 VDC
Fan
ARC LINK
WIRE
S1
FEEDER
RECP.
POWER WAVE 655/R
MAIN
TRANSFORMER
OUTPUT DIODES
D1 -D4
DEVICE NET
TO
ETHERNET/
S5
LEFT
S.B.
GATEWAY
CONNECTION
TO
BOARD
ROBOT
DRIVES
ARC LINK
+5V RS232
CONTROL
+5 V ARC LINK
BOARD
POWER
+5V SPI
BOARD
+15V SPI
+5 V
+15 V
-15 V
LEFT CT RIGHT CT
CURRENT
CURRENT
FB
FB
Figure E.5
CURRENT
TRANSDUCER ELECTRODE
TERMINAL
+
+
WORK
OUTPUT
TERMINAL
CHOKE
C
U
R
R
TO
E
RIGHT
N
S.B.
T
F
B
TO FAN RELAY
IGBT
CONTACTOR AND
PRECHARGE
CONTROL SIGNALS
THERMOSTATS
S2 WORK
SENSE
S3
RS232
LEFT S.B.
CAP. V/F
RIGHT S.B.
CAP. V/F
STATUS THERMAL
LIGHT LIGHT