Lincoln Electric SVM199-A ユーザーズマニュアル
TABLE OF CONTENTS-THEORY OF OPERATION SECTION
E-1
E-1
INVERTEC® V450-PRO
Theory of Operation ................................................................................................................................. Section E
FIGURE E.1 BLOCK LOGIC DIAGRAM
INPUT
CONTACTOR
INPUT
RECTIFIER
R
E
C
O
N
N
E
C
T
CONTROL BOARD
RIGHT
SWITCH
BOARD
LEFT
SWITCH
BOARD
MAIN
TRANSFORMER
CURRENT
SENSOR
CHOKE
OUTPUT
TERMINAL
OUTPUT
TERMINAL
POWER
BOARD
115VAC
RECEPTACLE
P
O
W
E
R
S
W
I
T
C
H
I
N
P
U
T
B
O
A
R
D
FAN
MOTOR
AUX.
TRANS.
AUX.
TRANS.
RECTIFIER
AUX.
RECONNECT
PRIMARY
CURRENT
SENSOR
WIRE FEEDER
RECEPTACLE
RS232
CONN.
THERMOSTATS
STATUS
LIGHT
THERMAL
LIGHT
CURRENT FEEDBACK
VOLTAGE FEEDBACK
65VDC
40VDC
CONTROL SIGNALS
PWM
CAPACITOR
VOLTAGE
FEEDBACK
PWM
DRIVE
VOLTAGE
SENSE
RECEPTACLE
#1
#2
S
W
I
T
C
H
DRIVE
FEEDBACK
VOLTAGE
CAPACITOR
INPUT
CONTACTOR
INPUT
RECTIFIER
R
E
C
O
N
N
E
C
T
CONTROL BOARD
RIGHT
SWITCH
BOARD
SWITCH
BOARD
LEFT
SWITCH
BOARD
SWITCH
BOARD
MAIN
TRANSFORMER
CURRENT
SENSOR
CHOKE
OUTPUT
TERMINAL
OUTPUT
TERMINAL
POWER
BOARD
BOARD
115VAC
RECEPTACLE
P
O
W
E
R
S
W
I
T
C
H
I
N
P
U
T
N
P
U
T
B
O
A
R
D
O
A
R
D
FAN
MOTOR
AUX.
TRANS.
AUX.
TRANS.
RECTIFIER
AUX.
RECONNECT
PRIMARY
CURRENT
SENSOR
WIRE FEEDER
RECEPTACLE
RS232
CONN.
THERMOSTATS
STATUS
LIGHT
THERMAL
LIGHT
CURRENT FEEDBACK
VOLTAGE FEEDBACK
65VDC
40VDC
CONTROL SIGNALS
PWM
CAPACITOR
VOLTAGE
FEEDBACK
PWM
DRIVE
VOLTAGE
SENSE
RECEPTACLE
#1
#2
S
W
I
T
C
H
W
I
T
C
H
DRIVE
FEEDBACK
VOLTAGE
CAPACITOR