Lincoln Electric 11521 Manuale Utente
TABLE OF CONTENTS-THEORY OF OPERATION SECTION
E-1
E-1
Power MIG® 215XT
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-1
FIGURE E.1 BLOCK LOGIC DIAGRAM
LINE
SWITCH
SWITCH
RECONNECT
PANEL
PANEL
FAN
MOTOR
MOTOR
CONTROL BOARD
GAS
SOLENOID
SOLENOID
WIRE
SPEED
CONTROL
SPEED
CONTROL
SPOOL
GUN
SWITCH
WIRE
DRIVE
MOTOR
DRIVE
MOTOR
TACH
FEEDBACK
GUN TRIGGER
+
-
OUTPUT DIODE
BRIDGE
BRIDGE
+
-
NEGATIVE
TERMINAL
TERMINAL
CONTACTOR
CONT
ACT
OR
CONTROL
TAP SELECTOR
SWITCH
SWITCH
OUTPUT
CHOKE
CHOKE
POSITIVE
TERMINAL
TERMINAL
TRANSFORMER
THERMOSTAT
THERMOSTAT
OUTPUT BRIDGE
THERMOSTAT
THERMOSTAT
MAIN
TRANSFORMER
TRANSFORMER
OUTPUT
CAPACITORS
CAPACITORS
GUN
ASSEMBLY
ASSEMBLY
115V
RECEPTACLE
CIRCUIT
BREAKER
27.8 V
AC