Lincoln Electric INVERTEC V300-PRO SVM105-B Service Manual page 92

F-62
Should a machine under test be rejected for any reason requiring the removal of any mechanical part that could
affect the machine's electrical characteristics, or if any electrical components are repaired or replaced, the machine
must be retested.
NOTE: 50 Hz machines may be tested using 60 Hz power.
Input
Volts/Hertz
220/50 or 60
230/60
440/50 or 60
460/60
380/50 or 60
575/60
OCV at rated INPUT: V300-PRO, V300-I
MAXIMUM ACCEPTABLE OUTPUT AMPS (AT MINIMUM OUTPUT SETTINGS)
Output
Min. (Max. acceptable), all machines:
CC modes
CV modes
OUTPUT MINIMUM ACCEPTABLE VOLTS (AT MAXIMUM OUTPUT SETTINGS,
Min. Acceptable,
Max. — All Modes
1 phase @ 200A
3 phase @ 300A
18 VAC winding to Power Board J7 pins 5 and 6 Welding
terminals sw. remote
24 VAC winding to Control Board J2 pin 4 to lead 212
STANDARD CODES: (Test at Amphenol)
24 VAC without load, measure across pins C and D
42 VAC without load, measure across pins I and K
115 VAC without load, measure across pins A and J
TROUBLESHOOTING & REPAIR
RETEST AFTER REPAIR
INPUT IDLE AMPS AND IDLE WATTS
Single Phase
Max. Amps Max. Watts
2.75
3.00
1.38
1.50
1.67
—
12A @ 10V. (GTAW, SOFT, CRISP)
20A @ 19V. (FCAW, GMAW)
WITH FULL LOAD)
V300-I
380V 220/440V
— 38V
32V 36V
AUXILIARY TRANSFORMER — 50 Hz or 60 Hz
TEST POINTS
V300-PRO
Three Phase
Max. Amps
425 2.75
450 3.00
425
450
425
—
60-75V
V300-PRO
208V 230/460V
— 38V
34V 38V
F-62
Max. Watts
425
450
575V
36V
36V
RANGE
17-20 VAC
23-26.5 VAC
22-25 VAC
39-44 VAC
109-120 VAC