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 IDLE AMPS AND IDLE WATTS

Input

Single Phase

Three Phase

Volts/Hertz

Max. Amps

Max. Watts

Max. Amps

Max. Watts

220/50 or 60

2.75

425

2.75

425

230/60

3.00

450

3.00

450

440/50 or 60

1.38

425

460/60

1.50

450

380/50 or 60

1.67

425

575/60

—

OCV at rated INPUT: V300-PRO, V300-I

60-75V

MAXIMUM ACCEPTABLE OUTPUT AMPS (AT MINIMUM OUTPUT SETTINGS)

Output

Min. (Max. acceptable), all machines:

CC modes

12A @ 10V.

(GTAW, SOFT, CRISP)

CV modes

20A @ 19V.

(FCAW, GMAW)

OUTPUT MINIMUM ACCEPTABLE VOLTS (AT MAXIMUM OUTPUT SETTINGS,

WITH FULL LOAD)

Min. Acceptable,

Max. — All Modes

V300-I

V300-PRO

1 phase @ 200A

380V

220/440V

208V

230/460V

575V

—

38V

—

38V

36V

3 phase @ 300A

32V

36V

34V

38V

36V

AUXILIARY TRANSFORMER — 50 Hz or 60 Hz

TEST POINTS

RANGE

18 VAC winding to Power Board J7 pins 5 and 6 Welding

17-20 VAC

terminals sw. remote

24 VAC winding to Control Board J2 pin 4 to lead 212

23-26.5 VAC

STANDARD CODES: (Test at Amphenol)

24 VAC without load, measure across pins C and D

22-25 VAC

42 VAC without load, measure across pins I and K

39-44 VAC

115 VAC without load, measure across pins A and J

109-120 VAC

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