ESAB 350mpi User Manual

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5.1 GENERAL
ELECTRIC SHOCK CAN KILL! Before attempting
inspection or work inside the power source, be
sure that all primary power to the machine has
been externally disconnected and the line (wall)
disconnect switch or circuit breaker is open.
5.2 FUNCTIONALITY CHECK (TABLE 5-1)
The 350mpi Functionality Check should be used to
verify proper power source operation. Before perform-
ing the following checks, disconnect the remote con-
nections (WIRE FEEDER and REMOTE CONTROL)
from rear of power source and make sure there is no
load attached to the output terminals.
Table 5-1. 350mpi Functionality Check
YES NO
1. Are input power supply connections properly secured? Go to next
step
2. If using 3-phase power, are all three primary leads securely connected to Go to next Refer to
primary power switch. step. Section 2.
If using single-phase power, are black and white leads securely connected to
primary power switch?
.
3. Position power source controls as follows: --- --
PROCESS SELECTOR - STICK
CURRENT - MINIMUM
ARC FORCE - MINIMUM
4. Turn primary power switch to ON position. Does MAIN POWER light Go to next
illuminate? step.
5. Do digital meters show about 68.0 volts and 00.0 amps? Go to next
step.
7. Fan is not energized. Go to next
step.
8. Place PANEL/REMOTE switch in the PANEL position. Do digital meters Go to next Power source
show 00.0 volts and 00.0 amps? step. faulty.
9. Place PROCESS SELECTOR to MIG position.
10. Short electrode to work table , hold in place and return PROCESS SELECTOR to STICK. Does
digital meter show approximately 50 amps? Go tonext
step.
11. Rotate ARC FORCE fully clockwise. Does digital meter show about 150 Go to next
amps? step.
12. Rotate CURRENT fully clockwise. Does digital meter show about 500 Go to next
amps? step.
ESAB 350mpi has passed the functionality check. Problem may be in interconnection of gas lines or polarity of output
connectors. For technical assistance, refer to the Communication Guide located on the last page of this manual.
SECTION 5 TROUBLESHOOTING

ESAB 350mpi Specifications

General

Brand	ESAB
Model	350mpi
Category	Welding System
Language	English