Introduction; Installation And Operator Instructions - Lincoln Electric SAF-FRO DIGISTEP 355S Operator's Manual

Introduction

The wekding sources of the DIGISTEP S family are
designed to work with wire feeder:

WF 24

WF 24S
DIGISTEP S + WF enables welding:

MGAW (MIG/MAG)

Installation and Operator Instructions

Read this entire section before installation or operation
of the machine.
Location and Environment
This machine will operate in harsh environments.
However, it is important that simple preventative
measures are followed to assure long life and reliable
operation.

Do not place or operate this machine on a surface
with an incline greater than 15° from horizontal.

Do not use this machine for pipe thawing.

This machine must be located where there is free
circulation of clean air without restrictions for air
movement to and from the air vents. Do not cover
the machine with paper, cloth or rags when switched
on.

Dirt and dust that can be drawn into the machine
should be kept to a minimum.

This machine has a protection rating of IP23. Keep it
dry when possible and do not place it on wet ground
or in puddles.

Locate the machine away from radio controlled
machinery. Normal operation may adversely affect
the operation of nearby radio controlled machinery,
which may result in injury or equipment damage.
Read the section on electromagnetic compatibility in
this manual.

Do not operate in areas with an ambient temperature
greater than 40°C.
Duty cycle and Overheating
The duty cycle of a welding machine is the percentage of
time in a 10 minute cycle at which the welder can
operate the machine at rated welding current.
Example: 60% duty cycle:
Welding for 6 minutes
Excessive extension of the duty cycle will cause the
thermal protection circuit to activate.
Minutes
English
Break for 4 minutes
or decrease
duty cycle
The following equipment has been added to DIGISTEP
355S, 425S, 505S:

Operator's Manual

Work lead - 3m

Slow-blow fuse - 3A
Recommended equipment, which can be bought by
user, was mentioned in the chapter "Accessories".
Input Supply Connection
Only a qualified electrician can connect the welding
machine to the supply network. Installation the outlet
plug to power lead and connecting the welding machine
had to be made in accordance with the appropriate
National Electrical Code and local regulations.
Check the input voltage, phase, and frequency supplied
to this machine before turning it on. Verify the
connection of grounding wires from the machine to the
input source.
The allowable input voltages are 3x230V 50/60Hz and
3x400V 50/60Hz (400V: factory default). For more
information about input supply refer to the technical
specification section of this manual and to the rating
plate of the machine.
If it is necessary to change the input voltage:

The input cable must be disconnected from the
mains supply and the machine switched OFF.

Remove the left side panel from the machine.

Reconnect X11 and X12 according to the diagram
below:
400V
X11
X12
W W V V
230V 230V 0 0 400V 400V
Y Y X X

Replace the left side panel.
Make sure that the amount of mains power available
from the input supply is adequate for normal operation of
the machine. The necessary delayed fuse (or circuit
breaker with "D" characteristic) and cable sizes are
indicated in the technical specification section of this
manual.
When powering welder from a generator be sure to turn
off welder first, before generator is shut down, In order to
prevent damage to welder!
7
WARNING
230V
X11
W V
X12
U U
230V 0 400V
Z Z
Y X
Figure 1.
WARNING
U
Z
English