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Introduction
The welding machines of the CITOSTEP 355C enable:
Welding MGAW (MIG/MAG)
Welding FCAW-GS / FCAW-SS
The
following
equipment
CITOSTEP 355C:
Operator's Manual
Gun holder with screw material
Work lead - 3m
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.
The machine is protected from overheating by a
temperature sensor.
English
has
been
added
to
Break for 4 minutes
Gas hose - 2m
Hose clamp
Slow-blow fuse - 3A
Galvanized chain - 0,35m
Recommended equipment, which can be bought by user,
was mentioned in the chapter "Accessories".
Minutes
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.
CITOSTEP 355 C can only be connected to a mating
grounded receptacle.
The allowable input voltages are 3x230V 50/60Hz and
3x400V 50/60Hz (3x400V: 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.
Refer to points [1], and [18] of the images below.
7
or decrease
duty cycle
WARNING
230V
X11
W
V
U
X12
U
U
230V
0
400V
Z
Z
Y
X
Z
Figure 1.
English
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