English 7 English
Introduction
The welding machines of the
DIGISTEP C
enable:
Welding GMAW (MIG/MAG)
Welding FCAW-GS / FCAW-SS
WARNING
In order to weld the cored wires which requiring negative
polarity, polarity change kit must be purchased by user
(see "Accessories" chapter).
The following equipment has been added to
DIGISTEP 255C & 305C:
Operator’s
Manual
Work lead - 3m
Gas hose - 2m
Hose clamps – 2 units
Slow-blow fuse - 2A
Slow-blow fuse – 6,3A
Drive roll – V0.8/V1.0
The following equipment was installed to the
DIGISTEP 255C & 305C
(see Figure 1.):
1. Gun holder
2. Galvanized chains – 2 units x 0,7m
3. Eye bolts – 2 units
1
2
2
3
3
Figure 1.
For GMAW, FCAW-GS and FCAW-SS process, the
technical specification describes:
Type of welding wire
Wire
diameter
Recommended equipment, which can be bought by user,
was mentioned in the chapter "Accessories".
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.
Break for 4 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.
Minutes
or
decrease
Duty Cycle
When the machine is overheated the Thermal Overload
Indicator light will turn "ON" on the front panel and the
output of the machine will turn "OFF". When the machine
has cooled to a safe temperature the Thermal Indicator
Overload light will go out and the machine may resume
normal operation. Note: For safety reasons the machine
will not come out of thermal shutdown if the trigger on the
welding gun has not been released.
