Saf-Fro DIGISTEP 255C Manuel D'utilisation page 12

Input Supply Connection
WARNING
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.
For machines having the following NUMBER:

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.

Reconnect X11 and X12 according to the diagram
below:
Figure 2.

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.
Output Connections
Refer to points [6], [7] and [8] in the Figure 3.
English
Controls and Operational Features
1. Power Switch ON/OFF (I/O): Controls the input power
to the machine. Be sure the power source is
connected to the mains supply before turning power
on ("I"). After input power is connected and the power
switch is turned on, the power switch will light up to
indicate the machine is ready to weld.
2. Thermal Overload Indicator: This lamp will
light up when the machine is overheated
and the output has been turned off. This
can occur if the ambient temperature is
above 40°C or the duty cycle of the machine has been
exceeded. Leave the machine on to allow the internal
components to cool, when the lamp turns off normal
operation is possible.
3. Welding Load Voltage Switch: Adjust the
welding load voltage.
Do not switch Welding Load Voltage [3] during welding.
4. WFS (Wire Feeding Speed) Control Knob:
It enables continuous control of wire
feeding speed in the range from 1 to
20 m/min.
5. Digital Display Panel: Available as an option(see
"Accessories" chapter - Only DIGISTEP 255C).
6. EURO Socket: For connecting a welding gun (for
GMAW, FCAW-GS / FCAW-SS process).
8
Figure 3.
WARNING
English