Saf-Fro BUFFALO 405X, Operator'S Manual

Page: 11 / 157

English 7 English
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.
60% duty cycle:
Welding for 6 minutes. Break for 4 minutes.
Excessive extension of the work duty cycle will cause the
thermal protection circuit to activate.
The welding machine is protected from overheating by a
thermostat. When the machine is overheated the output
of the machine will turn “OFF“, and the Thermal Indicator
Light will turn “ON“. When the machine has cooled to a
safe temperature the Thermal Indicator Light will go out
and the machine may resume normal operation.
Minutes or decrease
duty cycle
Input Supply Connection
Installation and mains outlet socket shall be made and
protected according to appropriate rules.
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 and 3x400V
50Hz (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 main supply voltage:

Ensure that the input cable must be disconnected from
the main supply and the machine switched OFF.

Remove the top panel from the machine.

Reconnect X12 according to the diagram below.

Replace the top panel.
Make sure the amount of power available from the input
connection 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, 3, 12 and 13 of the images below.
Output Connections
Refer to points 5, 10 and 11 of the images below.
Controls and Operational Features