Installation And Operator Instructions - Lincoln Electric INVERTEC 135S Operator's Manual

Installation and Operator Instructions

Read this entire section before installation or operation of
the machine.
Location and Environment
This machine can 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:

135S: IP21

150S: IP23

170S: 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.
Input Supply Connection
Check the input voltage, phase, and frequency supplied to
this machine before turning it on. The allowable input
voltage is indicated in the technical specification section of
this manual and on the rating plate of the machine. Be
sure that the machine is grounded.
Make sure the power available at the input connection is
adequate for normal operation of the machine. The fuse
rating and cable sizes are both indicated in the technical
specification section of this manual.
Input Supply From Engine Driven Generators

135S:
This machine is not designed to operate on engine driven
generators. Operation of this machine with engine driven
generators may damage the machine.

150S / 170S:

The machines are designed to operate on engine
driven generators as long as the auxiliary can supply
adequate voltage, frequency and power as indicated
in the "Technical Specification" section of this manual.
The auxiliary supply of the generator must also meet
the following conditions:

Vac peak voltage: below 410V.

Vac frequency: in the range of 50 and 60Hz.

RMS voltage of the AC waveform: 230Vac ± 15%.
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WARNING
It is important to check these conditions because
many engine driven generators produce high voltage
spikes. Operation of this machine with engine driven
generators not conforming to these conditions is not
recommended and may damage the machine.
Output Connections
A quick disconnect system using Twist-Mate
plugs is used for the welding cable connections. Refer to
the following sections for more information on connecting
the machine for operation of stick welding (MMA) or TIG
welding.

(+) Positive Quick Disconnect:
connector for the welding circuit.

(-) Negative Quick Disconnect:
connector for the welding circuit.
Stick Welding (MMA)
First determine the proper electrode polarity for the
electrode to be used. Consult the electrode data for this
information. Then connect the output cables to the output
terminals of the machine for the selected polarity. Shown
here is the connection method for DC(+) welding.
Connect the electrode cable to the (+) terminal and the
work clamp to the (-) terminal. Insert the connector with
the key lining up
approximately ¼ turn clockwise. Do not over tighten.
For DC(-) welding, switch the cable connections at the
machine so that the electrode cable is connected to (-)
and the work clamp is connected to (+).
TIG Welding
This machine does not include a TIG torch necessary for
TIG welding, but one may be purchased separately.
Refer to the accessories section for more information.
Most TIG welding is done with DC(-) polarity shown here.
If DC(+) polarity is necessary switch the cable
connections at the machine.
Connect the torch cable to the (-) terminal of the machine
and the work clamp to the (+) terminal.
connector with the key lining up with the keyway and
rotate approximately ¼ turn clockwise.
tighten. Finally, connect the gas hose to the gas regulator
on the cylinder of gas to be used.
5
TM
Positive output
Negative output
with the keyway and rotate
Insert the
Do not over
cable
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