Lincoln Electric SQUARE WAVE IM607 Operator'S Manual Download

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INSTALLATION

SQUARE WAVE TIG 175

b) A 3/4

”

(19mm) galvanized pipe or a 5/8

”

(16mm)

solid galvanized iron, steel or copper rod driven
at least eight feet into the ground.

The ground should be securely made and the ground-
ing cable should be as short as possible using cable of
the same size as the work cable, or larger. Grounding
to the building frame electrical conduit or a long pipe
system can result in re-radiation, effectively making
these members radiating antennas.

6. Keep cover and all screws securely in place.

7. Electrical conductors within 50 ft (15.2m) of the

welder should be enclosed in grounded rigid metal-
lic conduit or equivalent shielding, wherever possi-
ble. Flexible metallic conduit is generally not suit-
able.

8. When the welder is enclosed in a metal building, the

metal building should be connected to several good
earth driven electrical grounds (as in 5 (b) above)
around the periphery of the building.

Failure to observe these recommended installation
procedures can cause radio or TV and electronic
equipment interference problems and result in unsatis-
factory welding performance resulting from lost high
frequency power.

INPUT SUPPLY CONNECTIONS

Be sure the voltage, phase, and frequency of the input power
is as specified on the rating plate, located on the rear of the
machine.

1. Connect terminal marked to earth ground per National

Electric Code or any local codes.

2. Connect the supply lines to the line switch terminals as

shown in figure A.1.

3. Install in accordance with all local and national electrical

codes.

The Square Wave TIG is supplied with one cord connector.
The cord connector provides a strain relief for the input power
cord as it passes through the rear access hole. The cord
connector is designed for a cord diameter of 11.4 to 18.0mm
(.450 to .704 in.). Remove the plastic compression nut from
the cord connector and place it on the cord. (Note: If you are
connecting the machine for 220-240V operation you will have
to obtain a different cord connector. The new connector
should fit the existing knock out which is 33mm (1.3 in.) in
diameter. Strip away outer jacket of cord, trim fillers and
insert conductors through cord connector. The jacketed por-
tion of the cord must go through the cord connector. Slide the
plastic compression nut up the cord to the connector and turn
it until it tightens on the input cord.
Refer to the

Technical Specifications

page at the beginning

of this section. Fuse the input circuit with the recommended

INPUT RECONNECT PROCEDURE

On multiple input voltage welders, be sure the machine is
connected per the following instructions for the voltage being
supplied to the welder.

Failure to follow these instructions can cause immediate fail-
ure of components within the welder.

--------------------------------------------------------------------------------

Multiple voltage models are shipped connected for the high-
est voltage. To change this connection refer to the following
instructions.

For 220-240V connection (Refer to figure A.1 and INPUT SUPPLY
CONNECTIONS. A different cord connector must be obtained when
connecting to this voltage):

1. Remove the sheet metal cover.

2. Disconnect the copper link between the switch stud and H4.

3. Connect the copper link from the switch stud to H2 and

tighten nuts securely.

4. Replace sheet metal cover and all screws.

For 380V connection (Refer to figure A.1):

1. Remove the sheet metal cover.

2. Disconnect the copper link between the switch stud and H4.

3. Connect the copper link from the switch stud to H3 and

tighten nuts securely.

4. Replace sheet metal cover and all screws.

For 400-415V connection (Refer to figure A.1):