Lincoln Electric IM10006 manual Safety Precautions Electric Shock can Kill, Select Proper Location

A-2 INSTALLATION A-2

Read entire Installation Section before installing the PLASMA 20.

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK CAN KILL.

•Only qualified personnel should perform this installation.

•Only personnel that have read and understood the PLASMA 20 Operating Manual should install and operate this equipment.

•Machine must be plugged into a receptacle which is grounded per any national, local or other applicable electrical codes.

•The PLASMA 20 power switch is to be in the OFF (“O”) position when installing work cable and gun and when connecting power cord to input power.

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SELECT PROPER LOCATION

Place the PLASMA 20 where clean cool air can freely circulate in and out the front, rear and side louvers. Dirt, dust, smoke, gas or any foreign material that can be drawn into the machine should be kept at a mini- mum. Insure open space of at least 15 ft. around the machine. Failure to observe these precautions can result in excessive operating temperatures and nui- sance shutdown of the machine.

STACKING

The PLASMA 20 cannot be stacked.

TILTING

The PLASMA 20 must be placed on a stable, level surface so it will not topple over.

HIGH FREQUENCY INTERFERENCE PROTECTION

The PLASMA 20 employs a touch start mechanism for arc initiation which eliminates high frequency emis- sions from the machine as compared with spark gap and solid state type high frequency generators. Keep in mind, though, that these machines may be used in an environment where other high frequency generat- ing machines are operating. By taking the following steps, high frequency interference into the PLASMA 20 can be minimized.

(1)Make sure the power supply chassis is connected to a good earth ground. The work terminal ground does NOT ground the machine frame.

(2)Keep the work clamp isolated from other work clamps that have high frequency.

(3)If the work clamp cannot be isolated, then keep the clamp as far as possible from other work clamp connections.

(4)When the machine is enclosed in a metal building, several good earth driven electrical grounds around the periphery of the building are recom- mended.

Failure to observe these recommended installation procedures may cause improper function of the PLAS- MA 20 or possibly even damage to the control system or power supply components.

INPUT ELECTRICAL CONNECTIONS

The PLASMA 20 must be connected to a Line-Neutral system with protective grounding wire. Check that the relevant electrical outlet is actually connected to the distribution system grounding.

The PLASMA 20 is rated for 115VAC input.

Use on 15 amp branch circuits will limit cutting output. When the output is set at 16 amps or greater, the input fuse or circuit breaker may “blow” in roughly 30 seconds or less (depending on fuse or circuit breaker type).

To achieve 16-20 amp output with 115VAC input, replace the 15 amp plug on the input cord with a 20 amp plug, and connect the unit to a 20 amp branch circuit with super lag fuses (or equivalent breaker). To install 20 amp plug: Connect the white (neutral) wire under terminal clamp with silver screw, and black (hot) wire under terminal clamp with brass screw. Connect green wire under terminal clamp with green screw. Tighten terminal wire clamp screws securely.

5-20P plug must comply with the standard for attach- ment plugs and receptacles, UL498. This product is acceptable for use only when an attachment plug as specified is properly attached to the supply cord.

WARNING

•Failure to wire as instructed may cause personal injury or damage to equipment.

•To be installed or checked by an electrician or qualified person only.

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PLASMA 20