Lincoln Electric IM311-E manual Safety Precautions, Input Cable

A-2 INSTALLATION A-2

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should perform this installation, maintenance and troubleshooting work.

•Turn off the input power at the fuse box before working on other equipment connected to the welding system at the disconnect switch or fuse box before working on this equipment.

•Do not touch electrically hot parts.

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INPUT CABLE:

For K316L-1(6 pin connector)

The standard 25 foot input cable between the LN™- 23P and the power source (with a K350 Adapter Kit) consists of a six-conductor control cable and a 1/0 electrode cable. The control cable has lugged leads on the power source end and a polarized plug on the wire feeder end.

With the power source turned off, install the input cable per the following instructions:

•Connect the end of the control cable with the lugged leads to the K350 or K350-1 Adapter Kit. Connect the electrode cable to the negative output stud on the power source.

NOTE: If two LN™-23P’s are connected to an Adapter Kit, connect the feeder that will be used at the lowest voltage setting to Feeder “A” terminal strip in the K350. If only one LN™-23P is used, connect it to Feeder “A” terminal strip.

•Connect the input control cable polarized plug into the mating 6 pin receptacle on the rear of the con- trol section of the LN™-23P. Tighten the threaded locking collar until the connector is completely seated.

•Unclip the rubber retaining strap that holds the wire enclosure cover in place and remove the cover. Push the wire drive section door latch towards the rear of the LN™-23P and open the door. Route the electrode cable through the large rubber grommet in the rear of the wire feed section and connect the lug to the brass conductor block at the front of motor-gearbox assembly using the bolt provided. Attach the control cable strain relief hook to the bracket on the frame of the LN™-23P

.

For K316L-2or higher (8 pin connector)

With the power source turned off, install the input cable per the following instructions:

•The K316L-2 LN™-23P can be connected directly to any Lincoln power source that have CV output and Twist-Mate weld terminals (V350, V350-PIPE, CV- 305, etc.), using the control cable provided with the machine.

•Connect the 14-pin connector and Twist-Mate plug of the input cable assembly to the front of the welder.

•Unclip the rubber retaining strap that holds the wire enclosure cover in place, and remove the cover. Push the wire drive section door latch towards the rear of the LN™-23P and open the door. Route the electrode cable through the large rubber grommet in the rear of the wire feed section and connect the lug to the brass conductor block at the front of the motor gear box assembly using the bolt provided. Attach the control cable strain relief hook to the bracket on the frame of the LN™-23P.

•Connect the 8-pin receptacle to the LN™-23P locat- ed on the back underside of the control box.

WORK CABLE AND REMOTE VOLTAGE SENSING WORK LEAD

•Connect a work cable of sufficient size and length, per the following table, between the proper output stud on the power source and the work. Be sure the connection to the work makes tight metal to metal contact.

Electrode	Work	Copper	Copper
Cable	Cable	Electrode	Work Cable
Length	Length	Cable Size	Size
0-25 ft.	0-75 ft.	1/0	1/0
0-25	76-125	1/0	2/0
26-75	26-75	2/0	2/0
26-75	76-125	2/0	4/0
76-100	76-125	3/0	4/0

Above cable sizes are based on a maximum voltage drop of

4.3volts in the combined lengths of electrode and work cable at 350 amps.

•Connect a 12 AWG or larger rubber covered flexi- ble lead physically suitable for the installation to the voltage sensing work lead (#21) coming from the Adapter Kit. For convenience, wrap this voltage sensing lead around the work lead and tape in place. Connect it directly to the work or to the work cable connection . This lead supplies voltage to the voltmeter as well as power to the LN™-23P control circuitry and drive motor.

LN™-23P