Lincoln Electric F355I Power Wave / Power Feed Wire Feeder Interconnections, High Speed Gear BOX

A-4 INSTALLATION A-4

Enable the voltage sense leads as follows:

TABLE A.1

Process	Electrode Voltage	Work Voltage
	Sensing 67 lead *	Sensing 21 lead
GMAW	67 lead required	21 lead optional
GMAW-P	67 lead required	21 lead optional
FCAW	67 lead required	21 lead optional
GTAW	Voltage sense at studs	Voltage sense at studs
GMAW	Voltage sense at studs	Voltage sense at studs
SAW	67 lead required	21 lead optional
CAC-C	Voltage sense at studs	Voltage sense at studs

*The electrode voltage 67 sense lead is integral to the control cable to the wire feeder.

Work Voltage Sensing

The standard POWER WAVE F355i (CE)’s default is to the work stud (work sense lead disabled).

For processes requiring work voltage sensing, con- nect the (21) work voltage sense lead (K940) from the Power Wave work sense lead receptacle to the work piece. Attach the sense lead to the work piece as close to the weld as practical, but not in the return cur- rent path. Enable the work voltage sensing in the Power Wave as follows:

WARNING

ELECTRIC SHOCK can kill

• Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.

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1.Turn off power to the power source at the dis- connect switch.

2.Remove the wrap around cover from the power source.

3.The control board is on the center assembly facing the case front. Locate the 8-position DIP switch and look for switch 8 of the DIP switch (See Figure A.1).

4.Using a pencil or other small object, slide the switch to the OFF position if the work sense lead is NOT connected. Conversely, slide the switch to the ON position if the work sense lead is present.

5.Replace the wrap around and screws. The PC board will “read” the switch at power up, and config- ure the work voltage sense lead appropriately.

ELECTRODE VOLTAGE SENSING

Enabling or disabling electrode voltage sensing is automatically configured through software. The 67 electrode sense lead is internal to the cable to the wire feeder and always connected when a wire feeder is present.

CAUTION

Important: The electrode polarity must be config- ured on the feed head PC board. Failure to do so may result in extremely high welding outputs.

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POWER WAVE / POWER FEED WIRE FEEDER INTERCONNECTIONS

(See Section F-2 for Connection Diagram)

Connect the control cable between the power source and wire feeder. The wire feeder connection on the POWER WAVE F355i (CE) is the 14-pin connector located on the left side of the machine. The control cable is keyed and polarized to prevent improper con- nection.

CONTROL CABLE SPECIFICATIONS

It is recommended that genuine Lincoln control cables be used at all times. Lincoln cables are specifically designed for the communication and power needs of the Power Wave / Power Feed system.

CAUTION

The use of non-standard cables, especially in lengths greater than 25 ft.(7.6m), can lead to com- muni-cation problems (system shutdowns), poor motor acceleration (poor arc starting) and low wire driving force (wire feeding problems).

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HIGH SPEED GEAR BOX

Changing the ratio requires a gear change and a PC board switch change. The Power Feed Wire Feeders are shipped with both high speed and a low speed gears. As shipped from the factory, the low speed (high torque) gear is installed on the feeder. To change Gear ratio see Power Feed 10/R Instruction Manual.

POWER WAVE F355i (CE)