Owner manual

ManualsBrandsLincoln Electric ManualsEquipmentIM771 POWER WAVE 455M_STT

A-5

INSTALLATION

POWER WAVE

455M/STT

A-5

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.

Important: The electrode polarity must be config-

ured at the feed head for all semi-automatic

processes. Failure to do so may result in extreme-

ly high welding outputs.

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POWER WAVE TO SEMI-AUTOMAT-

IC POWER FEED

WIRE FEEDER

INTERCONNECTIONS

The POWER WAVE

455M/STT

and semi-automatic

POWER FEED

family communicate via a 5 conductor

control cable (K1543). The control cable consists of two

power leads, one twisted pair for digital communication,

and one lead for voltage sensing. The cables are

designed to be connected end to end for ease of exten-

sion. The output receptacle on the POWER WAVE

455M/STT

is located beneath the spring loaded output

cover at the bottom of the case front. The input recepta-

cle on the Power Feed

is typically located at the back of

the feeder, or on the bottom of the user interface.

For convenience sake, the electrode and control cables

can be routed behind the left or right strain reliefs (under

the spring loaded output cover), and along the channels

formed into the base of the Power Wave

, out the back of

the channels, and then to the wire feeder.

Due to the flexibility of the platform the configuration may

vary. The following is a general description of the sys-

tem.

SYSTEM DESCRIPTION

The POWER WAVE

455M/STT

and Power Feed

family of products utilize a digital communication system

called ArcLink. Simply put, ArcLink allows large amounts

of information to be passed at very high speeds between

components (nodes) in the system. The system requires

only two wires for communication, and because of its

bus-like structure, the components may be connected to

the network in any order, thus simplifying the system set-

up.

Each "system" must contain only one power source.

The number of wire feeders is determined by the type

of wire feeder. Refer to the wire feeder instruction

manual for details

Enable the voltage sense leads as follows:

TABLE A.2

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

STT

67 lead required 21 lead required

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

455M/STT

is shipped

with the work voltage sense lead enabled.

For processes requiring work voltage sensing, connect

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 current

path. Enable the work voltage sensing in the Power

Wave as follows:

• Do not touch electrically live parts or

electrodes with your skin or wet cloth-

ing.

• Insulate yourself from the work and

ground.

• Always wear dry insulating gloves.

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

1. Turn off power to the power source at the disconnect

switch.

. Remove the front cover from the power

source.

3. The control board is on the left side of the

power source. Locate the 8-position DIP

switch and look for switch 8 of the DIP

switch.

4. Using a pencil or other small object, slide

the switch right 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 cover and screws. The PC board will

“read” the switch at power up, and configure the

work voltage sense lead appropriately.

12 345678

CAUTION

WARNING