Lincoln Electric POWER WAVE 355M - Manual (Page 14)

INSTALLATION A-6 A-6
POWER WAVE 355M/405M
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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 355M/405M default to
the work stud (work sense lead disabled)
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
clothing.
• Insulate yourself from the work and
ground.
• Always wear dry insulating gloves.
1. Turn off power to the power source at the disconnect
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.
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.
WARNING
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1 2 3 4 5 6 7 8
5. Replace the wrap around and screws. The PC board
will “read” the switch at power up, and configure the
work voltage sense lead appropriately.
ELECTRODE VOLTAGE SENSING
Enabling or disabling electrode voltage sensing is auto-
matically configured through software. The 67 elec-
trode sense lead is internal to the cable to the wire
feeder and always connected when a wire feeder is
present.
PF10M feeder has user preference features to select
voltage senses temporarily for testing sense leads.
CAUTION
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-AUTOMATIC POW-
ERFEED WIRE FEEDER INTERCONNEC-
TIONS
The POWER WAVE 355M/405M 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 communica-
tion, 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
405M is on the case front. The input receptacle on the
Power Feed is typically located at the back of the feed-
er, or on the bottom of the user interface.
Due to the flexibility of the platform the configuration
may vary. The following is a general description of the
system. For specific configuration information, consult
the semi-automatic Power Feed instruction manual.