When the “WATER COOLER PRESSURE” light
turns on, release the key.
5. WIRE FEEDER 1 +/- POLARITY KEY: Press this
key to change the present voltage sensing polari-
ty of wire feeder 1. The present polarity of wire
feeder 1 is indicated by the “WIRE FEEDER 1+
POLARITY” light. If wire feeder 1 is set for positive
voltage sensing polarity, this light is turned on.
6. WIRE FEEDER 1 ELECTRODE SENSE LEAD
KEY: Press this key to enable or disable the elec-
trode sense lead (lead #67) of wire feeder 1. When
enabled, voltage sensing is done by the electrode
sense lead. When disabled, voltage sensing is
done at the Power Wave output terminal. When
enabled, the “WIRE FEEDER 1 ELECTRODE
SENSE LEAD ENABLED” light will be illuminated.
7. WIRE FEEDER 1 WORK SENSE LEAD KEY: Use
this key to disable work sense (21) lead sensing in
all robotic applications. Press this key until the
“WIRE FEEDER 1 WORK SENSE LEAD
ENABLED” LED is OFF.
8. WIRE FEEDER 2: controls are used for touch
sensing. They must be set to + polarity, electrode
sense lead enabled and work sense lead disabled.
WIRE FEEDER SETUP DESCRIPTION
The Power Wave may be set up for either positive
or negative arc voltage sensing using any two of
the following places:
1. the positive output terminal of the Power Wave
2. the negative output terminal of the Power Wave
3. the electrode sense lead (67 lead) of the wire
feeder
The SETUP Overlay allows you to select between
which two places arc voltage will be sensed.
Once the selection is made it is not necessary to
reconfirm the selection every time a new overlay is
used or a wire feeder is replaced with another one.
The selection will remain until it is changed with
the SETUP Overlay.
When welding with a stick procedure, the arc volt-
age is automatically measured between the Power
Wave’s output studs.
I. Select arc voltage sensing polarity first.
+/- POLARITY KEY
A. Positive Polarity Voltage Sensing :
In most welding applications the electrode cable is
connected to the + output terminal and the work
cable is connected to the - output terminal of the
power source. This is positive polarity voltage
sensing. When the Power Wave and the wire
feeder(s) are connected in this manner, the arc
voltage can be measured in one of two ways.
These two ways are shown in Table B.1.
Table B.1: Positive Voltage Sensing Options
Positive Voltage Reference Negative Voltage Reference
+ Output Terminal - Output Terminal
Electrode Sense (67) Lead - Output Terminal
Use the ELECTRODE SENSE LEAD KEY to
select either the + output terminal or the electrode
sense (67) lead for the positive voltage reference.
B. Negative Polarity Voltage Sensing:
In some welding applications (such as Inner-
shield®) the electrode cable is connected to the -
output terminal and the work cable is connected
to the + output terminal of the power source. This
is negative polarity voltage sensing. When the
Power Wave and the wire feeder(s) are connected
in this manner, the arc voltage can be measured in
one of two ways. These two ways are shown in
Table B.2.
Table B.2: Negative Voltage Sensing Options
Positive Voltage Reference Negative Voltage Reference
– Output Terminal + Output Terminal
Electrode Sense (67) Lead + Output Terminal
Use the ELECTRODE SENSE LEAD KEY to select
either the - output stud or the electrode sense (67) lead
for the positive voltage reference.
OPERATION
B-15 B-15
POWER WAVE 450