Filter
Top Products
Table
6-1.
Troubleshooting
TROUBLE
PROBABLE
CAUSE
REMEDY
No
arc
voltage
control.
Output
control
connections.
Check
and
secure
connections
(see
Section
3-4).
Arc
sensing
connections.
Check
and
secure
connections
(see
Section
3-4).
Voltage
Board
PCi
not
working.
Replace
PCi
(see
Section
6-5
and
contact
near
est
Factory
Authorized
Service
Station).
Incorrect
robot
command
voltage.
Check
robot
command
voltage
at
Voltage
Board
PCi.
Command
voltage
should
be
0-10
vdc
be
tween
sockets
V
(common)
and
U
at
RC17.
Wire
speed
(1PM)
meter
goes
to
zero.
Incorrect
robot
command
voltage.
Check
robot
command
voltage
at
Motor
Board
PC2.
Signal
should
be
0-10
vdc
between
pins
K
and
B
(common)
at
RC5.
Motor
Board
PC2
not
working.
Replace
PC2
(see
Section
6-5
and
contact
near
est
Factory
Authorized
Service
Station).
Unit
does
not
operate.
Fuse
Fl
Open.
Check
Fl,
and
replace
if
necessary
(see
Section
6-2).
Correct
overload
problem
before
continu
ing
operation.
Circuit
breaker
CB1
tripped.
~
Check
CB1,
and
reset
if
necessary
(see
Section
6-2).
Correct
overload
problem
before
continu
ing
operation.
No
meter
display.
Meter
not
working.
Use
check
points
on
Display
Board
PC4
to
deter
mine
if
power
is
available
to
meter
(see
Section
6-4).
If
check
points
are
okay,
replace
meter
(see
Section
6-5
and
contact
nearest
Factory
Autho
rized
Service
Station).
Display
Board
PC4
not
working.
Use
check
points
to
determine
if
power
is
avaii
able
(see
Section
6-4).
If
check
points
do
not
test
okay,
replace
PC4
(see
Section
6-5
and
contact
nearest
Factory
Authorized
Service
Station).
No
wire
feed.
Robot
signal.
Check
input
signal
from
robot
to
Motor
Board
PC2.
Signal
should
be
0-10
vdc
between
pins
K
and
B
(common)
on
RC5.
Relay
CR1
not
working.
Replace
CR1.
Motor
Board
PC2
not
working.
Replace
PC2
(see
Section
6-5
and
contact
near
est
Factory
Authorized
Service
Station).
Wire
feeds
at
maximum
only,
Tach
board
at
wire
drive
motor
not
working.
Replace
tach
board
(see
motor/drive
assembly
Owners
Manual).
OM-135
582
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