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SECTION
5-
SEQUENCE OF OPERATION
Wire Feed
Speed
0-1OV
=
0-1 000 1PM
Output
Volts 0-1OV
=
0-50V
Peak
Amps
0-1OV
=
0-500
Amps Output
Figure
5-1.
Input
And
Output Signal
Timing
Chart
5-1.
INPUT SIGNALS FROM ROBOT CONTROL
UNIT
(Figure 5-1)
The robot interface receives
input signals
for
contactor
control,
gas
control,
jog, welding
volts,
wire
speed,
and
current. It
also receives
a
signal
to
initiate
a
check
to
see
if the wire is stuckto the
workpiece
at the end of the weld.
5-2.
OUTPUT SIGNALS FROM ROBOT INTERFACE
(FIgure 5-1)
The robot interface sends
output
signals
to
the robot
control unit for
current sense,
wire
stuck,
and
arc
failure.
SECTION 6- MAINTENANCE & TROUBLESHOOTING
6-1.
ROUTINE MAINTENANCE
IMPORTANT:
Every
six months
inspect
the labels
on
this unit for
legibility.
All
precautionary
labels
must
be
maintained in
a
clearly
readable
state and
replaced
when
necessary
See Parts
List for
part
number of
precautionary
labels.
Usage
and
shop
conditions determine the
frequency
and
type
of maintenance. At
minimum,
inspect equip
ment
every
three months
as
follows:
4A
WARNING: ELECTRIC SHOCK
can
kill.
Do
not
touch live electrical
parts.
Shut down
unit,
welding
power
source,
and
robot,
and disconnect
input
power
employing
lockout/tagging procedures
before
inspecting,
maintaining,
or
servicing.
Lockout/tagging procedures
consist of
pad
locking
line disconnect switch in open
position,
removing
fuses from fuse
box,
or
shutting
off and
red-tagging
circuit breaker
or
other disconnect
ing
device.
Robot control
Unit
to
Computer
Gas Control
Interface
Contactor Control
Wire
Stuckilouch Sense
Output Voltage
Shielding
Gas
Wire
Stick/Touch
Sense
Voltage
Abnormal
TA-094
382-A
OM-135 582
Page
8
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