Miller XMT 300 CC/TIG Manuel du propriétaire - Page 24
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5-4.
Changing AmperageNoltage
Meter Hold Function
READ SAFETY BLOCKS
at start
of
Section
5
before
proceeding.
5-5.
Troubleshooting
a
WARNING
ELECTRIC
SHOCK
can
kill.
SIGNIFICANT
DC VOLTAGE exists after
removal
of
input
power.
S
Do not touch live electrical
parts.
Turn Off
welding
power
source,
disconnect
input
power, wait 60
seconds,
measure
voltage
on
input
capacitors according
to
Section
5-2,
and be
sure
voltage
is
near
zero
before
touching
any
parts.
HOT PARTS
can cause severe
burns.
Allow
cooling period
before
servicing.
STATIC ELECTRICITY
can
damage
parts
on
circuit boards.
Put
on
grounded
wrist
strap
BEFORE
handling
boards
or
parts.
Use
proper
static-proof bags
and boxes.
Troubleshooting
to
be
performed only by qualified
persons.
swam9.3 2194
Table 5-1.
Welding
Trouble
Trouble
Remedy
-~
Be
sure
Power switch
is
On.
Be
sure
line disconnect switch is On.
Check line
fuse(s)
and
replace
if
breakers.
Check for proper
input
connections.
Section
-~
Figure
4-11
-~
3-7
circuit
-~
3-7
-~
3-7
No weld
erative.
output;
unit
completely mop-
i
I
necessary.
Reset
Tools Needed:
Front Panel
(Controls Vary
According
To
Model)
The
AmperageNoltage
meter
is
able
to
hold the
displayed
weld out
put
value for 15 seconds after
welding
stops.
If the hold function
is not
used,
the
displayed
value
leaves when
welding
stops.
This
procedure
allows the hold
function
to
be turned On
or
Off.
Turn Off
welding
power
source,
disconnect
input
power, and check
voltage
on
input capacitors
ac
cording
to
Section
5-2
before
proceeding.
1
NV Meter Board PC5
2
DIP Switch S2
S2 is accessible from the left side
of the unit.
3
Toggle
1
4
Toggle
2
Set
toggles
in desired
position.
Reinstall
case.
ST-i 59050-B
Non-Conductive
Figure
5-5.
Changing Amperage/Voltage
Meter Hold Function
MOVING
PARTS
can cause
injury.
Keep
away from
moving
parts.
OM-2204
Page
18