Mosa CS 230 YSX CC, Руководство по эксплуатации и обслуживанию

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CS
M
40.1
REV.0-02/11
Trouble shooting
07/02/1
1 M40CT_GB
PROBLEM
AS
SO
CI
AT
ED
SY
MP
TO
MS
POSSIBLE CAUSE
VERIFICA
TIONS
WHA
T T
O DO
P1
No
welding
arc
(a
pp
lic
ab
le
only
to
ma
-
chines
with
WAC)
No open circuit voltage
Failed
power
supply
wi
-
thin
the
welding
control
board (W
AC)
With
the
machine
running,
by
means
of
a
multimeter
, check
if there
is
a
voltage
of
5VDC
±
0,125V
between
the
contacts
A
(-)
and
C
(+)
on
the
circular
connector
of
the
W
AC.
In
case
of
lack
of
voltage
or
condition
not
satisfied consider the suggested action.
Replace
the
welding
control
board
of
the
W
AC
P2
No
welding
arc
(a
pp
lic
ab
le
only
to
ma
-
chines
with-
out W
AC)
No open circuit voltage
Failed
power
supply
wi
-
thin
the
welding
control
board (W
AC)
With
the
machine
running,
by
means
of
a
multimeter
, check
if there
is
a
voltage
of
5VDC
±
0,125V
between
the
contacts
1
(-)
and
2
(+)
on
the
circular
connector
of
the
front
panel,
after
having
set
the
remote
control
switch in ON position. In
case
of
lack
of
voltage
or
condition
not
satisfied
consider
the
sugge
-
sted action.
Replace the welding control board
P3 No welding arc
No open circuit voltage
Failure
in
the
control
or
drive
circuits
of
the
wel
-
ding control board
In
order
to
check
the
proper
operation
of
these
circuits
it is
necessary
to
use
specific
test
and
troubleshootin
g
tools.
Anyway
, a
visual
inspectio
n
coul
be
enough
to
localise
possible
damages
caused
by
a failure.
In
case
of evidence of damages consider the suggested action.
Replace the welding control board ATTENTION For
the
CS
230
only
, there
is
a
risk
of
fai
-
lure
propagation
towards
the
chopper
.
Before
replacing
this
board
please
check
that
the
chopper
works
properly
. If
not
re
-
place both.
P4
Lack
of
welding
current control
Full
welding
power
(without
current
control)
regardless
of the knob position
Failure
in
the
control
or
drive
circuits
of
the
wel
-
ding control board
In
order
to
check
the
proper
operation
of
these
circuits
it is
necessary
to
use
specific
test
and
troubleshootin
g
tools.
Anyway
, a
visual
inspectio
n
coul
be
enough
to
localise
possible
damages
caused
by
a failure.
In
case
of evidence of damages consider the suggested action.
Replace the welding control board ATTENTION For
the
CS
230
only
, there
is
a
risk
of
fai
-
lure
propagation
towards
the
chopper
.
Before
replacing
this
board
please
check
that
the
chopper
works
properly
. If
not
re
-
place both.
P5 No welding arc
No
open
circuit
voltage
or
welding
available
current
low or negligible. With
auto-idle
installed,
the
r.p.m.
never
slows-down
to
idle.
Hall sensor failed
Disconnect
the
Hall
sensor
from
the
welding
control
board
(on
the
W
AC
or
within
the
electrical
box,
as
applicable)
and
check
that,
in
this
condi
-
tion,
the
open
circuit
voltage
reading
is
correct.
When
the
VRD
is
instal
-
led, the voltage goes to VRD value. If
a
resistive
load
bank
is
available,
check
that
it is
possible
draw
power
(do
not
exceed
100A).
If
the
Auto-idle
is
installed,
in
this
condition
the
machine does not exit the idle. In any case, don’t try to weld with the Hall sensor disconnected. If the test gives positive result, consider the indicated action.
Replace the Hall sensor