Triguard
SC300E
CONFIGURATION
Before
fitting
a new
module
ensure
that
321/320
link
setting
is
the
same
as
that
on
the
old
module.
REMOVAL AND REPLACEMENT
CAUTION
3
Failure
to
take
the
faulty
module
off
-
line
before
removing
it
from
the
chassis
could
trigger
a fault
alarm
or
cause
plant
shutdown.
CAUTION
4
When
inserting
a module
ensure
that
it
is
aligned
with
the
markings
on
the
chassis
rails
and
that
it
engages
with
the
top
and
bottom
guides.
Improper
insertion
may
cause
damage
to
the
module
and/or
chassis
connectors.
SINGLE
-
SLOT HOT REPAIR
1.
Operate
the
On/Off
Line
Request
switch
on
the
faulty
module.
The
three
On
Line
LEDs
should
all
extinguish
to
indicate
that
the
MPPs
have
recognised
the
request
and
taken
the
module
off
-
line.
The
last
read
data
input
from
the
module
will
be
maintained
until
the
new
module
is
on
-
line.
2.
Slacken
the
two
module
securing
screws
and
use
the
black
ejection
levers
(top
and
bottom)
to
draw
the
module
from
its
slot.
3.
Inse
rt
the
new
module
ensuring
that
it
engages
properly
in
the
upper
and
lower
guides
in
the
chassis.
The
top
and
bottom
chassis
rails
carry
alignment
marks
to
assist.
Pull
out
the
ejection
levers
and
as
the
module
is
pushed
back
engage
the
levers
on
the
chassis
rails.
The
levers
should
then
be
used
to
draw
the
module
into
position,
some
resistance
will
be
felt
as
the
rear
connector
pins
engage.
The
module
should
be
fixed
in
position
with
the
securing
screws.
4.
Operate
the
On/Off
Line
Request
switch
and
check
that
the
three
On
Line
LEDs
illuminate
for
one
second,
extinguish
for
one
second
and
then
illuminate
permanently
to
indicate
that
the
module
has
been
put
on
-
line.
If
the
LEDs
do
not
illuminate
either
the
first
or
second
time
or
fail
to
remain
illuminated,
then
the
module
must
be
considered
faulty.
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