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ABB Modures LZ92-1 - INSTALLATION AND WIRING PROCEDURES

ABB Modures LZ92-1
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3.11
Frontplate
signals
units
with
Dependinq
on
the
ordering
code
of
main
processing
PCB
8
acc.
to
HESG
439 686
1
the
frontplate
signals
are
(code
FAl)
or
are
suppressed
(code
FA2).
either
in
operation
In
the
case
of
main
processing
units
with
PCB
8
ace.
to
HESG
440
718
(see
Section
3
.12)
and
code
FAl a
further
choice
can
be
made
using
soldered
link
LB19
on
PCB
8
(see
Fig.
9.32)
between:
-
LED
indication
of
all
faults
maintained
until
reset
(LB19
open)
-
LED
indication
of
all
faults,
but
only
maintained
if
the
relay
itself
trips
(LB19
closed)
•
3.12
Versions
of
the
input
transformer
and
main
processing
units
There
are
several
versions
of
the
uni
ts
EW91,
KI91,
KZ91
and
KZ91-l,
which
can
be
recognised
in
the
first
place
from
the
different
arrangements
of
their
frontplates
(compare
Figure
9.3
with
9.4
and
Figures
9.1
and
9.2
with
Figures
9.5
to
9.8).
The
differences
concern
essentially
PCB
1
of
the
input
transfor-
mer
unit
EW91
and
PCB
8
of
the
main
processing
unit.
The
units
and
PCB's
can,
of
course,
be
distinguished
by
their
part
numbers
on
their
rating
plates.
The
part
numbers
of
the
earlier
versions
are:
input
trasformer
unit
EW91
PCB
l
of
EW91
input
transformer
unit
EW91
PCB
1
of
EW91
main
processing
unit
KI91
main
processing
unit
KZ91
main
processing
unit
KZ91-l
PCB
8
in
the
main
processing
unit
The
part
numbers
of
today's
versions
are:
input
transformer
unit
EW9la
PCB
1
of
EW9la
main
processing
unit
KI91
main
processing
unit
KZ91
main
processing
unit
KZ91-1
PCB
8
in
the
main
processing
unit
HESG
438
454
Rl
to
R16
HESG
438
048
(see
Fig.
9.19)
HESG
440
754
Rl
to
R8
HESG
4L~O
752
(see
Fig.
9.20)
HESG
440
079
Rl
to
R4
HESG
440
080
Rl
to
R4
HESG
440
342
Rl,
R2
HESG
439
686
(see
Fig
9.30)
HESG
441
721
Rl
to
R8
HESG
441
585
(see
Fig.
9.20)
HESG
440
079
Rll
to
Rl4
HESG
440
080
Rll
to
Rl4,
R22
HESG
440
342
Rll
to
Rl4,
R22
HESG
440
718
(see
Fig
9.31)
Since
these
instructions
refer
to
all
versions,
the
part
number
is
always
stated
in
order
to
distinguish
the
units.
The
PCB-drawings
necessary
for
the
settings
may
be
found
in
the
appendices.
25

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