LFE 2000 Series - Page 44

Remove
the Input/Output
(I
assembly
per
instructlon
rn brackets.
)
/0)
board
or CPU
in
Sectron
l. l0
approprlate
l
the
following
958-3I
REV.
B
from the
electrontc
changes.
(l,FE
P/N's
I/O BOARD
FOR
SSR2
board
(
as
and make
1,
REPIACI
optical
isolator riith lt10C8050
(2036-328)
2,
REt'l0VI
resistor
3,
R$i0VE
capacitor
4,
REil0V[
capacitor
5.
REt'l0Vttriac
6,
ADD resistor
lk
5?
(1846-13)
l, ADD
jumper
(1815-106)
B, ADD
riire
jumper
-
6reen
(2378-127)
9. ADD
wire
jumper
-
Yellori
(2378-191)
10, ADD
jumper
(1835-106)
11,
ADD so1
der bridge
I7, SHIP
a
copy
of supplementary
instructions
956-670
*ith
the standard
manual,
(A
copy of
this manual
may
be found
in
Section
13,2,)
1, REPTACE
optical
isolator
nith lt0CB050
(2036-328)
2, REI'10VI
resistor
3. Rtl'10VI
capac
itor
4, Ril'l0V[
capacitor
5, REf't0VEtriac
6,
ADD wire
jumper
-
llhite
(2378-151)
1,
ADD
jumper
(1835-106)
L
SHIP a
copy of supplementary
instructions
956-673
with
the
standard
manual.
(A
copy
of
this
manual
may
be found
in
Section 13,2,
)
u11
R31
c|l
c25
u12
on solder
side
from
U11-5
to VR1-lN
---
(use
tubing)
n0ne
A1
to A2
n0n e
J32
i14
yes
from the
e1ectrontc
changes.
(
LFE P/N's
I/O EOARD
FOR
SSR2
l.J11
R51
cI7
c25
ij12
U11-5
to
A4
JTI
yes
CPU BOARD
FOR SSRl
UB
R15
C7
cI7
lJ11
CR7
R22
45 to A7
AB to GND
n0ne
n 0ne
yes
4.2.5
MODIFICATION
OF
SSR
TO OPEN
COLLECTOR
OUTPUT
For
sorne applications
tt
is necessary
to
provide
a switching
output
that carr
be
integrated
with
an external
circuit.
For
this
modificatron, the
enritter
and
collector
of
an internal
photo-coupled
NPN
output
transistor
are
brought out
for
customer
use.
An
external
supply
of up
to 24VDC
may be
switched. Kit
1821-124
nray
be
added
to
either
of the
internal
I amp
solrd-state
relays
(SSRI
or SSR2)
to
provrde
for
an
open
collector
output.
The
part
number
or configuration
number
nust also be
set for
any
of
the solid
state
relay
codes
for thi.s
option
to
work.
Remove
the
Input/0utput
(rlo)
board
or
cpu board
as appropriate
assembly
per
instructron
in Section
1.10 and
make the
followirrg
rn brackets.
)
CPU BOARD
FOR SSRl
UB
R15
C7
cr7
tJ11
U8-5
to A7
J8
yes
-37
-
LFE Instruments Division