Varian 990 dCLD II, Руководство по эксплуатации

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B-1
Model 990 dCLD II Component Leak Detector
Appendix B.
Customer Access
ible Input
s and Output
s
B.1
C
ustomer Accessible Input
s
Ta
ble
B
-1 is a li
sti
n
g of
inputs by which
the customer's co
nt
roller
, u
su
ally a P
LC, can cause
act
ion in
the 9
90 dCLD II. All
inp
u
ts
are opto-isolator LEDs
with series resistors. The LED
cathodes
are all common
ed and
are
connected to
J3
pin
s 1 and 25
lVRET
. The customer must conn
ect
the (-)
of a po
wer su
pply to these pins
as th
e 990
dCLD II does n
o
t provide p
o
wer
to the customer side of the opto-isolators. Apply
5
to
24
VDC
in all
cases unless otherwise
noted
in the
first line of the beha
vior
discussi
on.
Ta
b
le B-1
C
ustomer Acce
ssible
Input
s
Con
n
/Pin
Input
Na
me
Momen
tary
or
Le
vel Cont
ac
t
5
to
24 VDC
De
sc
rip
tion
B
eha
v
ior
J3
/1
Inpu
t
Com
m
on
N/A
R
etur
n fo
r J3 inp
u
ts
(
with
J2
5)
J3
/5
RU
N /
IDL
E
Le
ve
l
T
ur
ns
O
N
S
p
ec
T
ub
e
a
nd
T
ur
bo
Activation cause
s the 99
0 dCLD
II
to chan
ge
fro
m
idle to run
mod
e
. RUN mod
e
is nor
mal o
p
er
atio
n. IDLE mo
de
is a st
ate
in
wh
ich
the
9
90
dCLD
II
is
po
we
re
d, b
u
t the
tur
bo
a
nd
sp
ec
tu
be
ar
e o
ff. Th
is inp
u
t ha
s no
ef
fect on
the
99
0
d
CLD II an
d
th
e
990
dCLD
II
as
su
mes a ru
nnin
g
st
ate wh
en
the
P
A
R
A
LL
EL
ENAB
LE inp
ut
J3
/6
is no
t po
we
re
d or
if th
e
R
UN
/ IDLE
function is disa
bled
(by the DISABLE-IDLE
co
mman
d
).
J3
/6
Par
a
lle
l En
able
Level
Disa
b
le
Discrete
in
put
s
A
ctivation
ca
us
es
th
e
99
0
d
C
LD
II
to
ta
ke inp
u
ts
only fr
om
th
e re
ar p
a
ne
l I/
O
. Op
tio
n
al
f
ro
n
t co
nt
ro
l p
a
ne
l en
tr
ies
th
at
ch
ang
e mod
e
s or
p
a
ra
me
ters in the 99
0 dCLD II ar
e
igno
re
d.
Que
ries from
the
option
a
l fron
t
con
tr
o
l p
ane
l are
allowed.
J3
/7
Ze
ro
Mo
men
tar
y
(m
in. 0.2 s)
Pe
rfo
rm a ZER
O
fu
nct
ion
A
ctiva
tio
n
ca
us
es
the
9
90 dCL
D
II to pe
rfor
m a ze
ro
ing
fu
nctio
n
ide
n
tica
l to
tha
t in
vo
ke
d by pre
ssin
g
th
e op
tio
nal
fr
on
t contr
o
l p
ane
l ZERO b
u
tto
n
.