Flowserve Logix 3200MD - 4-20 mA Command Input Wiring; Input Wiring and Current Source Requirements; Grounding Screw; Proper Grounding Procedures

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WAR
N
across th
e
permanen
Determine if t
h
positioner by
p
Voltage = Co
m
Current
max
• (
R
The calculate
d
order to safel
y
Example:
DCS Complia
R
barrier
= 300
Ω
R
wire
= 25 Ω
Current
max
=
2
Voltage = 19
V
Figure 7: Co
m
N
ING: Never c
o
e
positioner ter
m
t circuit board
d
h
e loop will su
p
p
erforming the
m
pliance Voltag
e
R
barrier
+ R
wire
)
d
voltage must
y
support the L
nce Voltage =
Ω
2
0 mA
V
DC – 0.020
A
m
pliance volta
g
o
nnect a voltag
m
inals. This c
o
d
amage.
p
port the Logi
x
following calc
u
e
(@ Current
max
)
be greater th
a
ogix 3200MD
d
19 VDC
A
• (300 Ω + 25
e
Us
e
e source direc
t
o
uld cause
x
3200MD digit
a
u
lation:
–
Equatio
n
a
n 10 VDC in
d
igital position
e
Ω) = 12.5 VD
C
e
r instructions
t
ly
a
l
n
1
e
r.
C
The vol
t
therefo
r
positio
n
input re
s
6.4
The Lo
g
Comm
u
superi
m
freque
n
2200 H
comm
u
restricti
limited
lower c
In addi
t
also af
f
– Digital Posit
i
t
age 12.5 VDC
r
e, this system
w
n
er. The Logix
3
sistance equiv
a
Cable Req
g
ix 3200MD di
u
nication proto
m
posed on the
n
cies used by t
z. In order to
p
u
nication signa
l
i
ons must be c
a
if the capacita
n
apacitance/fo
o
t
ion to the cabl
f
ects the allow
a
i
oner 3200MD
is greater than
w
ill support the
3
200MD positi
o
a
lent to 500 Ω
a
uirements
gital positione
r
col. This com
m
4-20 mA curr
e
t
he HART prot
o
p
revent distort
i
l
, cable capaci
t
alculated. Th
e
n
ce is too high
o
t rating will all
o
e capacitance
,
a
ble cable len
g
LGENIM005
9
the required 1
0
Logi
x
3200MD
o
ner has a wor
s
a
t a 20 mA inpu
t
r
utilizes the H
A
m
unication sig
n
e
nt signal. Th
e
o
col are 1200
H
i
on of the HA
R
t
ance and cabl
e
cable length
m
. Selecting a
c
o
w longer cabl
e
,
the network r
e
g
th.
9
-04 09/11
13
0
.0 VDC;
digital
s
t case
t
current.
A
RT
n
al is
e
two
H
z and
R
T
e length
m
ust be
c
able with
e
runs.
e
sistance