flowserve.com
14 Freq
Q: My DCS use
A:
A DCS outpu
regulates the ac
applied directly
and the Logix 3
damaged. The
between 10 VD
4-20 mA range.
Q: I accidentally
3200MD. How d
A:
The typical fa
Your loop curre
board will receiv
3200MD, use a
reading is a sho
Board must be
terminal and ne
the resistance.
Q: What is the
A:
The Logix 32
When measurin
varies slightly w
(9.8 to 10.0 VDC
V with HART ac
active device. T
referred to as th
Effective Resis
For example:
at 20 mA: Effec
The Logix 3200
NOTE:
You can
Logix 3200 and
Q: How do I kn
A:
If the current
affect both
Valv
positioner comm
when using a cu
example) and n
that current sou
filter are listed b
with
ValveSight
communications
but fails on the o
Handheld 4-20
Altek
Mode
Rochester
Unomat
UP
Q: I set the MP
A:
Assume that
command signa
command until
open or fully clo
order to provide
quently As
es 24 VDC, can
ut current card do
ctual current outp
across the termi
200MD Field Te
current source v
C to 30 VDC as
y placed a voltag
do I know if I dam
ailure in an over-
nt will be mainta
ve no power. Wi
n ohmmeter to m
ort (close to zero
replaced. Make
gative lead is on
input resistanc
200MD does not
ng the voltage ac
when the current
C nominal withou
ctive). This is be
The resistance a
he effective resis
stance = (Termin
tive resistance =
MD has a specif
nnot measure ac
get the effective
now if I need a V
t source is interfe
veSight
and the H
municates to
Valv
urrent source (a
ot the DCS, it ind
urce. Some 4-20
below. If one of t
t
or the HART 37
s are established
original source, a
mA calibrators w
el 334
Instrument Syst
PS-II
PC at 5 %. How
t the present com
al is decreased, t
it reaches 5 %. A
osed, depending
e full actuator sat
sked Ques
I run a Logix 32
oes run from 24
put. However, if
nals, nothing wo
rmination Board
voltage supply ca
long as the curre
ge supply across
maged somethin
-current situation
ined but the Log
ith power remove
measure across t
ohms), the Cust
sure the positive
n the ‘-’ terminal w
ce of the Logix 3
have a simple re
cross the Logix 32
is changed from
ut HART commu
ecause the Logix
t a given current
tance.
nal Voltage)/Curr
= 9.9 VDC/0.02 A
fication of 495
Ω
ross the termina
e resistance.
VHF HART filter?
ering with commu
HART 375 handh
veSight
or the HA
4-20 mA current
dicates a filter is
mA calibrators t
these is available
5 handheld agai
d while using one
a filter is needed
which do not requ
ems (RIS) CL-40
will the position
mmand signal is a
the positioner wil
At 5 %, the spoo
on the air action
turation and tight
Use
stions
200MD?
VDC but the car
the 24 VDC wer
ould limit the curr
could be
an be anywhere
ent is limited in th
s the Logix
ng?
n is a short circuit
ix 3200MD contr
ed from the Logix
he terminals. If t
tomer Interface
e lead is on the ‘+
when measuring
3200MD?
esistive input.
200MD, it only
4 mA to 20 mA
nications. Add 0
3200MD is an
is commonly
rent Equation
A = 495
Ω
@ 20 mA.
ls of an unpower
?
unication, it will
held. If the
ART 375 handhe
calibrator, for
necessary with
that work without
e, try to connect
n. If
e of these source
.
uire a filter:
002
ner operate?
at 50 %. If the
l follow the
ol will be driven fu
of the valve, in
t shutoff.
er instructions
d
re
rent
he
t.
rol
x
the
+’
0.3
n 3
red
eld
t a
es
ully
The pos
signal. A
saturate
hysteres
position
3200MD
Q: I hav
A:
Is a lo
than the
active. W
blink a G
GGGY.
Q: Will s
position
A:
No.
Q: What
(3200MD
A:
All mo
algorithm
diagnost
pressure
Pro diag
continuo
analysis
the
Valv
many ke
Q: Can
Advanc
A:
Yes.
software
performe
Q: Can
a 3220M
A:
This d
allow fie
the certif
sensor b
Flowserv
the desir
does not
update t
version (
turn the
allowing
IOM for
pressure
certifying
Quality D
– Digital Positi
sitioner will maint
As the command
ed until the comm
sis value added b
will follow the co
D LEDs will blink
ve MPC set to 3
ower soft stop en
e lower PMC setp
When the lower
GYGY code. Wh
soft stops preve
n?
t is the differen
D), Advanced (3
odels use the pr
m to enhance va
tics performs cal
e, diagnostic sign
gnostics adds full
ous on-line frictio
s. Pro diagnostic
veSight
DTM. Pa
ey parameters ar
I upgrade from
ced to Pro diagn
Upgrading can
e. After upgradin
ed using the
Valv
I add pressure s
MD with Pro diag
depends on the
eld upgrades whic
fying agency allo
board assembly c
ve technician ca
red MD version (
t allow physical u
the positioner sof
(Advanced or Pr
3200IQ into a 32
it to work with th
instruction on re
e sensors. For a
g agencies rules
Department
ioner 3200MD
tain full saturation
d increases, the p
mand reaches 6 %
by the positioner
ommand signal.
GGGY.
% but the valve
nabled? The low
point in order for
soft stop is reach
hen MPC is activ
ent the valve fro
ce between mo
3210MD) and Pr
ressure sensors i
lve stability. The
lculations such a
natures and data
l diagnostic capa
on, pneumatic lea
cs support compr
artial stroke tests
re also available
a Standard to A
nostics?
be accomplished
ng, pressure and
veSight
DTM or
sensors to my 3
gnostics?
certifying agency
ch change the ph
ows physical upg
can be purchase
n update the pos
(Advanced or Pro
upgrades, a Flow
ftware from the I
ro) by updating th
200MD (with Sta
he
ValveSight
DT
emoving the plug
any questions reg
s please contact t
LGENIM0059
n below 5 % com
positioner will re
% (there is a 1 %
r). At this point, t
While in MPC, t
e will not go bel
wer soft stop mus
the lower MPC t
hed, the position
e, the positioner
om going to its
dels with Stand
ro (3220MD) dia
in the positioner
e model with Adv
as detection of lo
a logging. The m
abilities including
ak and actuation
rehensive health
s and long term t
with Pro diagnos
Advanced or fro
d using
ValveSig
friction calibratio
the HART 375 h
3200IQ and upg
y. Some agencie
hysical configura
grades, the press
ed and installed.
sitioner software
o). If the certifyi
wserve technicia
Q to the desired
he positioner sof
andard diagnostic
TM. See the Log
plate and install
garding this upgr
the Flowserve S
9-04 09/11
37
mmand
main
%
the stem
he Logix
ow 10 %.
st be less
to become
ner will
will blink
fail
dard
gnostics?
control
vanced
ss of
model with
g
ratio
views in
rends of
stics.
om
ght
DTM
ons can be
andheld.
grade it to
es do not
ation. If
sure
A
from IQ to
ng agency
n can still
MD
ftware, to
cs)
gix 3200IQ
ling the
rade or the
pringville
