Technical Specifications

Masoneilan Valves ValVue ESD Instruction Manual =| 303
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504POSITION_
ERROR
2Yes if
the
condi-
tion is
resolve
d
Yes No Posi-
tion
Error
1. Pst Control-
ler is slow to
follow com-
mand signal
due to physi-
cal valve wear,
such as tight
packing, stem
build-up,
throttling sur-
face friction or
actuator fric-
tion.
2. Valve is
slow to follow
command sig-
nal due to
large volume
actuator.
3- Valve will
not follow
command sig-
nal due to
insufficient or
no air supply.
4- Valve does
not move
because the
device's mode
is not set to
Normal.
5-. Valve will
not follow
command sig-
nal due to
poor PST con-
troller tuning
for current
valve status.
1- Perform
valve signa-
ture using Val-
Vue ESD.
2- Perform
step test sig-
nature using
ValVue ESD.
Verify that air
supply droop
during filling is
less than 15%
or the set
pressure.
3- Validate
that the air
supply set to
the instrument
is greater that
the spring
final + 10 psig.
4- Set the
mode to Nor-
mal using Val-
Vue ESD or
HART Host.
5- Perform
Autotune or
Manual tun-
ing using Val-
Vue ESD or
HART Host.
Table 8 SVI II ESD Fault Matrix (Continued)
Seque
nce
Byte
#
Bit
#
FAULT Name Critical-
ity Of
Alarm
Auto-
mati-
cally
cleared
Can be
cleare
d
Per-
sists
across
resets
TEXT
For DD
&
Val-
Vue
ESD2
English
Probable
Cause
English
Recom-
mended
Action