Technical Specifications
151
Status Code List
Status Screen
POSITION_
ERROR
Position Error If T1 error is
configured
AND the posi-
tion error out-
side the error
band for time
T1.
2 1. Controller is slow to fol-
low command signal due to
physical valve wear, such as
tight packing, stem build up,
throttling surface friction or
actuator friction.
2. Valve is slow to follow
command signal due to
large volume actuator.
3: Valve will not follow com-
mand signal due to insuffi-
cient or no air supply.
4: Valve does not move
because the device's mode
is not set to Normal.
5:. Valve will not follow com-
mand signal due to poor
controller tuning for current
valve status.
6: Valve will not follow com-
mand signal due to control-
ler malfunction such as I/P
or Relay.
7: Valve will not follow com-
mand signal due to inline
obstruction.
1: Perform valve signature
using ValVue.
2: Perform step test signa-
ture using ValVue. Verify
that air supply droop dur-
ing filling is less than 15 %
or the set pressure.
3: Validate that the air sup-
ply set to the instrument is
greater that the spring
final + 10 psig.
4: Set the mode to Normal
using ValVue or HART Host.
5: Perform Autotune or
Manual tuning using Val-
Vue or HART Host.
6: Verify if Bias Out Range
or I/P Out of Range events
are active.
7: Perform valve signature
using ValVue.
I2CBUS
KEYPAD Keypad Fault Possible mois-
ture inside or
connector or
mechanical
failure.
2 The local user interface and
display is defective.
Replace the local user
interface and display
assembly.
MARGINAL_PO
WER
Marginal
Power
2 The input current is less
than 3.85 mA.
Increase loop current to 4
mA only if calibration and
diagnostics are to be per-
formed.
CALIBRATION_
FAILED
Calibration
Failed
Calibration of
AO or pressure
failed.
3 Calibration of the input sen-
sors was outside the
acceptable range when
attempting to calibrate.
Using precision measuring
equipment, perform cali-
bration according to
boundary limits of input
sensors.
Table 8 Fault Matrix (Continued)
FAULT Name TEXT For DD &
ValVue
HELP For DD &
ValVue
Critic
ality
Probable Cause Recommended Action