Technical Specifications

ValVue Digital Communications Software Ver. 2.80
264
GE Oil & Gas
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_
POWER
Marginal
Power
2 The input current is less
than 3.85mA.
Increase loop current to
4mA only if calibration and
diagnostics are to be per-
formed.
Table 2 Fault Matrix (Continued)
FAULT Name
(Anchor)
TEXT For DD &
Valvue2
English
HELP For DD &
Valvue2
English
Critic
ality
Probable Cause Recommended Action