Technical Specifications

271
Fault Matrix
Status
RANGE1 Range 1 The I/P cut off
switch is not
functional.
2
RANGE2 Range 2 2
LINKAGE_
DRIFT
Linkage Drift 2 1:In the fully open or fully
closed position a raw travel
sensor count deviation of
x% exists against the cali-
brated stop value.
1: Verify that linkage is well
fastened.
2: Re run the Find Stops
method. When device goes
in Failsafe when running
the Find Stop method,
clear alarm and rerun the
stops.
VALVE_STUCK_
CLOSED
Valve Stuck
Closed
Measured fric-
tion is below
customer
specified
range.
2 1: A handwheel is left
engaged.
2: Valve is seized in place.
3: Insufficient actuator
thrust.
1: Verify presence of a
mechanical stops such as
a handwheel.
2: Repair valve.
3: Run a PST or Extended
signature. If friction is
abnormal then overhaul
valve.
VALVE_STUCK_
OPENED
Valve Stuck
Opened
Measured fric-
tion is above
customer
specified
range.
2 1: A handwheel is left
engaged.
2: Valve is seized in place.
3: Exhaust port is clogged
up (no venting).
4: An accessory prevents
the air from the actuator to
be vented.
1: Verify presence of a
mechanical stops such as
a hand wheel.
2: Repair valve.
3: Verify that exhaust port
is not restricted.
4: Run a TBT test from Val-
Vue. A failure of the TBT
test would indicate a prob-
lem in venting.
UI_OFF UI_OFF Pressure to
move valve is
greater than
customer
specified
range.
2
Table 2 Fault Matrix (Continued)
FAULT Name
(Anchor)
TEXT For DD &
Valvue2
English
HELP For DD &
Valvue2
English
Critic
ality
Probable Cause Recommended Action