Fisher FIELDVUEDVC6200f Instruction Manual page 73

Instruction Manual
D103412X012
D Test Pause Time (VST_PAUSE [120]) is the time between the outgoing and incoming strokes of the test. The default
value is 5 seconds. Pause Time will not be used if Minimum PST Pause Time is enabled. The outgoing stroke is from
the normal end to the PST target and the incoming stroke is the return stroke to normal. See figure 4‐6.
D High Friction Breakout Pressure (HI_FRIC_BRKOUT_PRESS [129.3]) indicates that the breakout required a higher
force than configured by the user. Refer to figure 4‐6.
D Low Friction Breakout Pressure (LO_FRIC_BRKOUT_PRESS [129.4]) indicates that the breakout required a lower
force than configured by the user. Refer to figure 4‐6.
D Action On a Failed Test defines if the valve should step or ramp back on a failed stroke test.
Figure 4‐6. Valve Signature Representation
j
SUPPLY PRESSURE
k
INCOMING PRESSURE THRESHOLD
l
LOW FRICTION BREAKOUT PRESSURE THRESHOLD
m
HIGH FRICTION BREAKOUT PRESSURE THRESHOLD
n
OUTGOING PRESSURE THRESHOLD
o
TARGET TRAVEL MOVEMENT  100%
VST Abnormal & Abort Criteria
D VST Abnormal Criteria (VST_ABNORMAL_CRITERIA [129.1])
A partial stroke test is marked as abnormal if it fails one of the following criteria.
The device always evaluates a PST on the following criteria:
1. Target Travel achieved
2. Return to the normal end.
In addition to the above, any of the following can be selected to evaluate a Partial Stroke Test.
1. Breakout Time
2. Outgoing Pressure Threshold
j
k
INCOMING STROKE
l
m
n
RANDOMIZATION
TRIPPED
TRAVEL
PST START POINT
OUTGOING STROKE
o
NORMAL
DVC6200f Digital Valve Controller
Detailed Setup - Transducer Block
February 2017
73