Fisher FIELDVUE DVC6200 Instruction Manual page 29

Instruction Manual
D103605X012
Zero Power Condition—The position of the valve (open or closed) when the electrical power to the instrument is
removed. Zero Power Condition (ZPC) is determined by relay type, as shown in figure 3‐3.
Figure 3‐3. Zero Power Condition
Travel Sensor Motion
WARNING
If you answer YES to the prompt for permission to move the valve when determining travel sensor motion, the instrument
will move the valve through a significant portion of its travel range. To avoid personal injury and property damage caused
by the release of process fluid or pressure, isolate the valve from the process and equalize pressure on both sides of the
valve or bleed off the process fluid.
Select Clockwise/Toward Bottom, or Counterclockwise/Toward Top. Travel Sensor Motion establishes the proper
travel sensor rotation. For quarter‐turn actuators determine rotation by viewing the rotation of the magnet assembly
from the back of the instrument.
Note
Travel Sensor Motion in this instance refers to the motion of the magnet assembly. Note that the magnet assembly may be
referred to as a magnetic array in user interface tools.
D For instruments with Relay A and C: If increasing air pressure at output A causes the magnet assembly to move
down or the rotary shaft to turn clockwise, enter CW/To Bottom Inst. If it causes the magnet assembly to move up,
or the rotary shaft to turn counterclockwise, enter CCW/To Top Inst.
D For instruments with Relay B: If decreasing air pressure at output B causes the magnet assembly to down, or the
rotary shaft to turn clockwise, enter CW/To Bottom Inst. If it causes the magnet assembly to move up, or the rotary
shaft to turn counterclockwise, enter CCW/To Top Inst.
Maximum Supply Pressure
Enter the maximum supply pressure that is required to fully stroke the valve.
A
Relay Type
Single‐Acting Direct (Relay A or C)
Double‐Acting (Relay A)
Single‐Acting Reverse (Relay B)
B
Configuration
Loss of Electrical Power
Port A pressure to zero.
Port A pressure to zero.
Port B pressure to full supply.
Port B pressure to full supply.
February 2017
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