Data Sheet

DVC2000 Digital Valve Controller
D103167X012
Product Bulletin
62.1:DVC2000
March 2014
6
Figure 2. Block Diagram
INPUT SIGNAL
(4-20 mA, 9 VOLTS)
TERMINATIONS
AND
POSITION
SENSOR
BOARD
MAIN BOARD
ASSEMBLY
ACTUATOR
PRESSURE
SENSOR
TRAVEL = 66.8%
14.6 MA 0.29 BAR
MINOR LOOP
FEEDBACK
DRIVE
SIGNAL
I/P
CONVERTER
(PRE-
AMPLIFIER
AIR SUPPLY
OUTPUT
SINGLE ACTING
RELAY
(POWER
AMPLIFIER)
I/P
PRESSURE
SIGNAL
NON-CONTACT
POSITION FEEDBACK
W8611
Y
Furthermore, the DVC2000 instrument can be
integrally mounted to the GX actuator, avoiding the
need for complicated mounting brackets. The
positioner mounts directly to an interface pad on the
actuator yoke leg with a secure 3-point mounting.
Internal passages inside the actuator yoke legs route
the pneumatic output of the digital valve controller to
the actuator casing, eliminating the need for external
tubing (only for the air-to-open configuration).
Electrical connections are made on the termination
strip, which uses cage clamp style wiring connectors.
The electrical wiring entry point is available with either
M20 or 1/2 NPT internal connections. Pressure
connections are available with either G1/4 or 1/4 NPT
internal connections.
Ordering Information
Refer to the Specifications section. Carefully review
each specification and indicate your choice whenever a
selection is to be made.
When ordering, specify:
1. Actuator type and size
2. Maximum actuator travel or rotation
3. Minimum actuator operating pressure
4. Hazardous area certification requirements
5. Options
a.
J G1/4 pneumatic and M20 conduit connections
or
J 1/4 NPT pneumatic and 1/2 NPT conduit
connections
b. Language pack:
J Standard—English, German,
French, Italian, Spanish, Japanese, Chinese,
Portuguese, Russian, Polish, and Czech or
J Optional—English, German, French, Italian,
Spanish, Japanese, Chinese, and Arabic
c. Supply pressure regulator
d. Valve diagnostic level (online performance
testing, offline advanced testing, basic
alerts/alarms)
e. I/O Options Package (includes position
transmitter and two (2) limit switches)
f. Pipe-away vent connector
g. HART filter