Fisher FIELDVUE DVC6200 Instruction Manual page 125

Instruction Manual
D103409X012
Figure A‐3. FIELDVUE DVC6200 Digital Valve Controller Block Diagram
INPUT SIGNAL
4-20 mA
+
HART
TERMINAL BOX
AUXILIARY
TERMINALS
VENT
E1361
Figure A‐4. FIELDVUE DVC6200 Digital Valve Controller Assembly
HOUSING
TERMINAL BOX WITH COVER
W9914
PRINTED
WIRING BOARD
DRIVE
SIGNAL
I/P
PNEUMATIC
CONVERTER
RELAY
PRINTED WIRING
BOARD ASSEMBLY
MODULE BASE ASSEMBLY
Principle of Operation
VALVE TRAVEL FEEDBACK
OUTPUT A
SUPPLY PRESSURE
OUTPUT B
PNEUMATIC
RELAY
I/P CONVERTER
May 2013
VALVE AND ACTUATOR
GAUGES
COVER
125