Instruction Manual

ManualsBrandsEmerson ManualsValve InstrumentationEmerson Fisher FIELDVUEDVC6200 SIS Digital Valve Controller

DVC6000 SIS

September 2013

2-32

NOTES:

1/4-18 NPT X 3/8 OD TUBING

ELECTRICAL WIRING

DVC6000 SIS DIGITAL

VALVE CONTROLLER

LOGIC SOLVER

SUPPLY

SINGLE-ACTING SPRING AND DIAPHRAGM ACTUATOR

OR PISTON ACTUATOR WITH SPRING RETURN

19B6913-B

19B6914-A

E0769-1

VENT

24 VDC OR

CUSTOMER SPECIFIED

POWER SUPPLY

4-20 mA DC

(NORMALLY VALVE IS

FULLY OPEN WITH

20 mA SIGNAL TO DIGITAL

VALVE CONTROLLER)

PRINTED WIRING BOARD

DIP SWITCH SET FOR

POINT-TO-POINT (DOWN

POSITION)

PISTON ACTUATOR

VALVE DISC

FAILS CLOCKWISE

ON LOSS OF AIR

Figure 2-28. Example of FIELDVUE DVC6000 SIS Digital Valve Controller Installed in a 4-Wire SIS System

ASCO EFX8553G305 103594 or

EFX8551G305 103594 low-powered

solenoid valves with aluminum bodies

can be used where the application

requires zero differential pressure and

when the solenoid valve exhaust port is

connected to another solenoid valve

used as a selector or diverter.

For more information, refer to the ASCO

catalog or contact your Emerson

Process Management sales office.

Installation in a 2-Wire System

Figures 2-29 and 2-30 are examples of the digital

valve controller installed in a 2-wire system. In these

installations the logic solver provides a single 24 VDC

signal that powers both the digital valve controller and

the optional solenoid valve (a low power consumption

model such as the ASCO EF8316G303,

EF8316G304, EFX8553G305 103594, or

EFX8551G305 103594). The digital valve controller’s

control mode is set to “digital”. When a shutdown

condition exists, the logic solver cuts power to both the

digital valve controller and the solenoid valve (if

connected), causing the valve to move to it’s zero

travel position. A Fisher LC340 line conditioner is

required to allow HART communications over the

segment. Alternatively, an impedance boosting

multiplexer (available from MTL, Pepperl+Fuchs/Elcon

and others) may be used, eliminating the need for a

line conditioner when installed as per figure 2-30.

Note

Use of a solenoid valve is optional,

and dependent on stroking speed and

other operating conditions.