Emerson Fisher FIELDVUE DVC6005 Series Quick Start Manual page 22

DVC6005 Digital Valve Controllers
March 2018
Position Transmitter or Discrete Switch
The DVC6005 HW2 HART communicating device has an optional output circuit that can be configured as a 4­20 mA
position transmitter or a discrete switch. Configuration of the output circuit requires the proper DIP switch electrical
setting on the main electronics board (figure 17) and also must be enabled with a user interface tool. The DIP switch
electrical setting is preconfigured at the factory when ordered properly.
Figure 17. OUTPUT Connections and Transmitter / Switch Settings
OUTPUT-
OUTPUT+
X0430
The position transmitter circuit derives its operating power from the control system input channel in the same manner
as a 2­wire transmitter.
The discrete switch is a solid state circuit (1­amp maximum) which opens and closes based on a user configurable trip
point. The trip point can be based on valve travel anywhere within the calibrated travel range, or based on a device
alert. In order for the switch output to function, the digital valve controller must be powered. If power is lost, the
switch will always go to the open state. The output circuit, whether operating as a transmitter or switch, is galvanically
isolated from the position control loop circuit such that different ground references between the 2 circuits are
allowed.
Wire the OUTPUT terminals as follows (refer to figure 18):
1. Route the field wiring into the terminal box through the conduit connection.
2. When applicable, install conduit using any local and national electrical codes that apply to the connection.
3. Connect the control system input channel positive wire to the OUT (+) terminal. Connect the control system input
channel negative wire to the OUT (­) terminal.
4. Replace and hand tighten the cover on the terminal box.
5. For applications that require a THUM Adapter, proceed to page 24. Otherwise proceed to page 27 for remote
mount feedback unit wiring.
22
DIP SWITCH FOR
TRANSMITTER/SWITCH
SELECTION
X0432
Quick Start Guide
D103784X012