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Quick Start Guide

ManualsBrandsEmerson ManualsValve InstrumentationEmerson Fisher FIELDVUEDVC6200f Digital Valve Controller
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Quick Start Guide
D103556X012
DVC6200 Digital Valve Controllers
January 2014
35
De-Energize to Trip (DETT) DVC6200 SIS, no Solenoid Valve
In a typical deenergize to trip application without a solenoid valve, the logic solver trip signal deenergizes the digital
valve controller to 4 mA (or 0 VDC). This drives the digital valve controller to the no output pressure condition. As a
result, the safety valve moves to its noair, fail safe position.
Figure 32. FIELDVUE DVC6200 SIS Powered
with 4-20 mA
LOGIC SOLVER
AS
4-20 mA DETT
E1457
Figure 33. FIELDVUE DVC6200 SIS Powered
with 0-24 VDC
0-24 VDC DETT
LOGIC SOLVER
LC340
LINE CONDITIONER
AS
E1458
1. If the DVC6200 SIS is powered with 420 mA, connect the logic solver output card +/ terminals to the
corresponding DVC6200 SIS LOOP +/terminals.
Note
For the digital valve controller to operate with a 420 mA control signal the DIP switch must be in the pointtopoint loop position,
as shown in table 2. The control mode must be set to analog. This is set at the factory when ordered properly.