Fisher FIELDVUE DVC6200 Quick Start Manual page 38

DVC6200 Digital Valve Controllers
January 2017
De-Energize to Trip (DETT) DVC6200 SIS,
no Solenoid Valve
In a typical de­energize to trip application without a solenoid valve, the logic solver trip signal de­energizes 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 no­air, fail safe position.
Figure 30. FIELDVUE DVC6200 SIS Powered
with 4-20 mA
LOGIC SOLVER
4-20 mA DETT
E1457
1. If the DVC6200 SIS is powered with 4­20 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 4­20 mA control signal the DIP switch must be in the point­to­point loop position,
as shown in table 2. The control mode must be set to analog. This is set at the factory when ordered properly.
38
Figure 31. FIELDVUE DVC6200 SIS Powered
with 0-24 VDC
AS
E1458
Quick Start Guide
LOGIC SOLVER
0-24 VDC DETT
LC340
LINE CONDITIONER
D103556X012
SIS
AS