Instruction Manual

DVC6000 SIS
September 2013
2-20
mounted on the actuator mounting boss. Supply and
output pressure gauges may be supplied on the digital
valve controller. The output pressure gauges can be
used as an aid for calibration.
Connect the nearest suitable supply source to the
1/4 NPT IN connection on the filter regulator (if
furnished) or to the 1/4 NPT SUPPLY connection on
the digital valve controller housing (if 67CFR filter
regulator is not attached).
Output Connections
A factory mounted digital valve controller has its
output piped to the pneumatic input connection on the
actuator. If mounting the digital valve controller in the
field, connect the 1/4 NPT digital valve controller
output connections to the pneumatic actuator input
connections.
Single-Acting Actuators
When using a single-acting direct digital valve
controller (relay A or C) on a single-acting actuator
always connect OUTPUT A to the actuator pneumatic
input. Only when using relay C in the special
application (i.e. solenoid health monitoring) do you
need to connect OUTPUT B to the monitoring line.
When using a single-acting reverse digital valve
controller (relay B) on a single-acting actuator always
connect OUTPUT B to the actuator pneumatic input.
Only when using relay type B in the special application
(i.e. solenoid health monitoring) do you need to
connect OUTPUT A to the monitoring line.
Double-Acting Actuators
DVC6000 SIS digital valve controllers on double-acting
actuators always use relay A. When the relay
adjustment disc is properly set, OUTPUT A will vent to
the atmosphere and OUTPUT B will fill to supply
pressure when power is removed from the positioner.
W9131-1 SIS
Figure 2-18. FIELDVUE DVC6010 SIS Mounted
on a Fisher 585C Piston Actuator
For example, to have the actuator stem extend from
the cylinder with increasing input current on a vertically
mounted sliding-stem valve with a piston actuator,
connect OUTPUT A to the upper actuator cylinder
connection and connect OUTPUT B to the lower
cylinder connection. Figure 2-18 shows a digital valve
controller connected to a double-acting piston actuator
that will extend the stem with increasing input current.
To have the actuator stem retract into the cylinder with
increasing input current, connect OUTPUT A to the
lower cylinder connection and OUTPUT B to the upper
cylinder connection.
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