Flowserve StarPac 3 - Manual (Page 19)

19
StarPac Intelligent Control System FCD VLENIM0066-05 04/14
flowserve.com
®
1. Linear Double-acting Actuators
For a linear air-to open actuator, the Output 1 port of the positioner manifold is tubed to the bottom side of
the actuator. The Output 2 port of the positioner manifold is tubed to the top side of the actuator. For a linear
air-to-close actuator the above configuration is reversed.
2. Rotary Double-acting Actuators
For a rotary actuator, the output 1 port of the positioner manifold is tubed to the bottom side of the actuator.
The Output 2 port of the positioner manifold is tubed to the top side of the actuator. This tubing convention
is followed regardless of air action. On rotary actuators, the transfer case orientation determines the air ac-
tion.
3. Single-acting Actuators
For single-acting actuators, the Output 1 port is always tubed to the pneumatic side of the actuator regardless
of air action. The Output 2 port must be plugged.
9 Wiring and Grounding Guidelines
WARNING: This product has electrical conduit connections in either thread sizes 1/2” NPT or M20 which
appear identical but are not interchangeable. Housings with M20 threads are stamped with the letters M20
above the conduit opening. Forcing dissimilar threads together will damage equipment, cause personal injury
and void hazardous location certifications. Conduit fittings must match equipment housing threads before
installation. If threads do not match, obtain suitable adapters or contact a Flowserve representative. In all
cases always use suitable rated cable glands. Unused openings shall be installed with suitably rated close-out
plugs.
Figure 5: Shielded Wire Diagram
STOP!
Housing EARTH
Terminal
Field
Terminators
+ 24V
- 24V
RS232/RS485 Converter
+ RS485
- RS485
No Shield Connection at
StarPac 3 User Interface Terminal
Instrument
Ground
Instrument
Ground
Shields
Shields
+ Analog Output
- Analog Output
DCS
+ Analog Output
- Analog Output