Flowserve 3400IQ - Manual (Page 4)

Logix 3400IQ Digital Positioner FCD LGENIM3403-00 – 11/07
Hardware Requirements
In order to have a FF network the following items are required:
FF device (such as the Logix 3400IQ digital positioner) and the DDs for the device
1. FF power supply 9-32 VDC. The Logix 3400IQ digital positioner draws about 23 mA.
2. FF power supply conditioner. The power conditioner allows for the communications signals to be
superimposed onto the power supply line (much like the HART filter).
3. FF terminator. This device prevents excess noise from getting onto the bus due to improper termination
of unused FF spurs.
4. NI Fieldbus card. National Instruments produces both a PC-AT, and a PCMCIA Fieldbus card.
5. NI Configurator software, or other vendor’s configurator.
6. PC running Windows XP or NT operating system with a minimum of 16MB of RAM.
Pentium or Pentium II processor is highly recommended.
A PC running the Configurator, the power supply and the FF device are all connected in parallel to the FF
Power Supply Conditioner. The Logix 3400IQ is not polarity sensitive. Either wire can connected to either
terminal screw on the user interface terminal block. The following figure shows a simple wiring diagram, for
more information refer to the Logix 3400IQ Digital Positioner Installation & Reference Guide.
Power Supply
9-32 VDC
FF Terminator
FF Power Supply
Conditioner and Terminator
Computer running
configurator software
Figure 1: Logix 3400IQ Digital Positioner Wiring Diagram
NOTE: Contact information for the FF supply, conditioner and terminator can be found in the last section of
this document.
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