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7.3 Simple FF network and system architecture
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Figure 37: FOUNDATION Fieldbus architecture
7.4 Wiring procedure
Follow these steps to wire the transmitter:
— Remove the temporary plastic cap from one of the two
electrical connection ports located at both sides in the
upper part of the transmitter housing.
— These connection ports may have a 1/2 inch internal NPT
or M20 threads. Various adaptors and bushings can be
fitted to these threads to comply with plant wiring (conduit)
standards.
— Remove the housing cover of the "field terminals" side.
See the indication on the label on top of the housing.
In an Explosion-Proof / Flame-Proof installation, do not remove
the transmitter covers when power is applied to the unit.
— Run the cable through the cable gland and the open port.
— Connect the positive lead to the "+" terminal, and the
negative lead to the "–" terminal.
— Plug and seal the electrical ports. Make sure that when
the installation has been completed, the electrical ports
are properly sealed against entry of rain and/or corrosive
vapors and gases.
Warning - General risk. Cable, cable gland and unused port
plug must be in accordance with the intended type of
protection (e.g. intrinsically safe, explosion proof, etc.) and
degree of protection (e.g. IP6x according to IEC EN 60529 or
NEMA 4x). See also the "EX SAFETY" ASPECTS AND "IP"
PROTECTION. In particular, for explosion proof installation,
remove the red temporary plastic cap and plug the unused
opening with a plug certified for explosion containment.
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LD
PS
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PwC - Power Conditioner
T
— If applicable, install wiring with a drip loop. Arrange the
drip loop so the bottom is lower than the conduit
connections and the transmitter housing.
— Put back the housing cover, turn it to seat O-ring into the
housing and then continue to hand tighten until the cover
contacts the housing metal-to-metal. In Ex-d (Explosion
Proof) installation, lock the cover rotation by turning the
set nut (use the 2mm Allen key supplied with the
instrument).
7.5 Electrical connection via connectors
Special Fieldbus Connectors are also available as optional item
for the easy connection of the transmitter to the bus. Below
there are the pictures of the two selected models with different
plugs.
Figure 38: Fieldbus connectors (respectively 7/8" and M12x1)
Important. The 7/8" PLUG model is considered the default
version for the 266 PdP – FF version. The connector thread
will be in accordance with the selected housing model.
By default the housing thread is 1/2 - 14 NPT
2600T Series Pressure transmitters | OI/266/FF-EN Rev. B 31
7 Transmitter wiring
- Operating station
- Engineering station
- Controller
- Ethernet TCP/IP
- FF-HSE
- FF-H1
- Linking Device
- Power Supply
- Termination
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