Flowserve MX HART Field Unit - Manual (Page 13)

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MX/QX HART Field Unit FCD LMENIM2340-00 – 1/14
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Figure 2.6 – Multi-drop Topology (Loop Powered)
2.4 Site and Network Cable Preparation
2.4.1 Site Preparation
Prepare the site and associated equipment for operation of the MX/QX HART actuators as follows:
1. Prepare a detailed site plan consisting of the following:
• Actuator locations and tag numbers
• Junction boxes, terminal strip locations and tag numbers
• Power supplies/conditioners
• Provide free access to the MX/QX control panel and terminal block for setup, configuration and troubleshooting.
2. Prepare the cable and label all wires.
3. Install power and control wires in separate conduits.
4. Install and verify earth grounds. The cable shields should be tied together and grounded at only one point. The
single ground point is typically located at or near the system host device.
2.4.2 Network Cable Preparation
Care must be taken during cable preparation:
• When stripping the insulation, use wire strippers that do not nick the wire.
• Use crimp ferrules to prevent stranded wires from getting loose and shorting to other wires.
• Use vibration-resistant wiring terminals that hold the ferrule securely.
2.4.2.1 Network Cable Connection to the MX/QX HART Unit
The field device is connected to the network through the MX/QX terminal block. The network cable is connected to the
terminal block shown in Figure 2.7.