Allen-Bradley 1734-FPD Point I/O Field Potential Distributor

Configured for power isolation and potential distribution in Point I/O platforms, the Allen-Bradley 1734-FPD (1734-FPD Field Potential Distributor) provides direct physical and electrical execution of circuit segmentation across the POINTBus architecture.

Hardware Specifications

Industrial Control and I/O Density Scaling

The 1734-FPD is installed between I/O modules to create separate power groups within a single POINT I/O assembly. It facilitates I/O density scaling by allowing mixed voltage levels or isolated power segments while maintaining the continuous POINTBus communication path. The module is strictly a pass-through device for the internal bus; therefore, it does not support firmware flash compatibility independently, as it functions purely as an electrical distribution node within the system topology.

Frequently Asked Questions

Q: Does the 1734-FPD provide overcurrent protection for the field power circuit?

A: No. The 1734-FPD is a distribution module. It does not contain internal fuses or overcurrent protection circuitry. External protection must be provided by the user in accordance with the system power requirements.

Q: Can the 1734-FPD be used to isolate communication signals?

A: No. The module only distributes field-side potential. The internal POINTBus communication signals pass through the module unimpeded and are not electrically isolated from the rest of the communication chain.

Field Installation Guidelines

• Placement: Position the 1734-FPD at the point in the POINT I/O rack where a new power potential is required or where galvanic isolation between groups of I/O modules is necessary.
• Mounting: Secure the module onto a 35 mm DIN rail. Ensure the locking mechanism is fully engaged to maintain electrical contact with the POINTBus and adjacent terminal bases.
• Wiring: Terminate field power to the distributor terminals. Use the specified 0.6 Nm screw torque to ensure reliable contact and prevent thermal degradation of the connection under continuous 10 A loads.
• Grounding: While the module distributes field potential, ensure the common reference for the connected field power source is appropriately tied to the cabinet's protective earth ground to minimize potential differences and surge risks.