Power Hubs Pepperl+Fuchs

The PROFIBUS Power Hub is a modular, motherboard-based power supply system for two or four PROFIBUS PA segments. It consists of one or two motherboards and various plug-in modules for power supply to the fieldbus segment and a transparent coupler to PROFIBUS DP. Motherboards provide the following selectable attributes:

• Single or redundant power supply modules per segment
• Single or redundant gateway modules
• Screw or spring terminals with retaining screws
• Optional grounding bar

Output power per segment is up to 30 V/500 mA. Redundancy is selectable for the power supply and segment coupler.

All Power Hubs for four segments are approved for installation in Zone 2 or Division 2 hazardous areas. A choice of power supply modules with different ratings in combination with suitable device couplers enable all common methods of ignition protection at the field device utilizing the high-power trunk concept. They are flameproof enclosure Ex d and intrinsic safety Ex ia, Ex ib or Ex ic acc. to FISCO/Entity for any hazardous location.

Symmetric impedance generation ensures optimal signal quality. Impedance generation is based on passive components only, which guarantees low heat dissipation and a long service life.

The motherboard is designed for DIN rail installation. All modules snap on the motherboard without using tools. In redundant configuration, the modules can be replaced without interrupting the power supply or communication.

The optional advanced diagnostic module enables easy monitoring of various quality indicators of the fieldbus physical layer. This allows faster plant start-up, improved reliability of the segments, and more efficient troubleshooting.