TU505-FBP and TU506-FBP for FBP Communication Interface Modules\

  • TU505-FBP, FBP terminal unit, screw terminals
  • TU506-FBP, FBP terminal unit, spring terminals
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The FBP interface modules plug into the FBP terminal unit. When properly seated, they are secured with two mechanical locks. All the electrical connections are made through the FBP terminal unit, which allows removal and replacement of the FBP interface modules without disturbing the wiring at the FBP terminal unit.

TU505-FBP and TU506-FBP are specifically designed for use with AC500/S500 FBP interface modules (e.g. DC505-FBP).

Screw terminals Spring terminals
Conductor ../_images/cb0f5afaa8bcdff30a3313903f4b6c2f Screwdriver Conductor ../_images/9660db05a8bdfbeb0a3313906e759f77 Screwdriver (opens terminal)

Note

For a detailed description of the mounting, disassembly and electrical connection of the terminal units and the I/O modules, please refer to the “System Assembly, Construction and Connection” chapter AC500 (Standard).

The terminals 1.8 to 2.8 and 1.9 to 2.9 are electrically interconnected within the FBP terminal unit and always always the same assignment, irrespective of the inserted module:

  • Terminals 1.8 to 2.8: process voltage UP = +24 V DC
  • Terminals 1.9 to 2.9: process voltage ZP = 0 V

The assignment of the other terminals depends on the inserted FBP interface module.

The supply voltage of 24 V DC for the module’s circuitry comes from the FieldBusPlug. If the FieldBusPlug is removed, the FBP interface module will have no supply voltage. Consequently, none of the decentralized communication interface modules connected via the I/O bus will have any supply voltage either.