Product Description:

Bosch Rexroth Indramat designs the XFE01.1-FB-01 fieldbus expansion module for controllers in the XM21 IndraControl Systems series. In an automation cabinet, the module extends the embedded PLC with a dedicated Sercos communication master so that distributed drives, I/O stations, and motion devices can be addressed deterministically over one optical ring. By bridging the controller backplane to high-speed real-time Ethernet, it ensures precise axis coordination and time-synchronous data exchange typical of industrial machinery.

The module carries a protection rating of IP20, so it is intended for installation inside an enclosed control panel where accidental contact and solid objects are limited. Its embedded controller interfaces to the network as a Sercos III Master, which means it initiates telegrams and schedules cycle times for all attached slaves. An internal resettable fuse rated at 4 A safeguards the 24 V supply rail against over-current, while galvanic isolation between connectors XF3 and XF4 withstands 1200 V DC for one minute to prevent ground loops. During operation the electronics draw only 0.2 A, allowing the module to share low-power auxiliary supplies with other automation components. Brief voltage interruptions up to 10 ms are tolerated without loss of communication.

Energy demand is limited to 4.8 W, so heat dissipation remains low within dense rail layouts. The logic is powered from a 24 V DC PELV or SELV source, and a diode on the input offers reverse-polarity protection to avoid accidental damage during commissioning. Mechanical attachment follows the DIN rail profile TH 35-7.5, allowing tool-free clipping adjacent to IO slices or safety relays. The housing resists shocks of up to 30 g for 11 ms, meeting typical machine-mounted vibration demands. Despite these mechanical safeguards, overall mass is only 0.120 kg, so additional support brackets are unnecessary.