Product Description:

The CFL01.1-V1 is an I/O communications module manufactured by Bosch Rexroth Indramat for the CFL Modules series. It plugs onto the system back-plane of Rexroth control racks and presents a galvanically isolated CAN interface so motion controllers, drives, and human-machine panels can exchange status words and setpoints without external gateways. By translating the differential bus lines to logic levels and monitoring supply quality, the unit supports deterministic field traffic and provides housekeeping power that adjacent cards can use during startup. This arrangement keeps the communication path inside the rack and reduces the need for separate interface hardware.

This module draws its logic power from the back-plane bus. The bus supply is rated at 24 V, and under that voltage the card consumes only 55 mA, translating to a dissipated bus load of 1.4 W. Field wiring reaches the board through the shielded X7D, 5-pin connector; the pinout separates V-, CAN_L, shield, CAN_H, and V+ to reduce crosstalk. Once power arrives, an onboard regulator converts it to an internal rail of 3.3 V that can source up to 400 mA for the microcontroller and transceiver set. The shielded connection and low current draw help the module fit into densely populated racks without adding significant electrical noise.

The module remains in operation at ambient temperatures up to +55 °C without derating, and it can function at elevations as high as 2700 m. Conformal coating and enclosure venting let the circuitry tolerate relative humidity up to 95%, while reinforced solder joints withstand mechanical shocks of 15 g during handling. These protections help the board maintain reliable communication in enclosed cabinets where moisture, vibration, and temperature changes are part of normal service. For non-operating periods, the unit endures storage temperatures up to +70 °C, allowing spare modules to tolerate warehouse conditions.