Product Description:

The 1M.F5.K8G-VZ47 is a safety option board engineered by KEB for integration into drive inverters belonging to the F5 Combivert Axis Drives series. Inserted into the drive’s control slot, the board expands feedback handling so that the axis controller can process incremental or absolute encoder signals while meeting machine-safety requirements. Within an automation cell, it allows the drive to monitor position, velocity, and safe stop conditions without external modules, reducing wiring and cabinet space.

The board is powered from the drive’s logic bus and draws a 500 mA load on the dedicated 5.2 V rail, a value that must be considered when sizing the internal power supply. It supports two feedback pathways. Channel 1 accepts absolute data through a D-Sub 15-pole connector. That port, labeled X3A, works with an SSI-SIN/COS encoder format so the drive can read high-resolution position words and analog sine-cosine tracks at the same time. A total of 2 encoder channels are available, allowing simultaneous processing of primary motion feedback and secondary monitoring feedback for redundant checking.

The second path is intended for speed or incremental reference devices. Channel 2 is cabled through a D-Sub 9-pole plug, identified on the PCB as X3B. It transmits a differential TTL pulse train that conforms to the RS422 signaling standard, and the channel is configured as an output so downstream controllers can receive conditioned encoder data directly from the drive. The board’s role as a safety board enables STO or SS1 functions in supported drive configurations, while the housing form factor coded G ensures it fits the designated slot width in every F5 frame size. An auxiliary Uvar rail supplies 24 V logic at 170 mA, delivering power for optically isolated outputs without loading the drive’s main control voltage.