AS-Interface Master News


Faster Shut-Off with the new Speed Monitor


With the new Speed Monitor for sine/cosine and SSI encoders (BWU2849) Bihl+Wiedemann offers a device with very short shut-off time and many new functions, such as monitoring ramp-down or position ranges. Profit from the wide functional scope of this module.

Fig. 1: Connecting the new speed monitor (BWU2849) to the encoder(s)

The new Speed Monitor in detail

Monitor up to 2 axis, up to SIL3, PLe



Shut-off time < 5 ms possible



For sine/cosine or SSI encoder



Detailed diagnostics and shut-off history via software or control



Chip card for easy device exchange



22,5 mm width



2 safe electronic outputs



Any number of safety functions per EN 61800-5-2 can be implemented



Adapter modules for simple connection between the frequency inverter and encoder cable, available as acessories:

Adapter for connecting 2 encoders (BWU2977)



 Sub-D cable adapter, 9-pole (BW2497) or 15-pole (BW2499)





Fig. 2: With the new speed monitor for sine/cosine and SSI (BWU2849) you can implement many safety functions in accordance with EN 61800-5-2.