BWU2427ASi Speed Monitor Modular for 2 encoders, sin/cos

Product description

ASi Speed Monitor Modular for 2 encoders, sine/cosine, for safe monitoring of speed of up to 2 indepentend axes, encoder/sensor connection via 2 x Mini I/O, diagnostic and configuration via ASi connection, ASi connection via clamps, ASi addresses depending on configuration, IP20

Technical data

Type Speed Monitor Modular
Safe Monitoring speed
Encoder signal/Sensor signal sine/cosine, SSI
Number of monitored axes up to 2 independent axes
Inputs Safety, SIL 3, Cat. 4

Safe inputs can be configured as 1-channel or 2-channels depending on the desired application or PL and SIL level.

no local safe inputs
Outputs Safety, SIL 3, cat. 4 no local safe output
Encoder/Sensor connection Mini IO
Diagnostic and configuration interface

Access to ASi master and safety monitor via own software from Bihl+Wiedemann using the diagnostic interface (e.g. USB, RJ45, RS232). For certain devices with Ethernet-based fieldbus (PROFINET, EtherNet/IP), there is also the option of diagnostics and configuration directly via the fieldbus interface.


The latest version of the device description file of the gateway/gateway with integrated safety monitor (GSD, GSDML, EDS, etc.) is available in the "Downloads" section of the respective device.

via ASi

How to troubleshoot an existing ASi installation


    The product has earned the following certifications: