Dold: Now with safe phase sequence resp. rotational direction monitoring

In addition to safe speed monitoring, the sensorless speed and frequency monitor UH 6937 of the SAFEMASTER S series now also offers safe monitoring of the phase sequence resp. direction of rotation of motors with 3-phase AC voltages. If the motor does not move in the desired direction, the device switches off safely. Ideal for all applications where a safe direction of rotation is essential, such as automation processes, compressors, machine tools and wind turbines. The device allows up to four operating modes for different configuration of overfrequency, underfrequency, window range and direction of rotation.

• Simple and time-saving start-up without PC
• Direction of rotation monitoring fulfils Cat. 2 / PL d while retaining Cat. 4 / PL e for frequency monitoring

For more information, please visit: https://www.dold.com/en/company/news/