Rotation direction safety monitor MS640

standstillspeed

Programmable motion monitor unit for secure and redundant control of motion sequences • Suitable for monitoring of overspeed, underspeed, standstill, direction of rotation, slip, shaft or gearbox fracture, impermissible motion etc. • Four digital control inputs + six logical inputs for plausibility considerations and control of logical conditions • Two programmable A, /A, B, /B quadrature encoder inputs for counting frequencies up to 500 kHz • Four safety relays with forced-guided contacts and four high-speed transistor outputs, all with feedback and control of the actual output state • Serial interface for remote access to all functions and data by superior control units • High safety level on the machine site by redundant and logical control algorithms • High functional safety of the monitor itself by internal test routines and diagnostics • Application Example: Hoisting Unit