Rotational speed monitor 
VersiSafe Speed

Features

• safe, sensorless drive monitoring
• over-, underfrequency or window monitoring of single-phase or 3-phase AC systems
• user friendly frontside display
• - comfortable, menu guided configuration
• - for set point and actual value of Hz
• manual or auto-reset
• simple and time-saving setup without PC
• extensive diagnostic functions
• possibility of overriding the speed by a supervisory function (muting)
• up to 4 activatable operating modes
• (e.g. automatic-, installation- or service operation)
• galvanic seperation between measuring input,
• auxiliary voltage and output contacts
• 2-channel function
• forcibly guided output contacts
• LED-indicators and 2 semiconductor monitoring output
• analog output
• up to 4 frequency modes selectable
• width 45mm

Functions

• fast reaction time by measuring duration of cycle
• of input frequency
• adjustable hysteresis
• adjustable reset delay function from 0 ... 100 s
• adjustable start up time delay from 0 ... 100 s
• adjustable alarm delay from 0,1 ... 100 s

Safety rated data

• safety category 4 / Performance Level (PL) e to DIN EN ISO 13849-1
• SIL-Claimed Level (CL) 3 to EN 62061 and EN 61800-5-2
• SIL 3 to IEC 61508 and EN 61511
• safety functions according to EN 61800-5-2
• STO (Safe Torque Off),
• SOS (Safe Operating Stop),
• SLS (Safety Limited Speed),
• SSM (Safe Speed Monitor),
• SSR (Safe Speed Range)

Preferred application areas

• monitoring of output frequency of inverters
• platform technics
• wood working machinery
• machine tools
• wind generator machines
• crane applications