Standstill monitor
VersiSafe

Features

• SIL 3 according to DIN EN 61508 and DIN EN 61511
• SIL CL 3 according to EN 62061
• Performance Level e according to DIN EN ISO 13849-1
• Safety category 4 according to DIN EN 954-1
• no external initiators necessary
• independant of direction
• broken wire detection
• positive guided safety contacts: 3 NO contacts, 1 NC contact for AC 250V
• adjustable voltage setting
• adjustable standstill time delay
• LED indicators for standstill, event of line breakage and operation voltage
• suitable for operating with inverters
• width 45 mm
• nominal motor voltage up to 690V

Functions

• safe standstill detection on three- and single-phase motors
• detection of standstill via monitoring of remanence voltage
• redundant measurement via two independent channels
• adaptable to various motor types and applications

Safety rated data

• values according to EN ISO 13849-1:
• safety category: 4
• performance level: e
• MTTF_d: 93a
• DC_avg: 99,0%
• d_op: 365 days/year
• h_op: 24 hours/day
• t_Zyklus: 28,8E+0,3s/zyklus = 1 /8 hours
• values according to IEC EN 62061 / IEC EN 61508:
• SIL CL: 3 IEC EN 62061
• SIL 3 IEC EN 61508
• HFT: 1 (Hardware-Failure-Tolerance)
• DC_avg: 99,0%
• SFF 99,7%
• PFH_D: 4,10E-10 h_-1

Preferred application areas

• Reliable detection of the stationary condition for:
• safety circuits according per IEC/EN 60204 in systems with hazardous machine parts (e.g. for releasing protective devices)
• prevention of machine damage (unexpected start-up)