Описание

Function Speed and frequency monitor
Cat. / PL according to EN ISO 13849-1 4/e
SIL CL according to IEC/EN 62061 3
1- / 2-channel 1, 2
Forcibly guided output contacts max. 2 s
Indicator contacts 2 hl
Nominal voltage DC +
Thermal current Ith max. 8 A
Width 45 mm
Type UH 6937
According to- Performance Level (PL) e und category 4 to EN ISO 13849-1- SIL-Claimed Level (SIL CL) 3 to IEC/EN 62061- Safety Integrity Level (SIL 3) to IEC/EN 61508- Safety Integrity Level (SIL) 3 to IEC/EN 61511 Over-, underfrequency or window monitoring of single or3-phase in AC systems Integrated user friendly frontside display- Comfortable, menu guided configuration- For set point and actual value of Hz Fast reaction time by measuring duration of cycle of input frequency Universal measuring inputs for AC-voltages of 8 ... 280 V forsingle-phase monitoring as well as 16 ... 690 V forsingle- and 3-phase monitoring Suitable for inverters- Variant /0_ _ : 1 ... 700 Hz- Variant /1_ _ : 1 ... 1200 Hz 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 Manual or auto-reset galvanic separation between measuring input, auxiliary voltage andoutput contacts 2-channel function Forcibly guided output contacts LED-indicators and 2 semiconductor monitoring output Width 45 mm With pluggable terminal blocks for easy exchange of devices Variant /_ _1:- it is possible to set a variety of response parameters by means of a4 bit selection facility from an overriding control unit,- analog output (2V to 10V) corresponding to the current speed,- the possibility of overriding the speed by asupervisory function (muting),- adjustable switchover time from 0 ... 100 s''