倍加福KCD2-SR-EX2开关量安全栅

倍加福KCD2-SR-EX2开关量安全栅特征

•2通道隔离屏障

•24v直流电源(电源线)

•干燥接触或NAMUR输入

•继电器触点输出

•线路故障检测(LFD)

•外壳宽度12.5毫米

•根据IEC 61508，安全等级可达SIL2 

应用

这种隔离屏障用于内在安全应用。它传输数字信号(NAMUR传感器/机械)从危险区域到安全区域。接近传感器或开关控制形式a正常为安全区域负载开继电器触点。正常的输出可以使用开关S1和S2来反转状态。S3是切换用于启用或禁用现场电路的线路故障检测。在出现错误的情况下，继电器恢复到断电状态根据NAMUR NE44，状态和led指示故障。一个惟一的集体错误消息传递特性在什么时候可用与动力轨系统配套使用。由于其紧凑的外壳设计和低散热，该装置可用于检测位置、端部停止和在空间关键应用中切换状态。

技术参数

General specifications
Signal type Digital Input
Supply
Connection Power Rail or terminals 9+, 10-
Rated voltage Un 19 ... 30 V DC
Ripple ≤ 10 %
Rated current In ≤ 30 mA
Power loss ≤ 600 mW
Power consumption ≤ 600 mW
Input
Connection terminals 1+, 2-; 3+, 4-
Rated values acc. to EN 60947-5-6 (NAMUR)
Open circuit voltage/short-circuit current approx. 10 V DC / approx. 8 mA
Switching point/switching hysteresis 1.2 ... 2.1 mA / approx. 0.2 mA
Line fault detection breakage I ≤ 0.1 mA , short-circuit I ≥ 6.5 mA
Pulse/Pause ratio ≥ 20 ms / ≥ 20 ms
Output
Connection terminals 5, 6; 7, 8
Output I signal ; relay
Output II signal ; relay
Contact loading 253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 30 V DC/2 A resistive load
Minimum switch current 2 mA / 24 V DC
Energized/De-energized delay ≤ 20 ms / ≤ 20 ms
Mechanical life 107 switching cycles
Transfer characteristics
Switching frequency ≤ 10 Hz
Electrical isolation
Input/Output reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Input/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Output/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Input/b Basic insulation according to EN 50178, rated insulation voltage 300 Veff
Output/Output reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Directive conbity
Electromagnetic compatibility
Directive 2004/108/EC EN 61326-1:2013 (industrial bs)
Low voltage
Directive 2006/95/EC EN 61010-1:2010
Conbity
Electromagnetic compatibility NE 21
Degree of protection IEC 60529:2001
Ambient conditions
Ambient temperature -20 ... 60 °C (-4 ... 140 °F)