德国P+F安全栅KFD2-SL2-EX2开关量安全栅特征

•双通道安全栅

•24v直流电源(电源线)

•11.7 V直流输出45毫安

•逻辑输入，非极化

•线路故障检测(LFD)

•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。该设备为螺线管、led和audible提供电源位于危险区域的警报器。它是由逻辑信号控制的。输入有两个定义状态:1-信号= 16v直流…30v直流，0-信号= 0 V直流…5 V直流。当前消费的输入大约是3毫安。满载时，45毫安的11.7 V可用于危险区域应用程序。如果字段阻抗> 10 kΩ铅破损或< 50Ω对于短路，检测到线路故障。一个故障是由led信号和一个单独的集体错误消息输出。

技术参数

General specifications
Signal type Digital Output
Functional safety related parameters
Safety Integrity Level (SIL) SIL 2
Supply
Connection Power Rail or terminals 14+, 15-
Rated voltage Ur 20 ... 30 V DC
Power consumption ≤ 3.3 W at 45 mA output current
Input
Connection side control side
Connection terminals 7, 8, 9
Input current approx. 3 mA at 24 V DC
Signal level 1-signal: 16 ... 30 V DC
0-signal: 0 ... 5 V DC
Output
Connection side field side
Connection channel 1: terminals 1+, 2-, 3
channel 2: terminals 4+, 5-, 6-
Internal resistor Ri 272 Ω
Current Ie ≤ 45 mA
Voltage Ue ≥ 11.7 V
Open loop voltage Us ≥ 24 V
Output signal These values are valid for the rated operating voltages from 20 ... 30 V DC.
Energized/De-energized delay ≤ 20 ms / ≤ 20 ms
Line fault detection signal at short-circuit RB < 50 Ω, lead breakage RB > 10 kΩ , test current < 650 μA