KRAL BEM 500 - Pin Assignment

3 Technical data
3.5 Pin assignment
3.5 Pin assignment
Component Connection/function Terminal
Pick up NPN/PNP
Push-pull
Namur FlowmeterA FlowmeterB
Pick upA1 or B1 U+24VDC U+8.2VDC 18 29
Signal Signal 19 30
Gnd – 20 31
Pick upA2 or B2
(+90°)
U+24VDC U+8.2VDC 6 39
Signal Signal 7 40
Gnd – 8 41
Analog output 4–20mA 0–10V
Analog output1 Signal 16 21
Gnd 17 22
Analog output2 Signal 27 32
Gnd 28 33
Pulse output Pulse output1 Signal 1
Gnd 2
Pulse output2 Signal 34
Gnd 35
Relay output Relay output1
bypass valve/filling
valve
NO contact 9
Switching contact 10
NC contact 11
Relay output2
group error message
NO contact 42
Switching contact 43
NC contact 44
Temperature
sensor
FlowmeterA FlowmeterB
Temperature sensor Signal 3 36
Common 4 37
Common 5 38
Serial interface RS 485 B 14
A 15
RS 232 TxD 23
RxD 24
Gnd 25
Gnd 26
Power supply Different power supply units are available as accessories Ä Accessories,Page42.
+24V DC 12
Gnd 13
Tab.4: Pin assignment
Operating instructions
OIE 12en-GB Edition 2020-03
9