Endress+Hauser Levelflex FMP56 Operating Instructions Manual page 37

Levelflex FMP56, FMP57 HART
Endress+Hauser
Terminal assignment, 2-wire: 4 to 20 mA HART, switch output
A
2
1
 15 Terminal assignment, 2-wire: 4 to 20 mA HART, switch output
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Connection 4 to 20 mA, HART passive: terminals 1 and 2, without integrated overvoltage protection
2 Connection, switch output (open collector): terminals 3 and 4, without integrated overvoltage protection
3 Connection, switch output (open collector): terminals 3 and 4, with integrated overvoltage protection
4 Connection 4 to 20 mA, HART passive: terminals 1 and 2, with integrated overvoltage protection
5 Terminal for cable shield
Function diagram 4 to 20 mA HART, switch output
3
2
1
 16 Function diagram 4 to 20 mA HART, switch output
1 Active barrier for power supply; observe terminal voltage.
2 Resistor for HART communication (≥ 250 Ω); observe maximum load.
3 Connection for Commubox FXA195 or FieldXpert (via VIATOR Bluetooth modem)
4 Analog display unit; observe maximum load
5 Cable screen; observe cable specification
6 Measuring instrument
7 Switch output (open collector)
Connection example of relay
 17 Connection example of relay
5
+ +
1
- -
2
+
3
-
4
3+
R
+
i
-
4-
Electrical connection
B 3
4
5
4
5
6
I
Y
7
A0036500
A0036501
A0015909
37