KROHNE OPTIMASS with MFC 300 EN - Manual (Page 87)

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9.9.2 Basic I/O Connection Diagrams
9.9.1 MFC 300W connection block
Open-circuit and short-circuit monitoring in accordance with EN 60947-5-6 (NAMUR) can only
be done from the infeeding device. Due to the principle involved, only monitoring of control
input CN takes place in the signal converter.
Ia Ip Current output active or passive
Pa Pp Pulse / frequency output active or passive
PN Pulse / frequency output passive to NAMUR EN 60947-5-6
Sa Sp Status output / limit switch active or passive
SN Status output / limit switch passive to NAMUR EN 60947-5-6
Ca Cp Control input active or passive
CN Control input active to NAMUR EN 60947-5-6:
mA
Milliammeter
0...20 mA or 4...20 mA and others
0 0 0
Σ
Counter:
Electronic (EC) or
Electromechanical (EMC)
Button, N/O contact or similar
DC voltage source (U Uext)external power supply, any connection polarity
DC voltage source (Uext)
Connection polarity as shown in the diagrams
1
4 way I/O plug
2
5 way I/O plug
A
B
B-
C-
C
D
D-
A+
A-
2 1