F 6221 (0625)
313
2.1.5 Variant B: Mono supply, mono current measuring, wiring via terminal
Figure 4: Mono supply, mono current measuring, wiring via terminal
• Mono operation with transmitter supply for channels 1 to 8
• Cable type: Z 7063/6221/ExCn/I part number 93 6221 105
Z 7025/3325/ExCn part number 93 3325 101
Note Instead of the F 3325 module, a galvanically isolated power supply
can be used in this wiring variant. It has to be considered that a fault
current runs through the monitoring inputs (TC1 to TC8, Re = 30 k
Ω)
which affects the non-intrinsically safe side of the galvanically isolated
power supply and must be compensated. The Hart protocol can also
be transmitted if suitable transmitters are used.
93 6221 105
Z 7063/6221/ExCn/I
d18
50
Ω
TC1+
TC8+
I1+
I8+
I-
I f(A)
Terminal
Cable plug
transm. supply module
Not safety-related EEX transmitter supply module
Safety-related EEX measuring module
Cable plug
measuring module
Physical
variable