FP-AIO-600 and cFP-AIO-600 4 ni.com
Wiring the [c]FP-AIO-600
The FP-TB-xterminal base has connections for each FP-AIO-600
input and output channel, and for an external power supply to
power the current output channels and field devices. The cFP-CB-x
connector block provides the same connections for the
cFP-AIO-600. Each input channel has one input terminal for
voltage, VIN, and one input terminal for current, IIN . Only one of
these input terminals should be connected on each channel. Each
output channel has one output terminal for current, IOUT. All
four input channels and all four output channels are referenced to
the COM terminals. The V and VSUP terminals are all internally
connected, as are the C and COM terminals.
Use a 10–30 VDC external power supply that provides at least
125 mA for the output channels. The power supply must provide
more current if you use it to power transducers or field devices.
Connect the external power supply to multiple V and VSUP
terminals and to multiple C and COM terminals as needed to
ensure that the maximum current through any terminal is 2 A
or less.
Install a 125 mA minimum, 2 A maximum, fast-acting fuse at
each connected V and VSUP terminal. Select a fuse value suitable
for the device connected to each channel to protect the module
and connected devices. Install a 63 mA, fast-acting fuse at each
connected IIN terminal. The detailed wiring diagrams in this
document show fuses where appropriate.
Figure 3. Basic Field Connection
–
10–30 VDC
External
Power Supply
V
COM
C
I
IN
V
IN
I
OUT
V
SUP
COM
Input
Circuitry
+
105 Ω
2 A max
V
SUP
Sourcing
Output
Circuitry
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