National Instruments FieldPoint cFP-DO-400, Руководство по эксплуатации

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FP-DO-400 and cFP-DO-400 4 ni.com
Use a 5–30 VDC external power supply for the output channels.
The power supply must provide enough current to power all of the
loads on the output channels, up to 1.5 A per channel.
1
Connect the
external power supply to multiple V and V
SUP
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 2 A maximum, fast-acting fuse between the external
power supply and the V
SUP
terminal on each channel. Install
a 1.5 A maximum, fast-acting fuse suitable for the load at the
V
OUT
terminal. Figure 3 shows fuses where appropriate.
Figure 3. Recommended Field Connections
Table 1 lists the terminal assignments for the signals of each
channel. Terminal assignments are also listed on the side panel of
the cFP-DO-400 and under the slide-in card on the front of the
FP-DO-400.
1
Refer to the Digital Output Circuit and Specifications sections for the maximum
output current level on all channels.
COM
V
OUT
V
SUP
V
C
[c]FP-DO-400
Load
–
+
5–30 VDC
External Power
Supply
To next channel
2 A max
1.5 A max