National Instruments FP-Al-110 用户手册

© National Instruments Corp.

(10 lb

⋅ in.) of torque. The nylon coating on the screws prevents 

them from loosening.

Figure 2.  Installing the cFP-AI-110

The FP-TB-x terminal base has connections for each of the eight 
input channels and for an external power supply to power field 
devices. The cFP-CB-x connector block provides the same 
connections. Each channel has separate input terminals for voltage 
(V

IN

) and current (I

IN

) input. Voltage and current inputs are 

referenced to the COM terminals, which are internally connected 
to each other and to the C terminals. All eight V

SUP

 terminals are 

internally connected to each other and to the V terminals.

You can use a 10–30 VDC external supply to power field devices. 
Connect the external power supply to multiple V and V

SUP

 

terminals so that the maximum current through any V terminal 

1

cFP-DI-300

2

Captive  Screws

3

cFP Controller Module

4

Screw Holes

5

cFP  Backplane

2

2

1

3

5

4

4