FP-CTR-502 and cFP-CTR-502 4 ni.com
Use a 5–30 VDC external power supply for the input channels.
Thepower supply must provide enough current to power all of the
input channels and all of the field devices on the output channels.
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
orless.
Install a 2 A maximum, fast-acting fuse between the external
power supply and the V or VSUP terminal on each channel. Install
a 1A maximum, fast-acting fuse suitable for the load at the VOUT
terminal. The detailed wiring diagrams in this document show
fuses where appropriate.
Table1 lists the terminal assignments for the signals of each
channel. Terminal assignments are also listed on the side panel of
the cFP-CTR-502 and under the slide-in card on the front of the
FP-CTR-502.
Table 1. Terminal Assignments
Channel Name
Termi na l Nu mb ers
VIN or VOUT1VSUP2COM
Count Inputs
Count Input 0 117 18
Count Input 1 217 18
Count Input 2 319 20
Count Input 3 419 20
Count Input 4 521 22
Count Input 5 621 22
Count Input 6 723 24
Count Input 7 823 24
Gate Inputs
Gate 0 925 26
Gate 1 10 25 26
Gate 2 11 27 28
Gate 3 12 27 28