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NI 9512 Operating Instructions and Specifications
Limit and Digital Input Signals
You can configure the Forward Limit, Reverse Limit, Home, and
Digital Input <1..4> circuits in software for current sinking or
sourcing output devices and set the active state of the inputs in
software to on or off. To use the Drive Fault functionality
referenced in Figure 1, you can map an available digital input in
software. Figure 9 shows an example of wiring the inputs to a
sourcing output device.
Figure 9.
Limit or Digital Input Circuit Configured for Sinking
PNP (
S
o
u
rcing)
O
u
tp
u
t Device
COM
NI 9512
V–
V+
O
u
t
Limit, Home,
or Digit
a
l Inp
u
t
(Reference)
Limit, Home,
or Digit
a
l Inp
u
t
C
u
rrent
Limiting
Circ
u
it
