Chapter 3
Signal Connections
©
National Instruments Corporation
3-15
NI 951x User Manual
Digital I/O Signals
Digital Inputs
The NI 951x drive interface modules have the following digital input
signals:
•
Digital Input <0..1>
—The NI 951x drive interface modules include
two 5 kHz digital inputs compatible with 0 to 30 V logic outputs.
•
Digital Input <2..3>
—The NI 9512 drive interface module includes
two additional 5 kHz digital inputs compatible with 0 to 30 V logic
outputs.
Note
To use the Drive Fault functionality referenced in the
NI 951x Connections
section
of Chapter 2, you must map an available digital input in software. Refer to the
NI SoftMotion LabVIEW Help
for more information about mapping digital inputs and
digital outputs to available mappable signals.
You can configure the digital inputs for current sinking or sourcing output
devices and set the active state of the inputs in software to on or off. Digital
inputs are digitally filtered and have programmable filter frequencies.
Refer to the
NI SoftMotion Module
book of the
LabVIEW Help
for more
information about digital input configuration options.
Tip
Refer to the
Signal Connection Recommendations
section of Chapter 4,
Accessory
and Cable Connections
, for additional wiring and cabling recommendations.