Protecting The Digital Outputs From Flyback Voltages - National Instruments NI 9375 Getting Started Manual

Protecting the Digital Outputs from Flyback
Voltages
If the channel is switching an inductive or energy-storing device
such as a solenoid, motor, or relay, and the device does not have
flyback protection, install an external flyback diode.
NI 9375
14 | ni.com | NI 9375 Getting Started Guide
hnology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www
Visit ni.com/info
CSeriesDOPulseGen
Figure 3. Connecting a Flyback Diode
V
sup
DO
DO COM
and enter the Info Code
for more information.
Flyback
Inductive
Diode
Device
External
+
Power
–
Supply