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NI 9476E Operating Instructions and Specifications
Protecting the Module from Flyback Voltages
If the module 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 as shown in
Figure 5.
Figure 5.
Connecting a Flyback Diode to the NI 9476
Extern
a
l
Power
Su
pply
NI 9476
+
_
COM
V
su
p
Ind
u
ctive
Device
DO
Fly
ba
ck
Diode