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NI 9476 Operating Instructions and Specifications
10
ni.com
Protecting the Module from Flyback Voltages
If the mod
u
le is switching an ind
u
ctive or energy-storing device
s
u
ch as a solenoid, motor, or relay, and the device does not have
flyback protection, install an external flyback diode as shown in
Fig
u
re 4.
Figure 4.
Connecting a Flyback Diode to the NI 9476
External
Power
Supply
NI 9476
+
_
COM
V
sup
Inductive
Device
DO
Flyback
Diode