Protecting The Digital Outputs From Flyback Voltages; Connecting To A Spring-Terminal Connector - National Instruments NI-9375 Getting Started

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.
Figure 2. Connecting a Flyback Diode

Connecting to a Spring-Terminal Connector

What to Use
NI 9375 spring-terminal connector
■
2
0.08 mm to 1.0 mm
■
(0.28 in.) of insulation stripped from the end
Flathead screwdriver with a 2.3 mm x 1.0 mm (0.09 in. x 0.04 in.) blade,
■
included with the NI 9375
What to Do
Complete the following steps to connect wires to the spring-terminal connector.
V
sup
DO
Flyback
Diode
DO COM
NI 9375
2
(28 AWG to 18 AWG) copper conductor wire with 7 mm
1
External
+
Power
–
Supply
Inductive
Device
2 3
NI-9375 Getting Started
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