National Instruments UMI-7664 User Manual And Specifications page 20

Fault +
NPN
(Sinking)
Output Device
V+
Fault –
Out
V–
Figure 16. Example of Wiring a Sinking Output Device to the Fault Input
You can also use a manual operator switch to handle disabling an axis. Refer to Figure 17 and Figure 18
for examples of wiring the fault input signal to high-side and low-side switches.
High-Side
Switch
Fault +
Fault –
Ciso
Figure 17. Example of Wiring a High-Side Switch to the Fault Input
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Viso
Current Limiter
Ciso
UMI-7774/72
Viso
Current Limiter
UMI-7774/72
19
Vcc
Vcc
NI UMI-7774/72 User Guide and Specifications