Chapter 3
Connecting the UMI-7774/7772 to Drives and Other Devices
National Instruments UMI-7774/7772 User Manual
3-24
ni.com
Shutdown
The Shutdown signal is passed through to the motion controller and is
typically used to disable the controller. Refer to Figure 3-17 for the pin
locations of the Global Stop connector and to Table 3-6 for the
corresponding signals for each pin. Refer to Figure 3-1 to locate the Global
Stop connector on the UMI-7774/7772.
Both the Shutdown and Inhibit All inputs are sinking inputs on the
UMI-7774/7772 and are optically isolated. The Shutdown interface circuit
is shown in Figure 3-16. The interface circuit is the same for the Inhibit All
input. You can wire the Shutdown and Inhibit All inputs to a sourcing
output device, such as a PNP sensor, as shown in Figure 3-16. You can use
the isolated power (V
iso
) and isolated common (C
iso
) signals on the control
connector to power the sensor.
Refer to the
Voltage Considerations for the UMI-7774/7772
section for
voltage information that applies to the global stop wiring.
Analog Input
The UMI-7774/7772 has a single 9-pin D-SUB connector that provides
access to the four analog input channels on the motion controller. The
analog inputs are pass-through signals on the UMI-7774/7772. Refer to
Figure 3-1 to help you locate the analog input connector on the
Table 3-6.
Global Stop Connector Pin Assignment
Pin
Signal
Optically Isolated
1
Shutdown
Yes
2
Inhibit All
Yes
3
NC
No
4
NC
No
5
Iso Power (Output)
Yes
6
Iso Common
Yes
7
Iso Common
Yes
8
Iso Common
Yes
9
Iso Common
Yes
