Universal Motion Interfaces
NI UMI-7764, NI UMI-7774, NI UMI-7772
• 4 and 2-axis universal motion
wiring interfaces with single cable
connection from motion controller
• Per-axis motion signal breakout
• Screw terminal connectors for
encoder, limit, motion I/O, and
motor driver signals
• Host bus +5 VDC monitor with
built-in driver inhibit control
• Connectivity for third-party drive
and motion components
• Encoder rates of 20 MHz
NI UMI-7774, NI UMI-7772
• Tailored for industrial applications
• Per-axis D-Sub connectivity
• Isolated signals
• 4 and 2-axis versions
• 24 V I/O
Overview and Applications
For connectivity to third-party power drives, use a National
Instruments UMI interface. These products provide a comprehensive
wiring and connection point for motion control and feedback
signals. A single cable from the motion controller to the UMI carries
input and output signals for all axes. By dividing these signals into
per-axis and function-specific connections, the UMI interface
simplifies integration of third-party drivers, amplifiers, encoders,
limits, and I/O with NI controllers. Each UMI works with up to
20 MHz quadrature encoder rates.
Each UMI incorporates a host PC power monitor that inhibits the
motion driver if the host PC loses power during motion control. The
UMI monitors the +5 VDC from the PC and activates the inhibit
signals if the voltage falls out of tolerance.
Features
Enhanced motion-specific features set the UMI apart from simple
connector-only screw terminal blocks. Compatibility with both TTL
and differential encoders, input filtering, host-PC power monitoring,
onboard inhibit functionality, and compact size make the UMI the
ideal motion interface solution. The result is simplified wiring to
third-party amplifier/driver and motor components. Refer to
ni.com/motion
for integrated amplifier, power supply, and
connectivity solutions.
Some signals have compatibility defined as signal pass-through,
which means the UMI may have passive filtering on these signals but
voltage range or current handling capabilities are not affected.
Consult your motion controller specifications to determine the
allowable voltage range and logic level compatibility of the signal.
PC
Servo and Stepper
Control Boards
UMI
Application
Software
Third-Party
Drive Unit
Motor
A
B
Motion I/O
Limit Switches
Encoders
Figure 1. Typical Motion System Components
NI [ NATIONAL INSTRUMENTS CORPORATION ]
