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Figure 3 shows a simplified connection diagram.
SHC68-C68-S
Cable
NI 73xx Motion Controller
Note
Refer to the Getting Started with NI 7340/7350 Motion Controllers and AKD Servo Drives or
the Getting Started with NI 7330/7340/7350 Motion Controllers and P7000 Series Stepper Drives
for connection diagrams specific to those devices.
Noise Considerations
Before connecting the UMI-7774/72, verify that all system components are grounded correctly and that all
wiring is properly shielded. Do not connect high-voltage wires and low-level signals to the same channel.
The following list includes additional noise considerations.
Caution
Failure to follow these precautions may result in system instability and may cause
permanent damage to system components.
•
Keep high voltage lines, such as AC power cables and motor drive cables, away from low-level
signals, such as encoders and limits.
•
Use twisted pair cable for differential signals, such as encoders.
•
Ensure that all cables connected to the UMI-7774/72 include a braided shield.
•
Use hoods with internal metallic shielding for D-SUB connectors.
•
Ensure that all devices in the system, including the UMI-7774/72, drives, and motors, are properly
grounded.
•
Ensure that all power supplies and motor drives in the system are powered down when connecting
them to the UMI-7774/72.
Mounting the UMI-7774/72
You can mount the UMI-7774/72 on a 35 mm DIN rail, on a panel, or in a standard 19 in. rack. The
following sections include instructions for all three mounting methods. Before using any of these
mounting methods, record the serial number from the back of the UMI-7774/72. You will be unable to
read the serial number after you have mounted the UMI-7774/72.
Caution
When you mount the UMI-7774/72 and connect cables to it, allow 51–76 mm (2–3 in.) of
space between each side of the device and any other surface to ensure appropriate air circulation.
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(Optional) 5 - 30 V
Power Supply for
Isolation
UMI-7772/74
+24 V Power Supply
(NI PS-15 Shown)
Figure 3. UMI-7774/72 Connection Diagram
9
Per-Axis UMI to
Drive Connections
Stepper or
Servo Drive
Additional I/O
(Such As Limits, DIO,
Trigger Inputs,
Breakpoint Outputs)
NI UMI-7774/72 User Guide and Specifications
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