© National Instruments Corporation 5-1 NI 7350 User Manual
5
Signal Connections
This chapter describes how to make input and output signal connections
directly to the National Instruments PXI/PCI-7350 controller and briefly
describes the associated I/O circuitry.
The NI 7350 controller has the following four connectors that handle all
signals to and from the external motion system.
• Two 68-pin motion I/O connectors
• Two 68-pin digital I/O connectors
You can connect to the motion system with cables and accessories, varying
from simple screw terminal blocks to enhanced UMI units and drives.
Caution The NI 7350 does not provide isolation between circuits.
Caution Power off all devices when connecting or disconnecting the NI 7350controller
motion I/O and auxiliary digital I/O cables. Failure to do so may damage the controller.

Motion I/O Connectors

The motion I/O connectors contain all the signals required to control up to
eight axes of servo and stepper motion, including the following features:
• Motor command analog and stepper outputs
• Encoder feedback inputs
• Forward, home, and reverse limit inputs
• Breakpoint (position compare) outputs
• Trigger (position capture) inputs
• Inhibit outputs
• Controller shutdown input
The motion I/O connectors also contain up to eight channels of 16-bit A/D
inputs for analog feedback or general-purpose analog input.