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Positive and Negative Terminals of an NI Motion Controller’s Step and Direction Outputs

Hardware: Motion Control>>Controllers>>PCI-7330, Motion Control>>Controllers>>PCI-7340, Motion Control>>Controllers>>PCI-7350

Problem:
The Step and Direction inputs on my drive require Step +, Step -, Dir +, and Dir – signals. What are the corresponding outputs on my National Instruments 73xx motion controller?

Solution:
Connect the 73xx’s Step output to the drive’s Step + input.
Connect the 73xx’s Digital Ground output to the drive’s Step – input.
Connect the 73xx’s Dir output to the drive’s Dir + input.
Connect the 73xx’s Digital Ground output to the drive’s Dir – input.

The ground references of each motion controller’s input and output signals are listed in the Motion I/O Signal Connections table in each motion controller’s user manual.

Related Links:
Product Reference: National Instruments 7330 User Manual
Product Reference: National Instruments 7340 User Manual
Product Reference: National Instruments 7350 User Manual

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Report Date: 03/17/2006
Last Updated: 03/17/2006
Document ID: 3VGD8IS4

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