What Can I Use as a Replacement for My At6200 or At6400 Indexer?

The attachment outlines the options for replacing/upgrading the old AT6200 or AT6400 stepper controllers.

NOTE: The AppNote references both the 6k and ACR9000 as potential product replacements. While both of those potential replacements are fully obsolete, the ACR7000C can be utilized instead wherever the article discusses the ACR9000; the verbiage can be directly attributed to the ACR7000C. Some discrepencies exist, such as:

ACR7000C does not need 120Vac control power, but instead uses 24Vdc Ctrl Power
ACR7000C does not offer serial communication options
ACR7000C offers a 4 or 8 axis variants
etc

glh Feb 2013