Rockwell Automation 8510 AC Spindle Drive System User Manual - Manual (Page 11)

Introduction
Chapter 1
1-7
I/O Options The 8510 AC Drive I/O can be configured in several ways as explained
below.
Standard I/O - Drive Model 8510A-Axx-Ax
This is the standard drive I/O and includes the functionality required for
normal spindle operations on conventional machine tools.
Drive Model 8510A-Axx-Bx
In this version, the standard I/O is expanded to include the 16 bit parallel
digital input that can be used for either a digital spindle speed command or
an external spindle orient position command. The inputs can be configured
as either a 16 bit binary or a 4 digit BCD command.
Drive Model 8510A-Axx-Cx
To the standard I/O, this version adds the high speed, high linearity 14 bit
A/D converter for use in continuous path contouring applications. This I/O
option should be used when the 8510 will be used for C-axis, solid tapping,
and large servo axis applications or will operate in Torque Mode.
Drive Model 8510A-Axx-Dx
This version combines the features of both Option B and Option C. It
would be used for lathe applications requiring C-axis operation and
multi-position orient or indexing with external position commands.