Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 248)

Section 5A
9/440 Resolver--based CNC/Drive System
5A-2
System Module -- This is the largest module in the 9/440
Resolver--based CNC/Drive system (leftmost module). It contains the
following circuit boards:
9/440 Resolver--based CNC Assembly Section
- Processor Board -- This board provides the CNC logic as well as
connections to the 9/Series Fiber optic I/O ring, serial ports A and B,
E--Stop connection, and video connection.
- Feedback Board -- The 1326 motors’resolver is wired to this board
which also provides power for resolver excitation. Additional
encoder feedback ports are also available for spindle feedback,
optional feedback, or analog axis feedback.
Power Assembly
- Power Supply -- This supplies power to the system module as well as
the axis modules. Attach incoming AC three-phase power and 24 V
logic power to this supply.
Interconnecting Power and 9/440 Resolver--based CNC Assembly
Section
- Wiring Board -- spindle outputs, touch probe connections, and RIO
connection are located on this board which also interfaces the 9/440
Resolver--based CNC assembly with the power portion of the 9/440.
There are three versions of the 9/440 resolver--based system module
available. This manual assumes you are using the 4--axis 9/440
resolver--based version. The number of axes supported and the feedback
available for these systems is as follows: