Rockwell Automation 8510 AC Spindle Drive System User Manual - Manual (Page 116)

Troubleshooting
Chapter 11
11-112
Circuit Board Descriptions The functionality associated with each circuit board in the 8510 AC
Spindle Drive is described below. Refer to Figure 11.1 for board locations.
I/O Board
Includes all analog and discrete digital user interface functions along with
the integral drive programming system. The EEPROM for user
programmed parameter storage is located on this board.
Main Control Board
Used on 8510A-A11-x2 and 8510A-A22-x2 drives only. This board
contains all of the basic drive control circuitry including the digital control
system for position, velocity and commutation control, motor current
loops, IGBT gate drive circuits with fuses, logic power supplies with fuse,
resolver feedback interface, spindle position feedback interface, dual
winding motor contactor control interface, and fault diagnostics system.
CPU Board
Used on 8510A-A04-x1 and 8510A-A06-x1 drives only. This board
contains the digital control system for position, velocity and commutation
control, motor current loops, spindle position feedback interface, and fault
diagnostics system.
Gate Drive Board
Used on 8510A-A04-x1 and 8510A-A06-x1 drives only. This board
contains the IGBT gate drive circuits with fuses, logic power supplies with
fuse, resolver feedback interface and dual winding motor contactor control
interface.
Power Board
Interconnects all items in the power structure to minimize power wiring.
The board includes the snubber networks, power filtering, control relays,
and AC control fuses.
The following assemblies are mentioned in the sections that follow.
Locations are not shown in Figure 11.1, but will be described in text as
appropriate.
Interconnect Boards
These are three small circuit boards used to interconnect signals from the
Power Board to the Main Control or Gate Drive Board.
Power Unit
The Power Unit is the complete drive structure less the I/O and Main
Control Board or CPU and Gate Drive Boards.