Rockwell Automation SA500 Drive Configuration and Programming - Manual (Page 54)

3-22 SA500 Drive Configuration and Programming
Position Reference Register 106/1106
The value in the Position Reference register is the PMI setpoint in
reference to position feedback. This value must not change by more
than 32767 counts per PMI scan, where 4095 equals one mechanical
revolution of the resolver. Sug. Var. Name: POS_STPT%
Units: Counts
Range: +32767 to -32768
Access: Read/Write
Note that +32767 to -32768 is a single count change.
Speed Reference No Ramp Register 107/1107
The value in the Speed Reference No Ramp register is the reference
sent to the PMI for use in the speed loop. It is not used by the speed
loop’s ramp block. This value corresponds to the motor’s
gear-in-speed. The value is limited to not exceed +/-4095. Sug. Var. Name: SPD_REF%
Units: Counts
Range: +4095 to -4095
Access: Read/Write
Position Feedback From UDC Register 108/1108
The value in the Position Feedback From UDC register is used by the
PMI position loop when External Variable is selected for Position
Feedback on the parameter entry screen. Sug. Var. Name: EXT_POS_FB%
Units: Counts
Range: +4095 to -4095
Access: Read/Write
The change in this value is used to decrement the position error counter. This value must be scaled so that
4095 equals one mechanical revolution of the resolver.
External Reference Flux Weakening Register 109/1109
The External Reference Flux Weakening register is used for speed
feedback when a user-installed device, such as a pulse tachometer,
is used in place of the resolver. Sug. Var. Name: EXT_CP_REF%
Units: RPM
Range: Application
Access: Read/Write