Rockwell Automation SA500 Drive Configuration and Programming - Manual (Page 53)

Configuring the UDC Module’s Registers 3-21
I/O Control Register (Continued) 101/1101
Calculate Iz Value Bit 10
The Calculate Iz Value bit is set to start the
procedure to tune the value of
STATOR_IZ_E2%.
Appendix E describes how to perform this
procedure.
Hex Value: 0400H
Sug. Var. Name: TUNE_IZ@
Access: Read/Write
UDC Error Code: N/A
LED:
N/A
Note that bit 0 of register 101/1101 must be in a reset condition to perform this
procedure.
UDC Loopback Test Bit 15
The UDC Loopback Test bit is set to enable
the external loopback test on the UDC
module's fiber-optic ports. Hex Value: 8000H
Sug. Var. Name: UDC_LB@
Access: Read/Write
UDC Error Code: N/A
LED:
N/A
Register 101, bit 15, controls the COMM A test while register 1101, bit 15, controls
the COMM B test. Note that this bit must be reset to 0 before the loopback
connector is removed from the UDC module's fiber-optic ports. Refer to the
Fiber-Optic Cabling instruction manual (S-3009) for specific instructions on
performing the loopback test.
PMI Torque Reference Register 102/1102
The value in the PMI Torque Reference register is the reference sent
to the PMI for use in the torque loop. This value corresponds to the
torque produced by the configured maximum motor current (rated
motor current
∗
motor overload ratio).
Sug. Var. Name: TRQ_REF%
Units: Counts
Range: +4095 to -4095
Access: Read/Write
The value in this register is limited to not exceed +/- 4095. See register 203/1203, bit 4, for additional
information.
Speed Reference Into Ramp Register 105/1105
The value in the Speed Reference Into Ramp register is the
reference sent to the PMI for use in 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_STPT%
Units: Counts
Range: +4095 to -4095
Access: Read/Write