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Appendix – Auto Tune Procedure
− Armature Inductance
IMPORTANT: Brake must be set while auto
tune is running for valid data.
Appendix
Auto Tune Procedure
The following details the procedure on how to
run auto tune on a Quattro DC drive. The
purpose of auto tune allows the drive to
calculate the following motor parameters:
− Armature Resistance
− Field Resistance
− Field Time Constant
− Armature Resistance Voltage Drop at
Motor Rated Current
− Armature Regulation Gains
− Field Regulation Gains
To run Auto tune by use of the operator, use
the AUTO TUNE MOTOR in the A4 menu. The
Operator will display:
Press the “enter” key. If there are any active
faults on the drive, “Not Available at This Time”
will display and Auto Tune will not run:
If there are no faults present, the drive will
display:
Press “enter” to start. Operator will display:
The run light will turn on while current is
flowing into the motor. After Auto tune is
finished, the operator will display:
RUN/FAULT
SUB MENU
DATA ENT
PRESS ENTER TO
CONFIRM REQUEST
RUN/FAULT
SUB MENU
DATA ENT
IT IS TUNING
PUSH ANY KEY
RUN/FAULT
SUB MENU
DATA ENT
AUTO TUNE FINISH
PUSH ANY KEY
RUN/FAULT
SUB MENU
DATA ENT
AUTO TUNE MOTOR
A
4 START TUNE ?
Quattro DC will not use the values measured
or calculated by auto tune unless GAIN
SELECTION (A4) is set to Auto tune.
RUN/FAULT
SUB MENU
DATA ENT
Not Available at
This Time
There are two parameters located in A4 that
set the bandwidth for the Armature Regulation
gain and the Field Regulation gain. GAIN
BANDWIDTH A (A4) determines the
bandwidth used in the calculation of the
Armature Regulation Gains. Similarly, GAIN
BANDWIDTH F (A4) determines the bandwidth
used in the calculation of the Field Regulation
Gains.
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