Mentor MP Short Form Guide 81
Issue Number: 5 www.controltechniques.com
Safety Information Product information
Mechanical
installation
Electrical
installation
Getting started
Running the
motor
SMARTCARD
operation
Advanced
parameters
Diagnostics UL listing
Rotating
autotune
Mentor MP is able to perform either a static, rotating or continuous
autotune. The motor must be at a standstill and unloaded before a
rotating autotune is enabled.
A rotating autotune cannot be carried out in Estimated speed mode.
Rotating autotune for motor field flux set-up
When selected the drive will determine the Rated field compensation
factor (Pr 5.74) for rated flux and the motor field winding saturation break-
points (Pr 5.29 and Pr 5.30), by spinning the motor at 25% of its Base
speed Pr 5.08 (SE08, 0.29) with respect to the selected motor map and
store the values.
To perform an autotune:
•Set Pr 5.12 (SE13, 0.34) = 2 for a rotating autotune
• Close the Drive Enable signal (terminal 31). The drive will display
‘rdY’
• Close the run signal (terminal 26 or 27). The lower display will flash
‘Auto’ and ‘tunE’ alternatively, while the drive is performing the
autotune
• Wait for the drive to display ‘inh’ and for the motor to come to a
standstill
If the drive trips, see Chapter 9 Diagnostics on page 122.
• Remove the drive enable and run signal from the drive.
Save
parameters
Select SAVE in Pr xx.00 (SE00, 0.21)
Press the red reset button or toggle the reset digital input (ensure
Pr xx.00 (SE00, 0.21) returns to ‘no Act’).
Run
Drive is now ready to run
• Close enable signal
• Close run signal
• Provide speed reference
Action Detail
A rotating autotune will cause the motor to accelerate up to
1
/
4
base speed in the direction selected regardless of the
reference provided. Once complete the motor will coast to a
stop. The enable signal must be removed before the drive
can be made to run at the required reference.
The drive can be stopped at any time by removing the run
signal or removing the drive enable.
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