80 Mentor MP Short Form Guide
www.controltechniques.com Issue Number: 5
Set
acceleration /
deceleration
rates
Enter:
• Acceleration rate in Pr 2.11 (SE03, 0.24) (time to accelerate to
maximum speed)
• Deceleration rate in Pr 2.21 (SE04, 0.25) (time to decelerate from
maximum speed)
Enable the
field controller
Field controller set-up
• Select field mode by setting Pr 5.78 = IntrnL (Internal field controller
is used), Etrnl (External half control), E FULL (External in full
control).
•Set Pr 5.77 (SE12, 0.33) = On to enable the field.
Static autotune
Mentor MP is able to perform either a static, rotating or continuous
autotune. The motor must be at a standstill before an autotune is
enabled.
Static autotune for current loop gains
When this operation is performed the drive will perform an estimation of
Motor constant (Pr 5.15), Continuous proportional gain (Pr 4.13),
Continuous integral gain (Pr 4.14), Discontinuous integral gain (Pr 4.34),
Back EMF set point (Pr 5.59), Armature resistance (Pr 5.61) and Flux
loop I gain (Pr 5.72) with respect to the selected motor map and store the
values.
To perform a static autotune:
•Set Pr 5.12 (SE13, 0.34)= 1
• 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
• Remove the enable signal when the autotune has finished
• Remove the run signal
Checking
speed
feedback
• Close the enable signal. Close the run signal (terminal 26 or 27).
Provide speed reference to run the drive up to a low speed, the drive
will regulate its own estimated speed.
• Check that the feedback device is functioning correctly:
For encoder speed feedback - Check encoder speed feedback
Pr 3.27 (Fb09, 0.79).
For tachometer speed feedback - Check tachometer speed
feedback Pr 3.52 (Fb04, 0.74
).
• When the feedback device being used is seen to be functioning
correctly, stop the drive and select the correct feedback device using
Pr 3.26 (Fb01, Pr 0.71)
For improved estimated speed accuracy and torque control in the field
weakening range a rotating autotune is recommended to determine the
motor flux characteristics Pr 5.12 (SE13, 0.34) = 2
Action Detail
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