42 Unidrive M700/M701 / Unidrive HS70/HS71 Control Getting Started Guide
Issue Number: 2
Set accel /
decel rates
• Acceleration rate in Pr 00.003 (s/1000 rpm)
• Deceleration rate in Pr 00.004 (s/1000 rpm) (If braking resistor
installed, set Pr 00.015 = Fast. Also ensure Pr 10.030, Pr 10.031 and
Pr 10.061 are set correctly, otherwise premature ‘Brake R Too Hot’
trips may be seen).
Autotune
The drive is able to perform either a stationary or a rotating autotune. The
motor must be at a standstill before an autotune is enabled. A stationary
autotune will give moderate performance whereas a rotating autotune will
give improved performance as it measures the actual values of the motor
parameters required by the drive. The drive is able to perform a
stationary, rotating, mechanical load measurement or locked rotor test
autotune. The motor must be at a standstill before an autotune is
enabled. It is suggested that a rotating autotune is used for accurate
measurement for position feedback phase angle.
Autotune
(cont)
To perform an autotune:
•Set Pr 00.040 = 1 for a stationary autotune, Pr 00.040 = 2 for a
rotating autotune.
• Close the run signal (terminal 26 or 27).
• Close the drive enable signal (terminal 31). The lower display will
flash 'Autotune' while the drive is performing the test.
• Wait for the drive to display 'Ready' or 'Inhibit' and for the motor to
come to a standstill.
If the drive trips it cannot be reset until the drive enable signal (terminal
31) has been removed.
• Remove the drive enabled and run signal from the drive.
Save
parameters
Select 'Save Parameters' in Pr mm.000 (alternatively enter a value of
1000 in Pr mm.000) and press red reset button or toggle the
reset digital input.
Run Drive is now ready to run
Action Detail
The rotating autotune will rotate the motor by up to 2
mechanical revolutions in the direction selected, regardless of
the reference provided. After a short delay, the motor is further
rotated through a electrical revolution. 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.
Unidrive M700_M701 Getting Started Guide English iss7.book Page 42 Friday, December 12, 2014 1:14 PM
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