Emerson Unidrive M701 - Parameter Management; Ethernet Internal Menus Overview

38 Unidrive M700/M701 / Unidrive HS70/HS71 Control Getting Started Guide
Issue Number: 2
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.
To perform an autotune:
•Set Pr 00.040 = 1 for a stationary autotune or set Pr 00.040 = 2 for a
rotating autotune
• Close the drive enable signal (terminal 31). The drive will display
’Ready’.
• Close the run signal (terminal 26 or 27). The lower display will flash
‘Autotune’ while the drive is performing the autotune.
• Wait for the drive to display ’Ready’ or ‘Inhibit’ and for the motor to
come to a standstill
• Remove the drive enable 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
A rotating autotune will cause the motor to accelerate up to
2
/
3
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.
WARNING
cos ∅
σ L
S
T
Nm
N rpm
saturation
break-
points
R
S
L
S
Unidrive M700_M701 Getting Started Guide English iss7.book Page 38 Friday, December 12, 2014 1:14 PM