Parker AC30V Série Manuel Technique page 234

D-8
Parameter Reference
PNO Parameter Descriptions
1388
ATN PMAC Test Disable
This is only valid for Permanent magnet motor control
Allows selected tests to be disabled (default all tests are carried out).
Each test can be individually disabled by setting to TRUE.
Bitfield Value : Test
0274
Autotune Ramp Time
Sets the ramp up time to motor base speed during autotune.
1405
ATN PMAC Ls Test Freq
This is only valid for Permanent magnet motor control
Set up the test frequency for the leakage inductance autotune of the permanent magnet motor control
1459 Max Spd when Autotuned
This parameter records the value of the "100% speed in rpm" parameter at the time the autotune was carried out.
"100% speed in rpm" determines the max speed at which the motor can be commanded to run. When the autotune is carried out, it
can only measure the motor characteristics up to this speed. Beyond this speed, the motor characteristics are filled in according to the
best possible estimate, but are not necessarily accurate.
If at a later date the "100% speed in rpm" parameter is increased, then that will allow the motor to run in the region where the motor
characteristics have been estimated, not measured. The further into this region the motor is allowed to run, the less accurate will be
the motor characteristics and hence the control.
The user is allowed to increase "100% speed in rpm" up to 2 times the value stored in "Max Spd when Autotuned". Beyond this it is
considered that the resulting control inaccuracy may be unacceptable. In this case, an error will be generated. If the user wishes to
run the motor more than 2 times the value at which it was autotuned, then he must carry out a new autotune at the higher speed.
Functional Description
IMPORTANT
You MUST carry out an Autotune if you intend to use the drive in vector control mode. If you are using it in
Volts/Hz control an Autotune is not necessary.
Autotune can only be initiated from the "stopped" condition. When the test is complete, the stack is disabled and Autotune Enable is set to
FALSE.
Note
Refer to the Chapter 9: Setup Wizard for details on how to perform an Autotune.
Standard Autotune
If an induction motor is fitted, the autotune will identify parameters as follows.
00 : STATOR RES
01: LEAKAGE IND
02: KE CONSTANT
AC30V series Variable Speed Drive