Parker AC30 series User Manual

Parameter Reference C-21
AC30 series Variable Speed Drive
For best results is is better to carry out the autotune at the maximum speed that is likely to be required. If you run the autotune at a particular speed,
the motor characteristics will be measured up to this speed, and estimated above this speed. If you later discover that you need to run the motor
faster than this, you can do this up to twice the speed at which the autotune is carried out, but the values will not be so accurate, and the control may
not be as good in this region. It is better to run another autotune at the higher speed. If you wish to run the motor at more than twice the speed at
which the autotune was carried out, this will not be allowed. If in doubt, the autotune speed is recorded in the parameter Max Spd When Autotuned,
described below.
Parameter Name
No.
Path
Default
Range
Units
Writable
Autotune Enable
0255
Setup::Motor Control::Autotune
Parameters::Motor Control::Autotune
FALSE
STOPPED
Puts the autotune feature into a state where it will carry out the autotune when the drive is started.
Autotune Mode
0256
Same as PNO 255
1 0:STATIONARY
1:ROTATING
STOPPED
Selects whether the autotune is carried out on a rotating motor, or whether it just calculates from nameplate data (not the preferred
method). It may be necessary to carry out a stationary autotune if the motor is not free to rotate, for example if it is already connected
to a machine. Leakage inductance (to tune the current loop) and stator resistance may be measured when the motor is stationary, but
other parameters can only be inferred from nameplate data. Use the rotating autotune where possible.
Nameplate Mag Current
1550
Setup::Motor Control::Autotune
Parameters::Motor Control::Autotune
0.88
0.01 to 1000.00 A
STOPPED
This parameter will only become visible if Autotune Mode = STATIONARY is selected.
If you select stationary autotune, you must enter the motor magnetising current into this parameter before proceeding with the
stationary autotune. If this is not known, it can be approximated from the motor rated current and the power factor, as motor current
times √(1 – PF^2).
The value of mag current entered here will be copied into the magnetising current parameter in the Induction Motor Data menu. If a
rotating autotune is run at a later date, it will be replaced with the more accurate value, and this parameter will be irrelevant.
Autotune Test Disable
0257
Same as PNO 255
0000
0:Stator Resistance
1:Leakage
Inductance
2:
Magnetising Current
3:Rotor Time Constant
4
:Encoder Direction
STOPPED
This is only valid for induction motor autotune
Allows selected tests to be disabled (default all tests are carried out).
Each test can be individually disabled by setting to TRUE.

Parker AC30 series Specifications

General

Control Modes	Closed-loop vector
Feedback	Encoder
Operating Temperature	0 to 40°C (32 to 104°F) standard, -20 to 50°C (-4 to 122°F) with derating
Protection	Overcurrent, Overvoltage, Undervoltage
Communication	RS485