Parameter Reference D-7
AC30V series Variable Speed Drive
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.
PNO Parameter Descriptions
0255 Autotune Enable
Puts the autotune feature into a state where it will carry out the autotune when the drive is started.
0256 Autotune Mode
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.
Enumerated Value : Mode
0 : STATIONARY
1550 Nameplate Mag Current
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.
0257 Autotune Test Disable
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.
Bitfield Value : Test
00 : STATOR RES
01 : LEAKAGE IND
02: MAG CURRENT
03: ROTOR TIME CONST
04: ENCODER DIRECTION
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