Hitachi SJ Series User Manual page 167

Chapter 12
▼
Offline auto-tuning
1
Check the control type [AA121].
For the induction motor (IM), make sure that the
control type [AA121] is set to the one for IM. For
the synchronous motor (SM) or permanent
magnetic motor (PMM), make sure that the
control type [AA121] is set to the one for PMM.
2
Set the auto-tuning selection [HA-01].
In the auto-tuning selection [HA-01], 01:
Non-revolving or 02: Revolving is set. The tuning
does not begin at this stage. Only "non-revolving"
can be chosen for synchronous motor (SM) /
permanent magnetic motor (PMM).
3
Set a start command for tuning.
Pressing OPERATION button on the operator
keypad starts the tuning, Pressing STOP button
terminates the tuning, However tuning data are
not saved.
4
The inverter automatically operates.
Output of a preset pattern is given to the motor. If
the auto-tuning selection [HA-01] is set to 01:
Non-revolving, non-revolving output of three
different patterns is given.
If the auto-tuning selection [HA-01] is set to 02:
Revolving, acceleration and deceleration are
repeated twice in addition to the above output.
The frequency increases up to 80% of the base
frequency.
After the above operation finishes, the output
with no revolution is checked as final check.
5
The tuning finished.
When the tuning End display appears, the tuning
finishes. Use STOP key to cancel the End
display.
▼
Online auto-tuning
1
Perform the offline auto-tuning.
The online auto-tuning works with the
designated motor constants and the offline
auto-tuning described on the left is performed.
2
The online tuning selection [HA-03] is set.
Set the online tuning selection [HA-03] to 01:
Enabled.
3
Check the online auto-tuning.
The online tuning operates for up to 5 s when
every operation stops. Use the online tuning after
making sure that the operation and stop can be
made correctly by your operation command.
！
• In case of termination due to trip or erroneous
tuning, correct data cannot be acquired. See the
next section.
• The result of the online tuning is automatically
reflected in up to 5 s after the stop. It is not
reflected if the operation is restarted during the
tuning.
• The online tuning is not performed if the servo-on
function [SON] or forcing function [FOC] is
working.
• In the factory setting, the offline auto-tuning can be
started by the operation key on the operator
keypad. It can be changed to a designated
operation command by changing the operation
command [HA-02] of the auto-tuning.
12-3-8
Inverter Functions