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CHAPTER 4 - Start-up and adjustment of the drive
Once the required value has been reached, press ENTER again to confirm: the cursor
disappears and the arrow keys UP and DOWN go back to their previous function.
As you can see, every reference can have a different resolution from the others, therefore it
is not possible to set all the values between minimum and maximum. Moreover, please
consider that there are some maximum values, which depend on the operating conditions (for
example W_ref cannot exceed W_MAX previously fixed).
The second window shown is for parameters. The default start is from parameter P1, KP:
The value for each parameter is indicated (sometimes with a measuring unit) with a short
description (on the second line). To see the parameters one by one use the arrow keys UP
and DOWN.
To modify them apply the same procedure used for the first window: press the ENTER key to
reveal the cursor and the arrow keys to modify the value : use ENTER again to confirm; press
the CLR key to set the minimum value for that parameter.
The resolution with which a parameter can vary depends on the parameter itself, together
with its resolution in terms of figures (with or without decimal point).
The only parameter that cannot be modified is parameter P28, ALARM, that shows the kind
of alarm occurred.
With MODE key it is possible to move from the second to the third window, containing flags:
Again, together with a short description of the kind of flag, the words SET or CLEAR will
appear on the second line (except for flag F9, Thermal probe, where PTC or NTC are
visualized) whether it is set or not.
Flags can be grouped in two different types: procedure flags and configuration flags. The
former are used to generate a particular sequence of actions that will then bring the drive
back to start condition (usually these are autoadjusting or autotuning procedures). In general,
they are CLEAR-type flags. lf first ENTER (the cursor appears) and then the arrow key UP
are pressed, the word on the second line changes from CLEAR to SET and at the same time
the automatic procedure defined by that flag starts. At the end of the procedure the word
DONE will appear for some seconds, indicating that it has been concluded, and then the
word CLEAR appears again.
For example, for the flag F1, Auto Phasing, when changing from CLEAR to SET, the
sequence for the autophasing of resolver starts; when it is finished, the word DONE appears
and after a few seconds the word CLEAR appears again, showing that the autophasing has
been concluded and that the drive has returned to its previous condition (consider that any
kind of procedure can modify some parameters during its course).
The latter type of flags are for drive configuration. They are used to set the drive for some
particular operating conditions, as for example ramp enabling, etc.
To choose a specific configuration select the flag that should be set (use arrows), press
ENTER key (the cursor will appear) and then press the UP key; the word changes from SET
to CLEAR or vice versa and the cursor disappears; from this moment onwards the
configuration changes according to the flag condition (SET=enabled, CLEAR=disabled).
Remember that both procedures and configurations are usually mutually exclusive. As
regards procedures, it is necessary to start them one by one, making sure that they have
MANIU04.9607 GB 03/97
Page 4.2
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