Festo Кабели и принадлежности - Manual (Page 176)

4. Commissioning
4−32
Festo P.BE−SPC200−EN en 0901d
Step 3: Carry out identification travel
Please note
If system identification is not carried out, the positioning
behaviour will probably be bad. In the case of modificaĆ
tions to the axis data and the mounting position, as well
as modifications to the supply pressure of more than
1Ăbar, the data ascertained during system identification
will be deleted. In these cases, therefore, new identificaĆ
tion travel is necessary.
During identification travel the characteristic system values
are ascertained and saved. Before identification travel can be
carried out, the positioning system must be ready for operĆ
ation.
A distinction is made between two types of system identificaĆ
tion.
Types Description
Static identification With the static identification, variables are ascertained which have an
effect on the behaviour of the system at the beginning and end of the
movement. This includes static friction of the drive and the valve characteĆ
ristics in the range of the mid−position (valve hysteresis).
Dynamic identification
Ĉ with workpiece
Ĉ without workpiece With the dynamic identification, the maximum attainable speed as well as
the acceleration ability and delay ability of the drive system are ascertaiĆ
ned. This identification must be carried out in the case of axes which
should move at maximum speed (NC command G00). If considerable modiĆ
fications to the mass occur during operation, identification should be
carried out both with and without the workpiece.