Festo Контроллер позиционирования CPX-CMAX - Manual (Page 382)

B. Basic controlling principles
B−40
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
The maximum force applied to the piston is referred to as
nominal force F
N
, and it is calculated as follows:
F
N
[N] = A
N
* p
operation
The maximum forces applied to the drive for both direcĆ
tions of movement are calculated as follows: With non−
horizontal mounting position (
α š 0 for linear drives, refer
to Fig. B/2) they are dependent on direction and mass:
F
max+
[N] = + 0.9 * A
N
* p
operation
ć m
current
* g * sin α
F
maxć
[N] = ć 0.9 * (A
N
ć A
KS
) * p
operation
ć m
current
* g *
sin α
This contains the following user data:
p
operation
= supply pressure
A
N
= nominal piston surface
(e.g. DNCI−25−...: A
N
= ģ / 4 * 0.025 2 )
A
KS
= piston rod surface
m
current
= m
current tool mass
+ m
current workpiece mass
α
= mounting position
The values for F
max+
and F
maxć
are calculated in the conĆ
troller. The controller limits the user data to these limit
values and reports a fault if necessary.
Parameter Unit FCT default Minimum Maximum
Force tolerance N 10 1 1.000
Force ramp N/s 1.000 10 10.000
Speed limit value mm/s 200 10 1) 500
Stroke limit value mm 50 1 1) 10.000
1) The speed and stroke limit values can be deactivated for every force record, so entering 0 is not
permissible.