User Manual

7. Description of the commands
7−76
Festo P.BE−S PC200−EN en 0901d
M37
Set mass assessment
pneumatic axis; permitted in operating mode: Start/Stop
Nn M37 X<Mass> [Y.., Z.., U..]
<Mass> n
Mass assessment of the load in % of the configured work
item mass or of the configured mass moment of inertia of the
work item;
0 = 100 %, 1 = 1 %.....99 = 99 %
n = 0 ... 99
@n
Absolute value of the work item mass in [kg] or of the mass
moment of iner tia in [kgcm
2
], saved in register @n
1)
Permitted value range: 0.0 ... max. work item mass
n = 0 ... 99
Effect Sets the controller to the specified mass load (see chapter 3.2.9).
The following applies with relative assessment of the work item mass:
Mass load = work item mass * n [%] + total moveable mass without work item
The following applies with absolute specification of the work item mass:
Mass load
= @n + total moveable mass without work item
Example
N001 M37 X50
N002 M37 X@88
;50 % of the configured work item mass considered
;work item mass from register @88 considered
Remark The work item mass is a parameter of the application data.
This command has a saving effect and supports the procedure with different
work item masses.
With rotary drives the mass moment of inertia of the work item and the other
moving parts apply here.
Recommendation: Carry out dynamic identification travel with minimum
and
maximum masses if you wish to use this NC command optimally.
1)
This syntax is only available as from operating system version 4.82. It is not supported by the
control panel.
Please note
If the work item mass in its basic status does not corre
spond to the max. work item mass, you must make sure
that before a positioning command the mass load is
adapted to the actual work item mass. Remember the sav
ing effect of the command and that after every
Power−On,
Data, System or Program Reset the basic status is acti
vated again.