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Festo Контроллер позиционирования CPX-CMAX User Manual

Page 394

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B. Basic controlling principles

B−52

Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH

Notes:

ć

The starting position is always the actual position on the
starting edge, so the stroke limit value also comprises the
stroke during the speed control of a force task.

ć

If the task is started by record sequencing, the starting
position is the actual position at the time of reversing.

ć

If the stroke limit value is outside of the software end
position, reaching the software end position has priority.
The stroke limit value does not deactivate the software
end position.

ć

If CDIR.XLIM or RCB1.XLIM is set, stroke monitoring is
deactivated.

Speed monitoring

Velocity monitoring is activated each time a force task is
started, provided it has not been disabled by the user. It is
also active after MC, i.e. delayed limit value violations are
recognised.

The maximum permissible velocity V

lim

(PNU 514) must

always be greater than the setpoint velocity V

vor

(PNU 406 or 554).v

If, during activated force control, the velocity limit V

lim

is exĆ

ceeded, the axis is stopped and error message E39 is issued.
SDIR.VLIM or RSB1.VLIM is set.

Monitoring can be deactivated by setting CDIR.VLIM or
RCB1.VLIM.