Festo Кабели и принадлежности - Manual (Page 311)

7. Description of the commands
7−45
Festo P.BE−SPC200−EN en 0901d
G25 Position−dependent switch to next record G25
ć permitted in operating modes: Start/Stop
Example See below (examples 1...6)
Remark This command enables:
Ĉ the speed and acceleration in the current positioning procedure to be switched
in the case of pneumatic drives
Ĉ obstructions to be bypassed time−optimized in the case of multi−axis systems.
If a stop is triggered when the preselect value is exceeded and a switch is made to
the next record, the target position will be retained.
If a stop is triggered before the preselect value is reached, the position of the presĆ
elect value will also be retained.
In the case of M10 with mode 0 or 1, G25 has no effect. In this case switching to the
next record remains active until the next positioning command.
Speed/acceleration switching (only with pneumatic
drives)
Transition to a new nominal speed takes place with the curĆ
rently set values for approach acceleration or braking. AutoĆ
matic limiting to realistic acceleration values is not underĆ
taken.
Caution
Unrealistically high nominal acceleration values can lead
to heavy overswing and therefore to damage to the axis.
When using command G25, make sure that realistic nomĆ
inal acceleration values are set with regard to the axis
used as well as to the remaining path to be traversed.
If the remaining positioning path is not sufficient for coming
to a stand within the set delay, a stop will be triggered autoĆ
matically (fault no. nnn03x06). In this case shift the switching
condition forward or set a steeper braking ramp.
With G02 positioning commands, an automatic stop can also
be triggered if the condition for further switching lies in the
range of the delay phase. In this case, use positioning comĆ
mand G01.