Lenze EVS9332xP Manual de usuario descargar pdf (Pagina 72)

Function library

Positioning control

3.4.7 Travel range limits

3−44

EDSVS9332P−EXT DE 2.0

3.4.7 Travel range limits

You can prevent the mechanical stops of the limited travel range from being touched by

l the travel range limit switches (hardware),

l the position limiting values (software).

9300POS025

S1S2 S3

Home position

Limit position

negative

C1224 C1223

End of travel switch

positive direction

POS-LIM-NEG

POS-LIM-POS

POS-REF-MARK

End of travel switch

negative direction

Limit position

positive

Fig. 3−15 Example of travel range limits

3.4.7.1 End of travel range limit switch

l The travel range limit switches are connected via the digital input terminals X5/E1 and X5/E2.

l In the default setting, X5/E1 and X5/E2 are configured for the function block inputs

POS−LIM−POS and POS−LIM−NEG and are LOW active (protected against open circuit).

l A travel range limit switch indicates the fault P01 or P02 under the following circumstances:

– In program operation if the speed setpoint (POS−NOUT) is unequal 0.

– In manual operation if the drive moves outside the traversing range.

– During homing, if the drive does not reverse when reaching the limit switch.

l In the event of a failure the drive brakes to standstill using the function FAIL−QSP" (default

setting); the ramp time QSP−Tif" can be adjusted under C0105.

Tip!

The travel range limit switches should be mounted in positions that provide enough braking distance

for the drive in the event of a failure.

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Lenze EVS9332xP Manual de usuario Pagina 72