Rockwell-automation GMLC Reference Manual Manual do Utilizador descarregar pdf (Página 295)

Publication GMLC-5.2 - November 1999

258 Motion Blocks

To allow rejecting spurious registration events, specify a tolerance around

the target position by selecting Tolerance, and enter a value or expression

equal to the desired target position tolerance in the data entry box. The

specified tolerance is interpreted as a ± quantity around the Absolute

Target Position and used to distinguish good registration events from bad

ones, as shown below.

As shown above, the first registration event that occurs within the

specified tolerance is considered the good registration. All registration

events that occur after a good registration event and before the beginning

of the next tolerance area are considered bad, even if they occur within

the current tolerance. If Tolerance is not selected, all registration events

on the registering axis are considered good.

Using auto-correction to correct large

errors can cause harsh motion and result in damage to

both equipment and materials.

Axis Position

Registration

Registrations

Registration

Registrations

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Rockwell-automation GMLC Reference Manual Manual do Utilizador Página 295