Lenze E94A - Manual (Page 167)

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
167
5 Function blocks
5.6 L_CamProfiler - curve interpolation for motion profiles
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
5.6.2 Track switch-over
A switch-over to another motion profile can be effected during operation.
• In the Lenze setting the acceptance of the new cam data is carried out in the next zero crossing
of the x axis.
• Alternatively, the immediate acceptance of the new cam data can be selected in C05505.
5.6.3 Feedforward control
Via the output dnYAccOut_x the FB provides an acceleration feedforward value, if an acceleration
curve for the motion profile selected is stored in the cam data, and corresponding mass information
is stored in the machine parameters for the y axis.
• Optionally a dynamisation time can be set in C05506, by which the x position for the calculation
of the acceleration signal is trimmed.
• Additionally a user-definable position offset can be specified via the input dnXOffsetPrectrl_p,
which also displaces the acceleration track.
• Via the feedforward gain that can be set in C05507, additionally a systematic adjustment of the
feedforward control can be carried out.
5.6.4 Output of the machine parameters
Via the outputs XAxisData and YAxisData the machine parameters of the x and y axis are provided
for the optional further use in other FBs.
• For purposes of information, the designation of the x axis is displayed in C05500/4 and the de-
signation of the y axis is shown in C05501/4.

Tip!
In more complex interconnections, for purposes of clarity, it is recommended to read out
the machine parameters specifically via an instance of the L_CamGetAxisData FB instead
of using the outputs XAxisData and YAxisData.