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GraviMaster 2704
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Weight-per-meter control via the extruder
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Start-up of the extruder and haul-off is done independently in set mode.
The weight-per-meter control can be switched on if the line has been adjusted
and the working points coordinated with each other.
Run-up to production speed is supported by a ramp function that drives the
extruder proportionally in a synchronous mode.
Control of the weight-per-meter functions independently of the working point
and adaptively. |
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Weight-per-meter control via the haul-off
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The extruder is driven independently and mostly with a constant speed. In
this operating mode the heat regulation of the extruder should not be
changed.
Deviations of the weight-per-meter are balanced out by the line speed. The
adaptive control gently corrects deviations in an optimal time.
A selectable alarm strategy provides for a reliable control mode and for manual
operation fulfilling the application requirements. |
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