====== Cycle time calculation ======

-> [[..:grafische_darstellung_der_ergebnisse:zykluszeit|For the graphical representation of the cycle time]]

The determination of the cycle time calculation is part of the [[..:eingabe_der_verfahrensparameter:eingabe_der_verfahrensparameter|process parameters]].

{{ :eingabe_der_verfahrensparameter:psi160_verf_en_001.png?nolink |}}

Via the drop-down selection, four different options for determining the cycle time are provided.

In general, the following applies:

$$t_{cycle}=t_{plasticizing}+t_{downtime}$$

The downtime therefore also includes, among others, the injection time and the holding pressure time. Thus, the following condition must hold:

$$t_{downtime} \geq t_{injection} + t_{holding}$$

==== Screw speed is calculated, times are specified ====
In this mode, the three fields must be defined:
  * Cycle time
  * Plasticizing time
  * Downtime

Any two values can be entered; the third is calculated automatically.
From the [[..:eingabe_der_verfahrensparameter:eingabe_der_verfahrensparameter|shot volume]] (mandatory input) and the plasticizing time, the mass throughput is determined. The screw speed required to achieve this throughput is then calculated by PSI.

==== Screw speed is calculated, throughput is specified ==== 
In this mode, the two fields must be defined:
  * Downtime
  * Throughput

From the throughput and the [[..:eingabe_der_verfahrensparameter:eingabe_der_verfahrensparameter|shot volume]] (mandatory input), the plasticizing time is derived, and therefore also the cycle time. The screw speed required to achieve the specified mass throughput is calculated by PSI.

==== Screw speed and cycle time are specified ==== 
In this mode, the two fields must be defined:
  * Screw speed
  * Cycle time

Based on the screw speed, the mass throughput is calculated (this can also be entered directly as an option). From the mass throughput and the [[..:eingabe_der_verfahrensparameter:eingabe_der_verfahrensparameter|shot volume]] (mandatory input), the plasticizing time is determined, and thus the downtime is also known.

==== Screw speed and downtime are specified ==== 
In this mode, the two fields must be defined:
  * Screw speed
  * Downtime

Based on the screw speed, the mass throughput is calculated (this can also be entered directly as an option). From the mass throughput and the 
[[..:eingabe_der_verfahrensparameter:eingabe_der_verfahrensparameter|shot volume]] (mandatory input), the plasticizing time is determined, and thus the cycle time is also known.