Lenze DSD User Manual Page 363

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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 363
12 Components in the DC bus
12.2 9400 power supply module
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
12.2.2 Utilisation
The simulation of device-internal monitoring functions serves for the evaluation of the power de-
mand by DSD and the determination of the utilisation of the power supply module.
[12-1] Power supply module 9400 diagram: utilisation
Description
P
sum
(t) Total power in the DC bus over time
P
imp,sum
(t) Pulse power in motor mode in the DC bus
• Relevant for the short-time thermal utilisation of the power supply module
P
av,sum
(t) Average power in the DC bus
P
rated
Permissible DC continuous power in supply mode
P
max
Max. permissible power in regenerative feedback mode
P
mot,max
Demand of the max. DC bus power in motor mode
Axes coordinated Movement of drive axes
• Axes can be coordinated or uncoordinated
A
th,Sup
Thermal utilisation of the power supply module
A(P
imp,DC
) Short-time thermal utilisation of the power supply module
A
Sup
(P
max
) Utilisation of the power supply module, relative to the max. power in the DC bus
I
ave,req,AC
Average AC power demand of the device (for cable dimensioning)
I
ave,DC
Average DC power demand of the device (for cable dimensioning)
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