15
Common DC configuration
Power ratings for DC connection
The power unit diagram with related power ratings is shown in the following figure.
~
~
~
~
U2
W2
V2
U2
W2
V2
UDC+ UDC-
Frames A, B, C and D
Frames E0, E and G
UDC+ UDC-
U1
V1
W1
U1
V1
W1
P
rec
ave
Average rectifier power P
rec,ave
P
rec,ave
is the maximum average DC power that the input bridge of a drive can supply.
The actual average DC power taken from the input bridge should be lower than this
value in any 3 minutes time window.
Peak rectifier power P
rec,max
P
rec,max
is the maximum short time DC power capacity of a drive. This is the maximum
DC power level for the input bridge and the DC connection terminals during 1 s.
Common DC configurations
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