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Multiple DC bus fuses If the total maximum continuous current on the DC bus of all drives
connected via the common DC bus exceeds the maximum fuse rating
of a drive, DC bus fuses are required at each drive.
L2L1L3 L2L1L3 L2L1L3
L3
L2
L1
L2 L1L3
PC/- PA/+ PC/- PA/+ PC/- PA/+
PC/- PA/+
Figure 8: Supply via the DC bus by a drive
L2L1L3 L2L1L3 L2L1L3
~
+-
PC/- PA/+ PC/- PA/+ PC/- PA/+
L3
L2
L1
Figure 9: Supply via the DC bus by a DC power supply unit
LXM32
3 Engineering
Common DC bus
31
MNA01M001EN, V1.01, 08.2014