Lenze E82xVxxxKxxxxx - Manual (Page 478)

DC−bus operation
Central supply (one supply point)
Central supply via external DC source
12
l
478 EDS82EV903−3.0
12.7 Central supply (one supply point)
One central feeding point is used to supply the DC−bus system of the controllers via +U
G
,
−U
G
.
DC−bus system Possible supply sources
230 V controller A DC source
400 V controller l A DC source
l A regenerative power supply module
l A controller with reserve power
12.7.1 Central supply via external DC source
Basic circuit diagram
A1
U V W
-UG +UG
A2
U V W
-UG +UG
F5
+
-
F5
PE
F4 F4
+
L2 L1 L3 L2 L1 L3
+
8200vec654
Fig. 12−3 Network of 230 V controllers with central supply via external DC source
A1, A2 230 V controller of the 8200 vector series
F4, F5 Fuses on DC level ( ¶ 470)
(
Stop!
Please observe for trouble−free DC−bus operation:
ƒ General measures (
¶ 460)
ƒ For 400 V controller: The voltage curve +U
G
® PE / −U
G
® PE must be
symmetrical. Controllers are destroyed if +U
G
or −U
G
are earthed.