Lenze 8615E - Manual (Page 36)

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5.3 Operation with DC bus supply
5.3.1 Connection of several drives for energy-sharing
Drives which are supplied by a three-phase voltage can also be
linked via the terminals +UG and -UG for energy-sharing. This type
of connection requires all controllers to be supplied simultaneously
with the same mains voltage, with each controller being connected
to the recommended mains choke.
L1/2/3 +UG-UG
8600
*
L1/2/3 +UG-UG
8600
*
L1/2/3 +UG-UG
8600
*
further
contr.
* The fuses must be dimensioned for the rated output current of the device and a
voltage strength of 1000 V DC.
5.3.2 DC voltage supply
With direct supply into the DC bus, energy feedback is also
possible. If the drive is in the generator mode (braking), the
absorbed energy will be passed to the DC source. A brake chopper
is then often not necessary.
Motor
(DC contactor)
470...740V DC ±0 %
*
PE
+
-
PE L1 L2 L3 U V W BR1 BR2 -U
G
+U
G
further
drives
* The fuses must be dimensioned for the rated output current of the device
and a voltage strength of 1000 V DC.