Decentralised supply (several supply terminals)
Decentralised supply with three-phase mains connection
12
Network of several drives
12.7
12.7.2
L
12.7-2
EDS82EV903-1.0-11/2002
12.7.2 Decentralised supply with three-phase mains connection
K 1
K 1
L 3
N
P E
L 1
L 2
U
V
W
M
3 ~
P E
L 1 L 2 L 3
F 1
P E
+ U G
- U G
P E
R B
J
+ U G
- U G
P E
R B 2
R B 1
Z 1
X 1
8 2 5 X / 9 3 5 X
R B
K 1
F 4
O N
O F F
2 8
x x
K 1
C I N H
P E
F 2 F 3
Z 4
U
V
W
M
3 ~
P E
L 1 L 2
L 3
P E
+ U G
- U G
P E
Z 1
X 2
2 8
K 1
C I N H
P E
S 1
S 2
S 1
S 2
F 5
x x
A 1 A 2
Z 3
Fig. 12.7-2 Network of three-phase connected controllers with decentralised supply and
additional braking unit
A1, A2 230 V controller 8200 vector or 400 V controller 8200 vector, 8220 or
9300
Z1 Mains filters/mains chokes (¶ 12.5-2)
Z3 Brake unit
Z4 Brake resistor
F1, F2, F3 Mains fuses (¶ 12.4-6)
F4, F5 DC fuses (¶ 12.4-6)
K1 Mains contactor
(
((
( Stop!
825X and 935X brake units must only be operated together with
Lenze brake resistors! Otherwise the brake units can be
damaged!
)
))
) Note!
With 400 V mains systems it is also possible to use a regenerative
power supply unit 934X instead of a brake unit. Advantage: No
heat generation in generator mode.
Block diagram
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