ARTDrive V2 series - Instruction Manual Chapter 4 Wiring Procedure • 57
4.5.2 Parallel Connection on the AC (Input) and DC (Intermediate Circuit)
Side of Several Inverters
Features and Limits:
1 The inverters used have to be all the same size.
2 AC input chokes (see chapter 5.7.1) have to be the same (provided by the
same supplier).
3 The mains power supply has to be simultaneous for all inverters, i.e. a
single switch /line contactor has to be used.
4 Such connection is suitable for a maximum of 6 inverters.
5 If necessary dissipate braking energy; a single internal braking unit (with
external resistor) has to be used or one (or several) external braking unit
("BU32-.., BUy-...") configured with the inverter or a BU as master (all the
other connected BUs are configured as slaves).
6 Fast fuses (F12...F62) have to be fitted on the dc-link side ( C and D terminals)
of each inverters (see chapter 4.6.2).
Figure 4.5.2.1: Parallel Connection on the AC and DC Side of Several Inverters
M1
3
M2
3
M6
3
F11 L1
F21 L2
F61 L6
U
V
W
U2
V2
W2
C
D
INVERTER 1
U
V
W
U2
V2
W2
C
D
INVERTER 2
BR
F12
F22
F62
U
V
W
U2
V2
W2
C
D
INVERTER 6
MCMD0V24
BR
CR
C
D
BU-32-...
(B y-...)U
(SLAVE)
78910
R
BR
F7
R
BR
L1
L2
L3
K1
M..
3
F.. L..
U
V
W
U2
V2
W2
C
D
INVERTER ..
F..
(*)
(*) Do not connect if
external braking unit
are used.
Attention
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