■
Motor connection diagram (with H366)
With H366, the output busbars of the inverter modules
within the same cubicle
are connected by bridging busbars. The bridging balances the motor current between the
modules, which allows more cabling options. For example, it is possible to use a number
of cables that could not otherwise be evenly distributed between the inverter modules.
PE
U2
V2
W2
U2
V2
W2
M
3~
U1
W1
V1
PE
Bridging busbars
Inverter unit cubicle(s)
The recommended cable types are given in chapter
Technical data
.
WARNING!
The bridging can carry the nominal output of one inverter module. In case of three
parallel modules, ensure that the load capacity of the bridging is not exceeded.
For example, if the cabling connects to the output busbars at one module only,
use the module in the middle.
Note:
The +H366 option only interconnects the outputs of inverter modules within the same
cubicle, not modules installed in different cubicles. Therefore, when the drive has more than
three inverter modules, make sure that the load is distributed evenly between the modules:
• In case of two inverter cubicles of two modules, connect the same number of cables to
each cubicle.
• In case of one inverter cubicle with three modules and another with two, each cubicle
requires a number of cables proportional to the number of modules within. For example,
connect three out of five (or six out of ten, etc.) cables to the cubicle with three modules,
the remaining two out of five (four out of ten) cables to the cubicle with two modules.
■
Procedure
Refer to the drawings below.
WARNING!
Obey the instructions in
Safety instructions for ACS880 liquid-cooled multidrive
cabinets and modules
(3AXD50000048633 [English]). If you ignore them, injury
or death, or damage to the equipment can occur.
36 Electrical installation
Summary of Contents for ACS880-107LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 107LC inverter units Hardware manual ...
Page 2: ......
Page 4: ......
Page 10: ...10 ...
Page 38: ...4 a 8 b 16 18 PE PE 10 38 Electrical installation ...
Page 39: ...13 12 21 Electrical installation 39 11 ...
Page 44: ...With FDPI 02 modules OPEN TERMINATED 1 1 2 2 OPEN TERMINATED 3 44 Electrical installation ...
Page 48: ...48 ...
Page 54: ...54 ...
Page 72: ...72 ...
Page 108: ...108 ...
Page 115: ...Above Sides Front in mm in mm in mm 9 85 250 0 0 59 1500 Technical data 115 ...
Page 124: ...124 ...
Page 130: ...Inverter module cubicle with two R8i modules bottom cable exit 130 Dimensions ...
Page 131: ...Inverter module cubicle with three R8i modules bottom cable exit Dimensions 131 ...
Page 133: ...Cubicle width 300 mm top cable exit Dimensions 133 ...
Page 134: ...Cubicle width 400 mm bottom cable exit 134 Dimensions ...
Page 135: ...Cubicle width 400 mm top cable exit Dimensions 135 ...
Page 136: ...Cubicle width 600 mm bottom cable exit 136 Dimensions ...
Page 137: ...Cubicle width 600 mm top cable exit Dimensions 137 ...
Page 138: ...138 ...