ABB ACA 6 Series, Hardware Manual

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Chapter 3 – Electrical Installation
ACA 6xx Sections and ACS/ACC 6x7 (132 to 3000 kW) Frequency Converters 3-15
2 x R11i/R12i without
Common Motor
Connection Terminal
Motor cable connections with parallel symmetrical cables for two phase
module blocks with a common motor are represented below.
Note: With two parallel phase module blocks, the number of cables
must be n x 2, where n = 1, 2, 3... With four parallel blocks the number
of cables must be n x 4, where n = 1, 2, 3... Otherwise the output
cabling must be done from a separate output cubicle.
1 2 3 1 2 3 1 2 3
U2
V2 W2
1 2 3 1 2 3 1 2 3
M
3
~
PE
OUTPUT
Phase Module Block
U2 V2 W2
PE
OUTPUT
Phase Module Block
1 2 3 1 2 3 1 2 3
1 2 3 1 2 3 1 2 3
V1
W1
U1
Inverter
Motor with single connection (or with two
separate windings which are connected
together in the terminal box)
Motor with dual connections (two separate
windings)
Example: connection with six cables
(three parallel connected phase
conductors)