Area Title Functions
5 DC-link busbars Used to connect the DC-links of the drive modules in parallel.
The DC-link busbars are part of the busbar kit, which can be ordered from Danfoss as an
option. The kit also includes the required busbar to tie together the 2 sets of DC-link busbars.
The installer, however, may choose to fabricate the busbars locally, or use cables in place of
busbars.
6 Brake resistor terminals Terminals used to connect an external brake resistor to the drive module.
7 Motor output busbars The output terminals of the individual drive modules are connected to the motor output
busbars with the use of exible busbars. By doing so, the output busbars join the output
terminals of the individual drive modules in parallel, and provide a connection to the motor
cables to supply controlled AC voltage output to the motor.
The motor output busbars are part of the busbar kit, which can be ordered from Danfoss as an
option. However, the installer may choose to fabricate the busbars locally, or use cables in place
of busbars.
8 Motor output Controlled AC output to the motor. In a system using 4 drive modules, the installer must install
an equal number of motor wires to both sets of motor output busbars.
Illustration 3.2 Drive System Block Diagram
Product Overview
VLT
®
Parallel Drive Modules
10 Danfoss A/S © 08/2017 All rights reserved. MG37L202
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