ABB ACQ580-07, Руководство по оборудованию

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Guidelines for installing the drive to a TT system
The drive can be connected to a TT system under these conditions:
1. Residual current device has been installed in the supply system.
2. This wire has been disconnected. Otherwise EMC filter and ground-to-phase varistor
capacitor leakage current will cause the residual current device to trip.
Ground-to-phase varistor screws EMC filter screws Frame
size
VAR Two EMC screws R6...R9
VAR - R10,
R11
Drive
N
L3
L2
L1
Note:
• Because the varistor wire has been disconnected, ABB does not guarantee the EMC
category.
• ABB does not guarantee the functioning of the ground leakage detector built inside
the drive.
• In large systems the residual current device can trip without a real reason.
Identifying the grounding system of the electrical power
network
WARNING!
Only a qualified electrical professional may do the work instructed in this section.
Depending on the installation site, the work may even be categorized as live
working. Continue only if you are an electrical professional certified for the work.
Obey the local regulations. If you ignore them, injury or death can occur.
To identify the grounding system, examine the supply transformer connection. See the
applicable electrical diagrams of the building. If that is not possible, measure these
Disconnecting EMC filter and ground-to-phase varistor 315