Overview: Connections; Connecting The Power Cables - baltur ACS 355 Guía De Iniciación

FREQUENCY CONVERTER

Overview: Connections

The diagram gives an overview of connections. I/O connections are parameterable.
The diagram shows the default I/O connections for the ABB standard macro. See chapter Application macros for I/O connec-
tions for the different macros and chapter Electrical installation for installation in general.

Connecting the power cables

Procedure
The figure shows frame sizes R0...R2. In R3, the input power, brake resistor
and motor connections are located to the left of the terminal cover (I/O con-
nections).
1. On IT (ungrounded) systems and corner grounded TN systems, disconnect
the internal EMC filter by removing the screw at EMC and varistors by removing
the screw at VAR. For 3-phase U-type drives (with type code ACS350-03U-), the
EMC screw is already removed at the factory and replaced by a plastic one.
WARNING!
If a drive whose EMC filter or varistors are not disconnected is installed on an IT
system [an ungrounded power system or a high resistance-grounded (over 30
ohms) power system], the system will be connected to earth potential through
the EMC filter capacitors or varistors of the drive. This may cause danger or
damage the drive. If a drive whose EMC filter or varistors are not disconnected
is installed on a corner grounded TN system, the drive will be damaged.
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