Installation GT3000
IMGT30017EN 107
Unsymmetrical Grounded Networks (defined in the following table)
In such networks, the RFI filter internal connection must be disconnected.
If the grounding configuration of the network is unknown, remove RFI filter internal connection.
Unsymmetrical Grounded Networks – RFI filter must be disconnected
Ground at the mid point of a
leg
Ground at the corner of the
delta
Three phase “Variac” without
solidly grounded neutral
Single phase grounded at an
end point
A2.3 GT3000 COMPLIANCE WITH IEC 61800-3
The GT3000, with EMC filter, is a product of C3 and C4 categories and so complies with the limit values of the EN61800-3 for the second
environment.
The GT3000, with optional class B EMC filter and motor cable length less than 25m, can be considered a product of C2 category and so complies with
the reduced limit values for the first environment.
Warning: “This is a product of category C2 according to IEC 61800-3. In a domestic environment this product may cause radio interference in
which case supplementary mitigation measures may be required.”
The drive must be installed according to the instructions given in this Manual.
To reduce emissions GT3000 are equipped with EMC filter (installed inside or outside the chassis).
Optional filters for use in the first environment are available on request.
Note: a) The drive must not be equipped with the EMC filter when installed to IT (unearthed) systems. The mains becomes connected to
earth potential through the EMC filter capacitors. In IT systems this may cause danger or damage the unit.
b) Refer to Figure A2 10 for filter connection to the drive. RFI filter codes are in Table A2.6.3
WARNING! The drive may cause radio interference if used in a residential or domestic environment.
The user is required to take measures to prevent interference, in addition to the requirements for CE compliance listed above, if
necessary.
NOTE
If the above listed provisions cannot be met, e.g., the drive cannot be equipped with EMC filter when installed to an IT (unearthed) network, the
requirements of the EMC Directive can be met as follows for restricted distribution:
1. It is ensured that no excessive emission is propagated to neighbouring low-voltage networks. In some cases, the natural suppression in
transformers and cables is sufficient. If in doubt, a supply transformer with static screening between the primary and secondary windings can be
used.
2. An EMC plan for preventing disturbances is drawn up for the installation.
3. The motor and control cables are selected as specified in the Hardware Manual.
4. The drive is installed according to the instructions given in the Hardware Manual.
Equipment
Equipment
(victim)
Drive
Equipment
Supply transformer
Nei
hbourin
Networ
Low volta
e
Static screen
Medium volta
e Networ
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