Digitax HD M75X Series Installation and Technical Guide
69
Issue Number: 5
4.10.6 Compliance with EN 61800-3:2004+A1:2012 (standard for Power Drive Systems)
Meeting the requirements of this standard depends on the environment that the drive is intended to operate in, as follows:
Operation in the first environment
Observe the guidelines given in
Section 4.10.7 Compliance with generic emission standards
. An external EMC filter will always be required.
Operation in the second environment
In all cases a shielded motor cable must be used, and an EMC filter is required for all drives with a rated input current of less than 100 A.
The drive contains an in-built filter for basic emission control. In some cases feeding the motor cables (U, V and W) once through a ferrite ring can
maintain compliance for longer cable lengths.
Depending on the level of compliance required, motor cable length and inverter switching frequency, an external EMC filter may or may not be
needed; refer to section 6.1.26
Electromagnetic compatibility (EMC)
on page 110 for more information.
For longer motor cables, an external filter is required. Where a filter is required, follow the guidelines in section 4.10.7
Where a filter is not required, follow the guidelines given in
section 4.10.4 General requirements for EMC Ground (earth) connections
EMC (Electromagnetic compatibility) on page 61
for further information on compliance with EMC standards and definitions of
environments.
Detailed instructions and EMC information are given in the
Digitax HD M75X
EMC Data Sheet
which is available from the supplier of the drive.
4.10.7 Compliance with generic emission standards
Use the recommended filter and shielded motor cable. Observe the layout rules given in Figure 4-18 and Figure 4-19. Ensure the AC supply and
ground cables are at least 100 mm from the power module and motor cable.
Figure 4-18 Supply and ground cable clearance
This is a product of the restricted distribution class according to IEC 61800-3.
In a residential environment this product may cause radio interference in which case the user may be required to take adequate measures.
The second environment typically includes an industrial low-voltage power supply network which does not supply buildings used for
residential purposes. Operating the drive in this environment without an external EMC filter may cause interference to nearby electronic
equipment whose sensitivity has not been appreciated. The user must take remedial measures if this situation arises. If the consequences
of unexpected disturbances are severe, it is recommended that the guidelines in
Section 4.10.7 Compliance with generic emission
be adhered to.
CAUTION
CAUTION
³
100 mm
(4 in)
Do not modify
the filter wires
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