Emerson Unidrive M700 Installation Manual page 69

4.12.4 Compliance with EN 61800-3:2004 (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 4.12.5 Compliance with generic emission standards on
page 70. An external EMC filter will always be required.
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.
CAUT ION
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.
For longer motor cables, an external filter is required. Where a filter is required, follow the guidelines
in section 4.12.5 Compliance with generic emission standards .
Where a filter is not required, follow the guidelines given in section 4.12.3 General requirements for
EMC Ground (earth) connections on page 67.
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
CAUT ION 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 4.12.5 Compliance with generic
emission standards be adhered to.
Refer to section 5.1.25 Electromagnetic compatibility (EMC) on page 93 for further information on
compliance with EMC standards and definitions of environments.
Detailed instructions and EMC information are given in the EMC Data Sheet which is available from
the supplier of the drive.
Unidrive M/HS Frame 3 and 4 Power Installation Guide
Issue Number: 3
69