80 Unidrive M / HS Frame 7 to 10 Power Installation Guide
Issue Number: 5
4.11.5 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 4.11.6 Compliance with generic emission standards on
page 81. 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 Unidrive M /
Unidrive HS drives with a rated input current of less than 100 A.
The drive contains an internal 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.
The requirements of operating in the second environment are met, depending on the motor cable
length for 3 kHz switching frequency as stated in Table 4-9.
Table 4-9 summarizes the performance of the internal filter when used with Unidrive M / Unidrive HS
size 7 to 10 drives, assembled in the standard recommended configuration.
Table 4-9 Second environment emission compliance, internal filter
Key:
Unrestricted: EN 61800-3:2004+A1:2012 second environment, unrestricted distribution.
For longer motor cables, an external filter is required. Where a filter is required, follow the guidelines
in section 4.11.6 Compliance with generic emission standards .
Where a filter is not required, follow the guidelines given in section 4.11.4 General requirements for
EMC on page 76.
This is a product of the restricted distribution class according to EN 61800-
3:2004+A1:2012
In a residential environment this product may cause radio interference in which case the
user may be required to take adequate measures.
Drive size Voltage Motor Cable Length (m) Restriction
7 Any 0 - 100 Restricted
8 200 & 400 0 - 10 Unrestricted
8 200 & 400 10 - 100 Restricted
8 575 & 690 0 - 100 Restricted
9 and 10 200 & 400 0 - 100 Unrestricted
9 and 10 575 & 690 0 - 50 Unrestricted
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 4.11.6 Compliance with generic
emission standards be adhered to.
Unidrive M frame7 to 10 Power Installation Guide issue5.book Page 80 Tuesday, May 24, 2016 11:52 AM
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