Emc Standards; Radiated Emissions Standards - Parker AC30P Hardware Installation Manual

EMC Standards

The EMC standards are concerned with two types of emission:
- Radiated: Those in the band 30MHz – 1000MHz which radiate into the environment.
- Conducted: Those in the band 150kHz – 30MHz which are injected into the supply.

RADIATED EMISSIONS STANDARDS

The standards have common roots (CISPR 11 & CISPR14) so there is some commonality in the test levels applied in different environments.
Product Specific
For category C1, if the field strength measurement at 10m cannot be made because of high ambient noise levels or for
other reasons, the measurement may be made at 3m.
If the 3m distance is used, the measurement result obtained shall be normalised to 10m by subtracting 10dB from the
result.
In this case, care should be taken to avoid near field effects, particularly when the PDS (Power Drive System) is not of an
appropriately small size, and at frequencies near 30MHz.
When multiple drives are used, 3dB attenuation per drive needs to be added.
AC30 series Variable Speed Inverter
Standards
EN 61800-3 EN61000-6-3
Category C1 Equivalent
Category C2 Not applicable
These limits have no relationships with
Category C3
the generic standards.
* = Limit has been adjusted for a measurement distance of 10m.
Generic
Frequency
(MHz)
EN61000-6-4
30 - 230
Not applicable
230 - 1000
30 - 230
Equivalent
230 - 1000
30 - 230
230 - 1000
Compliance
Limits*
dB(µV/m)
30
37
40
47
50
60
A-5