Danfoss VLT DriveMotor FCP 106 Design Manual page 26

Product Overview
To ensure EMC-compliant electrical installation, observe
these general points:
2 2
•
Use only screened motor cables and screened
control cables.
•
Connect the screen to ground at both ends.
•
Avoid installation with twisted screen ends
(pigtails), since this type of installation ruins the
2.6.2 Emission Requirements
According to the EMC product standard for adjustable speed frequency converters EN/IEC 61800-3:2004, the EMC
requirements depend on the intended use of the frequency converter. The EMC product standard defines 4 categories,
described in Table 2.2, along with the requirements for mains supply voltage conducted emissions.
Category
C1
C2
C3
C4
Table 2.2 Emission Requirements - EN/IEC 61800-3:2004
When the generic emission standards are used, the frequency converter must comply with the following limits:
Environment
First environment
(home and office)
Second environment
(industrial environment)
Table 2.3 Emission Requirements - EN/IEC 61000-6-3 and EN/IEC 61000-6-4
A system comprises:
•
FCP 106, motor, and screened motor cable; or
•
FCM 106
For either of these systems, the conducted emission
complies with EN 55011 Class B, and the radiated emission
complies with EN 55011 Class A, Group 1. Compliance is
achieved based on the following conditions:
•
Built-in RFI filter.
•
Frequency converter set to nominal switching
frequency.
•
Maximum screened motor cable length of 2 m
(6.56 ft).
24
®
VLT
Definition according to EN/IEC 61800-3:2004
Frequency converters installed in the first environment (home and office) with a
supply voltage less than 1000 V.
Frequency converters installed in the first environment (home and office) with a
supply voltage less than 1000 V, which are neither plug-in nor movable, and
which are intended for professional installation and commissioning.
Frequency converters installed in the second environment (industrial) with a
supply voltage lower than 1000 V.
Frequency converters installed in the second environment with a supply
voltage equal to or above 1000 V, or rated current equal to or above 400 A, or
intended for use in complex systems.
Generic standard
EN/IEC 61000-6-3 Emission standard for residential,
commercial, and light industrial environments.
EN/IEC 61000-6-4 Emission standard for industrial
environments.
Danfoss A/S © 06/2016 All rights reserved.
DriveMotor FCP 106/FCM 106
screen effect at high frequencies. Use the cable
clamps provided instead.
•
Ensure the same potential between frequency
converter and ground potential of the PLC.
•
Use star washers and galvanically conductive
installation plates.
Conducted emission requirement
according to the limits given in
EN 55011
Class B
Class A Group 1
Class A Group 2
No limit line.
Make an EMC plan.
Conducted emission requirement
according to the limits given in
EN 55011
Class B
Class A Group 1
MG03M202