Emc-Correct Electrical Installation - Danfoss VLT HVAC Basic Drive FC 100 Series Design Manual

How to Install
Non UL compliance
If UL/cUL is not to be complied with, Danfoss recommends
using the fuses mentioned in the below table, which will
ensure compliance with IEC 61800-5-1:
In case of malfunction, not following the fuse recommen-
dation may result in damage to the frequency converter.
UL
Bussmann Bussmann Bussmann Bussmann Max.
Power Type RK5 Type RK1 Type J
kW
3 x 200-240V
0.25 FRS-R-10 KTN-R10
0.37 FRS-R-10 KTN-R10
0.75 FRS-R-10 KTN-R10
1.5 FRS-R-10 KTN-R10
2.2 FRS-R-15 KTN-R15
3.7 FRS-R-25 KTN-R25
5.5 FRS-R-50 KTN-R50
7.5 FRS-R-50 KTN-R50
11 FRS-R-80 KTN-R80
3 x 380-480V
0.37 FRS-R-10 KTS-R10
0.75 FRS-R-10 KTS-R10
1.5 FRS-R-10 KTS-R10
2.2 FRS-R-15 KTS-R15
3 FRS-R-15 KTS-R15
4 FRS-R-15 KTS-R15
5.5 FRS-R-25 KTS-R25
7.5 FRS-R-25 KTS-R25
11 FRS-R-50 KTS-R50
15 FRS-R-50 KTS-R50
18.5 FRS-R-80 KTS-R80
22 FRS-R-80 KTS-R80
30 FRS-R-80 KTS-R80
37 FRS-R-100 KTS-R100
45 FRS-R-125 KTS-R125
55 FRS-R-150 KTS-R150
75 FRS-R-200 KTS-R200
90 FRS-R-250 KTS-R250
VLT HVAC Basic Drive Design Guide
Non
UL
Fuse
Type T Type
gG
JKS-10 JJN-10 10
JKS-10 JJN-10 10
JKS-10 JJN-10 10
JKS-10 JJN-10 10
JKS-15 JJN-15 16
JKS-25 JJN-25 25
JKS-50 JJN-50 50
JKS-50 JJN-50 50
JKS-80 JJN-80 65
JKS-10 JJS-10 10
JKS-10 JJS-10 10
JKS-10 JJS-10 10
JKS-15 JJS-15 16
JKS-15 JJS-15 16
JKS-15 JJS-15 16
JKS-25 JJS-25 25
JKS-25 JJS-25 25
JKS-50 JJS-50 50
JKS-50 JJS-50 50
JKS-80 JJS-80 65
JKS-80 JJS-80 65
JKS-R80 JJS-R80 80
JKS-R100 JJS-R100 100
JKS-R125 JJS-R125 125
JKS-R150 JJS-R150 150
JKS-R200 JJS-R200 200
JKS-R250 JJS-R250 250
®
MG.18.C2.02 - VLT is a registered Danfoss trademark

5.2.5 EMC-Correct Electrical Installation

General points to be observed to ensure EMC-correct
electrical installation.
•
Use only screened/armoured motor cables and
screened/armoured control cables.
•
Connect the screen to earth at both ends.
•
Avoid installation with twisted screen ends
(pigtails), since this ruins the screening effect at
high frequencies. Use the cable clamps provide-
dinstead.
•
It is important to ensure good electrical contact
from the installation plate through the installation
screws to the metal cabinet of the frequency
converter.
•
Use starwashers and galvanically conductive
installation plates.
•
Do not use unscreened/unarmoured motor cables
in the installation cabinets.
5 5
51