Emc-Correct Installation; Mains Connection - Danfoss VLT Micro Drive FC 51 Series Operating Instructions Manual

3 Electrical Installation
FC 51
Bussmann
1 X 200-240 V
kW Type RK1
0K18 - 0K37 KTN-R15
0K75 KTN-R25
1K5 KTN-R35
2K2 KTN-R45
3 x 200-240 V
0K25 KTN-R10
3
0K37 KTN-R15
0K75 KTN-R20
1K5 KTN-R25
2K2 KTN-R40
3K7 KTN-R40
3 x 380-480 V
0K37 - 0K75 KTS-R10
1K5 KTS-R15
2K2 KTS-R20
3K0 KTS-R40
4K0 KTS-R40
5K5 KTS-R40
7K5 KTS-R40
Table 3.3: Fuses

3.1.3 EMC-Correct Installation

Following these guidelines is advised, where compliance with EN 61000-6-3/4, EN 55011 or EN 61800-3
Second environment
is in EN 61800-3
Good engineering practice to ensure EMC-correct electrical installation:
• Use only braided screened/armoured motor cables and control cables.
The screen should provide a minimum coverage of 80%.The screen material must be metal, not limited to but typically copper, aluminium, steel
or lead. There are no special requirements for the mains cable.
• Installations using rigid metal conduits are not required to use screened cable, but the motor cable must be installed in conduit separate from
the control and mains cables. Full connection of the conduit from the drive to the motor is required. The EMC performance of flexible conduits
varies a lot and information from the manufacturer must be obtained.
• Connect the screen/armour/conduit to earth at both ends for motor cables and control cables.
• Avoid terminating the screen/armour with twisted ends (pigtails). Such a termination increases the high frequency impedance of the screen,
which reduces its effectiveness at high frequencies. Use low impedance cable clamps or glands instead.
• Ensure good electrical contact between the de-coupling plate and the metal chassis of the frequency converter, see Instruction MI.02.BX.YY.
• Avoid using unscreened/unarmoured motor or control cables inside cabinets housing the drive(s), where possible.

3.2 Mains Connection

3.2.1 Connecting to Mains
Step 1: First mount earth cable.
Step 2: Mount wires in terminals L1/L, L2 and L3/N and tighten.
12
UL
Bussmann Bussmann Littel fuse
Type J Type T
JKS-15 JJN-15
JKS-25 JJN-25
JKS-35 JJN-35
JKS-45 JJN-45
JKS-10 JJN-10
JKS-15 JJN-15
JKS-20 JJN-20
JKS-25 JJN-25
JKS-40 JJN-40
JKS-40 JJN-40
JKS-10 JJS-10
JKS-15 JJS-15
JKS-20 JJS-20
JKS-40 JJS-40
JKS-40 JJS-40
JKS-40 JJS-40
JKS-40 JJS-40
, then it is acceptable to deviate from these guidelines. It is however not recommended.
MG.02.A4.02 - VLT
®
VLT Micro Drive FC 51 Operating Instructions
Ferraz-
Shawmut
Type RK1 Type CC
KLN-R15 ATM-R15
KLN-R25 ATM-R25
KLN-R35 -
KLN-R45 -
KLN-R10 ATM-R10
KLN-R15 ATM-R15
KLN-R20 ATM-R20
KLN-R25 ATM-R25
KLN-R40 ATM-R40
KLN-R40 -
KLS-R10 ATM-R10
KLS-R15 ATM-R15
KLS-R20 ATM-R20
KLS-R40 ATM-R40
KLS-R40 ATM-R40
KLS-R40 -
KLS-R40 -
First environment
Illustration 3.1: Mounting of earth cable and mains wires.
®
is a registered Danfoss trademark
Ferraz- Max. fuses non UL
Shawmut
Type RK1 Type gG
A2K-15R 15A
A2K-25R 25A
A2K-35R 35A
A2K-45R 45A
A2K-10R 10A
A2K-15R 15A
A2K-20R 20A
A2K-25R 25A
A2K-40R 40A
A2K-40R 40A
A6K-10R 10A
A2K-15R 15A
A6K-20R 20A
A6K405R 40A
A6K-40R 40A
A6K-40R 40A
A6K-40R 40A
is required. If the installation