Illustration 3.39: Mounting of EMC shield.
3.2.13. Mains connection
Mains must be connected to terminals 91, 92 and 93. Earth/ground is connected to the terminal
to the right of terminal 93.
Terminal No.
Function
91, 92, 93
94
Mains R/L1, S/L2, T/L3
Ground/Earth
Check the name plate to ensure that the mains voltage of the VLT frequency con-
verter matches the power supply of your plant.
Ensure that the power supply can supply the necessary current to the VLT frequency converter.
If the unit is without built-in fuses, ensure that the appropriate fuses have the correct current
rating.
3.2.14. External Fan Supply
In case DC supplies the frequency converter or the fan must run independently of the power
supply, an external power supply can be applied. The connection is done to the power card.
Terminal
No.
Function
100, 101
102, 103
Auxiliary supply S, T
Internal supply S, T
The connector located on the power card provides the connection of line voltage for the cooling
fans. The fans are connected from factory to be supplied form a common AC line (jumpers be-
tween 100-102 and 101-103). If external supply is needed, the jumpers are removed and the
supply is connected to terminals 100 and 101.
3. Installation
VLT
®
5000/6000/8000
High Power Installation Guide
34
MI.90.J2.02 - VLT
®
is a registered Danfoss trademark
3
