Ac Line Input Connections - Danfoss VLT AQUA Instruction Manual

3 How to Install

3.6.12 AC line input connections

The line power supply must be connected to terminals 91, 92 and 93. Ground is connected to the terminal to the right of terminal 93.
Terminal No.
91, 92, 93
94
3
Check the nameplate to ensure that the AC line voltage of the adjustable frequency drive matches the power supply of your plant.
Ensure that the power supply can supply the necessary current to the adjustable frequency drive.
If the unit is without built-in fuses, ensure that the appropriate fuses have the correct current rating.
3.6.13 External Fan Supply
If the adjustable frequency drive is supplied by DC or if the fan must run independently of the power supply, an external power supply can be applied.
The connection is made on the power card.
Terminal No.
100, 101
102, 103
The connector located on the power card provides the AC line voltage connection for the cooling fans. The fans are factory-equipped to be supplied from
a common AC line (jumpers between 100-102 and 101-103). If an external supply is needed, the jumpers are removed and the supply is connected to
terminals 100 and 101. A 5 Amp fuse should be used for protection. In UL applications, this should be a LittleFuse KLK-5 or equivalent.
3-58
Function
Line power R/L1, S/L2, T/L3
Ground
Function
Auxiliary supply S, T
Internal supply S, T
MG.20.P3.22 - VLT
VLT AQUA High Power Instruction Manual
®
is a registered Danfoss trademark