175ZT975.10
Figure 4.8 Mount the EMC shield.
4.1.9 AC line input connections
Line power must be connected to terminals 91-1, 92-1,
93-1, 91-2, 92-2 and 93-2 (see
). Ground is
connected to the terminal to the right of terminal 93.
Terminal No.
Function
91-1, 92-1, 93-1
Line power R1/L1-1, S1/L2-1, T1/
L3-1
91-2, 92-2, 93-2
Line power R2/L1-2, S2/L2-2, T2/
L3-2
94
Ground
NOTE!
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.
4.1.10 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.
Function
100, 101
102, 103
Auxiliary supply S, T
Internal supply S, T
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 5A fuse should
be used for protection. In UL applications, this should be a
LittleFuse KLK-5 or equivalent.
How to Install
VLT AQUA 12-Pulse High Power Instruction Manual
MG.20.Y1.22 - VLT
®
is a registered Danfoss trademark
4-11
4
4
