4 EN - Quick installation and start-up guide
Select the power cables
Size the power cables according to local regulations to carry the nominal current
given on the type designation label of your drive. See Ratings on page 53.
Ensure the cooling
The maximum ambient temperature without derating is 40 °C (+104 °F). No
condensation or frost is allowed. For more information on the ambient temperature,
see ACQ80-04 drives (0.75 to 160 kW) hardware manual (3AXD50000044998
[English]).
Protect the drive and input power cable
If you use gG fuses, make sure that the operating time of the fuse is below
0.5 seconds. Follow the local regulations.
Dual supply mode
The solar pump drive operates in dual supply mode either with a three phase input
supply from the grid or with DC input supply from photovoltaic array. A four-pole
changeover switch enables switching between the two supply modes. At a given time
only one supply (Photovoltaic array or grid supply) can provide power to the drive.
Note: Use two poles of the changeover switch in series to ensure that the voltage
applied across each pole is half of the full DC voltage.
Grid supply
Photovoltaic
array
4-pole
change
over switch
To drive U1, V1, W1
Solar pump
drive
Motor and
pump
To drive DC connection
ACQ80R0-R8 QIG.book Page 4 Friday, February 1, 2019 1:18 PM
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