KACO Powador 10.0 - 20.0 TL3 - Manual (Page 22)

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Installing the inverter
Page 22 Operating Instructions Powador 12.0 TL3-20.0 TL3
Authorised electrician
7.2.2.5 Unconnected inputs
NOTE
If one of the MPP trackers (A or B) is not used, then it must be short-circuited, otherwise faults can
occur in the self-test of the unit and the feed-in operation is not guaranteed. The short-circuiting of
an MPP tracker does not result in the device being damaged.
The recommended standard connection or the parallel input connection should always be used as
a matter of course before an MPP tracker is short-circuited and therefore remains unused.
Electrical data for unused MPP trackers
Connecting the DC inputs Number of modules per string: n
1
=n
2
=n
m
P
max
Per string < 0.5 * max. recommended PV generator power P
max
on the
MPP tracker used < max. power per tracker
I
max
< max. rated current (DC)
1
A B
2 3 4
U MPP
...
n
1
n
2
n
m
= =
Figure 11: Parallel input with Y-adapter, short-circuits the unused MPP Tracker B