Connection
(Pleaseconsulttheconnectionplanforyourdevice!)
1. „MAIN I“ Battery (must be connected)
2. Solar Panel (must be connected)
Only DSC 12, DSC 25
Connect the battery connections of the controller - (minus) and +
(plus) to the 12 V main battery, observing the correct polarity and
the cross-section of the cables (refer to the connection plan). Never
operate the controller without the battery „MAIN I“. If the battery is
not connected, the unit will not deliver a defined output voltage.
Only SC 20, SC 40
Connect the battery outputs of the solar charge controller - (Minus)
and + (Plus) with the 12 V battery with correct polarity. Adhere to
the cable cross section requirements as outlined in the section
“Connection Plan”.
All devices:
In case of wrong polarity of battery I, the internal safety fuse will be
triggered. The replacement fuse should have the same capacity, and it
should be of the same type!
Parallel charging of two or several batteries of the same voltage
(12 V) is admissible. The batteries are to be „paralleled“, i. e. the
„+“ connections of the batteries have to be coupled and should be
connected to the „+“ connection of the solar controller. The minus (-)
connections have to be coupled in the same way.
Shade the panels to minimize sparking during connection and to avoid
damage due to potential reverse polarity.
Observe the cable cross-sections (refer to connection plan)!
If several small solar panels are used, they are connected in parallel.
Partial shading of the panels or of parts of the panels (leaves, branches,
dirt etc.) results in average higher solar power (see connection plan).
The (-) minus connection of the solar panel must exclusively be
connected to the (-) minus terminal of the solar controller!
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