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Steca Xtender
Installation and Operating Instructions 723.932 Xtender V0.511 Seite 14
4.5.3
BATTERY
-
SIDE CONNECTION
Before connecting the battery, carefully check the voltage and polarity of the battery
using a voltmeter.
Incorrect polarity or surge voltage may seriously damage the device.
Prepare the batteries for connection: appropriate battery clamps, protection device (f), cable in
good conditions with correctly fitted clamps.
Fasten the black cable on to the negative pole (-) of the battery and the red cable on the open
protection device (f).
The battery cables must be protected by one of the following measures in all cases:
- protection device (fuse) at each pole
- protection device (fuse) on the pole connected to the earth
- mechanical envelope making an accidental short-circuit impossible.
When connecting the battery, a spark may occur when connecting the second pole. This
spark is due to the load of the internal filtering capacity of the Xtender.
When connecting the battery it is necessary to check that the configuration values of the Xtender
conform to the recommendations of the battery manufacturer. Non-conforming values may be
dangerous and/or seriously damage the batteries. The default values of the battery’s charge
threshold limits are shown in fig. 3a and specified in the configuration tables. If they prove not to
conform, it is necessary to modify them via the RCC 02/03 remote control before connecting the
voltage sources on the AC input. Steca is not responsible for default values not corresponding
with the recommendations of the manufacturer.
If the factory settings are modified, the new values must be entered on the configuration table on
p. 35 of this manual. The default values proposed by Steca are the usual values for gel batteries
(VRLA or AGM).
The calibre of the protection device (f) must be adapted to the cable section and also mounted as
close as possible to the battery.
B
ATTERY CABLE SECTION
(minimum recommended):
XTH3000-12
XTH5000-24
XTH6000-48
XTH8000-48
90 mm
2
90 mm
2
50 mm
2
70 mm
2
The cable sections recommended above are valid for lengths less than 3 m. Beyond this length it
is strongly recommended to over-section the battery cables.
The battery cables must also be as short as possible.
It is always preferable to keep the cable at the negative pole of the battery as short as possible.
The clamps must be carefully fixed and tightened sufficiently to guarantee minimum
loss. Insufficient tightening may cause dangerous heating at the connection point.
For safety reasons, we recommend an annual check on the tightness of all connections.
For mobile installation the connections should be checked more frequently for tightness.
The cabling and connection of the installation should only be carried out by an appropriately
qualified professional. The installation material such as cables, connectors, distribution boxes,
fuses, etc. must be adapted and must conform to the applicable laws and regulations the
application under consideration.