Bedienungsanleitung Victron Skylla-i 24 80 (1 1) (Seite 10 von 75) (Deutsch, Englisch, Holländisch, Französisch, Spanisch)

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DS-1. Automatic equalization. When DS-1 is switched on, the absorption charge will be followed by a voltage limited constant

current period (see table). The yellow LED “abs” will blink during equalization.

The current is limited to 8% of the bulk current for all VRLA (Gel or AGM) batteries and some flooded batteries, and to 25% of

the bulk current for all tubular plate batteries. The bulk current is the rated charger current (80A or 100A) unless a lower setting

has been chosen (charge current can be reduced with the current setting potentiometer and rotary switch in position 8, or with

the Can bus interface).

If, as recommended by most battery manufacturers, the bulk charge current is about 20A per 100Ah battery capacity (i.e. 500Ah

for a 100A charger), the 8% limit translates to 1,6A per 100Ah battery capacity, and the 25% limit translates to 5A per 100Ah

capacity.

In case of all VRLA batteries and some flooded batteries (rotary switch position 1, 2 or 3) automatic equalization ends when the

voltage limit maxV has been reached, or after t = (absorption time)/8, whichever comes first.

For all tubular plate batteries automatic equalization ends after t = (absorption time)/2.

Warning

Some battery manufacturers do recommend a constant current equalization period, and others do not. Do not use

constant current equalization unless recommend by the battery supplier.

Rotary switch position 8: manual setting potentiometers

These potentiometers provide adjustable levels for (from top to bottom):

• bulk current (range 0A .. 100A for a 100A charger)

• absorption voltage (range 11.5V .. 33.5V)

• float voltage (range 11.5V .. 33.5V)

Control direction is such that the values increase when turning the potentiometer clockwise. For easy adjustment the charger

will automatically jump to the appropriate mode as soon as it detects a change in the position of a potentiometer. When satisfied

with the settings, restart the charger and it will go through the regular charge sequence using the new settings.

Software version 2.01 and higher: when adjusting, the current and voltage will be indicated by the LED bars (blinking) on the

Skylla-i, and by the display (blinking) on Skylla-i control panel.

Rotary switch position 9: DC power supply mode

The charger can be set to operate as a DC power supply.

In this mode, the charger functions as a constant voltage source with a maximum output current of 80 resp. 100A. By default the

output voltage is set to 24V, if needed the output voltage can be changed by adjusting the absorption voltage potentiometer

(range 11.5V .. 33.5V). When satisfied with the new setting switch off the charger using the main on/off switch and it will store

the voltage level.

When adjusting, the voltage will be indicated by the LED bars (blinking) on the Skylla-i, and by the display (blinking) on Skylla-i

control panel.

3.4. Temperature compensation

The temperature sensor should be connected to the minus pole of the battery.

The temperature compensation is set at -32mV/°C for all 24V lead acid batteries (see table and fig 7), and all charge states.

The temperature sensor must be installed when:

• ambient temperature of the battery is expected to regularly be lower than 15°C or to regularly exceed 30°C

• charge current exceeds 15A per 100Ah battery capacity

Temperature compensation is not required for Li-Ion batteries.

3.5. Manual equalize function

With the equalize button on the front, the charger can be put in equalize mode only during absorption and float periods. When

the charger is still in bulk mode equalization is not possible.

To enable equalization, press the equalize button for three seconds. The yellow led "abs" and “bulk” will alternate during

equalization.

Current and voltage limits are identical to the automatic equalize function (see section 3.3). The equalize duration is however

limited to max. 1hr when triggered with the equalize button.

3.6. Power Control – maximum use of limited shore current

A maximum input current can be set in order to avoid fusing the mains supply.

This adjustment is only available with the optional Skylla-i control panel or the Color Control GX panel.

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