SupportMode(ExternalPowerSupplyFsv); CurrentConsumptionTest,DeeplyDischargedBatteries - Würth BLG 12/24 V – 120 A Betriebsanleitung

4.8.4 Support mode (external power supply PSU)
This operating mode is intended for vehicles without batteries or
whenchangingbatteries.Thechargersuppliesafixedoutput
voltage up to the max. power of the device.
Note!
In this operating mode there is no automatic check for incorrect
polarity of the terminals. The operator is fully responsible for the
correct polarity.
Theselectionismadebytouchingtheactive"chargemode"area
(about3sec.).
The device switches to support mode, which is also illustrated by the
brighterbackgroundandtheflashingblueLED.Thevoltagesetin
charge mode is accepted.
Thebatteryclampsarestillnotlive,whichisindicatedbytheflash-
ing power symbol. The device can now be connected with the
correct polarity.
Thevoltageisswitchedonusingthe"ON/OFF"button(8).The
output voltage increases to 13 volts and the blue support mode LED
lights up continuously.
Now the necessary work can be carried out on the vehicle.
Aftercompletion,thevoltagecanbeswitchedoffagainwiththe
"ON/OFF"button(8)sothattheclampscanbedisconnected
without being live.
Touchingthe"supportmode"fieldfor3secondsswitchesbackto
"chargemode".
If,forexample,thesupportmodeisrequiredforcommercialvehi-
cles with 24 volts, it is necessary to change the voltage to 24 volts
by pressing the number wheel symbol in the menu for 3 seconds
(4.8.3.2Adjustingthechargingparameters).
The current values of the output voltage and the output current are
permanently visible in the display.
4.8.5 Current consumption test, deeply discharged batteries
At the beginning of a normal charging process, the charger checks if the battery's charging consumption
capacity and if it is deeply discharged. The battery voltage must have risen above 1.5 volts/cell after 30
minutes to pass the test. The charge will then continue automatically. Otherwise a time error is output. If the
battery is in the voltage range between 0.25 volts/cell and 1.5 volts/cell, it is automatically charged gently
with a reduced current.
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