Magnum Energy ME-RC Manuel du propriétaire télécharger pdf (Page 31)

3.0 Setup

• SETUP: 09 Final Charge – The Final Charge stage setting is the stage

to which the charger will transition after the absorption stage has

ﬁ nished—as set in the 03 Absorb Time menu.

Default setting: Final = Multi

Range: Multi, Float, Silent (Rebulk)

Set Final Charge = Multi – The Multi setting (which is short for “Multi-

Stage”), transitions from the Absorption stage to Float. Once in the

Float stage for four hours with no DC load on the batteries, the charger

will enter the Full Charge stage (i.e., Battery Saver mode). In Full

Charge mode, the charger automatically stops charging but is still on

and actively monitoring the battery voltage. The charger will remain in

the Full Charge stage until the battery voltage drops below 12.7 VDC

for 12-volt batteries, 25.4 VDC for 24-volt batteries, and 50.8 VDC for

48-volt batteries—at which time it will return to the Float stage. These

battery voltages are the fully charged voltages of a battery at rest. The

charger will continue to cycle between Float and Full Charge as long as

incoming AC is available.

Info: When Multi is selected and the charger goes to Full Charge

mode, if another charge source (such as PV or wind) is charging the

batteries above the fully charged voltage, the charger will remain

in the Full Charge stage.

Why should I use Multi-Stage? Multi is the most commonly used charge

mode. It is suitable for most applications and will assure a full charge to

the batteries, without overcharging. If there is another alternate charge

source charging the batteries, such as PV, wind or hydro, then Multi mode

will use the inverter/charger to complete a full charge. The inverter/charger

will transition to Full Charge mode and the alternate charge source will then

maintain the battery voltage. If the alternate source is unable to maintain the

voltage, the charger will enter Float mode for another four hour period. The

Full Charge feature in the Multi mode also helps reduce water consumption

in ﬂ ooded batteries when they are left in the charge mode for extended

periods, such as in a backup power application.

Set Final Charge Stage = Float – The Float stage is a maintenance

charge mode that maintains a constant voltage—while delivering up

to the maximum rated current of the charger in order to power any

DC loads connected to the batteries. Most 3-stage chargers ﬁ nish the

charge mode in Float and remain in Float as long as an AC source is

available on the input of the charger. The ﬂ oat voltage is determined

by the battery type selected in the 03 Battery Type menu. Unlike Multi

mode, in Float mode there is no Full Charge feature.

Why should I use the Float Charge Stage? Float mode is typically used

when the charger is the only charge source connected to the batteries.

This mode will maintain the batteries at the ﬂ oat voltage. If using ﬂ ooded

batteries and the charger is in ﬂ oat for an extended period, the water level

should be checked every two to three weeks for proper levels.

Set Final Charge Stage = Silent – Silent mode stops charging once it

transitions from Absorb mode to ‘Silent’. Once the charger enters Silent

mode the battery voltage is continuously monitored. If the batteries

fall to the Rebulk value, the charger restarts the Bulk Charge mode

and then transitions to Absorb Charge mode. After the Absorb Charge

mode, the charger again transitions to Silent mode. This silent to rebulk

to absorb and back to silent cycle will continue as long as it is required.

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Magnum Energy ME-RC Manuel du propriétaire Page 31

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