On/Off/Charger Only Switch; Remote Control; Equalisation And Forced Absorption; Forced Absorption - Victron energy MultiPlus 24/5000/120-100 230V Manual

3. OPERATION

3.1 On/Off/Charger Only Switch

When switched to "on", the product is fully functional. The inverter will come into operation and the LED "inverter on" will light up.
An AC voltage connected to the "AC in" terminal will be switched through to the "AC out" terminal, if within specifications. The inverter
will switch off, the "mains on" LED will light up and the charger commences charging. The "bulk", "absorption" or "float" LEDs will light
up, depending on the charger mode.
If the voltage at the "AC-in" terminal is rejected, the inverter will switch on.
When the switch is switched to "charger only", only the battery charger of the MultiPlus unit will operate (if mains voltage is present). In
this mode input voltage also is switched through to the "AC out" terminal.
NOTE: When only the charger function is required, ensure that the switch is switched to "charger only". This prevents the inverter from
being switched on if the mains voltage is lost, thus preventing your batteries from running flat.

3.2 Remote control

Remote control is possible with a 3-way switch or with a Multi Control panel.
The Multi Control panel has a simple rotary knob with which the maximum current of the AC input can be set: see PowerControl and
PowerAssist in Section 2.

3.3 Equalisation and forced absorption

3.3.1 Equalisation
Traction batteries require regular additional charging. In the equalisation mode, the MultiPlus will charge with increased voltage for one
hour (1V above the absorption voltage for a 12V battery, 2V for a 24V battery). The charging current is then limited to 1/4 of the set
value. The "bulk" and "absorption" LEDs flash intermittently.
Equalisation mode supplies a higher charging voltage than most DC consuming
devices can cope with. These devices must be disconnected before additional
charging takes place.

3.3.2 Forced absorption

Under certain circumstances, it can be desirable to charge the battery for a fixed time at absorption voltage level. In Forced Absorption
mode, the MultiPlus will charge at the normal absorption voltage level during the set maximum absorption time. The "absorption" LED
lights.

3.3.3 Activating equalisation or forced absorption

The MultiPlus can be put into both these states from the remote panel as well as with the front panel switch, provided that all switches
(front, remote and panel) are set to "on" and no switches are set to "charger only".
In order to put the MultiPlus in this state, the procedure below should be followed.
If the switch is not in the required position after following this procedure, it can be switched over quickly once. This will not change the
charging state.
NOTE: Switching from "on" to "charger only" and back, as described below, must be done quickly. The switch must be toggled such that
the intermediate position is 'skipped', as it were. If the switch remains in the "off" position even for a short time, the device may be turned
off. In that case, the procedure must be restarted at step 1. A certain degree of familiarisation is required when using the front switch on
the Compact in particular. When using the remote panel, this is less critical.
Procedure:
1. Check whether all switches (i.e. front switch, remote switch or remote panel switch if present) are in the "on" position.
2. Activating equalisation or forced absorption is only meaningful if the normal charging cycle is completed (charger is in 'Float').
3. To activate:
a. Switch rapidly from "on" to "charger only" and leave the switch in this position for ½ to 2 seconds.
b. Switch rapidly back from "charger only" to "on" and leave the switch in this position for ½ to 2 seconds.
c. Switch once more rapidly from "on" to "charger only" and leave the switch in this position.
4. On the MultiPlus (and, if connected, on the Multi Control panel) the three LEDs "Bulk", "Absorption" and "Float" will now flash 5 times.
5. Subsequently, the LEDs "Bulk", "Absorption" and "Float" will each light during 2 seconds.
a. If the switch is set to "on" while the "Bulk" LED lights, the charger will switch to equalisation.
b. If the switch is set to "on" while the "Absorption" LED lights, the charger will switch to forced absorption.
c. If the switch is set to "on" after the three LED sequence has finished, the charger will switch to "Float".
d. If the switch is has not been moved, the MultiPlus will remain in 'charger only' mode and switch to "Float".
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