Victron energy MultiPlus 12/3000/120 Anleitung Seite 17

AC input current lim it
These are the current limit settings for w hich Pow erControl and Pow erAssist come into operation.
Pow erAssit setting range:
- From 2,3A to 16A for models w ith 16A transfer capacity
- From 5,3 A to 50A for models w ith 50A transfer capacity
Factory setting: the maximum value (16A or 50A).
See Section 2, the book 'Energy Unlimited', or the many descriptions of this unique feature on our w ebsite www.victronenergy.com.
UPS feature
If this setting is 'on' and AC on the input fails, the MultiPlus sw itches to inverter operation practically without interruption. The MultiPlus
can therefore be used as an Uninterruptible Pow er Supply (UPS) for sensitive equipment such as computers or communication
systems.
The output voltage of some small generator sets is too unstable and distorted for using this setting – the MultiPlus w ould continually
sw itch to inverter operation. For this reason, the setting can be turned off. The MultiPlus w ill then respond less quickly to AC input
voltage deviations. The sw itchover time to inverter operation is consequently slightly longer, but most equipment (most computers,
clocks or household equipment) is not adversely impacted.
Recom mendation: Turn the UPS feature off if the MultiPlus fails to synchronise, or continually switches back to inverter operation.
Dynam ic current lim iter
Intended for generators, the AC voltage being generated by means of a static inverter (so-called 'inverter' generators). In these
generators, rpm is dow n-controlled if the load is low : this reduces noise, fuel consumption and pollution. A disadvantage is that the
output voltage w ill drop severely or even completely fail in the event of a sudden load increase. More load can only be supplied after the
engine is up to speed.
If this setting is 'on', the MultiPlus w ill start supplying extra pow er at a low generator output level and gradually allow the generator to
supply more, until the set current limit is reached. This allow s the generator engine to get up to speed.
This setting is also often used for 'classical' generators that respond slowly to sudden load variation.
WeakAC
Strong distortion of the input voltage can result in the charger hardly operating or not operating at all. If WeakAC is set, the charger will
also accept a strongly distorted voltage, at the cost of greater distortion of the input current.
Recom mendation: Turn WeakAC on if the charger is hardly charging or not charging at all (w hich is quite rare!). Also turn on the
dynamic current limiter simultaneously, and reduce the maximum charging current to prevent overloading the generator if necessary.
Note: w hen WeakAC is on, the maximum charge current is reduced by approximately 20%.
Not adjustable w ith DIP sw itches.
BoostFactor
Change this setting only after consulting w ith Victron Energy or w ith an engineer trained by Victron Energy!
Not adjustable w ith DIP sw itches.
Programmable relay
By default, the programmable relay is set as an alarm relay, i.e. the relay w ill de-energise in the event of an alarm or a pre-alarm
(inverter almost too hot, ripple on the input almost too high, battery voltage almost too low ). Not adjustable w ith DIP sw itches.
Auxiliary AC output (AC-out-2)
Besides the uninterruptable output, a second output (AC-out-2) is available that disconnects its load in the event of battery operation.
Example: an electric boiler or air conditioner that is allow ed to operate only if the genset is running or shore pow er is available.
In case of battery operation, AC-out-2 is sw itched off immediately. After the AC supply has become available, AC-out-2 is reconnected
w ith a delay of 2 minutes, this to allow a genset to stabilise prior to connecting a heavy load.
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