Victron energy EasySolar-II 48/3000/35-32 230V MPPT 250/70 GX Manuel page 15

Absorption time
In case of the standard setting 'Four-stage adaptive with BatterySafe mode' the absortion time depends on the bulk time
(adaptive charge curve), so that the battery is optimally charged.
9.2.1 Equalisation
Traction batteries require regular additional charging. In the equalisation mode, the product will charge with increased
voltage for one hour (4V for a 48V battery). The charging current is then limited to 1/4 of the set value.
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.
Automatic equalisation charging
This setting is intended for flooded tubular plate traction or OPzS batteries. During absorption the voltage limit increases
to 2,83V/cell (68V for a 48V battery) once the charge current has tapered down to less than 10% of the set maximum
current.
See 'tubular plate traction battery charge curve' in VEConfigure.
Storage voltage, Repeated Absorption Time, Absorption Repeat Interval
See Appendix E.
Bulk Protection
When this setting is 'on', the bulk charging time is limited to 10 hours. A longer charging time could indicate a system
error (e.g. a battery cell short-circuit).
AC input current limit
These are the current limit settings for which PowerControl and PowerAssist come into operation.
PowerAssist setting range: from 5,3A to 32A.
Factory setting: the maximum value (32A).
UPS feature
If this setting is 'on' and AC on the input fails, the product switches to inverter operation practically without interruption.
The output voltage of some small generator sets is too unstable and distorted for using this setting – the product would
continually switch to inverter operation. For this reason, the setting can be turned off. The product will then respond less
quickly to AC input voltage deviations. The switchover time to inverter operation is consequently slightly longer, but most
equipment (most computers, clocks or household equipment) is not adversely impacted.
Recommendation: Turn the UPS feature off if the product fails to synchronise, or continually switches back to inverter
operation.
Dynamic current limiter
Intended for generators, the AC voltage being generated by means of a static inverter (so-called 'inverter' generators). In
these generators, engine rpm is reduced in case of low load: this reduces noise, fuel consumption and pollution. A
disadvantage is that the output voltage will 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 device will start supplying extra power at a low generator output level and gradually allow the
generator to supply more, until the set current limit is reached. This allows the generator engine to get up to speed.
This setting is also often used for 'classical' generators that respond slowly to sudden load variation.
Weak AC
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.
Recommendation: Turn WeakAC on if the charger is hardly charging or not charging at all (which 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: when WeakAC is on, the maximum charge current is reduced by approximately 20%.
BoostFactor This value adjusts the PowerAssist behaviour. If you are experiencing issues with PowerAssist (e.g.
overload), please consult with a specialist trained by Victron Energy before attempting to modify.
Programmable relay
The device is equipped with multiple programmable relays. These relays can be programmed for all kinds of other
applications, for example as a starter relay for a generator.
Auxiliary AC output (AC-out-2)
Intended for non-critical loads and directly connected to the AC input. With current measurement circuit to enable
PowerAssist.
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