Victron energy MultiGrid 12/3000/120 - 50/230/240V Manual Del Usuario página 18

Procedure
The AC input current limit can be set using DIP switches ds8, ds7 and ds6 (default setting: 50 A)
Procedure: set the DIP switches to the required value:
ds8 ds7 ds6
off off off = 6 A (1.4 kVA at 230 V)
off off on = 10 A (2.3 kVA at 230 V)
off on off = 12 A (2.8 kVA at 230 V)
off on on = 16 A (3.7 kVA at 230 V)
on off off = 20 A (4.6 kVA at 230 V)
on off on = 25 A (5.7 kVA at 230 V)
on on off = 30 A (6.9 kVA at 230 V)
on on on = 50 A (11.5 kVA at 230 V)
Remark: Manufacturer-specified continuous power ratings for small generators are sometimes inclined to be rather
optimistic. In that case, the current limit should be set to a much lower value than would otherwise be required on
the basis of manufacturer-specified data.
5.5.1.2 AES (Automatic Economy Switch)
Procedure: set ds5 to the required value:
ds5
off = AES off
on = AES on
Note: The AES option is only effective if the unit is used 'stand alone'.
5.5.1.3 Battery charge current limitation (default setting 75 %)
For maximum lead-acid battery life, a charge current of 10 % to 20 % of the capacity in Ah should be applied.
Example: optimal charge current of a 24 V/500 Ah battery bank: 50 A to 100 A.
The temperature sensor supplied automatically adjusts the charge voltage to the battery temperature.
If faster charging – and a subsequent higher current – is required:
- The temperature sensor supplied should always be fitted, since fast charging can lead to a considerable temperature rise of the battery
bank. The charge voltage will be adapted to the higher temperature (i.e. lowered) by means of the temperature sensor.
- The bulk charge time will sometimes be so short that a fixed absorption time would be more satisfactory ('fixed' absorption time, see
ds5, step 2).
Procedure
The battery charge current can be set in four steps, using DIP switches ds4 and ds3 (default setting: 75 %).
ds4 ds3
off off = 25 %
off on = 50 %
on off = 75 %
on on = 100 %
Note: when WeakAC is on, the maximum charge current is reduced from 100 % to approximately 80 %.
5.5.1.4 DIP switches ds2 and ds1 are not used during step 1.
5.5.1.5 Examples
examples of settings:
DS-8 AC input on
DS-7 AC input on
DS-6 AC input on
DS-5 AES off
DS-4 Ch. current on
DS-3 Ch. current off
DS-2 N/A off
DS-1 N/A off
Step 1, Example 1 (factory
setting):
8, 7, 6 AC-in: 50 A
5 AES: off
4, 3 Charging current: 75 %
2, 1 N/A
To store the settings after the DIP switches are set according to the required values: press the 'Up' button for 2 seconds (upper button
to the right of the DIP switches, see appendix A, position J). The overload and low-battery LEDs will flash to indicate acceptance of
the settings.
We recommend making a note of the settings, and filing this information in a safe place.
The DIP switches can now be used to apply the remaining settings (step 2).
16
DS-8 on DS-8
DS-7 on DS-7
DS-6 on DS-6
DS-5 off DS-5
DS-4 on DS-4
DS-3 on DS-3
DS-2 off DS-2
DS-1 off DS-1
Step1, Example 2: Step1, Example 3:
8, 7, 6 AC-in: 50 A 8, 7, 6 AC-in: 16 A
5 AES: off 5 AES: off
4, 3 Charge: 100 % 4, 3 Charge: 100 %
2, 1 N/A 2, 1 N/A
off DS-8 on
on DS-7 on
on DS-6 off
off DS-5 on
on DS-4 off
on DS-3 on
off DS-2 off
off DS-1 off
Step1,Example 4:
8, 7, 6 AC-in: 30 A
5 AES: on
4, 3 Charge: 50 %
2, 1 N/A