Bedienungsanleitung Victron MultiPlus II 48 3000 35-32 (Seite 13 von 138) (Deutsch, Englisch, Holländisch, Französisch, Schwedisch, Finnisch)

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EN NL FR DE FI SE Appendix

4.4.5 Voltage sense (connection terminal J, see appendix A)

For compensating possible cable losses during charging, two sense wires can be connected with which the voltage directly on the

battery or on the positive and negative distribution points can be measured. Use wire with a cross-section of 0,75 mm².

During battery charging, the Quattro will compensate the voltage drop over the DC cables up to a maximum of 1 Volt (i.e. 1 V over the

positive connection and 1 V over the negative connection). If the voltage drop threatens to become larger than 1 V, the charging current

is limited in such a way that the voltage drop remains limited to 1 V.

4.4.6 Temperature sensor (connection terminal J, see appendix A)

For temperature-compensated charging, the temperature sensor (supplied with the Quattro) can be connected. The sensor is isolated

and must be fitted to the negative terminal of the battery.

4.4.7 Parallel Connection

Up to six identical units can be connected in parallel. When connecting MultiPlus-II units in parallel, the following requirements must be

met:

• All units must be connected to the same battery

• A maximum of six units connected in parallel.

• Only identical devices may be connected in parallel.

• The DC connection cables to the devices must be of equal length and cross-section.

• If a positive and a negative DC distribution point is used, the cross-section of the connection between the batteries and the DC

distribution point must at least equal the sum of the required cross-sections of the connections between the distribution point and

the MultiPlus-II units.

• Place the MultiPlus-II units close to each other, but allow at least 10cm for ventilation purposes under, above and beside the units.

• It is essential the negative battery terminal between the units is always connected. A fuse or circuit breaker is not allowed.

• UTP cables must be connected directly from one unit to the other (and to the remote panel). Connection or splitter boxes are not

permitted.

• Always interconnect the negative battery cables before placing the UTP cables.

• Only one remote control means (panel or switch) can be connected to the system.

4.4.8 Three-phase operation

The MultiPlus-II can also be used in 3-phase wye (Y) configuration. To this end, a connection between the devices is made by means of

standard RJ45 UTP cables (the same as for parallel operation). The system (MultiPlus-II plus an optional control panel) will require

subsequently configuration (see Section 5).

Pre-requisites: see Section 4.4.5.

1. Note: the MultiPlus-II is not suitable for 3-phase delta (Δ) configuration.

2. When the AS4777.2 grid code has been selected in VEConfigure, only 2 units in parallel per phase are allowed in a three

phase system.

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