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8.6.1. Remote Control
The product can be remotely controlled in two ways.
• With an external switch (connection terminal M, see Appendix A). Operates only if the switch on the device is set to "on".
• With a Digital Multi Control panel (connected to one of the two RJ45 sockets L, see Appendix A). Operates only if the switch on
the device is set to "on"
The Digital Multi Control panel has a rotary knob with which the maximum current of the AC input can be set: see PowerControl
and PowerAssist.
8.6.2. Programmable relay
The relay can be programmed for all kinds of other applications, for example as a starter relay for a generator.
8.6.3. Programmable analog/digital input/output ports
The product is equipped with 2 analog/digital input/output ports.
These ports can be used for several purposes. One application is communication with the allow-to-charge and allow-to-discharge
BMS controls of a lithium-ion battery.
8.6.4. 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 0,75mm².
During battery charging, the inverter/charger will compensate the voltage drop over the DC cables up to a maximum of 1 Volt (i.e.
1V over the positive connection and 1V over the negative connection). If the voltage drop threatens to become larger than 1V, the
charging current is limited in such a way that the voltage drop remains limited to 1V.
8.6.5. Temperature sensor (connection terminal J, see Appendix A)
For temperature-compensated charging, the temperature sensor (supplied with the inverter/charger) can be connected. The
sensor is isolated and must be fitted to the negative terminal of the battery.
8.6.6. Parallel Connection
It is required to use identical units for three phase and parallel systems. In this case, as only one GX device is allowed per
system, if you wish to parallel and/or three phase with this product, you must find the same model MultiPlus-II to pair.
To assist with finding identical units, consider instead using MultiPlus-II for parallel and three phase systems, and an external GX
device.
Up to six units can be connected in parallel. When connecting this product with MultiPlus-II in a parallel system, the following
requirements must be met:
It is essential the negative battery terminal between the units is always connected. A fuse or circuit breaker is
not allowed on the negative.
• All units must be connected to the same battery.
• A maximum of six units connected in parallel.
• The devices must be identical (aside from GX part) and have the same firmware.
• 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 units.
• Always interconnect the negative battery cables before placing the UTP cables.
• Place the units close to each other, but allow at least 10cm for ventilation purposes under, above and beside the units.
• UTP cables must be connected directly from one unit to the other (and to the remote panel). Connection or splitter boxes are
not permitted.
• Only one remote control means (panel or switch) can be connected to the system. That means only one GX device. If multiple
GX models are to be connected in parallel or three phase, the internal connection between GX card and other components
must be disconnected. For this reason it is recommended to use the MultiPlus models without built-in GX for these systems.
8.6.7. Three-phase operation
The product 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 will require subsequent configuration.
Page 14
EasySolar-II GX - Product Manual
Installation
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