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Multi RS Solar
4.9. VE.Can
Used to connect to a GX Device, and/or daily-chain communications to other VE.Can compatible products such as the VE.Can
MPPT range.
4.10. Bluetooth
Used to connect to the device via VictronConnect for configuration.
Note that this Bluetooth interface is not compatible with VE.Smart Networking (i.e Smart Battery Sense).
4.11. User I/O
4.11.1. Remote on/off connector
The remote on/off connector has two terminals, the "Remote L" and the "Remote H" terminal.
The Multi RS Solar ships with the remote on/off connector terminals connected to each other via a wire link.
Note that for the remote connector to be operational, the main on/off switch on the Multi RS Solar needs to be switched to "on"
The remote on/off connector has two different operational modes:
On/off mode (default):
The default function of the remote on/off connector is to remotely switch the unit on or off.
• The unit will switch on if "Remote L" and the "Remote H" are connected to each other (via a remote switch, relay or the wire
link).
• The unit will switch off if "Remote L" and the "Remote H" are not connected to each other and are free floating.
• The unit will switch on if "Remote H" is connected to battery positive (Vcc).
• The unit will switch on if "Remote L" is connected to battery negative (GND).
2-wire BMS mode:
This feature can be enabled via VictronConnect. Go to "battery settings" and then to "Remote mode". (see attached image)
Set the remote mode from "on/off" to "2-wire BMS".
In this mode, the "load", "load disconnect" or "allowed to discharge" signal and the "charger", "charger disconnect" or "allowed
to charge" signals from a Victron lithium battery BMS are used to control the unit. They respectively turn the inverter off in case
discharge is not allowed, and turn the solar charger off if charging is not allowed by the battery.
• Connect the BMS "load", "load disconnect" or "allowed to discharge" terminal to the Inverter RS Smart "Remote H" terminal.
• Connect the BMS "charger", "charge disconnect" or "allowed to charge" to the unit Inverter RS Smart "Remote L" terminal.
4.11.2. Programmable relay
Programmable relay which can be set for general alarm, DC under voltage or genset start/stop function. DC rating: 4A up to
35VDC and 1A up to 70VDC
4.11.3. Voltage sense
For compensating possible cable losses during charging, two sense wires can be connected directly to the battery or to the
positive and negative distribution points. Use wire with a cross-section of 0,75mm².
During battery charging, the 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.
4.11.4. Temperature sensor
For temperature-compensated charging, the temperature sensor (supplied with the unit) can be connected. The sensor is isolated
and must be fitted to the negative terminal of the battery. The temperature sensor can also be used for low temperature cut-off
when charging lithium batteries (configured in VictronConnect).
Page 13
Installation
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