¶ Introduction
The Solinteg inverter that can be used with MG battery systems is CAN bus controlled.
¶ Compatibility
The communication between the Solinteg inverter and a MG battery system is done by CAN bus. The Solinteg inverter needs all the battery information to work properly. Therefore, the SmartLink MX is required to act as a controller between the MG Master LV/HV and the inverter.
¶ Voltage range
The Solinteg inverter only works with a battery voltage from 150 up to 750V.
¶ MG SmartLink MX
- Minimum firmware version:
V1.14 (only CAN-B) - Maximum supported inverters:
1
¶ Supported inverters
The table below shows the available versions that are supported by a SmartLink MX.
| Type | Voltage (out) | Current (out) | MPN | Features | Supported by |
|---|---|---|---|---|---|
| MHT-25~50K series | 135-750V | 100A | MHT- PWR1K-100 | IP65 Fan-cooled Inverter PV Generator |
1 PWR = Backup AC output power (KW)
¶ Schematic example
The schematic below shows a system example with a Solinteg inverter connected to the MG battery system.
¶ Installation
Always make sure to carefully read and follow the charger manuals first.
¶ DC connections
Recommended cross section of DC cables between Solinteg and MG Master HV: 25mm2
¶ CAN bus connections
To setup CAN bus communication, CAN-H and CAN-L of the Solinteg inverter must be connected to the CAN-H and CAN-L of the SmartLink MX:
| Function | MG: CAN-B (RJ45) | Solinteg: COM2 BMS(RJ45) |
|---|---|---|
| CAN-H | Pin 7 | Pin 4 |
| CAN-L | Pin 8 | Pin 5 |
¶ Solinteg COM2 connector details
The solinteg inverter COM2 connector has multiple connections for different functions.
The battery system must be connected to the BMS RJ45 of COM2:
| Pin | Function | Description |
|---|---|---|
| METER (RJ45) | RS 485 | Communication with Meter |
| BMS (RJ45) | CAN bus | Communication with BMS (MG battery system) |
| 1 | COM | DO-1 (Multifunction Relay) |
| 2 | NO (Normaly Open) | DO-1 (Multifunction Relay) |
| 3 | / | Reserved |
| 4 | / | Reserved |
| 5 | DRM4/8 | DRED (For Australia and New Zealand) |
| 6 | DRM3/7 | DRED (For Australia and New Zealand) |
| 7 | DRM2/6 | DRED (For Australia and New Zealand) |
| 8 | DRM1/5 | DRED (For Australia and New Zealand) |
| 9 | ||
| 10 | ||
| 11 | Fast stop + | Fast stop |
| 12 | Fast stop - | Fast stop |
| 13 | 485 B1 | EMS |
| 14 | 485 A1 | EMS |
| 15 | COM D/0 | DRED (For Australia and New Zealand) |
| 16 | REF D/0 | DRED (For Australia and New Zealand) |
| 17 | CANL_P | CAN for parallel connection of inverters |
| 18 | CANH_P | CAN for parallel connection of inverters |
| 19 | / | Reserved |
| 20 | / | Reserved |
¶ BMS RJ45 connector pinout
| Pin | Ethernet cable wire color | Description |
|---|---|---|
| 1 | White/Orange | RS485_A3 |
| 2 | Orange | RS485_B3 |
| 3 | White/Green | / |
| 4 | Blue | CANH_B |
| 5 | White/Blue | CANL_B |
| 6 | Green | / |
| 7 | White/Brown | / |
| 8 | Brown | / |
¶ MG CAN bus connector details
For MG SmartLink MX CAN-B connector pinout, check the application note: MG CAN bus pinning
Solinteg inverters must always be connected to CAN-B of the SmartLink MX.
¶ Configuration
The SmartLink MX controls the inverter by CAN bus. The configuration consists of a normal configuration for a standalone or combined battery system and a few settings in the SmartLink MX to enable the CAN bus control.
¶ MG Master LV/HV
Adding a Master LV/HV's to the SmartLink MX configuration:
¶ MG SmartLink MX
For a Solinteg inverter, it is recommended to change the settings of the MG SmartLink MX with the MG Connect App (Available for Apple or Android). This is because CAN-B CAN bus protocol must be changed to Additional charger protocol. Meaning that communication with the MG Diagnostic Tool or MG Energy Monitor is disabled.
The MG Diagnostic Tool or MG Energy Monitor are NO longer supported on this CAN bus as long the CAN-B CAN bus protocol is not set to
CoffeeCAN.
The CAN-B CAN bus protocol can always be changed using the MG Connect App.
The CAN-B CAN bus protocol will automatically go to
CoffeeCANby pushing the start/stop button for 5 times. 5 beeps/flashes will indicate that the protocol has been changed toCoffeeCAN.
-
Set CAN-B CAN bus protocol to
Additional charger protocol. (Read notes above before changing this setting) -
Set Charge current limit to the highest allowed charge current allowed by the hardware (charger limits, cable size, etc...) .
-
Change the setting Additional CAN bus charger to
Solinteg inverter. The Number of CAN bus chargers field will automaticaly be set to 1 once the settings are saved. -
The communication between the battery system and inverter can be validated by the communication indication light on the Solinteg inverter changes to green.
