MICROCARE AND SOLAR MD

Microcare-A2-Inverter-Poster-Aug-2017-10

Solar MD – Microcare configuration for Lithium-Ion battery
 

Microcare and Solar MD Lithium-Ion battery has been tested with most 48V models and allows for system capacities from 1kVA to 300 kVA and up to 2 MWh Lithium-Ion storage.

  • off-grid systems

  • battery charger only

  • current injector

  • support to an AC source
     

== System overview ==

Microcare-diagram-Solar-MD-1024x967.jpg

The Solar MD Lithium-Ion battery system includes an integrated Battery Management System (BMS) within each battery module and requires a Logger V2 in order to interface with the Microcare devices.
 

To find out how to install the Solar MD Logger V2, watch this YouTube installation video.

 

The minimum required hardware for Microcare + Solar MD system:

Minimum battery modules required and compatible models:

Microcare 1.png

For SS237 – 25.6V (24V systems) please contact Solar MD support team for further assistance.

 

Charge parameters for Solar MD Lithium-Ion batteries
In normal operation the charge parameters are controlled by the Solar MD Logger V2 and are communicated through the system by a lithium-Ion interface 4 pin socket to the inverter/charger and MPPT.  However as a precaution it is advised to set the suggested settings below.

 

Charger tab

Microcare 2.png

Note: Values are considered for 12V nominal battery.  For a Solar MD 51.2V battery the Boast voltage of 54.4V is set at 13.6V.

 

Inverter settings


In the inverter settings:

Microcare 3.png

Note: Values are considered for 12V nominal battery.  For a Solar MD 51.2V battery the Boast voltage of 54.4V is set at 13.6V.

 

Lithium-Ion programmable Relays for Microcare control from Solar MD:
 

Note: Solar MD relays on the Logger V2 are not configured by default.  It is recommended to configuring the relays before installation by connecting Logger V2 to a power supply and internet.  If you don’t have a profile, please contact your distributor or Solar MD support team.
 

Step 1) Go to the Solar MD monitoring platform and adopt your Logger V2:

login.mypower24.co.za 

 

Step 2) Go to My Devices > Outputs.

Microcare 4.png

Step 3) Go to Settings > Under Controlling Method, select "Expression" and click "Set". 

Step 4) Set Relay 1 on Logger V2 on Charge control (Settings > Add Expression).
 

  • Add expression for ON:  ES Control Service / Output ES control / bus0 / Charge Control less than 40

On-Expression.png

If this condition is achieved Relay 1 will open (MPPT and the inverter will stop charging).

 

  • Add expression for OFF:  ES Control Service / Output ES control / bus0 / Charge Control greater than 99 (with delay 300s).

OFF-Expression.png
  • Add expression to secure the position of the Relay NC.

NC-Expression-assurance.png

Step 5) Set Relay 2 on Logger V2 on Discharge control (Settings > add Expression).
 

  • Add expression for ON:  ES Control Service / Output ES control / bus0 / Discharge Control less than 60

On-Expression-discharge.png
  • Add expression for OFF:  ES Control Service / Output ES control / bus0 / Discharge Control greater than 95 and capacity greater than 10% (delay 200 sec).

Off-Expression-discharge.png

Step 6) Connection between Logger V2, Microcare Inverter and MPPT. 


*Please make sure that the Microcare devices are ordered with lithium-Ion interface 4 pin socket.

Microcare-diagram-Solar-MD-relay-872x102

Connection diagram Solar MD Logger V2 relays and Microcare MPPT and inverter

 

Note: On the 100A Microcare MPPT the 4 pin lithium-Ion interface connector is located on the bottom of the MPPT.

 

The standard settings are 90% battery Depth of Discharge.
 

Contact our Support team for further information.