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Grundlast X

The Grundlast X controller is the perfect solution in connection with up to 4 solar panels. It can save the energy in a 24 Volt batterypackage and the energy can be used when ever it will be need. An optional balancer unit for Innopower 60 Ah and 100 Ah LiFeMnPo4 is available for the Grundlast X. The power to the inverter can be adjusted and fixed up to 250 Watt. A rs485 interface head for the Easymeter Q3D smartmeter is delivered together with the Grundlast X as well. If an Easymeter is present you can control the power to the inverter with the indicated power values of the Easymeter. For example: If you have a power consumption of 200 Watt in your home, the Easymeter will "tell" the controller the 200 Watt and the Grundlast XGrundlast X will controll the power to the inverter until the inverter will deliver 200 Watt. The result is, that the Easymeter Q3D will indicate something around zero Watt and virtual no energy will feed in the Grid or will used from the grid. The Grundlast X is optimized in connection with 60 cell modules what are cost effective and highly available. Some parameters like day or night control, charge - and discharge voltages etc could be adjusted. An adjustable 10 Ampere elecronic switch can switch additional external devices, depending of the battery status.

The Grundlast X controller is a cost effective energy storage solution for small solar fields and some devices can be cascaded to a complete house storage system.

Manual (pdf)

Schematic (pdf)

Board layout (pdf)

Metal housing (dxf)

Software (c)

UVP 498,- without interface head

Q3D reader 36,-

8 Balancer units 195,-

Dimensions 270 mm wide x 140 mm width x 70 mm height
Max. charge current
40 Ampere
Max. discharge current
12 Ampere
Case 1,5 mm steel
Input from solar panel
30 - 45 Volt
MPP output to inverter
22 - 29 Volt
about 95 %
Connectors 6 x Phoenix 4 qmm, 2 x 6 mm supply clamp,
2 x RJ45 for rs485 head
Temperature range -10° to 50°C
Hum 10% bis 90% RH (not condensated)

Grundlast X:

4 Panel
5 Panel
Balancer option for  Innopower LiFeMnPo4:Balancer