Dynamic Load Balancing

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DYNAMIC LOAD BALANCING

TeltoCharge have the ability to communicate with dedicated smart energy meter and regarding to its readings, adjust used electrical power. Such functionality allows to protect house electrical grid from overload in peak hours and optimize energy usage to meet user habits. Smart energy meter should always be installed in source electrical cabinet as showed below.  

Smart meter and TeltoCharge communication

Smart meter and TeltoCharge communicates via Modbus RS-485 protocol. In order to achieve smooth communication, it is recommended to use communication cable according to this protocol. Check example below

TeltoCharge DLB CableExample.png

Note: Communication cable should be integrated with power cable.

Supported energy meters

In order to strive for wider applicability and compatibility, we constantly test and add new supported devices into list. All of the supported Energy meters and schematics how to connect them are provided bellow.  

TeltoCharge supported energy meter list:

Energy meter manufacturer Type Supported model for Dynamic load balancing 1/3 phase Datasheet
Carlo Gavazzi series 1 EM111
EM111-DIN AV8 1 X S1 PF B (MID CERTIFIED) 1 phase
EM111
EM111-DIN AV8 1 X S1 X (NOT MID CERTIFIED)
ET112 ET112-DIN AV0 1 X S1 X (NOT MID CERTIFIED) ET112
Carlo Gavazzi series 3 EM330
EM330-DIN AV5 3 H S1 PF B (MID CERTIFIED) 3 phase EM330
EM330-DIN AV5 3 H S1 X (NOT MID CERTIFIED)
EM340
EM340-DIN AV2 3 X S1 PF B/B70 (MID CERTIFIED) EM340
EM340-DIN AV2 3 X S1 X (NOT MID CERTIFIED)
ET330 ET330-DIN AV5 3 H S1 X (NOT MID CERTIFIED) ET330
ET340 ET340-DIN AV2 3 X S1 X (NOT MID CERTIFIED) ET340
Carlo Gavazzi series 5 EM530
3 phase EM530
EM540
EM540

RS485 parameters for energy meter

Note: Energy meter parameters should match EVSE default parameters.

RS485 parameter EVSE default parameter value (non-configurable)
Modbus adress 1
Baud rate 9600
Parity none
Stop bits 1

Carlo Gavazzi meters wiring:

Note: All of the Color-coding is strictly exemplary and is used simply to differentiate between different connection points. Different communication cables can have differently coloured wires. Connect them according to used inventory.  

3rd and 5th series to TeltoCharge connection
TeltoCharge DLB CarloGavazzi 3phase.png
1st series to TeltoCharge connection
TeltoCharge DLB CarloGavazzi 1phase.png

Powering the energy meter

To correctly connect smart energy meter to power source, it is recommended to use manufacturers installation manuals.