Dynamic Load Management EVC2: Difference between revisions
| (2 intermediate revisions by 2 users not shown) | |||
| Line 33: | Line 33: | ||
|} | |} | ||
[[File:DLM smart meter asset.png|left|278x278px]] | [[File:DLM smart meter asset.png|left|278x278px]] | ||
Just like the Modbus RTU version - the primary device can have a smart meter / CT clamp connected to it for dynamic energy calculations. | Just like the Modbus RTU version - the primary device can have a smart meter / CT clamp connected to it for dynamic energy calculations. | ||
Both Modbus RTU and network meters (TCP/IP) are allowed in this setup. | Both Modbus RTU and network meters (TCP/IP) are allowed in this setup. | ||
| Line 55: | Line 57: | ||
It is very important to set ''max power from grid'' parameter correctly in the '''PRIMARY''' charger if you want to use DLM. This parameter shows how much current you have in the circuit you want to balance. That means you have to set all available amperes. | It is very important to set ''max power from grid'' parameter correctly in the '''PRIMARY''' charger if you want to use DLM. This parameter shows how much current you have in the circuit you want to balance. That means you have to set all available amperes. | ||
If | If a lower current is set in the primary charger, DLM might not work correctly and the chargers might not even start the charging process. | ||
For the secondary chargers, this parameter is not as critical. It is advisable to set it to a maximum of 16 A (for 11 kW chargers) or 32 A (for 7.4/22 kW chargers). | For the secondary chargers, this parameter is not as critical. It is advisable to set it to a maximum of 16 A (for 11 kW chargers) or 32 A (for 7.4/22 kW chargers). | ||
| Line 62: | Line 64: | ||
=== Primary Device Configuration === | === Primary Device Configuration === | ||
The first thing would be to select the '''primary''' device that would control the rest of the group communication protocol between the | The first thing would be to select the '''primary''' device that would control the rest of the group communication protocol between the primary-secondary and primary-meter. | ||
It should only be enabled for one charger per group only, the primary charger will handle all the calculations, establish communication with the smart meter and control whole group (maximum group size is | It should only be enabled for one charger per group only, the primary charger will handle all the calculations, establish communication with the smart meter and control the whole group (maximum group size is 21 devices). | ||
[[File:DLM_primary.png|alt=DLM primary|frameless|595x595px]] | [[File:DLM_primary.png|alt=DLM primary|frameless|595x595px]] | ||
This setting | This setting enables the charger as the primary charger and allows to change the settings that will affect the whole group: | ||
1.'''"Primary device"''' – Confirms that this is the primary device that will control the group | 1.'''"Primary device"''' – Confirms that this is the primary device that will control the group | ||
| Line 86: | Line 88: | ||
=== Advanced settings === | === Advanced settings === | ||
Most of the time, these settings will be left at their default values. Advanced settings are only adjusted on special occasions. | |||
1. '''"Phase connected"''' – detected automatically | 1. '''"Phase connected"''' – detected automatically | ||