Battery storage (BESS) integration
Utility-scale Pylontech storage under smart control
Pylontech is one of the world's largest lithium battery manufacturers, from residential modules to 1500V utility-scale storage. Voltmasters EMS connects to the Pylontech LEMS controller and turns the battery into an earning asset: market-driven charging and discharging, peak shaving and self-consumption optimisation.
Supported devices
- LEMS (PowerCube-M5A racks)
The LEMS controller with 1500V PowerCube-M5A racks, combined with a separate PCS such as the Sinexcel PWS1-1725KTL-H. A different Pylontech configuration? Send us the type plate.
What the EMS gets out of your Pylontech installation
- Trade on the imbalance market and dynamic prices, quarter hour by quarter hour
- Peak shaving: keep peak power and capacity tariff under control
- Maximise self-consumption together with PV and EV chargers
- Fluvius telecontrol and grid compliance, certification included
- Real-time monitoring with automatic incident detection
Why installers combine Pylontech and Voltmasters
Pylontech's LEMS controller presents multiple PowerCube-M5A racks as a single system, up to thousands of kWh per installation. Voltmasters reads the state of charge, limits and cell diagnostics straight from the LEMS and controls the battery through the paired inverter, aligned with the market, the PV and the site consumption. The Voltmaster Controller runs the optimisation locally, so control stays active even without internet.
How it works
How your Pylontech connects to the EMS
Voltmaster Controller in the cabinet
The industrial DIN-rail controller sits next to the installation and runs the optimisation locally, even without internet.
Connect over the local network
You connect the device following the step-by-step guide in our documentation. We assist with commissioning on your first project.
Configure and go live
The installation appears in the platform: dashboards, control and monitoring are active right away.
FAQ
Questions about the Pylontech integration
Which Pylontech systems does Voltmasters support?
Battery systems behind the Pylontech LEMS controller, such as 1500V PowerCube-M5A racks. The battery pairs with a separate PCS, for example the Sinexcel PWS1-1725KTL-H.
What does the EMS read from the Pylontech LEMS?
The state of charge, state of health, voltages, currents, charge and discharge limits and cell diagnostics of the full system, directly over Modbus TCP.
Does the system keep working when the internet drops?
Yes. The Voltmaster Controller runs the optimisation locally in the cabinet. If the connection drops, control, peak shaving and the safety limits simply stay active.
How do I connect a Pylontech battery to the EMS?
The Voltmaster Controller connects to the device over the local network. The step-by-step instructions are in our documentation, and as a certified partner we guide your first commissioning from start to finish.
Ready to make your first project pay off?
Tell us about your next installation. We will show you the platform, help you build the business case and guide you from first quote to certification.