Scenario
In electric vehicle (EV) manufacturing, formation and grading is a crucial step for lithium battery cells. It involves controlled charging/discharging cycles to activate electrochemical performance and assess cell consistency. Precision, automation, and safety are key.
System Configuration
ARMxy Edge Controller – Serves as the central processing unit
Y-Series AI Module – Monitors individual cell voltages (-10–10V range)
X-Series DO Module – Controls charging/discharging circuits
Implementation
The Y-AI module continuously scans voltage levels of each battery cell with high-resolution input.
An OpenPLC program performs real-time comparison between cells and triggers charge balancing actions.
The X-DO module controls relays or contactors to safely interrupt abnormal charging loops in case of voltage deviations.
Key Benefits
✅ Automated test sequencing based on real-time data
✅ Voltage balancing logic built with open-source OpenPLC for flexible adjustment
✅ Remote Excel report generation for quality traceability
✅ Space-saving wiring with Y-series high-density analog input board — saving up to 90% panel space
This solution offers a customizable, cost-effective, and scalable platform for lithium battery manufacturers, integrating seamlessly with cloud platforms or MES systems.
