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Automation and digital product integration providerPackaging Industry Electronic Equipment 3C Equipment Semiconductor Industry Machine Tool Industry Photovoltaic Equipment Lithium Battery Equipment SCADA
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Automation and digital product integration provider
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Automation and digital product integration provider
Stringer Machine
Equipment Intro & Key Metrics
PV stringer (stringer integrator) is key equipment for auto-series connecting solar cells via ribbons. Its process covers loading and positioning, wire drawing and welding, string cutting and inspection, enabling efficient, precise cell string manufacturing.
Process & Workflow Diagram
Industry Pain Points
Complex Wire Drawing / Cutting Process
The wire drawing and cutting algorithm must calculate different wire lengths for odd and even strings, requiring extreme precision in length and positioning.
Strict Welding Temperature Control
Ribbon welding requires precise temperature control and fast PID response to prevent cell damage and efficiency loss.
Motion Control & Vibration Suppression at High Cadence
High cadence and yield requirements: maintaining low breakage and a high welding rate during high-speed motion is a major motion control and vibration suppression challenge.
Fragmented Process Data, Weak Traceability
Wire drawing, welding and cutting stations run as isolated process steps; cycle counts and process data are not centrally logged, making yield analysis and traceability slow.
FLEXEM Solution Architecture
Built on FL6 series PLC and FE6156H HMI (5.6″ 4:3 TFT LCD, 1024×600, RS485/UART linked to the PLC), the architecture drives the wire drawing traverse with two FV5-E3 linear servo drives and uses FV5-R3 / FV5-E3 series servo drives (50-750 W) for loading push-up, loading axes, pickup translate and pickup lift. Dedicated process function blocks — FB_StringLine, FB_CycleCount and FB_Description — deliver high-cadence string drawing and welding with high positioning accuracy.
Core Advantages
Dedicated Process Algorithm, Simplified Operation
Built-in wire drawing and cutting process: the function block auto-calculates wire length for odd and even strings from the cell count input, simplifying programming for users.
Linear Servo Drive, High Precision & Efficiency
The wire drawing traverse uses FV5-E3 linear servo drives, meeting high cadence requirements while ensuring high positioning accuracy.
Efficient Automation & Motion Synergy
Combined with the FL6 series PLC, the architecture provides efficient automation and motion control, solving high-speed motion challenges.
Process Data Counting & Traceability
FB_CycleCount and FB_Description function blocks log cycle counts and process data on the FE6156H HMI, supporting production traceability and yield analysis.
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