Lakshmi Electrical Construction

Speed Frame PLC Conversion System – Intelligent Automation for Roving Frames

Our Speed Frame PLC Conversion System is designed to modernize conventional speed frame (roving frame) machines by replacing outdated relay-based or mechanical control systems with a fully automated PLC and HMI-based solution. This upgrade delivers precise drafting control, stable roving quality, improved production efficiency, and enhanced operator safety, making it ideal for spinning mills aiming to optimize roving performance.

The PLC conversion ensures accurate control of drafting, flyer speed, bobbin build, and tension regulation, resulting in consistent roving and reduced end breaks.

Key Features of Speed Frame PLC Conversion System

• Advanced PLC-based control architecture

• User-friendly HMI touchscreen interface

• Precise drafting and speed synchronization

• Accurate bobbin building and lift control

• Integrated safety interlocks and alarm management

• Real-time monitoring and fault diagnostics

• Energy-efficient operation using VFDs and servo drives

• Reduced wiring and simplified maintenance

Speed Frame Machine Parts Covered in PLC Conversion

Our PLC conversion system integrates and controls a wide range of speed frame machine parts, including:

Drive & Motion Control Components

• Main Drive Motor

• Drafting System Drive Motor

• Flyer Drive Motor

• Bobbin Drive Motor

• Lifting Motor

• Servo Motor for Bobbin Building

• Variable Frequency Drives (VFDs)

• Encoder Feedback System

Drafting & Roving Formation Components

• Feed Roller Assembly

• Drafting Roller System

• Apron Assembly

• Pressure Arm System

• Flyer Assembly

• Bobbin Rail and Spindle System

Electrical & Automation Components

• PLC Controller (Siemens / Delta / Schneider options)

• HMI Touch Panel

• Electrical Control Panel with MCC Section

• Power Supply Modules

• Relay and Contactor Modules

• Proximity Sensors

• Limit Switches

• Safety Relay Modules

• Emergency Stop Circuit

Monitoring & Safety Components

• Roving Break Detection Sensor

• Bobbin Full Detection System

• Lift Position Sensors

• Tension Monitoring System

• Overload Protection System

• Alarm and Status Indication System

Benefits of PLC Conversion for Speed Frame Machines

• Improved roving quality and uniformity

• Reduced end breaks and waste

• Stable operation at higher speeds

• Faster fault detection and troubleshooting

• Lower energy consumption

• Enhanced operator safety

• Extended machine service life

Applications

• Cotton and Blended Roving Frames

• High-Speed Speed Frame Machines

• Spinning Preparatory Lines

• Modernization of Old Speed Frame Machines