VIGNAN ONS INJECTION MOULDING MACHINE CONTROLLER ONS 13:22

The Vignan ONS is a specialized Programmable Logic Controller (PLC) or dedicated microprocessor-based controller designed specifically for the automation and operation of injection moulding machines. It is the central “brain” that controls every aspect of the moulding process, from injecting plastic into a mould to ejecting the finished part.

Key Features & Specifications

• Manufacturer: Vignan (An Indian company known for manufacturing injection moulding machines and their control systems). The “ONS” is likely their model series for a controller.

• Type: Industrial Machine Controller. This is not a general-purpose PLC; it is highly specialized hardware and software built for one task.

• Core Function: To automate the complex cycle of an injection moulding machine. This includes controlling:

  • Injection Unit: Screw rotation, injection speed and pressure, holding pressure.

  • Clamping Unit: Mold open/close, clamping force, ejector operation.

  • Temperature Control: Precise PID control of multiple heating zones on the barrel and the mould.

  • Timers & Counters: Managing cycle times, shot counts, and production quotas.

• User Interface: The controller would typically pair with a separate operator panel (often a touchscreen or keypad with a display) that allows the operator to input recipes (setpoints for temperature, pressure, time, position) and monitor the machine’s status.

• Inputs/Outputs (I/O): It has numerous connections for:

  • Inputs: Sensors (temperature, pressure, position, limit switches).

  • Outputs: Actuators (solenoid valves for hydraulic functions, motors, heaters, alarms).

What is it used for? (Purpose)

This controller is used to:

• Automate Production: Run complex injection moulding cycles repeatedly with high precision and consistency.

• Ensure Quality: Maintain exact parameters (temperature, pressure, speed) to produce identical plastic parts every cycle.

• Monitor Machine Health: Provide diagnostics and alarm messages for faults (e.g., overheating, low pressure, motor failure).

• Store Recipes: Save settings for different products/moulds, allowing for quick changeovers.

Who is this for? (Ideal User)

This is an extremely specialized component for:

• Industrial Maintenance Technicians and Engineers who work specifically on Vignan brand injection moulding machines.

• The Owner of a Vignan ONS Injection Moulding Machine with a faulty controller who needs a direct replacement.

• Automation Specialists with deep knowledge of legacy machine controls (though a machine-specific controller is less universal than a standard PLC).

Critical Considerations for a “USED” Unit

1. Absolute Compatibility: This controller will only work with the specific model of Vignan injection moulding machine it was designed for. It is not a universal part.

2. Configuration/Software: It likely contains machine-specific firmware and parameters. A used unit may need to be reprogrammed with the correct machine software and calibrated, which requires specialized knowledge and software tools from Vignan.

3. Unknown History: As a used electronic component from a harsh industrial environment (with heat, vibration, and potential hydraulic fluid leaks), its reliability is not guaranteed. Components can be degraded.

4. I/O Modules: The controller may consist of a central processing unit and several additional I/O modules. The listing must be checked to confirm what is included.