Our company offers a wide range of AC Digital Servo that are simple, fast and reliable electronic components. These are generally used for auto-leveling direct current servos.

Benefits Of AC Digital Servo

¤ Reliable/ Consistence Quality: A modernized monitoring system is provided within the drive to stop the machine, which saves the defective yarn production.

¤ Faster in Response: Rotor inertia of the AC digital servo is small, as they are efficient for correction of peaks & dips.

¤ Speed Monitoring: The tacho installed inside the AC digital servo is used to increase voltage with respect to shaft speed. In AC digital servo the feedback is given through the high-resolution encoders, which ensures that the target speed achieved by the motor.

INTRODUCTION:

We offer a complete automation for paper industries (for speed control and
Torque control for couch, presses, dryers, calender, and pope) by using VFD.
Monitoring the MPM, RPM, LOAD, FREQUENCY, VOLTAGE and POWER for
Individual sections by using HMI (Human Machine interface).

ADVANTAGES:

• Group ON – OFF control
• Individual ON – OFF control
• Drive sequence control
• Individual draw control (speed up and down)
• Take up control
• Pope Tension control
• Monitoring and controlling through HMI & SCADA.

BENEFITS:

With the industrial paper machines drive you get fast start up and the benefits over the whole operational life cycle include.

1. Energy savings
2. Increased Productivity
3. Improved paper quality

The Spinning Control Application Software is a solution for controlling spinning machines
precisely and for preventing yarn breakages. The ACS 800 with its advanced Direct Torque
Control TM allows maximum production and
prevents yarn breakages during startup and
any power losses. The spinning control application program is designed to
run spinning bobbins in ring frame textile machines.

To achieve the best possible form for the doff the spinning sequence should be ideal for a traverse of the yarn. All this is achieved by giving pre-set values for the speed depending on the Doff build-up stage.

Why use Spinning Software?
1. Improved Production
2. No External PLC or Counters required
3. No more Dual Speed Motors
4. Memory to store 4 Speed Time Pattern or
Length Time Pattern for different Yarn Counts
5. Manual Doffing
6. Shiftwise Production calculation
7. Shiftwise Running Time.


Principle of the Spinning Control

The software has been designed to run spinning bobbins in ring frame textile machines with the Speed Time Pattern (STP) for the driving motor. Thanks to the 12 Speed/Time or Length/Time periods and its other functions, it meets the most ring frame machines. The clear instructions make it easy to commission the spinning drive. In addition to the Speed Time Pattern (STP), two other functions can be selected:

1. Shift function adds/subtracts an offset to the speeds set for the STP, facilitating change of material.
2. Wobbulation function keeps the yarn tension below the breaking limit by changing the speed in the critic al area of doff build-up.
3. The software to generate the reference
signals for the drive is in-built in the drive, hence eliminating use of external control device. This brings down the hardware
requirement and hence the cost and increases the reliability.

Improving productivity and yarn quality:

The productivity of a ring frame machine and the quality of the yarn depend directly on the end breaks. Production suffers and quality deteriorates when the number of end breakages is high. The ACS 800 drive together with the Spinning Control software provide a solution to most of the problems, resulting in an unequalled increase in production and flawless quality. The critical control areas for achieving increased Volumes and profits are the bobbin bottom and top where the number of end breakages is very high. The ACS 800 drive helps reduce breakages by using specially designed software for ring frame machines and state-of the- art motor control technology The speed of the motor is increased sleeplessly depending on the ring rail position and the doff build-up stage. This reduces doff time considerably, resulting in increased production volumes and greater profits.

Easy to use:

Unlike other solutions available on the market, the ABB application requires no separate hardware to generate speed patterns, thereby avoiding the common hardware/interfacing problems.Since all production related information is stored in the drive, and the system cannot be tampered with. The production information is available from the drive includes:

1. Average Spindle Speed
2. Machine running time per shift
3. Data storage of Hank and running time percentage of the last three shifts The automatic doff selection makes it easy for the supervisor to program the next doff pattern to be used on completion of the current doff.

Additional Features:

1. Doff end alarm indication – programmable time
2. Auto/Manual selection possible
3. Programmable inputs/outputs – both digital and analogue
4. Alpha numerical LCD display
5. Optional Personal computer interface

ACS800 VFD WITH IPC (Intelligent Pump Control) SOFTWARE:

We also offer installation services for pump applications. The solution provided by us in pump applications are energy efficient and also used for treating of wastewater where liquid is pumped in or out from the storage tank. When the liquid level of the tank rises the pump compensates these changes and pump more liquid out from the tank. When the level of liquid lowers the pump runs at a lower speed. Multipump control is used to operate several pumps together. Each pump is controlled by its own drive with one being adjusted and the rest run at constant speed. This results in smooth control with no pressure peaks.

In older Draw frames for auto-leveling the Direct Current Servos are used . Now in the latest machines most of the OEM’s are using Alternating Current Servo . The electrical technology revolution brings every day a smart development. The Latest updation brings the solutions Simpler, Faster and Reliable. In that range the AC servos are much suitable for the draw frame application. Realizing this all the OEM’s now started using AC Servos. To have the benefit of that in your machine we are here to support you to bring the performance level of your machine to the New Generation machine.

Drawbacks of DC servo:
• Reduced motor reliability
• Regular maintenance
• Motor costly to purchase/repair
• Needs proper encoder feedback
• Reliability of the DC drive .
• Dependability for service is high, Customized drive.

Advantages of AC Servo:
• Fast response
• Self control / endurance of target velocity
• Digital controls ensures trouble free system and fault indication
• High degree of reliability
• Anywhere you can service, because it is a standard product.

HOW YOU ARE BENIFITED? 
• Reliable / consistence Quality – Even for the internal function of the drive and feed backs the monitoring system is provided in the drive to stop the machine, saves the defective yarn production. Example: if brush in the DC motor wares speed varies without notification the THIN and THICK place will produce at the machine.
• Faster in Response - The Rotor inertia of the AC servo is less. Because of that the correction of Peaks and Dips is very effective.