Texdrives | Application in Ring Frame

TEXDRIVE for ring frame / spinning frames has been designed to suit textile environments, featuring a totally-enclosed inverter, a speed / time programmer, line side AC reactor, Pneumofil interlock, and bypass facility. This ensures superior performance resulting in significant improvement in product quality and productivity.

The microprocessor based AC variable speed drive, controls the speed of the Ring Frame main motor steplessly and smoothly. It generates different speed-time patterns needed for optimum spinning time and reduction of wastage. Test prove that Texverter gives 7-10% increased production over conventional methods, and dramatically improves yarn quality.

$Tex Drive$

$tex-drive-3$

$Tex Drive$

Operation

Variable speed operation of the motor is carried out by changing the frequency of the inverter, depending on the preset speed – time pattern.
The speed and time are programmed in the pattern generator. Each pattern has 16 sections. Speed and time are programmed independently through 16 keys on the keyboard.
The maximum time duration for the entire pattern is 2880 minutes.
The maximum motor speed which can be programmed is 9999 RPM.

Texdrive - Configuration

Inverter
Line side AC reactor
Bypass facility & Control relays
Pneumofil motor supply and Interlock
Pattern generator for speed and time setting
Thermal overload relay for main motors as well as Pneumofil motor
Inverter/Bypass selector switch
Facility to connect start/stop push buttons on the machine
Auto/Manual selection
Facility for indicating End Of Cycle
Auto stopping after End Of Cycle time
Noise/Surge suppressors
Lamp to Indicate drive trtp and spindle trip
Start/stop push buttons
Inverter reset push button
Pattern reset push button

Advantages

Optimum speed to be obtained depending on yam number count, bobbin type and fiber material.
Reduced thread breakage on startup and full bobbin high speed operation permissible.
Eliminates use of power factor correcting capacitors since Inverter power is almost at unity power factor.
Single motor can be used for all operations, to achieve any required speed, thus eliminating the need to change pulleys etc.
By programming time characteristics, full automation of the machine may be achieved as no further manual intervention during spinning, is required,
Increased machine fife due to soft start (smooth and jerk free), soft and fast over current protections.
Since the starting current of the motor is only 100% instead of 600%, supply voltage dips and electrical stress on the supply system are eliminated.
No moving parts are used, reducing maintenance.
Motor control switch gear is totally eliminated.
Pneumofil motor supply and Interlock is provided, eliminating need for separate control switch gear.
Pattern generator with 6 digit, seven segment display indicates speed and time elapsed.
Inverter with single card’construction.
Memory function stores the instantaneous speed and timing data before stoppage due to intermediate stop or power failure. On restarting, the speed and time will immediately return to pre-stoppage settings.

Technical Specification

Type	20	40	50	60
Applicable Motor output HP (kW)	20 (15)	40 (30)	50 (37)	60 (45)
Capacity (kVA)	22	44	55	66
Output Current	29	58	73	87


Input Ratings	Power Supply Allowable Variation	3 Phase, 415v, 50Hz Voltage: +/-10% Frequency: +/- 5% Imbalance in power supply 3% Or Less
Output Ratings	Output Voltage Output Frequency Overload Capacity	3 Phase, 415V 50/60/100/120/150/180/200/240Hz 150% of rated current for 1 min
Control Specification	Control System Freq. Control Range Torque boost Accel./Decel./time	Sinusoidal Wave PWM 2 to 240 Hz 16 selectable modes 0.1 to 200 Sec (Independently adjustable)
Protection	Stall Prevention	When the Motor current reaches the maximum limit on accel./decel., the frequency change Is Suppressed, so preventing OC/OVtrip
	Inverter trip and error messages	Overvoltage (OV), Undervoltage (LU), Over Current, Inverter heatsink over heating/ external thermal overload relay trip (OU), Electronic thermal overload relay trip (OL2), CPU error (Err3) ground fault for output terminals.
Inverter Indication	7 segment Digital Display	Actual frequency setting data (function and data codes)
Speed Time Pattern Generator Data	Speed-Time Pattern	16 programmable speed-time patterns
	No. of sections in each pattern	Each pattern can be programmed for 16 sections
	Maximum cycle time	48 hours
	Resolution	One minute
Pattern Generator Indication	6 Digit / 7 Segment Digital display	Motor Speed (RPM), Pattern data CPU error, Time elapsed in the cycle (Minutes)
Memory Function		Data storage when intermediate stop occurs due to trouble or manual stop or power Interruption. On restarting, the speed and time will immediately return to the settings before stoppage.
Others	External Output Signal	End of cycle signal (1 from C, 230V AC, 2A)
	Auto/Manual	Auto/Manual selections provided inside the panel. In Auto mode, control will be through pattern generator and In Manual mode the control will be through Inverter.
	Bypass Facility	Bypass facility is provided to bypass Inverter.
	Pneumofil Motor Control	Supply for the pneumofil motor and Interlock with Inverter is provided. i.e. Inverter will not start unless pneumofil motor starts.
	Thermal Overload Relay	Thermal overload protection for main spindle motor In bypass mode and for pneumofll motor is provided.
	Front Panel Indication	Power ON , Spindle trip, Pneumofil motor trip. Pattern generator 7 segment LED display for speed and time. Inverter 7 segment display.
	Front Panel Controls	Inverter Reset, Inverter ON/OFF, pattern reset push buttons.

Advantages of POWERMAG TEXDRIVE over Conventional Methods

Reduced thread breakage on start up and full bobbin high speed operation permissible
Eliminates use of power factor correcting capacitors since AC drive power is unity power factor
Single motor can be used for all operations, to achieve any required speed, thus eliminating the need to change pulleys etc.
By programming length characteristics, full automation of the machinery may be achieved as no further annual intervention during spinning is required
Increased machine life due to soft start
Since the starting current of the motor is only 100 % instead of 600 %, supply voltage dips and electrical stress on the supply system are eliminated
Memory function stores the instantaneous speed and timing data before stoppage due to Intermediate stop or power failure. On restarting, the speed and lenth will Immediately return to pro-stoppage settings
Additional feature to increase the motor rpm more than the name plate rated speed

Other Standard Features

Length based spindle speed selection
Percentage based spindle speed selection
Time based spindle speed selection
Facility to program 16 steps of spindle speed
Speed pattern can be programmed for 3 different counts
Set spindle speed is maintained thought the Doff
Uniform hanks in production
All the machine parameters can be viewed in the alpha numeric lines LCD display
Real time clock is provided
Shift time setting and auto shift changing facility
Display Shows
- Spindle speed in 5 digits
- Production in hanks (Shift wise and Total)
- Production rate (Delivery rate mfrs / min)
- TPI and TPM
- Run time, Down time
- Present running step, length & shift
- Motor shaft rpm
Compulsory slow speed selection time
Auto switch ON from compulsory slow
Power ON delay time & delay speed in rpm selection facility
Pre – Doff indication
Programmable Acceleration / Deceleration time
Due to machine maintenance or any other reason machine is stopped, the elapsed length is in memory to complete the set length
ON LINE analysis through computer net working
Password protection to avoid unauthorized settings

YASKAWA DRIVE WITH INBUILT RING FRAME SOFTWARE IS DESIGNED FOR ENHANCED OPERATION OF SPINNING MACHINE

Built-in Software
Textile Terminology
Smooth speed & length profile
Centralized monitoring system
Low cost system – No External PLC
No Sensors – Reduced Maintenance

Benefits
Provides the smooth operation of the yarn winding in spinning mills and reduce the yarn breakages.
4% to10% energysaving depending upon mills process and speed pattern setting.
On-line Controlling and monitoring of parameters & trends of the Textile production parameters.
Production data such as Spindle Speed, TPI, Delivery speed, Hank , completed length are displayed.
24 steps doff cycles provides smooth speed & length profile improves the productivity.
Smooth start during power failure or maintenance job with less breakages of the yam.

CUSTOMIZED SOFTWARE’S FEATURES & BENEFITS

Monitor Machine Run time and down time
Graphical view of the energy comsumtion data & production data
Password protection to prevent unauthorised access
Machine control and Interlock with Pneumafil Motor control
Energy saving & production data can be monitored for each shift wise, day wise & weekly
Shift time setting and auto shift change facility

YASKAWA OFFERS WITH IPM (IE4) - SUPER PREMIUM EFFICIENCY MOTOR

Energy Savings with PM Motor - Reduced Carbon Footprint and Running Costs

The SPRiPM package is a plug-and-play combination of an inverter drive teamed up with a permanent magnet motor that exceeds IE4 efficiency requirements and provides premium efficiency even in partial load conditions. Thus SPRiPM opens new potential for saving energy in pump, fan, or other variable torque applications that still commonly use IE1 and IE2 motors.

Texdrives – Application in Ring Frame / Spinning Frames