Danfoss VLT AutomationDrive FC 360 Скачать руководство пользователя страница 7 | Manualshive

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Danfoss VLT AutomationDrive FC 360 Скачать руководство пользователя страница 7

3 Center Winder Control

3.1 Introduction

Center winders are widely used in the processing of
materials such as cloth, plastics, paper, and sheet metal.
Center winder control is to maintain a stable tension on
the line or web of the material during the winding process.

Instable tension may cause physical deformities of the
material. Because the diameter of the roll changes
constantly, the winding or unwinding speed must be
adapted to maintain a stable tension.

Control principle

The center winder control in FC 360 uses a speed-based method with tension feedback. The tension feedback is provided
by either a load cell or a dancer.

Illustration 3.1

shows the control diagram of a center winder system.

Illustration 3.1 Control Diagram of a Center Winder System

The center winder control calculates the roll diameter and feed the frequency converter with an open-loop speed reference.
A PID amplifier compares the actual tension feedback with the tapered tension setpoint, and generates a speed signal
based on the error. The speed signal is aggregated with the speed reference signal to determine the actual winder speed.

Roll

diameter

=

core

diameter

Line

speed

Winder

speed

This calculation needs to be performed fast, because the diameter of the roll changes faster when the roll is near the core. If
the actual diameter changes faster than the diameter is calculated, the open-loop reference speed lags too far behind the
required speed, and the tension PID will need to make up too much of the difference.

The tension PID updates every 16 ms. The calculated diameter is used by both the open-loop reference and as an input to
the tension PID.

Center Winder Control

VLT

®

AutomationDrive FC 360

6

Danfoss A/S © 11/2014 All rights reserved.

MG06E102

3

3

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Содержание VLT AutomationDrive FC 360

Страница 1: ...MAKING MODERN LIVING POSSIBLE Application Guide VLT AutomationDrive FC 360 www danfoss com drives...

Страница 2: ...4 3 Center Winder Control 6 3 1 Introduction 6 3 2 Application Requirements 8 3 3 Wiring and Control Process 9 3 4 Parameters for Center Winder Control 11 4 Positioning Control 14 4 1 Introduction 14...

Страница 3: ...welcome Table 1 1 shows the document version and the corresponding software version In the frequency converter read the software version in 15 43 Software Version Version Remarks Software version MG0...

Страница 4: ...cross reference link parameter name All dimensions are in mm inch indicates default setting of a parameter Introduction Application Guide MG06E102 Danfoss A S 11 2014 All rights reserved 3 1 1...

Страница 5: ...DED START When the frequency converter is connected to AC mains DC supply or load sharing the motor may start at any time Unintended start during programming service or repair work can result in death...

Страница 6: ...he procedures in this document CAUTION INTERNAL FAILURE HAZARD An internal failure in the frequency converter can result in serious injury when the frequency converter is not properly closed Ensure th...

Страница 7: ...inder control calculates the roll diameter and feed the frequency converter with an open loop speed reference A PID amplifier compares the actual tension feedback with the tapered tension setpoint and...

Страница 8: ...er Winder speed Line Speed Speed Set Point _ MOC 130BD801 10 Illustration 3 2 Center Winder Control with FC 360 The frequency converter adjusts the operation of the winder based on the states of a rol...

Страница 9: ...load cell is used it needs to be calibrated for a either a 0 20 mA or 0 10 V signal for 0 to maximum tension If a dancer is used the calibration should be 0 20 mA 0 10 V for bottom to top of the dance...

Страница 10: ...eter Tightening the slack web 1 Give an appropriate jog speed by setting parameter 37 26 Winder Jog Speed 2 Set parameter 37 57 Tension On Off to 0 Off 3 Set parameter 37 54 Winder Jog Reverse or para...

Страница 11: ...ameter 37 26 Winder Jog Speed 1 Parameter 37 27 TLD Low Limit 0 Parameter 37 28 TLD High Limit 90 Parameter 37 29 TLD Timer 1 Parameter 37 30 TLDOnDelay 1 Parameter 37 31 Diameter Limit Detector 90 Pa...

Страница 12: ...ction 0 0 100 37 28 TLD High Limit Set the high limit for the tension limit detection Range Function 0 0 100 37 29 TLD Timer Sets the time within which the tension must exceed the high or low tension...

Страница 13: ...to the preset value when the user changes either the tension or taper setpoints This ensures stability during step changes in setpoints Range Function 0 1 0 1 1 37 43 Diameter Calculator Min Speed Se...

Страница 14: ...eed set in parameter 37 26 Winder Jog Speed Option Function 0 No Function 1 Jog reverse 37 55 Winder Jog Forward Jogs the winder in forward winding direction at the speed set in parameter 37 26 Winder...

Страница 15: ...ignal Type and 17 11 Resolution PPR according to the specifi cation of the actual encoder used MCB103 Set 17 50 Poles 17 51 Input Voltage 17 52 Input Frequency and 17 53 Transformation Ratio according...

Страница 16: ...ng If the go to home position command is issued by digital inputs or PROFIBUS the frequency converter sets the current position as home position 1 Forced manual mode In this mode homing is conducted p...

Страница 17: ...e positioning process as follows Use different combinations of index bit values to select the desired position Switch both digital input 19 and 27 off to select position 0 Switch digital input 19 on a...

Страница 18: ...t Position Reached 1 3 Error Occurred 1 4 Mechanical Brake Output 1 7 Positive Hardware Limit 1 8 Negative Hardware Limit 3 Actual Position MSB 4 Actual Position LSB 5 Position Error Status Table 4 2...

Страница 19: ...6 72 Terminal 45 Digital Output 171 Target Position Reached Parameter 33 41 Negative Software Limit 500 000 UU Parameter 33 42 Positive Software Limit 500 000 UU Parameter 33 43 Negative Software Limi...

Страница 20: ...00 ms 3 2000 ms 4 7 5000 ms Not used in this example Parameter 33 47 Target Position Window 20 UU Set to a value based on the actual situation of the application PID Settings 7 33 Process PID Proporti...

Страница 21: ...14 Jog Functions are described in parameter group 5 1 Digital Inputs 32 Pulse time based 5 14 Terminal 32 Digital Input Option Function 0 No operation Functions are described in parameter group 5 1 Di...

Страница 22: ...t via the serial communication port 27 Torque limit stop Use for performing a coasted stop and frequency converter in torque 5 40 Function Relay Option Function limit condition If the frequency conver...

Страница 23: ...Logic Rules If Logic Rule 0 in SLC is TRUE the output goes high Otherwise it goes low 71 Logic rule 1 See parameter group 13 4 Logic Rules If Logic Rule 1 in SLC is TRUE 5 40 Function Relay Option Fun...

Страница 24: ...7 Bus control timeout Off 56 Heat sink cleaning warning high 60 Comparator 0 6 72 Terminal 45 Digital Output Option Function 61 Comparator 1 62 Comparator 2 63 Comparator 3 64 Comparator 4 65 Comparat...

Страница 25: ...1 Running reverse 165 Local ref active 166 Remote ref active 167 Start command activ 168 Drive in hand mode 169 Drive in auto mode 170 Homing Completed 171 Target Position Reached 172 Position Control...

Страница 26: ...r Range Function 1 1 65535 32 67 Max Tolerated Position Error Range Function 2000000 1 2147483648 32 80 Maximum Allowed Velocity Range Function 1500 RPM 1 30000 RPM 32 81 Motion Ctrl Quick Stop Ramp R...

Страница 27: ...0 0 65535 34 04 PCD 4 Write For Application Range Function 0 0 65535 34 05 PCD 5 Write For Application Range Function 0 0 65535 34 06 PCD 6 Write For Application Range Function 0 0 65535 34 07 PCD 7 W...

Страница 28: ...34 56 Track Error Range Function 0 2147483647 2147483647 Positioning Control Application Guide MG06E102 Danfoss A S 11 2014 All rights reserved 27 4 4...

Страница 29: ...Positioning Control VLT AutomationDrive FC 360 28 Danfoss A S 11 2014 All rights reserved MG06E102 4 4...

Страница 30: ...L Leakage current 5 Line speed 8 Load sharing 4 Logic input 8 O Over tension 9 P PELV 5 Q Qualified personnel 4 S Safety 5 Software version 2 T Taper setpoint 8 Tension and taper setpoint 8 Tension f...

Страница 31: ...ucts already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed All trademarks in this material are property of the resp...

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