Technical App Notes for LINK SPW Speed Programmed Winder

7/30/2019 Technical App Notes for LINK SPW Speed Programmed Winder

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SPW3 SpeedProgrammedWinder

ApplicationHandbook

Copyright 2000 by SSD Drives, Inc.

All rights strictly reserved. No part of this document may be stored in a retrieval system, or transmitted, in any form of by any means to persons not employed by a SSD Drives company without writtenpermission from SSD Drives, Inc.

Although every effort has been taken to ensure the accuracy of this specification, it may be necessary, without notice, to make amendments or correct omissions in this document. SSD Drives, Inc. cannotaccept responsibility for damage, injury, or expenses resulting therefrom.

Printed in the United States of America HA355297 Issue 3


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SPW3 Speed Programmed Winder Warn. 1

!

WARNING

Only qualified personnel who thoroughly understand the operation of this equipment and any associated

machinery should install, start-up, or attempt maintenance of this equipment. Non-compliance with thiswarning may result in serious personal injury and/or equipment damage.


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APPLICATION HANDBOOK

Contents

SPW3 Speed Programmed Winder Cont. 1

Chapter 1 Introduction

Chapter 2 Description

DIAMETER CALCULATOR............................................................................................................................................................................................................. 2 -

INERTIA COMPENSATION......................................................................................................................................................................................................... 2 -

START STOP........................................................................................................................................................................................................................................... 2

SPEED DEMAND ........... ............ ............ ............ ............. ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............. ............ ............ ...... 2

PID & GAIN PROFILERS.................................................................................................................................................................................................................. 2 -

WEB BREAK DETECTOR........... ............ ............ ............. ............ ............ ............ ............ ............ ............ ............ ............ ............ ............. ............ ............ ............ .. 2

UP TO SPEED DETECTOR............................................................................................................................................................................................................. 2 -

TENSION DEMAND......................................................................................................................................................................................................................... 2 -

Taper.................................................................................................................................................................................................................................................. 2

Stall Tension................................................................................................................................................................................................................................. 2 -

Tension Boost ............................................................................................................................................................................................................................. 2

Tension Demand Ramp......................................................................................................................................................................................................... 2 -

Tension Demand and Dancer Loading....................................................................................................................................................................... 2 - 4

CURRENT MEMORY ...................................................................................................................................................................................................................... 2 -

Chapter 3 Using SPW

Scaling............................................................................................................................................................................................................................................... 590+ and 590 (DC Drive).................................................................................................................................................................................................... 3 -

690+ and 620 (AC Drive)................................................................................................................................................................................................... 3 -

Tension Enable............................................................................................................................................................................................................................. 3

QUICK SET UP ...................................................................................................................................................................................................................................... 3

Connections................................................................................................................................................................................................................................... 3

Inputs......................................................................................................................................................................................................................................... 3 -

Outputs.................................................................................................................................................................................................................................... 3 -

Parameters............................................................................................................................................................................................................................ 3 -

Running Checks .......................................................................................................................................................................................................................... 3 -

Setting Inertia Compensation Using Speed Control........................................................................................................................................ 3 - 3

Inertia Compensations................................................................................................................................................................................................. 3 - Fixed Inertia........................................................................................................................................................................................................................ 3

Variable Inertia................................................................................................................................................................................................................ 3 -

Chapter 4 Function Block Diagram

Appendix A PID CONTROLLER


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Chapter 1 Introduction

SPW3 Speed Programmed Winder 1 - 1

Chapter 1 IntroductionSPW is the solution to closed-loop center winders (with loadcell or dancer trim) to produce constant tension throughout

the roll. It provides the standard features required by a center winder including: Diameter Calculation with diameter

memory and preset, Tension and Taper, PID for tension or dancer position control, Over/Under Winding, etc.

Additional features provide Stall Tension, Tension Boost, Web Break Detection, Current Memory, and Inertia

Compensation. SPW can control unwinds or rewinds for single spindle and turret winders.

The function block can be used with the following SSD Drives AC and DC drives:

590L

590SPL

620L

584SV, 590+, and 690+ with a LINK Techbox

Other LINK solutions are available to meet other common application requirements and are documented by their

individual manuals.


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Chapter 2 DescriptionThis section describes the operation of the functions in the SPW LINK function Block.

DIAMETER CALCULATOR

The roll diameter is calculated by dividing the LINE SPEED by the WINDER SPEED (diameter is always positive and

independent of the polarity of the speeds). The LINE SPEED input should be the actual web speed from the previous

section motor speed (the next section in the case of an unwind). The WINDER SPEED is the spindle motor speed.

Whenever the line is stopped, both the winder speed and line speed are zero. As a result, a preset diameter value (either

Core 1, Core 2 or Ext Diameter) is used on power up and when the PRESET ENABLE is ON. It will be the output value

as long as the minimum speed is not exceeded. Above minimum speed, the calculated diameter is the output. If the

line slows below the minimum speed, the last calculated diameter is used. It will continue to be the output diameter

until the preset diameter is enabled.

MIN DIAMETER is the calculated diameter value at full (100%) line speed and full (100%) winder speed.

The calculated DIAMETER output is filtered. The filter output tracks the diameter when TENSION ENABLE is ON and

Line Speed is above Min Speed, otherwise the diameter is held at its current value.

The diameter filter has a profiled time constant (TC) determined by the winder speed and the filter profiler. The profiler

enables a smaller filter at high line speeds and small cores when the change in diameter is fast and a larger filter at

larger diameters for stability.

The filter profiler has a FILTER MAX TC at 0% winder speed, FILTER MID TC at FILTER MID SPEED, and FILTER MIN

TC at 100% winder speed.

INERTIA COMPENSATION

The SPW function block calculates the torque required to accelerate the mechanical inertia. It is composed of two parts,

fixed and variable inertia. The FIXED INERTIA is the inertia of the motor, gearbox and core. The VARIABLE INERTIAis the inertia of the roll and a WIDTH input is available for setting the web width. The total inertia (Inertia Comp) is

multiplied by the scaled acceleration rate to produce the torque demand and the polarity is set by the OVER/UNDER

selection.

Accelerating a rewind requires additional torque in the same direction as the tension producing torque whereas an

unwind requires accelerating torque in the opposite direction to the tension torque. The Master Ramp function block

supplies the acceleration rate and connects to the RATE input. If the Master Ramp is not being used, the line speed can

be connected to the RATE SP input. The RATE SP input is differentiated to produce a rate.

When the WINDER SPEED exceeds the BASE SPEED the current demand is increased to compensate for the reduced

field flux to maintain constant torque demand. This is not required with the 620L or 690+ Vector drive so the BASE

SPEED parameter should be left at 100% even when an extended speed range is used.

START STOP

The SPW function block includes logic for START, STOP and JOG with a DRIVE START output to the drive. The drive

READY latches the START and resets the START LATCH in the event of a drive fault, program stop, coast stop, or the

STOP input. An M-START input is provided for a maintained start from a PLC or for starting using ConfigEd in Run

time mode.


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2 - 2 SPW3 Speed Programmed Winder

SPEED DEMAND

A simple ramp in SPW uses the LINE SPEED SP or JOG SPEED to calculate the SPEED DEMAND. The ramp time is

determined by the SPEED DELTA which is the percentage change per update. For example, if the LINE SPEED SP

comes from the Master Ramp function block, the update is 100mS. Thus if the SPEED DELTA is set to 2%, the ramp

output will change at 2% per 100mS and would take 5 seconds to change 100%.

The ramped speed is summed with the closed-loop trim from the PID scaled by the range. Range, selected byEXTENSIBLE WEB, is either the RANGE NON-EXTN or RANGE EXTN settings. The combined speed demand is

divided by the diameter to produce the SPEED DEMAND to the drive.

The polarity ofSPEED DEMAND is determined by the OVER-UNDER selection; it is positive for Over, when OVER-

UNDER = True.

The SPEED DEMAND is triggered by the FEEDBACK to the PID; thus there must be a regularly updated signal

connected to FEEDBACK to obtain a SPEED DEMAND output. An update rate of 30 to 50 mS is recommended.

PID & GAIN PROFILERS

The PID provides Proportional, Integral and Derivative control. It supplies the closed-loop trim to the speed demand to

control the web tension.Note. See the SIGNALP::PID function block data sheet in Appendix for the block diagram, transfer

function and functional description of the PID.

The PID calculates an output whenever the FEEDBACK input receives an input. If the PID ENABLE is disabled, the

output is zero.

The Proportional and Derivative terms and the drive speed loop gain via the DRIVE P GAIN output are controlled by

gain profilers.

The gain profilers provide increasing gain as a function of increasing diameter. The Drive P Gain modifies the speed

loop gain to compensate for the increased roll inertia as the diameter increases. The PID Proportional Gain profiles can

vary the PID Proportional Gain as a function of diameter. The Derivative Gain profile can be used with dancer position

control applications to provide damping at large diameters.

Feedback

Overdamped

Critically Damped

Underdamped

%

%

Time

Time

Setpoint

Figure 1 - System Response to a Step-function Input

In each gain profiler, the Min Gain term is a percentage of the Max Gain term. The default Min Gain setting of 100%

provides constant gain, equal to Max Gain, throughout the diameter range. The Exponent term determines how quickly

the gain falls off as the diameter decreases. At the minimum setting of 1, the profiling is linear. At the maximum

setting, 10, maximum gain occurs at maximum diameter and drops of very quickly as diameters decrease.


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Figure 2 - Gain Profiler

WEB BREAK DETECTOR

The web break detector monitors the FEEDBACK signal, comparing it to the WB THRESHOLD setting.

WB THRESHOLD is set just below minimum tension for loadcell feedback or to the dancer slack limit for dancer

feedback. IfFEEDBACK is less than WB THRESHOLD, the diameter is held at the current value and the WEB BREAK

output goes low indicating a web break. WB DELAY sets the web break delay timer that eliminates nuisance trips.

The WEB BREAK output is overridden when STALL ENABLE is enabled.

UP TO SPEED DETECTORThe up to speed detector compares the actual line speed with the winder speed multiplied by diameter. When they are

the same, within the UTS THRESHOLD, the UP TO SPEED output goes high.

TENSION DEMAND

The Tension Demand section modifies the tension setpoint for taper, stall tension, tension boost and a tension demand ramp.

TaperThe Tension Demand can be modified by one of two Taper profiles. Linear Taper linearly reduces the TENSION SP as

the diameter increases. Hyperbolic Taper reduces the TENSION SP more quickly near the core and less as the diameter

approaches the full roll.

Stall TensionStall tension is a reduced tension used when the line is stopped.

When STALL ENABLE is high, the tension demand is STALL TENSION ifSTALL SELECT is Fixed, or STALL

TENSION multiplied by the TENSION SP ifSTALL SELECT is Proportional. For example, if the TENSION SP is 80%

and the STALL TENSION is 50%, then the tension demand at stall is 50% if the STALL SELECT is Fixed or 40% if

Proportional.


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Tension BoostTension boost increases the tension demand when BOOST ENABLE is high. BOOST SELECT has Fixed and

Proportional settings similar to Stall. The fixed or proportional boost is added to the TENSION SP.

Tension Demand Ramp

The Tension Demand Ramp has a TENSION DELTA that sets the rate. The delta is the output change per update wherethe update is the TENSION TICK TIME, which is normally set to 300mS. For example, if the TENSION DELTA is 10%,

TENSION DEMAND can change 10% in 300mS. This setting would require three seconds for a 100% tension change.Tension Demand and Dancer Loading

The TENSION DEMAND output is the tension demand modified by the taper, stall, boost and ramp.

With a loadcell, the TENSION DEMAND is connected to the PID Setpoint for a winder.

With a dancer, the PID setpoint is the dancer position setpoint which will be a fixed value of typically 50% for mid

position. The loading on the dancer sets the web tension. To control the tension, the DANCER LOADING output is

connected via an analog output to an E/P converter that sets the air pressure to load the dancer. The latched TENSION

ENABLE input controls the DANCER LOADING output. It permits two DANCER LOADING outputs to control one

dancer for a twin-turret winder. The TENSION ENABLE for each drive is connected to the other drives OTHER

ENABLE input to switch the control for the dancer. DANCER CAL provides scaling of the DANCER LOADING output

to adjust the desired maximum tension.

CURRENT MEMORY

This function provides short term open-loop tension control by sampling the motor torque and then setting the motor

torque at the memorized value. This can be used during transients or when the closed-loop feedback is temporarily

isolated from the roll such as during a transfer on an unwind.

The motor current (torque for the 620L or 690+) is filtered and fed to a Track and Hold. The current value is held by

MEMORY HOLD or MEMORY ENABLE. MEMORY ENABLE also changes the drive from speed control to torque

control by adding an OVERSPEED to speed demand and setting the current limit clamp to the memorized value.

Current boost is available, either fixed or proportional set by CM BOOST SELECT, enabled by the CM BOOST

ENABLE.The positive or negative current limit clamp is selected by the REWIND-UNWIND and OVER-UNDER selections. When

the Current Memory is not enabled the positive and negative current limits are at the default 200%. The 590L Current

Scaler must be set at 100% to give the correct scaling, but the Main Current limit can be set as required to limit the

maximum current, typically at 125%.

With the 620L or 690+ Vector drive, the POSITIVE CLAMP and NEGATIVE CLAMP outputs connect to the positive and

negative torque limits respectively.

Note. The drive must be set for independent positive and negative clamps. See Chapter 3 for the proper

settings.


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Chapter 3 Using SPW


Chapter 3 Using SPW

BASICS

ScalingLINK uses a value range of -1 to +1, normally displayed as -100.00% to +100.00%. To interface with the drive, a

Speed value of 1 in LINK is equivalent to 120% in the drive and is displayed as 120% in the SPW function block.

Similarly a Current or Torque value of 1 in LINK is equivalent to 200% in the drive and is displayed as 200% in

the SPW function block.

590+ and 590 (DC Drive)The SPW function block controls the Positive and Negative Current clamps (in the current memory mode) in the 590

DC drive and the BASE SPEED parameter sets the compensation for the field range (for the inertia compensation). The

Current Scaler must be set to 100%, as this scales the clamps, but the Main Current limit may be set as required.

BIPOLAR CLAMPS must be enabled.

690+ and 620 (AC Drive)With a 690+ or 620 Vector drive, the SPW function block controls the Positive and Negative Torque Limits.

SYMMETRIC TQ LIMIT must be false. Since torque is controlled directly, the BASE SPEED parameter is left at the

100% default, as additional compensation above base speed is not required. The Main Torque limit and the Current

limit can be set as required.

Tension EnableThe SPW function block has two modes of operation for controlling twin-turret winders.

With the TENSION ENABLE disabled, the drive is speed controlled with the speed compensated by the roll diameter to

provide the roll surface speed matched to line speed. This also provides jog with constant surface speed. In this mode

the diameter can be preset. It is used when the web is not connected to the winder.

When the TENSION ENABLE is enabled and PID ENABLE is enabled, the closed-loop trim PID trim maintains tension

or dancer position. The diameter is calculated as the roll builds up (or builds down for an unwind).

QUICK SET UP

This sections covers a basic single-spindle rewind with loadcell or dancer feedback. It requires the user to have DSD or

ConfigEd configuration software to program the SPW function block and make the connections to the drive as part of a

LINK network.

ConnectionsSee drawing RF354823 for connections and the detailed block diagram.


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Chapter 3 Using SPW


Inputs

Feedback From a dancer or loadcell via an Analog Input with a 30 mS update rate

Line Speed SP From the Master Ramp Output

Line Speed Should be the actual web speed from the previous section motor speed (or the next

section for an unwind)

Winder Speed Spindle motor speed

Rate From the Master Ramp Rate Output

Tension Enable From SPW Start Latch output

PID Enable From SPW Start Latch output

Preset Enable Used to reset the diameter to core (from pushbutton)

Tension SP From the Tension potentiometer

Taper SP From the Taper potentiometer

Start

Stop

Jog

Pushbutton inputs

Ready From the drive ready output

Outputs

Drive Start 590L to Start input slot 52

620L to Start input tag 38

590+ and 690+ Drive Start

Speed Demand 590L to Speed Input 0 slot 2066

620L to Main Spd Spt tag 176

590+ and 690+ Speed Setpoint

Drive P Gain 590L to Speed Loop Prop Gain slot 2130

620L to Speed Loop Prop Gain tag 161

590+ and 690+ Speed Loop P Gain

Aux I Demand 590L to Current Loop Aux current demand slot 2116

620L to Aux Torque Demand tag 559

590+ and 690+ Aux I Demand

Start Latch Connect to Tension Enable and PID Enable inputs

Tension Demand

(loadcell only)

Connect to Setpoint input

Dancer Loading

(dancer only)

Connect to dancer E/P to set dancer tension

Parameters

Min Diameter Core Diameter Full Roll Diameter 100% (for 60 full roll and 6 core, Min

Diameter = 10%

Core 1 Core Diameter Full Roll Diameter 100% (for 60 full roll and 6 core, Core = 10%

Note. All other parameters should be at default values.


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Chapter 3 Using SPW


Running ChecksThis requires ConfigEd run time(SAM) to set and monitor the SPW function block and the drive.

1. Check that the winder is safe to run and that E-stop is reset.

2. Fit an empty core onto the winder. Do NOT splice a web onto the core or start the line.

3. Verify that DIAMETER in SPW is at core, the diameter preset. Set TENSION SP to 50%.4. Start the winder in JOG. The winder should run at 5% speed in the correct direction. If the direction is

wrong, change OVER-UNDER to Under.

5. Change the JOG SPEED to 50%. Check the core surface speed, it should be at 50% of maximum rated web

speed. Adjust the speed, if required, using the Tach or Encoder cal in the drive as appropriate.

6. Use START to enable the TENSION ENABLE while maintaining the Jog. With the TENSIONSP at 50% and

no web, the speed should increase.

7. Reduce TENSION SP to zero and apply force to the loadcell or move the dancer to the tight position. The

winder should slow down.

8. Remove the JOG and START; the drive should switch off.

9. Enable the PRESETENABLE. The DIAMETER should be preset to core.

10. Set the JOG SPEED back to 5%.This completes the Quick set up. The winder will now control tension but the dynamic performance may need

optimizing.

Setting Inertia Compensation Using Speed ControlFor this method of measuring the inertia compensation the drive is run independently of the SPW tension control. The

drive is run in speed control using the drive ramp to control acceleration and deceleration. Typically the drive will be

started and the speed demand to the ramp, set via SAM.

Note. Where load is specified, read current demand for the 590L or 590+ and read torque demand for the

620L or 690+.

Note. Where Base Speed is specified, this is the actual base speed (% of max speed) at the calibrated

maximum volts, not necessarily the motor nameplate base speed. This is the same as the BASE SPEED

parameter in SPW.

Inertia Compensations

Determine the fastest Master Ramp ramp time for the machine that maintains tension control. For example, if the run

time is 30 seconds and the stop time is 20 seconds, use 20 seconds; ignore the E-stop settings.

Set the RATE CAL in SPW to 20% Ramp time. This is a calibration setting and still permits the Master Ramp times

to be reduced (up to 25%) or increased (no limit). For example, if the fastest specified ramp time is 20 seconds, set

RATE CAL to 20% 20 = 1%.


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Chapter 3 Using SPW


Fixed Inertia

1. Install a core.

2. Set the drive ramp time, accel and decel to the time used for the Rate Cal above.

Without a Field Range

3. Start the drive at 1% speed and record the load and then set ramp speed demand to 100%. Read the change inload during acceleration. At full speed the load should return to a steady value; record the load.

4. Set the ramp speed demand back to 1% and read the deceleration load change. The load at 1% speed should

return to the same as recorded above.

5. The acceleration and deceleration load changes should be equal and opposite. This value is the Fixed Inertia

compensation.

For example, the load at 1% speed = 0.5% and the load at 100% speed = 2%. When accelerating the load starts

at 4% and increases to 5.5% just before full speed. This is 3.5% change. Decelerating the load starts at -1.5%

and decreases to -3.0% just before zero speed. This is a 3.5% change. The average of the acceleration and

deceleration load is the value for Fixed Inertia.

With a Field Range

6. The procedure is exactly the same as without a field range, above, except the high speed demand must be

limited to base speed (preferably just below).

For example, the load at 1% speed = 0.5% and the load at base speed = 2%. When accelerating the load starts

at 4% and increases to 5.5% just before base speed. This is 3.5% change. Decelerating the load starts at -1.5%

and decreases to -3.0% just before zero speed. This is a 3.5% change. The average of the acceleration and

deceleration load is the value for Fixed Inertia.

Variable Inertia

Determine the roll build up ratio. This is the maximum full roll diameter divided by the core diameter. The ramp rates

and speed demand must be modified by the build up. The ramp time is multiplied by the build up and the speed

demand divided by the build up.

For this example the Core OD = 6, the Full Roll diameter = 48and the Ramp Time = 20 sec.

The build up is 48/6 = 8.

The drive accel and decel ramp time is set to 20 8 = 160sec.

The high speed demand is 100 8 = 12.5%. This speed will be equal to or less than base speed so no special procedure

is required for a field range.

1. Fit a full roll or as near a full roll as possible (not larger). Measure the actual size; for the correction factor

for less than full roll, see later section.

2. Start the drive at 1% speed, then set ramp speed demand to value calculated above. Read the change in load

during acceleration. Set the ramp speed demand back to 1% and read the change in load during deceleration.

Take the average of the accel/decel load change values similarly to the Fixed Inertia procedure.

3. Subtract the Fixed inertia component from the full roll accel/decel load change and then correct for the roll

size.

Variable Inertia = (load change value from Step 2 (Fixed Inertia Build up)) (100% Roll Size%)3

The following example has a build up = 8, Fixed inertia = 3.5% and Roll size = 90% of a full roll. The measured loadchange is 12%.

Variable Inertia = (12 (3.5 8)) (100% 90%)3

= 15.86%

Use this value for SPW Variable Inertia.

If the winder uses a gearbox with multiple ratios or uses one or two motors, it will be necessary to measure the

compensations for each motor and gearbox ratio combination. The different compensations must be switched into the

SPW for each combination.


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Chapter 4 Function Block DiagramThis chapter contains the software block diagrams for the SPW3 function Block. Diagrams printed on the following

pages 4-2 through 4-4.


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D

R

IV

E

S


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D

R

IV

E

S


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D

R

IV

E

S


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SPW3 Speed Programmed Winder App. A - 1

Appendix A PID CONTROLER

Proportional Term

p(k) = Kp * e(k)

Integral Term

i(k) = Ki * Ts * e(k 1) + i(k 1)

Derivative Term

d(k) = (Kd / Ts) * [e(k) e(k 1)]

Notes

(k) = sample

(k - 1) = previous sample

Kp = P Gain

Ki = I Gain

Kd = D Gain

Ts = Sample Period setting


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App. A-- 2 SPW3 Speed Programmed Winder

Winders/SPW3 - RG355297


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DescriptionThis function block implements a Speed Programmed Winder. It is intended to perform the speed demand calculations

and associated logic for a closed loop winder.

This function block is made up of seven sub-function blocks (which are described separately): Diameter Calculator,Inertia Compensation, Speed Demand, Web Break Detector, Up to Speed Detector, Tension Demand, and Current

Memory. All logic outputs have built in Logic Senders.

Note:Lower case parameters with a * to them can be connected to the outside of a Macro for SAM purposes only. These

parameters only have an output when in SAM mode.

ParametersParameters are listed by sections as they appear in the configuration. If a parameter is not listed in this section, it

cannot be preset and is listed in either Set Methods and/or Get Methods. Unless otherwise noted, all parameters are

persistent and default value is listed in parenthesis at the end of the description.

Diameter Calculator - Main Parameters

Filter Max TC Diameter filter value when winder speed is zero (0.94).

Filter Mid TC Diameter filter value when winder speed is Filter Mid Speed (0.94).

Filter Min TC Diameter filter value when winder speed is 100% (0.94).

Filter Mid Speed Winder speed for Filter Mid TC (50%).

Diameter Hold Initial condition of Diameter Filter (Track).

Preset Enable Initial condition of Diameter Preset. Preset loads value of Core or External Diameter into Diameter

Filter (Disabled).

Min Speed Line Speed value below which Diameter is held (5%).

Min Diameter Minimum value of Diameter Calculator output. 100% = Full Roll (10%).

Diameter Tick Time Clock period for Diameter calculation. Filter Time is proportional to Tick Time (300 ms).

Diameter Calculator - Inertia Compensation

Over-Under Selects winding direction (Over).

Fixed Inertia Compensation value for the fixed inertia of the motor, coupling and core shaft. With the rate cal set

as specified below the Fixed Inertia is set to the % current required to accelerate the empty

core(below base speed) with the line (0%).

Variable Inertia Compensation for the roll inertia. With the rate cal set as specified below the Variable Inertia is set

to the % current required to accelerate the full roll with the line (0%).Width Width of the web and roll as a percentage of the maximum width (100%).

Base Speed Compensates for a field weakening range. Base Speed is % that the motor base speed is of the

applied full speed. This should correspond with the 590 calibration. The Base Speed parameter

should be left at 100% with a Torque Demand as in the 620 (100%).

Rate Cal Normalises the Rate input so that the Fixed and Variable Inertia parameters can be set directly as

%FLC. With the Rate input from the Master Ramp the Rate Cal should be set to 20%/Ramp time

(100%).


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Diameter Calculator - Core Parameters

Ext Diameter Initial value of External Diameter input (100% Full roll).

Ext Dia Select Selects source of Diameter Preset. see Preset Enable (Core).

Core 1 Value of Core 1 (10% Full roll).Core 2 Value of Core 2 (20% Full roll).

Core Select Initial core selection. Core 1 = false, Core 2 = true (Core 1).

Speed Demand - Speed Parameters

Speed Delta Ramp increment per Tick Time (Speed Demand Tick determined by update rate of Line Speed SP

input, typically 100ms). 2% in 100ms = Ramp time to 100% of 5 seconds (2%).

Jog Speed Value of Jog Speed (5%).

Start Initial condition Disabled, cannot be preset.

Jog Initial condition Disabled, cannot be preset.

M-Start Maintained Start, Initial condition Low (Disabled), cannot be preset.

Ready Initial condition Low (Disabled), cannot be preset.

Stop Initial condition Low (Disabled), cannot be preset.

Overspeed Overspeed added in current control with Current Memory Enabled (12%).

Speed Demand - PID Parameters

Setpoint Dancer Position Setpoint or initial value for Tension Setpoint (50%).

PID Enable Initial condition of PID Enable (Disabled).

Integral Enable Initial condition of PID Integral Enable (Enabled).

Integral Integral Time Constant in seconds (10).

Speed Demand - Profile Parameters

The Gain Profiler provides the ability to vary the gain with diameter. Three parameters are available: Max Gain which

sets the output at maximum diameter, Min Gain which sets the percentage of Max Gain at minimum diameter, and

Exponent which sets the profile between the max and min gain output values.

Drive Max Gain 590 Drive Speed loop proportional Gain at Maximum Diameter, if connected (20).

Drive Min Gain Drive Speed loop proportional Gain at Minimum Diameter, if connected. Specified as a % of Max

Gain (100%).

Drive Exponent Drive Speed loop proportional Gain profile between Drive Max gain and Drive Min gain (1).

D Max Gain PID Derivative Gain at Maximum Diameter (0).

D Min Gain PID Derivative Gain at Minimum Diameter. Specified as a % of Max Gain (100%).

D Exponent PID Derivative Gain profile between D Max Gain and D Min Gain (1).

P Max Gain PID Proportional Gain at Maximum Diameter (2).

P Min Gain PID Proportional Gain at Minimum Diameter. Specified as a % of Max Gain (100%).

P Exponent PID Proportional Gain profile between P Max Gain and P Min Gain (1).


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Speed Demand- Web Break Parameters

WB Delay Delay between detecting a web break and the Web Break output being set low (5 sec).

WB Threshold Threshold of Feedback below which a web break is detected (0%).

Tension Demand - Main ParametersTension Tick Time Clock period for Tension Demand calculation (300 ms).

Stall Tension Tension value when Stall Enabled (50%).

Stall Select Stall value - "Fixed" = Stall Tension, "Proportional" = Stall Tension * Set Tension (Proportional).

Stall Enable Initial condition of Stall Enable (Disabled).

Boost Determines Boost value when Boost Enabled (0%).

Boost Select Boost value - "Fixed" = Boost, "Proportional" = Boost xSet Tension (Proportional).

Boost Enable Initial condition of Boost Enable (Disabled).

Tension SP Initial value of Tension Setpoint (0%).

Taper SP Initial value of Taper Setpoint (0%).

Taper Select Selects "Linear" or "Hyperbolic" Taper profile (Linear).

Tension Demand - Output Parameters

Dancer Cal Scaling of output for Dancer loading (100%).

Tension Delta Tension Ramp increment per Tension Tick Time.

For Tension Tick Time of 300 ms and Tension Delta of 33%, 100% ramp time = 1 second (33%).

Current Memory - Main Parameters

CM Boost Increase in current when CM Boost Enable enabled (0%).

CM Boost Select Boost value - "Fixed" = Boost, "Proportional" = Boost xMeasured Current (Fixed).

CM Boost Enable Enables Boost in Current Memory (Disabled).

Memory Enable Initial condition of Current Memory Enable, Memory Enable also enables Memory Hold

(Disabled).

Memory Hold Initial condition of Memory Track and Hold, use if the current must be sampled before enabling

current memory (Track).

Memory Filter Memory Filter value = exp(-Tick Time/Filter Time), if Tick Time = 300ms and Filter Time = 1

second, then Filter value = 0.74 (.74).

Rewind/Unwind Selects Rewinding or Unwinding mode

Miscellaneous Parameters

UTS Threshold Up to Speed Threshold. Up to Speed Output is true when Winder Surface Speed is withinThreshold of Line Speed (5%).

Tension Enable Initial condition of Tension Enable. Enables diameter calculator (Disabled).

Range Non-Extn Trim range, as a percentage of full speed, of the PID loop when Extensible Web is Disabled (10%).

Range Extn Trim range, as a percentage of full speed, of the PID loop when Extensible Web is Enabled (15%).

Extensible Web Selects the PID Trim Range for two web types: Extensible or Non-Extensible (Disabled).

Other Enable Disconnects Dancer Loading output when other spindle Tension is Enabled (Disabled).


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Set MethodsArmature Current Current Memory input. Expects a value between -200% and 200%.

Base Speed Inertia Comp input. Expects a value between -120% and 120%.

Boost Tension Demand input. Expects a value between -100% and 100%.

Boost Enable Tension Demand input. Expects Enabled (true) or Disabled (false).

Boost Select Tension Demand input. Expects Proportional (true) or Fixed (false).

CM Boost Current Memory input. Expects a value between 0 and 100%.

CM Boost Enable Current Memory input. Expects Enabled (true) or Disabled (false).

CM Boost Select Current Memory input. Expects Proportional (true) or Fixed (false)

Core 1 Diameter Calc. input. Expects a value 0.1% to 100% Full Roll.

Core 2 Diameter Calc. input. Expects a value 0.1% to 100% Full Roll.

Core Select Diameter Calc. input. Expects Core 2 (true) or Core 1 (false).

D Exponent Speed Demand input. Expects an ordinal between 1 and 10.

D Max Gain Speed Demand input. Expects a value between -5 and 5.

D Min Gain Speed Demand input. Expects a value 0 to 100% (of Max Gain).

Dancer Cal Tension Demand input. Expects a value between -100% and 100%.

Diameter Filter Diameter Calc. input. Expects a value between 0 and 1.0.

Diameter Hold Diameter Calc. input. Expects Hold (true) or Track (false).

Drive Exponent Speed Demand input. Expects an ordinal between 1 and 10.

Drive Max Gain Speed Demand input. Expects a value between 0 and 200.

Drive Min Gain Speed Demand input. Expects a value 0 to 100% (of Max Gain).

Ext Dia Select Diameter Calc. input. Expects External (true) or Core (false).

Ext Diameter Diameter Calc. input. Expects a value 0.1% to 100% Full Roll.

Extensible Web Speed Demand input. Expects Enabled (true) or Disabled (false).

Feedback Speed Demand input. Expects a value between -100% and 100%.

Forward-Reverse Diameter Calc. input. Expects Forward (true) or Reverse (false).

Filter Max TC Diameter Calc. input. Expects a value between 0 and 1.0

Filter Mid Speed Diameter Calc. input. Expects a value between -120% and 120%

Filter Mid TC Diameter Calc. input. Expects a value between 0 and 1.0

Filter Min TC Diameter Calc. input. Expects a value between 0 and 1.0

Fixed Inertia Speed Demand input. Expects a value between 0% and 100%.

Integral Speed Demand input. Expects a value between 0-.1 and 15.

Integral Enable Speed Demand input. Expects Enabled (true) or Disabled (false).

Jog Speed Demand input. Expects Enabled (true) or Disabled (false).

Jog Speed Speed Demand input. Expects a value between -120% and 120%.

Line Speed Diameter Calc. input. Expects a value between -120% and 120%.

Line Speed SP Speed Demand input. Expects a value between -120% and 120%.

M-Start Speed Demand input. Expects Enabled (true) or Disabled (false).

Memory Enable Current Memory input. Expects Enabled (true) or Disabled (false).

Memory Filter Current Memory input. Expects a value between 0 and 1.0.


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Memory Hold Current Memory input. Expects Hold (true) or Track (false).

Min Diameter Diameter Calc. input. Expects a value 0.1% to 100% Full Roll.

Min Speed Diameter Calc. input. Expects a value between -120% and 120%.

Neg FB Limit Speed Demand input. Expects a value between -100% and 100%.

Other Enable Tension Demand input. Expects Enabled (true) or Disabled (false).

Over-Under Tension Demand input. Expects Over (true) or Under (false).

Overspeed Speed Demand input. Expects a value between 0 and 120%.

P Exponent Speed Demand input. Expects an ordinal between 1 and 10.

P Max Gain Speed Demand input. Expects a value between -30 and 30.

P Min Gain Speed Demand input. Expects a value 0 to 100% (of Max Gain).

PG Limit Speed Demand input. Expects a value between -100% and 100%.

PID Enable Speed Demand input. Expects Enabled (true) or Disabled (false).

Pos FB Limit Speed Demand input. Expects a value between -100% and 100%.

Preset Enable Diameter Calc. input. Expects Enabled (true) or Disabled (false).

Range Extn Speed Demand input. Expects a value between -100% and 100%.Range Non-Extn Speed Demand input. Expects a value between -100% and 100%.

Rate Speed Demand input. Expects a value between -1.0 and 1.0

Rate Cal Speed Demand input. Expects a value between -100% and 100%.

Rate SP Speed Demand input. Expects a value between -120% and 120%.

Ready Returns the current state: Enabled (true) or Disabled (false).

Rewind/Unwind Current Memory input. Expects Rewind (true) or Unwind (false).

Setpoint Speed Demand input. Expects a value between 0 and 100%.

Speed Delta Speed Demand input. Expects a value between 0 and 100%.

Stall Enable Tension Demand input. Expects Enabled (true) or Disabled (false).

Stall Select Tension Demand input. Expects Proportional (true) or Fixed (false).Stall Tension Tension Demand input. Expects a value between -100% and 100%.

Start Speed Demand input. Expects Enabled (true) or Disabled (false).

Stop Speed Demand input. Expects Active (low) or Inactive (high).

Taper SP Tension Demand input. Expects a value between -100% and 100%.

Taper Select Tension Demand input. Expects Hyperbolic (true) or Linear (false).

Tension Delta Tension Demand input. Expects a value between 0 and 1.0.

Tension Enable Tension Demand input. Expects Enabled (true) or Disabled (false).

Tension SP Tension Demand input. Expects a value between -100% and 100%.

UTS Threshold Up to Speed input. Expects a value between -120% and 120%.

Variable Inertia Speed Demand input. Expects a value between 0 and 100%.

WB Threshold Speed Demand input. Expects a value between 0 and 100%.

WB Delay Speed Demand input. Expects a value between 0 and 3000 sec.

Width Speed Demand input. Expects a value between 0 and 100%.

Winder Speed General input. Expects a value between -120% and 120%.


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Get MethodsGet Aux Current Demand Returns the current state: Value between -200% and 200%.

Get Base Speed Returns the current state: Value between -120% and 120%.

Get Boost Returns the current state: Value between -100% and 100%.

Get Boost Enable Returns the current state: Enabled (true) or Disabled (false).

Get Boost Select Returns the current state: Proportional (true) or Fixed (false).

Get CM Boost Returns the current state: Value between 0% and 100%.

Get CM Boost Enable Returns the current state: Enabled (true) or Disabled (false).

Get CM Boost Select Returns the current state: Proportional (true) or Fixed (false).

Get Core Returns the current state: % (Full Roll = 100%).

Get Core 1 Returns the current state: % (Full Roll = 100%).


Get Core Select Returns the current state: Core 2 (true) or Core 1 (false).

Get D Exponent Returns the current state: Ordinal 1 to 10.

Get D Max Gain Returns the current state: Value between 0% and 100%.

Get D Min Gain Returns the current state: % of Max Gain.

Get Dancer Cal Returns the current state: Value between -100% and 100%.

Get Derivative Returns the current state: Value between -5% and 5%.

Get Diameter Returns the current state: % (Full Roll = 100%).

Get Diameter Hold Returns the current state: Holding (true) or Tracking (false).

Get Diameter Preset Returns the current state: % (Full Roll = 100%).

Get Drive Exponent Returns the current state: Ordinal 1 to 10.

Get Drive Max Gain Returns the current state: Value between 0 and 200.

Get Drive Min Gain Returns the current state: % of Max Gain.

Get Drive P Gain Returns the current state: Value between 0 and 200.

Get Drive Start Returns the current state: Enabled (true) or Disabled (false).

Get Ext Dia Select Returns the current state: Enabled (true) or Disabled (false).

Get Ext Diameter Returns the current state: % (Full Roll = 100%).

Get Extensible Web Returns the current state: Enabled (true) or Disabled (false).

Get Feedback Returns the current state: Value between -100% and 100%.

Get Filter Max TC Returns the current state: Value between 0 and 1.0.

Get Filter Mid Speed Returns the current state: Value between -120% and 120%.

Get Filter Mid TC Returns the current state: Value between 0 and 1.0.

Get Filter Min TC Returns the current state: Value between 0 and 1.0.

Get Filter TC Returns the current state: Value between 0 and 1.0.

Get Filtered Current Returns the current state: Value between -200% and 200%.

Get Fixed Inertia Returns the current state: Value between 0% and 100%.

Get In Tension Returns the current state: Enabled (true) or Disabled (false).

Get Inertia Comp Returns the current state: Value between -200% and 200%.

Get Integral Returns the current state: Value between 0.1 and 15.


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Get Integral Enable Returns the current state: Enabled (true) or Disabled (false).

Get Jog Returns the current state: Enabled (true) or Disabled (false).

Get Jog Speed Returns the current state: Value between -120% and 120%.

Get Line Speed Returns the current state: Value between -120% and 120%.

Get Line Speed SP Returns the current state: Value between -120% and 120%.

Get M-Start Returns the current state: Enabled (true) or Disabled (false).

Get Memory Enable Returns the current state: Enabled (true) or Disabled (false).

Get Memory Filter Returns the current state: Value between 0 and 1.0.

Get Memory Hold Returns the current state: Holding (true) or Tracking (false).

Get Min Diameter Returns the current state: % (Full Roll = 100%).

Get Min Speed Returns the current state: Value between -120% and 120%.

Get Neg FB Limit Returns the current state: Value between -100% and 100%.

Get Neg Clamp Returns the current state: Value between -200% and 200%.

Get Other Enable Returns the current state: Enabled (true) or Disabled (false).

Get Over-Under Returns the current state: Over (true) or Under (false).Get Overspeed Returns the current state: Value between 0% and 120%.

Get P Exponent Returns the current state: Ordinal 1 to 10.

Get P Max Gain Returns the current state: Value between 0% and 100%.

Get P Min Gain Returns the current state: % of Max Gain.

Get PG Limit Returns the current state: Value between 0% and 100%.

Get PID Enable Returns the current state: Enabled (true) or Disabled (false).

Get PID Output Returns the current state: Value between -100% and 100%.

Get Pos FB Limit Returns the current state: Value between -100% and 100%.

Get Pos Clamp Returns the current state: Value between -200% and 200%.

Get Preset Enable Returns the current state: Enabled (true) or Disabled (false).Get Proportional Returns the current state: Value between 0 and 200.

Get Ramped Speed Returns the current state: Value between -120% and 120%.

Get Range Returns the current state: Value between -100% and 100%.

Get Range Extn Returns the current state: Value between -100% and 100%.

Get Range Non-Extn Returns the current state: Value between -100% and 100%.

Get Rate Cal Returns the current state: Value between -100% and 100%.

Get Rate SP Returns the current state: Value between -120% and 120%.

Get Ready Returns the current state: Not Ready (low) or Ready (high).

Get Rewind/Unwind Returns the current state: Rewind (true) or Unwind (false).

Get Scaled Rate Returns the current state: Value between -100% and 100%.

Get Setpoint Returns the current state: Value between -100% and 100%.

Get Speed Delta Returns the current state: Value between 0% and 100%.

Get Speed Demand Returns the current state: Value between -120% and 120%.

Get Stall Enable Returns the current state: Enabled (true) or Disabled (false).

Get Stall Select Returns the current state: Proportional (true) or Fixed (false).

Get Stall Tension Returns the current state: Value between -100% and 100%.


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Get Start Returns the current state: Started (true) or Off (false).

Get Start Latch Returns the current state: Enabled (true) or Disabled (false).

Get Stop Returns the current state: Active (low) or Inactive (high).

Get Taper SP Returns the current state: Value between -100% and 100%.

Get Taper Select Returns the current state: Hyperbolic (true) or Linear (false).

Get Tension Delta Returns the current state: Value between -100% and 100%.

Get Tension Demand Returns the current state: Value between -100% and 100%.

Get Tension Enable Returns the current state: Enabled (true) or Disabled (false).

Get Tension SP Returns the current state: Value between -100% and 100%.

Get Rewind-Unwind Returns the current state: Rewind (true) or Unwind (false).

Get UTS Threshold Returns the current state: Value between -120% and 120%.

Get Up to Speed Returns the current state: true or false.

Get Variable Inertia Returns the current state: Value between 0% and 100%.

Get WB Delay Returns the current state: Value between 0 and 3000 sec.

Get WB Threshold Returns the current state: Value between 0% and 100%.Get Web Break Returns the current state: Enabled (true) or Disabled (false).

Get Width Returns the current state: Value between 0% and 100%.

Get Winder Speed Returns the current state: Value between -120% and 120%.


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34/50

SSD LINK SPW Function Block Manual

HA354464 issue 2 page 1 Eurotherm Drives Inc 1808 Michael Faraday Court Reston Virginia 22090 USA

Winders/SPW

This fun ction block implements a Speed Programm ed Wind er. It is intend ed to perform

the speed demand calculations and associated logic for a closed loop wind er. A

simplified block diagram is shown below; detailed drawings can be found in the

appendix.

ARMATURE CURRENTBOOSTBOOST ENABLE

BOOST SELECTBUILD UPCORE 1CORE 2

CORE SELECTDIAMETER HOLDEXT DIA SELECT

EXT DIAMETER

EXTENSIBLE WEBFEEDBACKFORWARD-REVERSE

INTEGRALINTEGRAL ENABLEJOGJOG SPEED

LINE SPEEDLINE SPEED SPLOADCELL 1LOADCELL 2

MEMORY ENABLEMEMORY HOLDMIN DIAMETER

MIN SPEEDOTHER ENABLEOVER-UNDERPID ENABLE

PRESET ENABLERANGE EXTNRANGE NON-EXTNREWIND-UNWIND

SETPOINTSTALL ENABLESTALL SELECTSTALL TENSION

STARTTAPER SELECTTAPER SP

TENSION ENABLETENSION SPWB RESETWINDER SPEED

DIAMETER FILTER

WB THRESHOLD

D EXPONENTD MAX GAIND MIN GAIN

590 DRIVE EXPONENT590 DRIVE MAX GAIN590 DRIVE MIN GAINLC 1 SIGN

LC 1 ZEROLC 2 SIGNLC 2 ZEROLC SPAN

NEG FB LIMITP EXPONENTP MAX GAIN

P MIN GAINPG LIMITPOS FB LIMITRUN DELTA

STOP DELTA

UTS THRESHOLD

DANCER CALTENSION DELTA

CM BOOSTCM BOOST SELECTMEMORY FILTER

SPW

WEB BREAK DETECTOR

SPEED DEMAND

UP TO SPEED DETECTOR

CURRENT MEMORY

DIAMETER CALCULATOR (300 ms)

TENSION DEMAND (300 ms)

0%DP

10.010%20%

1

TC

D

F10.0

E

D5%

0%D

T10%5%

DODD

15%

10%R

50%

DP

50%D

L0%

D

0%D

0.94

10%

10.0

100%1

20

100%100%

0%

100%0%1.0

-100%

12.0

100%

100%100%

2%2%

5%

100%33%

0%

F0.74

CURRENT DEMANDCURRENT ENABLEFILTERED CURRENT

DIAMETER

WEB BREAK

SPEED DEMAND590 DRIVE P GAIN

LOADCELL TENSION

TENSION DEMANDDANCER LOADING

IN TENSION

UP TO SPEED

This fun ction block is mad e up of five sub-function blocks: "Diameter Calculator & Web

Break Detector", "Up to Speed Detector", "Tension Demand", "Speed Demand", and

"Cur rent Memory". Each of these are described below. Unless otherwise noted , all

parameters are persistent, can be preset, and have set and get methods. All logic


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outp uts h ave built in Logic Senders.

Diameter Calculator & Web Break Detector

This block performs the Diameter calculation used by the other sub-function blocks.Simply, the d iameter is calculated by d ividing the absolute value of the Line Speed by

the absolute value of the Winder Speed. This resu lt is scaled by the Build Up

parameter1. This result goes to a filter block who's outpu t can be held and is then

clamped giving the final diameter output. Diameter Filter is used to set the filter rate

and the diameter input to the filter is held when Preset Enable is false and Diameter

Hold is true, or when Preset Enable is false and Tension Enable is false or Line Speed

is less than Min Speed. Note that only the inpu t diameter is held, the filter outpu t may

continue to change in the held state until it matches the held d iameter. Min Diameter is

the minimum d iameter value for the the clamp . The Diameter outp ut w ill not go below

this value.

It is also possible to use a Diameter Preset (Core 1, Core2 an d External Diameter,

selected by Core Select an d Ext Dia Select). The Diameter Preset is used as both the

input and output of the filter ifPreset Enable is true and Tension Enable is false or

Line Speed is less than Min Speed. The Diameter Preset is also loaded into the filter

wh enever the modu le is restarted.

The Web Break Detector takes the difference between the computed diameter and the

previously comp uted diameter and based on Rewind-Unwind and Forward-Reverse,

adds or subtracts it to an internal accumulator2 . When the internal accum ulator is

greater than WB Threshold, the Web Break outp ut becomes tru e, otherwise it is false.

The internal accum ulator can be reset to zero by either WB Reset going true or Tension

Enable going false.

Diameter Tick Time can only be preset and specifies the rate at which the diameter is

calculated.

Up to Speed D etector

This block compares a computed line speed (uses Winder Speed, D iameter and Build

Up ) with Line Speed SP. If the absolute value of the difference is is less than UTSThreshold, the Up to Speed outpu t is set true.

Tension D emand

1 The Link system u ses a normalized n um bering system. All values are represented as n um bers between -1 and 1.

When th e result of a calculation wou ld be a value outside th is range, the result is saturated to -1 or 1 so that it will

be a legal value. Thus, many intermed iate calculations need to be scaled to prevent satura tion.2 The accumu lator is clamped so that it never goes below 0. The sum ad ded in is clamp ed to WB Threshold/ 4.


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This block compu tes a tension d emand . The first part of the tension deman d calculation

involves comp uting a taper term. This term is based on Diameter, Taper SP, the

selected core (Core 1 or Core 2), and the type of Taper Selected (see drawings for

details). The taper term is mu ltiplied by Tension SP, and ifStall Enable an d Boost

Enable are false, is the inpu t to the ramp. IfStall Enable is true, this term is mu ltipliedby Stall Tension and input into the ramp ifStall Select is prop ortional, otherwise, just

the Stall Tension term is presented to the ramp . IfBoost Enable is true and Stall

Enable is false, a boost is add ed before the value is inpu t to the ramp. The amount of

boost is based on Boost Select. If it is fixed, the amou nt of boost will be Boost. If it is

proportional, the amount will Boost multiplied by the tension term. Tension Delta

controls the ramp rate and specifies the amount the ramp may change each Tension

Tick Time (the rate at which tension demand is calculated). The ramp ou tpu t is also the

Tension Demand outp ut. The tension dem and can be mu ltiplied by Dancer Cal to

compu te the Dancer Loading outp ut. This message is sent only wh en Tension Enable

is true and Other Enable is false. This condition also sets the In Tension output.

Speed Demand

This block calculates the Speed Demand output. The Start and Jog select wether the

Line Speed or the Jog Speed is inpu t into the ramp . If either Start or Jog is true, Run

Delta is use as the ramp rate, otherwise, Stop Delta is used for the stop rate and the

ramp inpu t is zero. The ramp ou tput is divided by Build Up (see Diameter Calculator),

then the scaled PID trim is added and finally it is divided by the signed Diameter

(determined by Over-Under) to produ ce the Speed Demand output.

See the G Profiler/Generic data sheet for a description on how the PID output isgenerated. This outpu t is multiplied by the selected Range and add ed as a trim to the

Speed Demand being calculated.

Current Memory

This block calculates the Current Demand outp ut. This outp ut is simply the filtered

value of the Armature Current input (Memory Filter specifies the filter time constant)

which has CM Boost (selected by CM Boost Select) added to it and is then passed

throu gh a track and hold block. The hold function is enabled by either the Memory

Hold input being true or the Memory Enable input being in the enable state and Web

Break (see "Diameter Calculator & Web Break Detector" description) being false.


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Parameter Description Default

Diameter Calculator - Main Parameters

Min Diameter Minimum value of Diameter Calculator output.

Full d iameter = 100% Min = 100%/ Build Up

10%

Diameter Filter Diameter Filter value = e-Tick Time/ Filter Time

(if Tick Time = 300ms and Filter Time = 5 second s, then

Filter value = 0.94).

0.94

Diameter Hold Initial condition of Diameter Filter. Track

Preset Enable Initial condition of Diameter Preset.

Preset loads value of Core or External Diameter into

Diameter Filter.

Disabled

Min Speed Line Speed value below which Diameter is held . 5%

Build Up Ratio of Full Roll Diameter to Core Diameter. 10

Diameter Tick

Time

Clock per iod for Diameter calculation.

Filter Time is proportional to Tick Time.

300 ms

Diameter Calculator - Web Break Parameters

WB Threshold Internal accumu lator threshold value to detect a web

break. Represented as a % of full roll d iameter .

10%

Rewind-

Unwind

Selects application for Rewind ing or Unw inding.

Rewind = true, Unw ind = false. See Forward-Reverse.

Rewind

Forward-

Reverse

Initial condition of line Direction. Only used in reversing

lines. In Reverse, unwind becomes rewind and rewind

becomes un wind.

Forward = tru e, Reverse = false.

Forward

WB Reset Initial condition of Web Break Counter Reset. Disabled

Tension Enable Initial condition of Tension Enable. Disabled

Diameter Calculator - Core Parameters

Ext Diam eter Initial valu e of External Diam eter in pu t (% Fu ll roll). 100%

Ext Dia Select Selects sou rce of Diam eter Preset (see Preset En able). Core


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Core 1 Value of Core 1 (% Full roll). 10%

Core 2 Value of Core 2 (% Full roll). 20%

Core Select Initial core selection (Core 1 = false, Core 2 = tru e). Core 1

Speed Demand - Jog Parameters

Run Delta Run Ramp increment per Tick Time (Speed Demand Tick

determ ined by up da te rate of Line Speed SP input,

typ ically 100ms). 2% in 100ms = Ram p tim e to 100% of 5

seconds.

2%

Stop Delta Stop Ramp increment, when Start and Jog are Disabled

(see Run Delta above).

2%

Jog Speed Value of Jog Speed 5%

Start Initial condition of Start input Disabled

Jog Initial condition of Jog input Disabled

Speed D emand - PID Parameters

Setpoint Dancer Position Setpoint or initial value for Tension

Setpoint.

50%

PID Enable Initial condition of PID Enable. Disabled

Integral Enable Initial condition of PID Integral Enable. Enabled

PG Limit If absolute value of proportional output is > PG Limit,

then Integral is held at current va lue.

100%

Pos FB Limit If Feedback value is > Pos FB Limit, then Integral is held

at current value.

100%

Neg FB Limit If Feedback value is < Neg FB Limit, then Integral is held

at current value.

-100%

Integral Integral Time Constant in seconds. 10


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Speed Demand - Profile Parameters

The Gain Profiler prov ides the ability to vary the gain

with diameter. Three parameters are available: MaxGain which sets the outp ut at maximu m d iameter, Min

Gain which sets the percentage of Max Gain at m inimum

diameter, and Exponent w hich sets the p rofile between

the max and m in gain outp ut values.

Drive Max Gain 590 Drive Speed loop proportional Gain at Maximum

Diameter (if conn ected).

20

Drive MinGain Drive Speed loop p roportional Gain at Minimum

Diameter (if conn ected).

100%

Drive Exponent Drive Speed loop proportional Gain profile betweenDrive Max gain and Drive Min gain.

1

D Max Gain PID Derivative Gain at Maximum Diameter. 0

D Min Gain PID Derivative Gain at Minimum Diameter. 100%

D Exponent PID Derivative Gain profile between D Max Gain and D

Min Gain.

1

P Max Gain PID Proportional Gain at Maximum Diameter. 2

P Min Gain PID Proportional Gain at Minimum Diameter. 100%

P Exponent PID Proportional Gain profile between P Max Gain and P

Min Gain.

1

Speed Demand - Loadcell Parameters

LC Span LC Span is the Gain of the Loadcell Amplifier.

Range is -10 to 10.

1

LC 1 Sign Sign of Loadcell 1 input.

100% = Positive, -100% = N egative.

100%

LC 1 Zero Zero offset for Loadcell 1 input. 0%

LC 2 Sign Sign of Loadcell 2 input.

100% = Positive, -100% = N egative.

100%

LC 2 Zero Zero offset for Loadcell 2 input. 0%

Loadcell 2 Initial value of Loadcell 2 input. 0%


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Tension D emand - Main Parameters

Tension Tick

Time

Clock period for Tension Demand calculation. 300 ms

Stall Tension Tension value when Stall Enabled. 50%

Stall Select Stall value - "Fixed" = Stall Tension, "Proportional" = Stall

Tension * Set Tension.

Proportional

Stall Enable Initial condition of Stall Enable Disabled

Boost Determines Boost value when Boost Enabled . 0%

Boost Select Boost value - "Fixed" = Boost, "Proportional" = Boost x

Set Tension.

Proportional

Boost Enable Initial condition of Boost Enable. Disabled

Tension SP Initial value of Tension Setpoint. 0%

Taper SP Initial value of Taper Setpoint. 0%

Taper Select Selects "Linear" or "Hyperbolic" Taper profile. Linear

Tension Demand - Output Parameters

Dancer Cal Scaling of output for Dancer loading. 100%

Tension Delta Tension Ramp increment per Tension Tick Time.

For Tension Tick Time of 300 ms an d Tension Delta of

33%, 100% ramp time = 1 second .

33%

Current Memory - Main Parameters

CM Boost Increase in current when Current Memory enabled. 0%

CM Boost Select Boost value - "Fixed" = Boost, "Proportional" = Boost x

Measured Current.

Fixed

Memory Filter Memory Filter value = e-Tick Time/ Filter Time

(if Tick Time = 300ms and Filter Time = 1 second , then

Filter value = 0.74).

.74


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Current Memory - Control Parameters

Memory Hold Initial condition of Memory Track and Hold (use if the

current must be sampled before enabling curr entmemory).

Track

Memory Enable Initial condition of Current Memory Enable (Memory

Enable also enables Memory Hold).

Disabled

Miscellaneous Parameters

UTS Threshold Up to Speed Threshold.

Up to Speed Outp ut is true when Wind er Sur face Speed

is within Threshold of Line Speed.

5%

Over-Under Selects Winding Direction. Also used for direction of Jog

for payout and takeup.

Over

Range Non-Extn Trim range, as a percentage of full speed, of the PID loop

when Extensible Web is Disabled.

10%

Range Extn Trim range, as a percentage of full speed, of the PID loop

when Extensible Web is Enabled.

15%

Extensible Web Selects the PID Trim Range for two web types: Extensible

or Non-Extensible.

Disabled

Other Enable Disconnects Dancer Loading output when other spindle

Tension is Enabled .

Disabled


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Operation Description

Armature

Current

Cur rent Memory inpu t. Expects a value between -200% and 200%.

Boost Tension Demand input. Expects a value between -100% and 100%.

Boost Enable Tension Demand inpu t. Expects Enabled (true) or Disabled (false).

Boost Select Tension Demand input. Expects Proportional (true) or Fixed (false).

Build Up General Input. Expects a value between 1 and 20.

CM Boost Current Memory input. Expects Proportional (true) or Fixed (false).

CM Boost Select Current Memory inpu t. Expects a value between -100% and 100%.

Core 1 Diameter Calc. input. Expects a value 0.1% to 100% Full Roll.Core 2 Diameter Calc. input. Expects a value 0.1% to 100% Full Roll.

Core Select Diameter Calc. input. Expects Core 2 (true) or Core 1 (false).

D Exponent Speed Demand input. Expects an ordinal between 1 and 10.

D Max Gain Speed Demand input. Expects a value between -5 and 5.

D Min Gain Speed Demand input. Expects a value 0 to 100% (of Max Gain).

Dancer Cal Tension Demand input. Expects a value between -100% and 100%.

Diameter Filter Diameter Calc. input. Expects a value between 0 and 1.0.

Diameter Hold Diameter Calc. input. Expects Hold (true) or Track (false).

Drive Exponent Speed Demand input. Expects an ordinal between 1 and 10.

Drive Max Gain Speed Demand input. Expects a value between 0 and 200.

Drive Min Gain Speed Demand input. Expects a value 0 to 100% (of Max Gain).

Ext Dia Select Diameter Calc. inpu t. Expects External (true) or Core (false).

Ext Diameter Diameter Calc. input. Expects a value 0.1% to 100% Full Roll.

Extensible Web Speed Demand inpu t. Expects Enabled (true) or Disabled (false).

Feedback Speed Demand input. Expects a value between -100% and 100%.

Forward-

Reverse

Diameter Calc. input. Expects Forwar d (true) or Reverse (false).

Jog Speed Demand input. Expects Enabled (true) or Disabled (false).

Jog Speed Speed Demand input. Expects a value between -120% and 120%.

LC 1 Sign Speed Demand input. Expects a value between -100% and 100%.


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LC 2 Sign Speed Demand input. Expects a value between -100% and 100%.

LC 1 Zero Speed Demand input. Expects a value between -100% and 100%.

LC 2 Zero Speed Demand input. Expects a value between -100% and 100%.

LC Span Speed Demand input. Expects a value between -10 and 10.

Line Speed Diameter Calc. input. Expects a value between -120% and 120%.

Line Speed SP Speed Demand input. Expects a value between -120% and 120%.

Loadcell 1 Speed Demand input. Expects a value between -100% and 100%.

Loadcell 2 Speed Demand input. Expects a value between -100% and 100%.

Memory Enable Current Memory input. Expects Enabled (true) or Disabled (false).

Memory Filter Current Memory inpu t. Expects a value between 0 and 1.0.

Memory Hold Current Memory input. Expects Hold (true) or Track (false).

Min Diameter Diameter Calc. inpu t. Expects a value 0.1% to 100% Full Roll.

Min Speed Diameter Calc. input. Expects a value between -120% and 120%.

Other Enable Tension Demand input. Expects Enabled (true) or Disabled (false).

Over-Under Tension Demand input. Expects Over (true) or Under (false).

P Exponent Speed Demand input. Expects an ordinal between 1 and 10.

P Max Gain Speed Demand input. Expects a value between -30 and 30.P Min Gain Speed Demand input. Expects a value 0 to 100% (of Max Gain).

Preset Enable Diameter Calc. input. Expects Enabled (true) or Disabled (false).

Range Extn Speed Demand input. Expects a value between -100% and 100%.

Range Non-Extn Speed Demand input. Expects a value between -100% and 100%.

Rewind-

Unwind

Tension Demand inpu t. Expects Rewind (true) or Unw ind (false).

Run Delta Speed Demand input. Expects a value between 0 and 100%.

Stall Enable Tension Demand inpu t. Expects Enabled (true) or Disabled (false).

Stall Select Tension Demand input. Expects Proportional (true) or Fixed (false).

Stall Tension Tension Demand input. Expects a value between -100% and 100%.

Start Speed Demand input. Expects Enabled (true) or Disabled (false).

Stop Delta Speed Demand input. Expects a value between 0 and 100%.


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Taper SP Tension Demand input. Expects a value between -100% and 100%.

Taper Select Tension Demand inpu t. Expects Hyp erbolic (true) or Linear (false).

Tension Delta Tension Demand input. Expects a value between 0 and 1.0.

Tension Enable Tension Demand inpu t. Expects Enabled (true) or Disabled (false).

Tension SP Tension Demand inpu t. Expects a value between -100% and 100%.

UTS Threshold Up to Speed inpu t. Expects a value between -120% and 120%.

WB Thresh old Diameter Calc. input . Expects a value between 0 and 100%.

WB Reset Diameter Calc. input. Expects Enabled (true) or Disabled (false).

Winder Speed General input. Expects a value between -120% and 120%.

Get Boost Returns the current state: Value between -100% and 100%.

Get Boost

Enable

Returns the cur rent state: Enabled (true) or Disabled (false).

Get Boost Select Returns the current state: Proportional (true) or Fixed (false).

Get Build Up Returns the current state: Value between 1 and 20.

Get CM Boost Returns the current state: Value between -100% and 100%.

Get CM Boost

Select

Return s the curren t state: Prop ortional (tru e) or Fixed (false).

Get Core Returns the current state: % (Full Roll = 100%).



Get Core Select Returns the current state: Core 2 (true) or Core 1 (false).

Get Curren t

Demand

Returns the cur rent state: Value between -200% and 200%.

Get D Exponent Returns the current state: Ordinal 1 to 10.

Get D Max Gain Returns the current state: Value between 0% and 100%.Get D Min Gain Returns the current state: % of Max Gain.

Get Dancer Cal Returns the current state: Value between -100% and 100%.

Get Diameter Returns the current state: % (Full Roll = 100%).

Get Diameter

Filter

Returns the cur rent state: Value between -1.0 and 1.0.


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Get Diameter

Hold

Returns the current state: Holding (true) or Tracking (false).

Get Diameter

Preset

Returns the cur rent state: % (Full Roll = 100%).

Get Drive

Exponent

Return s the current state: Ord inal 1 to 10.

Get Drive Max

Gain

Returns the curren t state: Value between 0 and 200.

Get Drive Min

Gain

Returns the curren t state: % of Max Gain.

Get Drive P

Gain

Returns the curren t state: Value between 0 and 200.

Get Ext Dia

Select


Get Ext

Diameter


Get Extensible

Web


Get Feedback Returns the current state: Value between -100% and 100%.

Get Filtered

Current


Get Forward-

Reverse

Return s the curren t state: Forward (tru e) or Reverse (false).

Get Jog Returns the current state: Enabled (true) or Disabled (false).

Get Jog Speed Returns the current state: Value between -120% and 120%.

Get LC 1 Sign Returns the current state: Value between -100% and 100%.

Get LC 2 Sign Returns the current state: Value between -100% and 100%.

Get LC 1 Zero Returns the current state: Value between -100% and 100%.

Get LC 2 Zero Returns the current state: Value between -100% and 100%.

Get LC Span Returns the current state: Value between -10 and 10.

Get Line Speed Returns the current state: Value between -120% and 120%.

Get Line Speed

SP



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Get Loadcell 1 Returns the current state: Value between -100% and 100%.

Get Loadcell 2 Returns the current state: Value between -100% and 100%.

Get Memory

Enable


Get Memory

Filter

Returns the curren t state: Value between 0 and 1.0.

Get Memory

Hold

Returns the current state: Holding (true) or Tracking (false).

Get Min

Diameter


Get Min Speed Returns the current state: Value between -120% and 120%.

Get Other

Enable


Get Over-Under Returns the current state: Over (true) or Under (false).

Get P Exponent Returns the current state: Ordinal 1 to 10.

Get P Max Gain Returns the current state: Value between 0% and 100%.

Get P Min Gain Returns the current state: % of Max Gain.

Get Preset

Enable


Get Ramp ed

Speed


Get Range Returns the current state: Value between -100% and 100%.

Get Range Extn Returns the current state: Value between -100% and 100%.

Get Range Non-

Extn


Get Rewind -

Unwind

Returns the current state: Rewind (true) or Unw ind (false).

Get Run Delta Returns the current state: Value between 0% and 100%.

Get Speed Delta Returns the current state: Value between 0% and 100%.

Get Speed

Demand


Get Stall Enable Returns the current state: Enabled (true) or Disabled (false).


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Get Stall Select Returns the current state: Proportional (true) or Fixed (false).

Get Stall

Tension


Get Start Returns the current state: Started (true) or Off (false).

Get Stop Delta Returns the current state: Value between 0% and 100%.

Get Taper SP Returns the current state: Value between -100% and 100%.

Get Taper Select Returns the current state: Hyp erbolic (true) or Linear (false).

Get Tension

Delta


Get Tension

Demand


Get Tension

Enable


Get Tension SP Returns the current state: Value between -100% and 100%.

Get UTS

Threshold


Get Up to Speed Returns the current state: true or false.

Get WB Threshold Returns the cur rent state: Value between 0% and 100%.

Get WB Reset Returns the current state: Enabled (true) or Disabled (false).

Get Web Break Returns the current state: Enabled (true) or Disabled (false).

Get Wind er

Speed



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Technical App Notes for LINK SPW Speed Programmed Winder

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Transcript of Technical App Notes for LINK SPW Speed Programmed Winder