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Carotron PI240-000, Инструкция по эксплуатации

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Carotron PI240-000 Скачать руководство пользователя страница 14

 
 

14 

Step 4: Build Ratio

 

1.  Determine the 

Build

 

Ratio

 of the letoff.  If multiple sizes are used, calculate with 

the smallest core diameter and largest maximum diameter.  Note that the PI240-
000 module is only designed to handle 

Build Ratios

 of approximately 3 or less.  

For larger 

Build Ratios

, contact Carotron, Inc. for assistance.  

 

lDiameter

MinimumRol

lDiameter

MaximumRol

BuildRatio

=

 

 

Step 5: Teach Process Variable (Feedback) 

1.  The order in which the two extreme feedback levels (minimum and maximum) are 

taught determines the logic of the control loop. 

2.  For Dancer systems, position the dancer at the extreme position that should force 

the follower drive to increase in speed.  For Loadcell systems, apply either no load 
or full load (by hanging weights in the material path) to the loadcell that should 
cause the follower drive to increase in speed. 

3.  Apply power to the PI240-000 Module.  Within one minute, connect the Teach 

input (terminal 12) to circuit common (terminal 11). 

4.  For Dancer systems, position the dancer at the other extreme position that should 

force the follower drive to decrease in speed.  For Loadcell systems, apply the 
other extreme signal (either no load of full load) that should cause the follower 
drive to decrease in speed. 

5.  Disconnect the Teach input (terminal 12) from circuit common (terminal 11). 

 

Step 6: Select Unipolar Integral

 

1.  Ensure there is no jumper between terminals 11 and 12. 

 

Step 7: Speed Match

 

1.  Ensure the enable contact between terminals 10 & 11 is open. 
2.  Enable the lead and letoff drives.  Run the lead drive up to maximum desired 

speed.  Using a handheld tachometer, measure the surface speed of the lead 
drive. This is the 

MaximumSurfaceSpeed

. 

3.  Divide 10V by the 

Build Ratio

 value to determine the maximum Summing Input 

value. The line speed reference signal (from the lead drive) that is connected to 
the Summing Input on terminal 5 should be scaled to slightly lower than this value. 
For example, a 

Build Ratio

 of 2 would yield 10/2=5V.  The Sum signal should then 

be scaled approximately 10% lower to yield 4.5V. 

4.  Adjust the speed of the letoff drive until the empty core surface speed matches 

the 

StartSurfaceSpeed

. 

 

90

.

0

×

=

BuildRatio

faceSpeed

MaximumSur

ceSpeed

StartSurfa

 

 

For example, if the 

MaximumSurfaceSpeed

 (measured above) is 350 Ft/Min, and 

the 

BuildRatio

 is 2, the 

StartSurfaceSpeed

 is 158 Ft/Min.  The letoff drive speed 

would typically be adjusted by using its Max Speed or Analog Input Gain 
adjustment. 

Содержание PI240-000

Страница 1: ...Proportional Integral Loop Module Instruction Manual PI240 000 ...

Страница 2: ...der Adjustment Procedure 10 5 3 Letoff Unwinder Adjustment Procedure 13 5 4 General PI Adjustment Procedure 16 6 Prints 17 C13702 PI240 000 Block Diagram 17 C13701 PI240 000 Assembly 18 C13703 PI240 000 General Connections 19 7 Standard Terms Conditions of Sale 21 List of Figures Figure 1 Physical Dimensions 4 Figure 2 General Connections 5 Figure 3 Surface Follower Application Example 8 Figure 4 ...

Страница 3: ...olar bipolar of the Integral component An internal jumper allows selection of a voltage or current output Onboard EEPROM is used to backup and retain the feedback calibration values during a power loss Specifications 2 1 Electrical D C Power Input 24 VDC 10 60mA max internally fused 10VDC Reference Output 10mA max Feedback Sum Inputs Range 0 10VDC Input Impedance 1012 Ω Potentiometers Turns 15 Sig...

Страница 4: ...ounding Signal level wiring such as listed above should be routed separately from high level power wiring such as the A C line motor operator control and relay control wiring When these two types of wire must cross they should cross at right angles to each other Any relay contactor starter solenoid or other electro mechanical device located in close proximity to or on the same line supply as the P...

Страница 5: ...5 3 2 Signal Connections Figure 2 General Connections ...

Страница 6: ... in seconds and corresponds to the amount of time that the PI Output signal would take to integrate from 0 to 100 Range is from 0 010s fully counter clockwise to 60s fully clockwise PI TRIM Potentiometer This adjustment controls the amount of correction that the PI loop can provide Range is from 0 fully counter clockwise to 100 fully clockwise 100 signal corresponds to 10V or 20mA depending upon j...

Страница 7: ...power down the module and repeat the process above The Teach Input is also used to select the polarity of the integral component In Unipolar mode the integral component is positive only and thus can only add to the Summing signal In Bipolar mode the integral component can be positive or negative and can add or subtract to the Summing Signal Note that the unipolar bipolar mode only reflects the pol...

Страница 8: ...ections 1 Make connections per drawing C13703 on page 19 Initially there should be no connection on the Teach input on terminal 12 Step 3 Initial Setup 1 Initial commissioning should be performed without product in the machine 2 Set Prop Gain potentiometer fully counter clockwise Set all other potentiometers to 8 turns clockwise If the current positions are unknown or in doubt rotate potentiometer...

Страница 9: ...adjustment Step 6 PI Trim 1 Manually force the dancer or loadcell feedback sensor so it is in the speed up state 2 Enable the PI loop by closing the contact across terminals 10 11 Verify that the module output increases and causes the follower drive to increase in speed 3 Likewise manually force the dancer or loadcell feedback sensor so it is in the slow down position and verify that the follower ...

Страница 10: ...V on J2 and use output terminals 7 OUTPUT and 8 VOLTAGE RETURN If a Current output is desired select I on J2 and use output terminals 7 OUTPUT and 9 CURRENT RETURN Step 2 Connections 1 Make connections per drawing C13703 on page 19 Initially there should be no connection on the Teach input on terminal 12 Step 3 Initial Setup 1 Initial commissioning should be performed with the smallest winder core...

Страница 11: ...ep 6 Select Bipolar Integral 1 Wait at least one minute after applying power to the module and place a jumper from the Teach input terminal 12 to circuit common terminal 11 Step 7 Speed Match 1 Ensure the enable contact between terminals 10 11 is open 2 Enable the lead and takeup drives Run the lead drive up to maximum desired speed The line speed reference signal that is connected to the Summing ...

Страница 12: ...eed is 108 Ft Min 6 Stop all drives Step 9 Tune 1 Set Prop Gain potentiometer approx 8 turns clockwise 2 Load material and run machine For dancer systems adjust the Setpoint potentiometer to set the desired operating position of the dancer For loadcell systems adjust the Setpoint potentiometer until the desired tension level is achieved 3 If necessary adjust the Prop Gain and Integral Time potenti...

Страница 13: ...e output terminals 7 OUTPUT and 8 VOLTAGE RETURN If a Current output is desired select I on J2 and use output terminals 7 OUTPUT and 9 CURRENT RETURN Step 2 Connections 1 Make connections per drawing C13703 on page 19 Initially there should be no connection on the Teach input on terminal 12 Step 3 Initial Setup 1 Initial commissioning should be performed with the smallest core that will ever be us...

Страница 14: ... apply the other extreme signal either no load of full load that should cause the follower drive to decrease in speed 5 Disconnect the Teach input terminal 12 from circuit common terminal 11 Step 6 Select Unipolar Integral 1 Ensure there is no jumper between terminals 11 and 12 Step 7 Speed Match 1 Ensure the enable contact between terminals 10 11 is open 2 Enable the lead and letoff drives Run th...

Страница 15: ...ing the feedback levels in the opposite order 5 With the feedback sensor in the speed up state wait until the PI output saturates stops increasing and adjust the PI Trim potentiometer until the letoff drive surface speed is approximately 10 faster than the MaximumSurfaceSpeed 6 Stop all drives Step 9 Tune 1 Set Prop Gain potentiometer approx 8 turns clockwise 2 Load material and run machine For da...

Страница 16: ...minal 11 3 Apply the other extreme feedback signal level either minimum or maximum to terminal 4 and disconnect the Teach input terminal 12 from circuit common terminal 11 Step 5 Select Unipolar or Bipolar 1 If bipolar operation is desired wait at least one minute after the unit has been powered and place a jumper from the Teach input terminal 12 to circuit common terminal 11 No connection on term...

Страница 17: ...17 4 Prints 6 6 6 6 ...

Страница 18: ...18 ...

Страница 19: ...19 ...

Страница 20: ...20 ...

Страница 21: ...aintained perform in compliance with such system s written specifications for a period of one 1 year from the date of shipment of such system As the Purchaser s sole and exclusive remedy under said warrant in regard to such systems including but not limited to remedy for consequential damages the Company will at its option cause without charges any such system to so perform which system is found t...

Страница 22: ...3204 Rocky River Road Heath Springs SC 29058 Phone 803 286 8614 Fax 803 286 6063 Email saleserv carotron com Web www carotron com MAN1056 00 Rev C Issued 05 09 2019 ...

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