Tension Control Inverter MD330 User Manual
Contents
1. Maintenance time and content Failure information personnel Maintenance2. to 5 and 1000H shall be set between 0 and 10000 which shows the maximum tension is between 0 and 100 Tension ON 30000N setting When FH 04 is 0 the tension controlled by inverter is determined by the parameter maximum ON 30000N tension If FH 04 selects analog value control or pulse control as tension source the parameter determines the corresponding tension for maximum value of analog value or pulse Zero speed 0 0 50 0 tension increase Set the tension of the system when it is at zero speed It is mainly for overcoming static friction when startup or keep certain tension when the system is at zero speed If the control tension is small and it is hard to start it is allowed to properly increase the setting value of the parameter zero speed 0 0 20 maximum threshold frequency When the running speed of the inverter is below the set speed of the parameter it is considered that the inverter is under zero speed operation status 24 Chapter 4 Parameter Description The parameter is only used for wind up control For the wind up control sometimes it is needed to reduce the tension while increasing the curling radius to ensure a good curling of the material Formula of tension taper F F0 1 K 1 D0 D1 D D1 Wherein F is the actual tension FO is the setting tension DO is the diameter of winding shaft D is the actual curling radius D1 is the taper compensation correction of FH
3. torque gain When FH 46 is set as 1 this parameter can be used to adjust the torque limit upon pre drive and to get large or small tension according to the system control demand 4 8 Additional parameters This section describes the additional parameters for the auxiliary control part according to the actual use demand The parameters in this section are quite dispersing 0 FH 09 setting 1 Al1 setting tension taper source 2 Al2 setting 3 Al3 setting Select the setting mode of the tension taper When analog setting is selection selected the settable range is 0 100 tension close loop control adjustment 0 0 100 0 0 1 50 0 limit Set the PID regulator output limit in tension close loop control mode The limit is corresponding to the speed of the whole system tension close loop control adjustment 0 0 100 0 0 1 0 0 limit offset Set the offset of the PID regulator output limit in tension close loop 39 Chapter 4 Parameter Description control mode If the value is 0 when the system is at zero speed the regulator will be inactive Proper offset value shall be set to avoid this problem high speed torque 50 0 50 0 0 1 0 0 compensation coefficient It is useful for tension open loop control torque mode Some system has different resisting forces at high speed and at low speed It is impossible to achieve constant tension for the whole process with the con
4. 1mm 10000mm 1mm 14 radius 1 initial curling FH 15 1mm 10000mm 1mm radius 2 initial curling FH 16 1mm 10000mm 1mm 1 m radius 3 curling radius FH 17 ne 0 0s 100 0s 0 1s 1 0s filtering time current value FH 18 of curling 1mm 10000mm radius Relevant parameters for curling radius calculation with thickness accumulation Number of FH 19FH 19 pulses each 1 60000 1 1 o turn Number of FH 20 turns each 1 10000 1 1 o layer 10 Chapter 3 Function Parameter Table A Leave fa Function Set range ctory set code value 0 Digital settin Material 9 g i 1 Ali setting FH 21 thickness 1 0 o x 2 Al2 setting setting source 3 AI3 setting FH 22FH Material 0 01mm 100 00 0 01 0 01mm o 22 thickness 0 mm mm Material 0 01mm 100 00 0 01 FH 23 0 01mm o thickness 1 mm mm Material 0 01mm 100 00 0 01 FH 24 0 01mm o thickness2 mm mm Material 0 01mm 100 00 0 01 FH 25 0 01mm o thickness 3 mm mm maximum 0 01mm 100 00 0 01 FH 26 1 00mm o thickness mm mm Line speed input p art 0 No input 1 AN 2 AI2 FH 27FH line speed 3 AI3 27 input source 4 pulse input 5 communication setting FH 28FH maximum line 0 10m Min 6500 0 1m 1000 0m 28 speed Om Min Min Min 11 Chapter 3 Function Parameter Table a Leave fa Function Set range ctory set code value minimum line speed for 0 10m Min 6500 0
5. the function code if it is valid the set of the actual curling mode is opposite to the function code The relationship between tension direction and wind up roll down The direction of tension is fixed as the direction of wind up tension which is consistent with the running direction under non tension control For the switching of wind up roll down it only needs to change FH 01 or use wind up roll down switching terminal rather than change the 21 Chapter 4 Parameter Description forward reverse running commands Note During the roll down control the direction of the force is opposite to the running direction of the system For the no load operation the running direction is also opposite to the direction of normal roll down 0 Not allowed Active inverse material take up Selection of is not allowed during startup inverse take up 1 alowed during roll down A Active inverse material take up is a lowed during startup When selecting roll down control whether support active take up of material through inverse running of motor If not allowed is selected during the roll down control the inverter can only output torque when material is running forward During the roll down the frequency for inverse take up can be limited by setting the upper limit frequency mechanical 0 01 300 00 transmission ratio Mechanical transmission ratio motor rotation speed winding shaft rotation speed The mechanical transm
6. 0m Min speed The parameter will display actual line speed on line 31 Chapter 4 Parameter Description 4 5 Tension compensation It is only relevant to the open loop torque mode When the tension control adopts open loop torque mode during the system acceleration deceleration additional torque shall be provided to overcome the rotation inertia of the whole system Otherwise too small tension upon wind up acceleration and too large tension upon deceleration or too large tension upon roll down acceleration and too small tension upon deceleration will be caused compensation coefficient self 5 0 80 0 0 1 20 0 learning torque setting It is used to set the torque used for inertia compensation self learning This function is reserved for the current version 0 no operation compens j 1 Start to identify ation self i 3 automatically restore to earnin 2 0 when the self learning action is ended Set the inertia compensation operation method 0 no operation 1 Start to identify Press RUN key to start inertia identification Note At this time the inverter operates in panel control mode This function is reserved for the current version 32 Chapter 4 Parameter Description mechanical inertia compensation 1 10000 1 coefficient It is used to compensate the rotation inertia of the system including inertia of the motor rotation system and the shaft Such inertias are fixed
7. 59 set tension and K is the tension taper The taper compensation correction of tension can delay the reduction curvature of tension 4 3 Curling radius calculation Curling radius is the necessary parameter in the curling control For the two tension control modes open loop torque mode controls the output torque through curling radius close loop speed mode obtains the line speed matched output frequency through curling radius 25 Chapter 4 Parameter Description 0 zalculation through line sped 1 Zalculation through curling radius thickness accumulation 2 AI input 3 M2 input 4 MI3 input 5 pulse input calculation method selection 0 Calculate based on line speed Refer to the following description of line speed input for the resource of line speed The inverter can calculate the curling radius based on the line speed and its output frequency which features that it does not need to consider the thickness of the material while it is able to obtain the accelerated speed of the system 1 Calculated according to thickness accumulation It is required to set the thickness of the material The inverter calculates the total curling radius on the basis of winding count signal with increase for wind up and decrease for roll down For the relevant function refer to the parameter related to curling radius of thickness accumulative calculation 2 Alf input4 AI3 input 3 Al2 input 5 PUSLE input When tes
8. is stopped upon pre drive In general the curling radius calculation shall be stopped curling radius calculation stop 0 0s 10 0s 0 1s 5 0s delay after ending of pre drive If curling radius calculation is stopped upon pre drive this function code will decide when the curling radius calculation starts after the pre drive is ended so as to prevent the curling radius causing too large fluctuation at the instant of the pre drive ending tension 0 0 200 0 0 1 50 0 increase ratio 41 Chapter 4 Parameter Description When the tension increase terminal is active the tension controlled by the inverter will be increased according to the parameter 0 Alfsetting 1 Al2 setting 2 AI3 setting 3 pulse setting line speed setting source hit 4 communication setting It is relevant to the situation when FH 00 is set as 4 line speed control mode For details please refer to the description of FH 00 taper compensation 1mm 10000mm 1mm correction It is the auxiliary parameter for tension taper control For details please refer to the description of FH 09 tension taper effectiveness a 0 taper effective selection for 1 taper ineffective close loop tension control This function code decides whether the tension taper will be effective upon close loop tension control In general when the control adopts roll feedback it is unnecessary for the tension taper to have influence ove
9. radius 1 stop 1 0 calculation i calculation selection curling radius calculation stop delay 0 0s 10 0s 0 1s 5 0s after ending of pre drive tension 0 0 200 0 0 1 50 0 increase ratio 0 AI1 setting 1 Al2 setting A 2 AI3 setting line speed 5 3 pulse setting 1 setting source communication setting taper compensation Imm 10000mm 1mm correction 16 ___ Chapter 3 Function Parameter Table ___ ___ _ Leave fa Function Set range ctory set code value tension taper effectiveness 0 taper effective selection for 1 taper close loop ineffective tension control input output selec ion BIT13 curling operation F7 04F7 radius display 04 BIT14 tension selection setting BIT10 tension setting BIT11 curling radius When switching to display the F7 05F7 stop display curling radius 05 selection during the stop the curling radius can be changed by the UP DOWN terminal or relevant button 17 ___ Chapter 3 Function Parameter Table ___ ___ _ Leave fa Function Set range ctory set code value 12 external taper control output 13 curling radius output F5 07 F5 0 100 analog output 09F5 07 i corresponds to selection F5 09 0 maximum curling radius 14 actual tension after taper calculation DI1 terminal 31 curling radius F4 00F4 00 function reset x selection 32 initial c
10. 1m 200 0m curling radius Om Min Min Min calculation Actual line 0 10m Min 6500 FH 30 speed Om Min Tension compensatic n part compensation FH 31FH coefficient self 5 0 80 0 0 1 20 0 learning torque setting 0 no operation 1 Start to identify compensation automatically self learning 1 restore to 0 when action the self learning is ended mechanical FH 33FH inertia 1 10000 1 33 compensation coefficient 0 material 1Kg FH 34 Kg m 3 60000K OKg m3 density m3 g m43 FH 35 material width Omm 60000mm 1mm omm o 12 ___ Chapter 3 Function Parameter Table ___ ___ _ Leave fa Function Chan Set range ctory set code value friction FH 36 compensation 0 0 50 0 1 0 0 coefficient material supply interrupt auto dei sction parameters material supply interrupt auto FH 37FH 0 inactive detection 37 1 active function selection material supply interrupt auto detection 0 00Hz 50 00Hz minimum FH 38FH 38 frequency material supply interrupt auto 0 1 50 0 detection error range material supply interrupt auto 0 1s 60 0s detection judgment delay the second group of PID parameters FH 41FH proportional 41 gain 2 FH 42 integral time 12 0 01s 10 00s 0 01s 2 00s o 0 0s 100 0s 0 1 20 0 o 13 ___ Chapter 3 Function Parameter Table ___ ___ _ Leave fa Functi
11. Inovance Tension Control Inverter MD330 User Manual VER 0 0 Contents Chapter 1 Overview sea oyona owiana aaa nennen GG 1 Chapter 2 Tension Control Principles 2 2 1 Schematic diagram for typical curling tension control 2 2 2 Tension control scheme 3 Chapter 3 Function Parameter Table 7 Chapter 4 Parameter Description oeeeee aaa aaa aaa anna aaa 20 4 1 Selection of Control Mode 20 42 Tension Setting 4 ne 23 4 3 Curling radius calculation 25 4 4 Line speed input asza een 30 4 5 Tension compensation 32 4 6 PID parameters i 5322 35 4 7 Auto roll alternation parameter u 2244 ernennen 38 4 8 Additional parameters 39 Chapter 1 Overview Chapter 1 Overview This manual shall be used together with the MD320 User Manual This manual only describes the parts related to curling tension Other basic functions are described in MD320 User Manual When the tension control mode is set as inactive the inverter has the same functions are the MD320 MD330 is used for curling control It can automatically calculate the curling radius and is able to realize constant tension when the curling radius changes To realize constant torque control in the applications without curling radius change MD320 inverter is recommended When the tension control mode is selected the outpu
12. and independent of the curling radius This parameter can be obtained automatically by compensation coefficient self learning this function is reserved for the current version or manually set Upon empty roll or small roll if the material tension reduces during the acceleration increase the coefficient Otherwise the coefficient shall be decreased material OKg m 3 60000Kg m43 1Kg m43 OKg m 3 density material Omm 60000mm 1mm Omm width The two parameters are relevant to the material inertia compensation The inverter will automatically calculate the material inertia compensation value according to the parameter and the curling radius friction compensation 0 0 50 0 0 1 0 0 coefficient Take wind up as an example Because of the frictional resistance the material tension reduces which is more obvious upon small roll and the tension will be nonlinear This situation can be improved by setting the parameter 33 Chapter 4 Parameter Description Material supply interrupt auto detection parameters It is an auxiliary function The material supply interrupt cannot be detected in all the situations If good result cannot be achieved material supply interrupt auto 0 inactive detection function 1 active selection material supply interrupt auto 0 1 10000 0 200 0m z a 0 1m Mi detection minimum m Min Min line speed material suppl PRY 0 1 50 0 interrupt auto 9 0 1 10 0 detection error ran
13. e terminal is inactive the inverter operates in tension control mode 35 Turn calculation signal When calculating the curling radius with the thickness accumulation method this signal is used to calculate the turns of the shaft rotation 36 37 reserved 38 wind up roll down switching When the terminal is active the actual curling mode is the inverted setting of FH 01 39 Curling radius calculation stop terminal It is used when it is necessary to pause the calculation of the curling radius 40 41 thickness selection terminal used to select the setting source for digital setting thickness 42 Tension control disable terminal When this terminal is active it is equivalent to the situation that FH 00 is set as 0 43 Tension increase terminal When this terminal is active the control tension will be increased according to the proportion set in FH 57 12 external taper control ot tput analo g 15 curling radius output F5 07 F output 100 corresponds to 1 0 5 09 selectio f 0 maximum curling radius n 14 actual tension after taper ca culation 44 I E SS Inovance Warranty Ag reement 1 The warranty period of the product is 18 months refer to the barcode on the equipment body During the warranty period if the product fails or is damaged under the condition of normal use by following the instruction Our company will be responsible for free maintenance Within the warranty per
14. ers is only related to the close loop speed mode proportiona 0 0s 100 0s 0 1 20 0 I gain 2 integral 3 0 01s 10 00s 0 01s 2 00s time 12 differential 0 000s 1 000s 0 001s 0 000s time D2 This is the second group of parameters FA 05 FA 06 and FA 07 belong to the first group of PID parameters Best result can be achieved in different conditions by setting the two groups of parameters 35 Chapter 4 Parameter Description 0 Only the first group of PID parameters are used auto 1 Adjust according adjustment to the curling radius basis for PID 2 Adjust according parameters to the operating frequency 3 Adjust according to the line speed Select auto adjustment basis for PID parameters 0 Only the first group of PID parameters is used and the second group is inactive 1 Adjust according to the curling radius The first group of PID parameters is used for empty roll while the second group of PID parameters is used for full roll The PID parameters change continuously during the process 2 Adjust according to the operating frequency this first group of PID parameters is used upon zero speed while the second group of parameters is used upon maximum frequency The PID parameters change continuously during the process 3 Adjust according to the line speed this first group of PID parameters is used upon zero speed while the second group of parameters is used upon maximum line speed The PID
15. ge after proper effort set FH 37 to 0 1 in 1 material supply interrupt auto WE 0 1 60 0s 0 1s 2 0s detection judgment This group of parameters is used for the inverter to automatically detect the material supply interrupt It is difficult to conduct auto material supply interrupt detection Only when line speed is used for curling radius calculation can the inverter have the material supply interrupt detection basis The inverter will detect the material supply interrupt according to the abnormal change of curling radius By adjusting FH 38 FH 39 and FH 40 mistaken report can be prevented and adjustment can be made for the detection sensitivity to achieve good result ERR24 34 Chapter 4 Parameter Description failure will be reported by the inverter after material supply interrupt is detected FH 37 When it is set as 0 the material supply interrupt auto detection function is inactive FH 38 Only when the line speed is higher than the value can the material supply interrupt be detected FH 39 Only when the abnormal change of the curling radius exceeds this range can the material supply interrupt be detected FH 40 Only when the lasting time of the abnormal change of the curling radius exceeds this delay can the material supply interrupt be detected When the above three conditions are satisfied simultaneously the inverter reports ERR24 material supply interrupt failure 4 6 PID parameters This group of paramet
16. he principle for tension control in open loop torque mode The reason for its feasibility is that the tension of the material is from the torque of the wind up roll only and the torque of the wind up roll is mainly imposed on the materials The MD series inverter can correctly control the output torque of the motor in closed loop vector mode with speed sensor vector control However to use this control mode encoder must be installed the inverter shall be equipped with PG card 2 Function modules related to open loop torque mode 3 Chapter 2 Tension Control Principles 1 Tension setting part It is used to the set the tension In practice the set value of the tension shall correspond to the actual situations such as the materials used and the curling requirements The relevant value shall be set by the user The tension taper can control the tension to decrease with the increase of the curling radius so as to improve the curling effect 2 Curling radius calculation part It is used to calculate or acquire the curling radius information If line speed is used to calculate the curling radius the line speed input function part is needed If thickness accumulation is used to calculate the curling radius the relevant function part for calculating curling radius with thickness accumulation shall be used 3 Torque compensation part Part of the output torque of the motor will be used to overcome the rotation inertia of the wind up roll dow
17. iod maintenance will be charged for the damages caused by the following reasons A The damage caused by improper use or repair modification without prior permission B The damage caused by fire flood abnormal voltage other disasters and second disaster C The damage caused by dropping or transportation after the purchase D The damage caused by the improper operation E The damage or failure caused by the trouble out of the equipment e g external device If there is any failure or damage to the product please correctly fill out the Product Warranty Card in detail The maintenance fee is charged according to the newly adjusted Maintenance Price List by our company In general the warranty card will not be re issued Please keep the card and present it to the maintenance personnel when asking for maintenance If there is any problem during the service please contact the agent of our company or our company directly This agreement shall be interpreted by Shenzhen Invoance Technology Co Ltd Shenzhen Invoance Technology Co Ltd Service Department Address Block E Hongwei Industry Park Liuxian Road Baocheng No 70 Zone Bao an District Shenzhen Tel 0755 29619910 Postal code 518101 a a4 Product Warranty Card Inovance Add of unit Customer Name of unit Contact person information P C Tel Product model Product Body barcode Attach here information Name of agent
18. ission ratio must be correctly set during the tension control 22 Chapter 4 Parameter Description 4 2 Tension setting This part is only related to the open loop torque mode The close loop speed mode is set through PID setting source Please refer to the description of FA function code in MD320 User Manual 0 FH 05 setting 1 Ali setting 2 Al2 setting 3 AI3 setting 4 PULSE input setting Tension setting source 5 communication setting The parameter determines the control source of tension 0 The tension is set with number The specific number is set in FH 05 1 AM 2 Al2 3 AI3 The tension is set by analog value which is just like the general potentiometer If set the tension through analog value the maximum tension must be set In general the maximum value set by analog value corresponds to the maximum tension 4 The tension is set through pulse input Pulse input terminal must be DI5 terminal If set the tension through pulse the maximum tension must be set In general the maximum value set in maximum pulse corresponds to the maximum tension 5 communication setting If perform the control with upstream equipment the tension can be set by communication There are two ways to realize communication setting of tension 1 Change reference value of FH 05 then FH 04 shall be set to 0 2 Set 23 Chapter 4 Parameter Description the tension through communication address 1000H FH 04 shall be set
19. n Parameter Table 3 Leave fa Function Set range ctory set code 0 Not allowed Active inverse material take up Selection of is not allowed FH 02FH inverse during startup 02 take up during 1 allowed roll down Active inverse material take up is allowed during startup mechanical transmission 0 01 300 00 ratio Tension setting part 0 FH 05 setting 1 Ali setting 2 AI2 setting FH 04FH Tension setting 3 Al3 setting 04 source 4 PULSE input setting 5 communication setting FH 05FH 05 Tension setting ON 30000N 1 0 x ___ Chapter 3 Function Parameter Table __ __ __ Function Set range code EE maximum tension Zero speed FH 07 tension 0 0 50 0 1 0 0 increase B a Leave fa ctory set value 0 0 20 zero speed FH 08 maximum 0 threshold frequency FH 09FH tension taper 0 0 100 0 0 0 Curling radius calculat on part FH 11FH maximum 1mm 10000mm 11 curling radius winding shaft FH 12 1mm 10000mm diameter 0 calculation through line speed 1 Calculation curling radius through FH 10FH calculation thickness 1 10 method accumulation selection 2 AN input 3 AI2 input 4 AI3 input 5 pulse input so gt a 100 Chapter 3 Function Parameter Table 3 Leave fa Function Set range ctory set code 0 FH 12 FH 15 FH 13 wd curling setting radius source 1 AI1 setting 2 AI2 setting 3 Al3 setting FH 14FH initial curling
20. n roll during the acceleration deceleration The inertia compensation part of the inverter can be automatically compensated automatically according to the acceleration deceleration rate through proper parameter setting so that the system can still have stable tension during the acceleration deceleration The friction compensation can eliminate the influence of the system resisting force over the tension 3 Close loop speed control mode Close loop means that the tension position detection feedback signal forms a close loop for adjustment Speed control mode means that the inverter realizes the control by adjusting the output frequency according to the feedback signal The inverter under speed mode can operate in 4 Chapter 2 Tension Control Principles any of the following three modes speed sensorless vector control speed sensor vector control and V F control The principle for the control mode is as follows calculate a set value for the matching frequency f1 according to the material line speed and the actual curling radius conduct PID operation through the tension position detection signal to generate a frequency adjustment value f2 and then output the final frequency f f1 f2 f1 can basically match the line speed of the wind up roll down roll with the material line speed and then the control requirement can be met with the slight adjustment of f2 In this way the problem between the response quickness and the control stabilit
21. on Set range ctory set code value differential time 0 001 FH 43 0 000s 1 000s 0 000s o D2 s 0 Only the first group of PID parameters are used 1 Adjust auto according to the adjustment curling radius FH 44 1 0 o basis for PID 2 Adjust parameters according to the operating frequency 3 Adjust according to the line speed Auto roll alternation parameter 0 F2 09 setting pre drive NE a FH 46 torquelimit 90t me Imt 4 0 o according to selection tension setting FH 47FH pre drive 50 0 50 0 0 1 0 0 o 47 torque gain 14 Function code FH 48 FH 49FH 49 FH 50 Chapter 3 Function Parameter Table tension taper source selection tension close loop control adjustment limit tension close loop control adjustment limit offset high speed torque compensation coefficient Leave fa Set range ctory set 0 FH 09 setting 1 Ali setting 2 AI2 setting 3 AI3 setting 0 0 100 0 0 0 100 0 50 0 50 0 compensation basis 0 frequency 1 line speed external taper control maximum output setting source 0 FH 54 setting 1 Ali setting 2 Al2 setting 3 Al3 setting 15 Function code Chapter 3 Function Parameter Table Leave fa Set range ctory set ge value external taper control maximum 0 0 100 0 0 1 100 0 output digital setting FH 56FH 56 pre drive 0 calculate curling
22. parameters 36 Chapter 4 Parameter Description change continuously during the process 37 Chapter 4 Parameter Description 4 7 Auto roll alternation parameter pre drive 50 0 50 0 0 1 speed gain When conducting roll alternation during the operation to avoid causing too large shock it is necessary to rotate the wind up roll roll down roll in advance and the rotating line speed shall be consistent with the line speed of the materials in operation This is the pre drive function When the pre drive terminal is active the inverter will automatically calculate the output frequency according to the measured line speed and curling radius so as to match the line speed This parameter can adjust the line speed matching relation When it is set as a negative value the surface speed of the pre drive roll will be lower than the line speed of the material in operation Upon pre drive it is necessary to pause the curling radius calculation use the curling radius calculation stop terminal or set the function code FH 55 to 1 0 F2 09 setting pre drive torque 1 Set the limit limit selection according to tension setting It is used to select the torque limit setting mode upon pre drive When it is set as 1 the output torque can be limited according to the tension setting and the current curling radius It is used together with FH 47 38 Chapter 4 Parameter Description pre drive 50 0 50 0 0 1 0 0
23. r control 3 Close loop speed mode Tension test and feedback are required The inverter controls output frequency through PID close loop to enable the set tension is met The inverter controls output frequency through speed sensorless vector control V F control or close loop vector control 4 Close loop speed mode Tension test and feedback are required 20 Chapter 4 Parameter Description The inverter controls output torque through PID close loop to enable the set tension is met The inverter controls output torque through close loop vector control mode with speed sensor vector control 5 Constant line speed control mode A special application to realize constant line speed control without PID adjustment which is more stable than general close loop control and applicable to the field requiring smooth operation rather than fast line speed adjustment It controls inverter output frequency through set line speed and current curling radius The calculation of curling radius is the same with that of other tension control modes Typical application FH 58 selects line speed set mode to set target line speed FH 27 adopts actual line speed test FH 10 calculates line speed through calculating curling radius meer km dT mode 1 roll down The curling mode selection can be combined with the switching terminal of wind up and roll down If the switching terminal of wind up and roll down is inactive the set of actual curling mode is the same with
24. r the roll setting position PID reference However it will be effective on the external taper output because it is used for the control proportion valve to adjust the tension Input output selection when the inverter is the tension control inverter the following functions are the supplementary for the 42 Chapter 4 Parameter Description functions of the multi function terminals of the MD320 inverter polo 31 curling radius function selection reset en 32 initial curling function selection radius selection function selection 33 initial curling DI4 terminal radius selection Fe 34 Pre drive function selection Command terminal DI6 terminal 35 turn counting DI7 terminal 36 Torque memory Faas De eee 37 torque memory DI8 terminal enable F4 07 38 wind up function selection z DI9 terminal roll down switching F4 08 39 curling radius function selection calculation stop 40 thickness selection terminal 1 41 thickness selection terminal 2 DI10 terminal function selection 42 tension control disable terminal 43 tension increase terminal 31 curling radius rest when replacing with a new roll the curling radius shall be reset to initial curling radius 43 Chapter 4 Parameter Description 32 33 Initial curling radius selection terminal used to select the initial curling radius value 34 Pre drive command terminal When the terminal is active the inverter operates in pre drive mode When th
25. ration frequency of traction constant speed inverter The operation frequency of traction inverter corresponds with the line speed in linear It only needs to set the maximum line speed FH 28 to the corresponding line speed of maximum frequency of operation frequency of traction constant speed inverter 0 Nc input 1 Al line speed 2 Al input source 3 Al 4 pu se input 5 co nmunication setting Line speed input source Used as the way or channel for obtaining line speed 0 No input 1 Al1 2 Al2 3 Al3 Obtain line speed through analog input port 4 Obtain line speed through pulse input 5 Obtain line speed through communication method 30 ___ Chapter4 Parameter Description 0 1 maximum m Min 6500 0m 0 1m Min 1000 0m Min line speed IMin When obtaining line speed through analog input the maximum line speed must be correctly set The maximum value of analog input corresponds with the value minimum line speed for curling m Min 6500 0 1m Min 200 0m Min radius calculation m Min Set the minimum speed for starting calculation of curling radius When the inverter detects that the line speed is lower than the value inverter will stop curling radius calculation Correct setting of the value will effectively avoid great deviation of curling radius calculation when the speed is reduced In general the value shall be set to over 20 of maximum line speed Actual line 0 1 m Min 6500
26. s obtaining through thickness accumulation calculation it is related to the parameter 0 number ot pulses each um soon It represents pulse number generated by turn counting signal when winding shaft turns a round FH 20 lumber of turns each layer 1 10000 1 It shows the rounds of winding shaft turning after the material wraps one layer It is used for wire 0 FH 22 setting Material thickness 1 AI1 setting setting source 2 Al2 setting 3 AI3 setting Set the source of material thickness 0 Set the material thickness with number in FH 12 FH 25 1 AI 2 Al2 3 AI3 Confirm the material thickness through input channel set by analog value FH 22 Material thickness 0 0 01mm 100 00mm 0 01mm FH 23 Material thickness 1 0 01mm 100 00mm 0 01mm FH 24 Material thickness 2 0 01mm 100 00mm 0 01mm FH 25 Material thickness 3 0 01mm 100 00mm 0 01mm Set the material thickness with number and select the terminal code and thickness setting through material thickness 29 Chapter 4 Parameter Description When the material thickness is analog input the maximum analog input corresponds to the maximum thickness 4 4 Line speed input If curling radius source selects line speed calculation or tension control mode as close loop speed mode it is required to obtain correct line speed signal In general the convenient way for obtaining line speed is through analog output of ope
27. stant friction compensation torque only The influence of the system can be compensated by properly setting this parameter This parameter is presented as the percentage of the rated torque are basis 1 line speed It is used together with FH 51 to select the basis of high speed torque compensation external taper 0 FH 54 setting control 1 AI setting maximum 2 Al2 setting output setting 3 AI3 setting source This function brings much convenience to the user The AO output of the inverter can be set as the external taper output and the inverter can adjust the external taper output according to the current tension proportion to control the external execution parts such as the control proportion valve so as to realize the purpose of controlling the tension 40 Chapter 4 Parameter Description taper When the roll is used as tension feedback what the inverter controls is the position of the roll rather than the tension of the material The tension control is decided by the force of the roll This function code is used to select the maximum output setting mode 0 set by FH 54 1 2 3 select to be controlled by analog input external taper control maximum a 0 0 100 0 0 1 100 0 output digital setting When FH 54 is set as O the initial output is set by the function code pre drive curling 0 calculate radius calculation 1 stop selection calculation Select whether the curling radius calculation
28. t frequency and torque of the inverter will be automatically generated by the tension control function and the frequency source selection in group FO will be inactive Chapter 2 Tension Control Principles Chapter 2 Tension Control Principles 2 1 Schematic diagram for typical curling tension control Carry over pinch roll Wind up Fig 1 without tension feedback Carry over pinch roll Float Wind up Fig 2 With float roll tension feedback Chapter 2 Tension Control Principles 2 2 Tension control scheme There are two ways for tension control to control the output torque of the motor and to control the rotation speed of the motor MD330 is designed with two tension control modes for the two methods 1 Open loop torque control mode Open loop means that there is no tension feedback signal and the inverter can realize the control through the output frequency or torque only which will not be affected if the inverter is in open loop vector mode or close loop vector mode The torque control mode means that the inverter controls the motor s torque rather than its frequency and the output frequency changes automatically following the speed of the materials According to the formula F T R where F is the material tension T is the torque of the wind up roll R is the curling radius if the torque of the wind up roll can be adjusted based on the change of the curling radius the tension of the materials can be controlled This is t
29. ting the curling radius with curling radius test sensor the parameter selects the input channel of curling radius sensor maximum 1mm 10000mm 1 500 curling radius 26 Chapter 4 Parameter Description When curling radius source FH 10 selects 2 3 4 5 the parameter must be set The maximum input corresponds to the maximum curling radius When the inverter calculates its curling radius the calculation will be limited by the parameter winding shaft 1mm 10000mm 1 100 diameter Set the diameter of the winding shaft If the parameter is not properly set and the curling radius of the inverter is lower than the set value the diameter will be limited by the parameter 0 FH 14 FH 16 SA setting initial curling FH 13 1 Al setting 1 0 radius source 2 AI2 setting 3 AI3 setting Select the input channel of initial curling radius 0 It is allowed to set three initial curling radii with number for FH 14 FH 16 1 Al1 2 Al2 3 AI3 the initial curling radius is determined by analog value Select different ports for analog input When roll down select one terminal as initial curling radius Select terminal 1 connect to COM and set initial curling radius in FH 14 Then when resetting the curling radius it can be reset to the initial curling radius of roll down Note The initial value of curling radius can be determined through two multi function terminals For example select DI3 DI4 ports to determine the
30. ulated by the inverter is different from the actual curling radius it indicates that there is deviation in the line speed input The line speed input can be corrected through the curling radius calculation result It should be noted that the matching frequency calculated with the line speed and the curling radius is not the actual output frequency of the inverter while operating frequency used in calculating the curling radius with the line speed and operating frequency is the actual output frequency of the inverter There is no contradiction in logic 4 The second group PID parameter part Only one group of PID parameters is not sufficient for the whole process control At this time the second group of PID parameters can be used For example during partial wind up the first group of PID parameters can be used to achieve good control result during full wind up the second group of PID parameters can be used to achieve good control result In this way good control result can be achieved in the whole process Chapter 3 Function Parameter Table Chapter 3 Function Parameter Table 7 Leave fa Function Set range ctory set code value Control mode selection 0 inactive 1 Open loop torque control mode 2 Close loop speed control FH 00FH Tension 00 control mode mode 3 Close loop torque control mode 4 Constant line speed control mode FH 01FH 0 wind up Curling mode 1 01 1 roll down Chapter 3 Functio
31. urling DI2 terminal radius selection function terminal 1 x selection 33 initial curling DI3 terminal radius selection F4 02 function terminal 2 M selection 34 Pre drive DI4 terminal input terminal F4 03 function 35 turn counting Z selection Signal DI5 terminal 36 Torque F4 04 function memory x selection 37 torque 18 ___ Chapter 3 Function Parameter Table ___ ___ _ Leave fa Function Set range ctory set code value DI6 terminal F4 05 function selection DI7 terminal function x selection DI8 terminal function x selection DI9 terminal function selection DI10 terminal function selection 19 Chapter 4 Parameter Description Chapter 4 Parameter Description 4 1 Selection of Control Mode 0 inactive 1 Open loop torque control mode 2 Close loop speed control Tension mode control mode 3 Close loop torque control mode 4 Constant line speed control mode 1 Select the tension control mode with the parameter 1 Don t choose tension control mode The tension control is inactive and the inverter is used as general inverter 2 Open loop torque control mode No tension test and feedback is required The inverter controls the tension of the material through controlling output torque The output torque controlled by inverter can realize better control under the speed sensor vecto
32. value of initial curling radius Set DI3 port parameter F4 02 to 27 Chapter 4 Parameter Description 32 select terminal 1 as initial curling radius and DI4 port parameter to 33 select terminal 2 as initial curling radius The selection of initial curling radius is as follows Initial curling radius DI4 DI3 source 0 0 Determined by FH 12 0 1 Determined by FH 14 1 0 Determined by FH 15 1 1 Determined by FH 16 When the initial curling radius does not count from the hollow curling radius use the function The initial curling radius is FH 12 by default i e hollow curling radius initial curling 1mm 10000mm 100mm radius 1 initial curling 1mm 10000mm 100mm radius 2 initial curling 1mm 10000mm 100mm radius 3 Set three different initial curling radii and confirm them through multi function terminal FH 17 c rling radius filtering time 0 0s 100 0s 1 0s Lengthen curling radius filtering time to avoid fast change of curling radius calculation or input result FH 18 current value of curling radius 1mm 10000mm Real time display of current curling radiuslt is able to know the current actual curling radius through the parameter Also set the start curling 28 Chapter 4 Parameter Description radius by modifying the parameter Relevant parameters for curling radius calculation with thickness accumulation Only when setting curling radius source FH 10 to 1 that i
33. y in close loop control can be well solved In this mode the tension setting part is inactive and the target value of the system control is set in the FA OOPID reference source The control result is that the tension position feedback signal will be the reference value of the PID It should be noted that when using the position signal e g tension swing float roll as the feedback the actual tension may not be changed by changing the set value PID reference value The mechanical configuration such as the counterweight of the tension swing or float roll shall be changed to change the tension 4 Function modules related to close loop speed mode 1 PID part It is mainly used for setting of group FA It can also provide auxiliary function for the second group of PID parameters in group FH After all the other parts are correctly set the PID parameters shall be adjusted for the final control result 2 Line speed input part This part is very important It has two functions 5 Chapter 2 Tension Control Principles to calculate the matching frequency according to the line speed as described above and to calculate the curling radius through the line speed 3 Curling radius calculation part It is used to calculate the actual curling radius The inverter can acquire the matching frequency after obtaining the line speed and the actual curling radius When using the line speed to calculate the curling radius if the curling radius calc
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