JP4080940B2 - Tension control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tension control device for controlling the tension of a long material when a long material such as paper, film, thread, or wire is subjected to processing such as printing or molding.
[0002]
[Prior art]
In a conventional tension control device, a compact tension control device that can easily compare a current control value with a set control value and has good operability has been disclosed (for example, see Reference 1). The current control value and the set control value are displayed in a bar graph using a display means such as a liquid crystal display, making it easy to compare, and operation is performed by setting control data etc. using a dial knob that can change the numerical value by rotating operation. We are trying to improve sex.
[0003]
[Patent Document 1]
JP-A-8-230165 (page 3, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, the prior art has the following problems. In the prior art, various functions are assigned to a hierarchically structured screen. However, a number of cumbersome operations are required to reach the desired screen, and sufficient operation is necessary if the hierarchical structure is not fully understood. There was also a situation in which it was necessary to proceed while looking at the instruction manual as needed. As a result, not only an operator who performs normal operation, but also a machine manufacturer staff who adjusts the tension control device before the operation operation, and a serviceman who performs repairs and maintenance require knowledge and skill regarding the operation.
[0005]
The present invention has been made to solve the above-described problems. An operator who performs a normal operation operation, a machine manufacturer staff who adjusts a tension control device before the operation operation, and a service which performs repair and maintenance. It is an object of the present invention to provide a tension control device in which each man can easily understand and perform a simple and quick operation.
[0006]
[Means for Solving the Problems]
The tension control device of the present invention allocates various functions for performing tension control to a hierarchically structured screen, and controls the tension of a long material based on the set values of control parameters included in the screen. A control device that stores screen data for setting or displaying data corresponding to control function items for performing tension control in association with function item names and item numbers as function screen data, and for controlling functions. Storage means for storing data for identifying and displaying items as function item identification data, a screen data display unit for displaying the function screen data, and a function identification display unit for displaying the function item identification data, Display means for displaying a function screen combining function screen data and the function item identification data, and control function items displayed on the screen data display unit Numerical value setting means for inputting an item number, function selection input means for performing selection input corresponding to the function item identification data displayed on the function identification display unit, and item numbers from the numerical value setting means The function item name corresponding to the item number is displayed on the display unit based on the function screen data stored in the storage unit at the time of input, and the input result of the item number from the numerical value setting unit or the function selection input unit A control unit that retrieves the corresponding function screen data and function item identification data from the storage unit based on the selection input result, and displays the function screen on the display unit; And an operation state switching means for switching between the normal operation mode / adjustment operation mode, and the control section displays the function displayed on the function identification display section based only on the selection input result from the function selection input means in the normal operation mode. Select and display from function screens limited to item identification data, and in the adjustment operation mode, all function screens are selected based on the selection input result from the function selection input means and the item number input result from the numerical setting means. Select from Is.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of an operation panel of a tension control device according to an embodiment. In FIG. 1, a liquid crystal panel 1 is a part that displays a function screen assigned to each control function item, and displays various setting value names, setting values, display monitor values, transition destination screen contents, and the like. Here, the liquid crystal panel 1 is a display means capable of displaying kanji, hiragana and pictures. The display upper switching key 2 and the display lower switching key 3 are screen switching means for switching the display of the hierarchical function screen displayed on the liquid crystal panel 1 in the vertical direction.
[0008]
The display 4 is a 7-segment display for monitoring the current control tension and control output values, and the display contents can be switched alternately by the control tension / control output display switching key 5. The automatic operation mode switching key 6 is a key for switching the control mode to the automatic operation mode. When the control mode is switched to the automatic operation mode, the lamp above the automatic operation mode switching key 6 is turned on to inform that the control mode has been switched to the automatic operation mode. The manual operation mode switching key 7 is a key for switching the control mode to the manual operation mode. When the control mode is switched to the manual operation mode, the lamp above the manual operation mode switching key 7 is turned on to inform that the control mode has been switched to the manual operation mode.
[0009]
The tension control output on / off key 8 is a key for alternately switching on / off of the tension control output. The state in which the lamp above the tension control output on / off key 8 is lit indicates the state in which the tension control output is on. The numerical value setting means 9 is used for inputting a setting value displayed on the liquid crystal panel 1 and an item number on the adjustment item selection screen in the adjustment operation mode. When the numerical value setting means 9 is rotated to the right, the setting increases and changes when the value setting means 9 is rotated to the left. Further, since the numerical value setting means 9 can be rotated many times, when a large numerical value change is performed, the fingertip can be put in the recess to be rotated quickly.
[0010]
All of the various functions assigned to the hierarchized screen are managed as one menu, and are managed as separate menus depending on the target material and control conditions. By operating the menu addition key 10 or the menu subtraction key 11, another menu can be called at once, and the menu number is added or subtracted each time the key is pressed once.
[0011]
The numerical value setting lock key 12 can prohibit or cancel the change of the setting value by the numerical value setting means 9. The prohibition / cancellation of the setting by the numerical value setting means 9 is switched alternately by pressing the numerical value setting lock key 12. While the setting by the numerical value setting means 9 is prohibited, the lamp above the numerical value setting lock key 12 is turned on. The function selection keys 13 to 16 are function selection input means for changing the function corresponding to the content of the function item identification data displayed at the lower part of the liquid crystal panel 1. When there is no display content at the bottom of the liquid crystal panel 1, it means that the function selection key has no function.
[0012]
FIG. 2 is a diagram showing an internal configuration of the tension control device according to the present embodiment. Various input / output signals are connected to the outside of the tension control device 20. As the input signal, a tension feedback value from the tension detector 30, an analog signal from the analog input unit 31, and an external contact input command from the ON / OFF command unit 32 are connected. In addition, as an output signal, a control output for performing tension control and an output for monitoring are connected. These input / output signals are connected to the control unit 21 via the external input signal processing unit 22 and the external output signal processing unit 23.
[0013]
Further, the display unit 24, the storage unit 25, the numerical value setting unit 26, the function selection input unit 27, and the operation state switching unit 28 are connected to the control unit 21. The display means 24 corresponds to the liquid crystal panel 1 in FIG. 1, and is divided into an image data display section and a function identification display section in this embodiment. FIG. 3 is an explanatory diagram of the display means, and the function screen corresponding to each control function includes a screen data display unit 35 and a function identification display unit 36.
[0014]
The image data display unit 35 is an area for displaying control results, inputting control parameters, setting item numbers for transition to other function item screens, and displaying function item names corresponding to the item numbers. The function identification display unit 36 is an area for displaying data for identifying and displaying control function items. The data displayed on the image data display unit 35 is stored in the storage unit 25 as function screen data, and the data displayed on the function identification display unit 36 is stored as function item identification data in association with the function item name and item number, respectively.
[0015]
FIG. 4 is a diagram showing an example of function item identification data used in the function identification display unit 36. A screen display content of a function or a transition destination is represented by characters and pictograms. 40 is a tension setting screen, 41 is a manual setting screen, 42 is a taper setting screen, 43 is an expansion screen, 44 is a monitor screen, 45 is an automatic zero adjustment screen, 46 is an automatic span adjustment screen, 47 is a menu copy screen, 48 is The execution function 49 and the cancel function 49, respectively. Reference numerals 40 to 47 are symbols corresponding to the function item names, and are used to select a screen to be changed. Symbols 48 and 49 represent functions to be operated, and are used to select an operation to be executed.
[0016]
In the present embodiment, pictograms are adopted because of the displayable space of the liquid crystal panel 1, but the same effect can be obtained even if a direct explanation is used. However, even if the language displayed on the liquid crystal panel 1 is Japanese, Chinese, English, etc., it is easy for any operator not to change the function identification display unit 36 depending on the language, and regardless of the language used. There is also a meaning that pictograms are intentionally adopted so that the contents of the function identification display unit 36 can be understood. These pictograms are also used in the keys on the operation panel in FIG.
[0017]
2 corresponds to the numerical value setting means 9 in FIG. 1, and the function selection input means 27 in FIG. 2 corresponds to the function selection keys 13 to 16 in FIG. Further, the operation state switching means 28 sets switching between the normal operation mode / adjustment operation mode, switching of the taper control method, and the like. In the present embodiment, these settings are performed by the DIP switch of FIG. 15, and details will be described later.
[0018]
The control unit 21 reads the setting state of the operation state switching unit 28 when the power is turned on and establishes the mode, and then, based on inputs from the external input signal processing unit 22, the numerical value setting unit 26, and the function selection input unit 27, The display control of the function screen and the control function on the corresponding function screen are executed using the storage unit and the display unit, and the control output 33 and the monitor output 34 are output via the external output signal processing unit 23.
[0019]
FIG. 5 is a diagram showing an example of the screen display in the normal operation mode. The screen of the manual setting 1 is displayed on the liquid crystal panel 1 in the screen display of the normal operation mode. In the uppermost line, an item name corresponding to the item number of the currently displayed screen is displayed, and a symbol mark corresponding to the item name is displayed at the left end. At the right end of the top row, there is an arrow display indicating whether the upper / lower screen switching is enabled or disabled by the display upper switching key 2 and the display lower switching key 3 along with the display of the currently selected menu number.
[0020]
In FIG. 5, menu number 1 is selected. For example, when seven menus can be registered in total, the menu number changes as 1 → 2 → 3 → by operating the menu addition key 10 and the menu subtraction key 11 operates. As a result, the menu number changes from 1 → 7 → 6 →. Further, in FIG. 5, the display of the arrow related to the screen switching is directed upward and downward, and in this state, both the display upper switching key 2 and the display lower switching key 3 are effective. When one of the up and down arrows is displayed, only one operation corresponding to the displayed arrow direction among the display upper switching key 2 and the display lower switching key 3 can be accepted.
[0021]
On the second line, a tension monitor bar and a tension target bar are displayed. When automatic control is performed, the tension monitor value follows the tension target value, and by visually observing the tension monitor bar and the tension target bar, it can be determined whether the control is being performed satisfactorily. The current setting value is displayed in the third line. When an under cursor is displayed for this set value, a change of the set value by the numerical value setting means 9 is accepted and the setting can be changed. When the change of the setting value by the numerical value setting means 9 is prohibited by the numerical value setting lock key 12, the under cursor is not displayed and the setting value cannot be changed. These data from the first line to the third line correspond to the function screen data and are stored in the storage means 25 in association with the function item name and the item number. The data display area from the first line to the third line corresponds to the image data display unit 35.
[0022]
The function identification display section 36 in the bottom row displays the function assigned to the function selection keys 13 to 16 or the contents of the transition destination screen on this screen. In FIG. 5, the function selection key 13 (F1) is a tension setting screen, the function selection key 14 (F2) is a taper setting screen, the function selection key 15 (F3) is an extended display screen, and the function selection key 16 (F4) is a tension monitor screen. Are assigned as function item identification data, and can be directly shifted to the corresponding screen by operating the function selection keys 13-16. In the present embodiment, this display is realized by the liquid crystal panel 1, but it goes without saying that the display means is not selected as long as the same effect can be obtained with other display means.
[0023]
FIG. 6 is a diagram showing an example of a screen display in the adjustment operation mode. In the screen display of the adjustment operation mode, the adjustment item selection screen corresponding to the initial screen of the adjustment operation mode is displayed on the liquid crystal panel 1. In the uppermost line, an item name corresponding to the item number of the currently displayed screen is displayed, which indicates that the adjustment item selection screen is displayed here. Further, at the right end of the top row, as in FIG. 5, there is an arrow display indicating whether the upper / lower screen switching is valid or invalid by the display upper switching key 2 and the display lower switching key 3.
[0024]
In FIG. 6, the arrow points downward, and in this state, the display downward switching key 3 is effective. However, when an arrow pointing in both directions is displayed, the display upward switching key 2 is displayed. When both the upper and lower screen switching of the lower switching key 3 is effective and the arrow is directed only downward, only the operation of the display lower switching key 3 can be accepted.
[0025]
The item number of the currently selected adjustment item is displayed on the second line, and the item name corresponding to the item number of the currently selected adjustment item is displayed on the third line. In FIG. 6, the tension full scale of item number 20 is selected, and when the display downward switching key 3 is operated in this state, the display on the liquid crystal panel 1 changes to the tension full scale screen. The data from the first line to the third line correspond to the function screen data of the adjustment item selection screen, and are stored in the storage unit 25 in association with the function item name and the item number.
[0026]
When the item number of the adjustment item is changed by the operation of the numerical value setting means 9, the function item name corresponding to the item number is changed in conjunction with it, and the function selected from the item name can be confirmed. That is, the control unit 21 can extract the function item name corresponding to the item number from the storage unit 25 based on the item number set by the numerical value setting unit 9 and display the item name on the liquid crystal panel 1 in conjunction with the item number. The operator can confirm not only the item number but also the item name as characters, and can easily select a desired function.
[0027]
The function identification display section 36 in the bottom row displays the function assigned to the function selection keys 13 to 16 or the contents of the transition destination screen on this screen. In the adjustment item selection screen of FIG. 6, the function selection key 13 (F1) is an input / output status monitor screen for external connection, the function selection key 14 (F2) is an automatic zero adjustment screen, and the function selection key 15 (F3) is an automatic span adjustment. The screen and function selection key 16 (F4) has symbols corresponding to the menu copy screen assigned as function item identification data, respectively, and can directly transition to the corresponding screen by operating the function selection keys 13-16.
[0028]
FIG. 7 is a diagram showing a list of screens that can be changed with the function selection keys 13 to 16 from the adjustment item selection screen described with reference to FIG. 6, and the screen transitions caused by the operations of the display upper switching key 2 and the display lower switching key 3. It also shows. The function selection key 13 (F1) is assigned for monitoring the external connection input / output state, and the function selection key 13 (F1) is pressed to switch to the analog input monitor screen 70a. On this screen, the state (voltage value) of the analog input connected to the tension control device can be monitored.
[0029]
Further, when the display downward switching key 3 is operated on the analog input monitor screen 70a, the display is switched to the contact input monitor screen 70b. On the contact input monitor screen 70b, the ON / OFF state of the external command contact input connected to the tension control device can be monitored. Further, when the display lower switching key 3 is operated on the contact input monitor screen 70b, the display is switched to the analog output monitor screen 70c. On the analog output monitor screen 70c, the state (voltage value) of the control output and the monitor output can be monitored. When the display upper switching key 2 is operated, the screen is switched in the reverse direction.
[0030]
FIG. 8 is a diagram showing the external input / output wiring according to the tension control device in the present embodiment. These screen groups can be used to monitor the input / output status for external connection when investigating the cause when a problem occurs in the mechanical device to which the tension controller is attached. .
[0031]
Next, a method for calibrating the detection value by the tension detector will be described. In a tension control apparatus that performs feedback control so that the tension value fed back from the tension detector matches the target control tension value, the actual material tension is matched with the monitor tension value fed back from the tension detector. Calibration work is required. FIG. 9 is a diagram showing the state of the tension detector attached to the mechanical device.
[0032]
Two tension detectors 90 are used as shown in FIG. 9 when controlling the tension of a wide material. On the tension detector 90, a detection roll 92 for detecting tension is attached. Further, in order to detect the tension of the material, it is necessary to provide an angle to the material applied to the detection roll 92 by the detection roll 92 and the guide roll 91 in order to convert the tension applied to the tension detector into a force amount.
[0033]
Generally, a commercially available scale may be calibrated by a manufacturer at the time of shipment. However, in a mechanical device using a tension control device, the control tension range required by the mechanical device differs depending on the mechanical device, and the tension installed in the mechanical device. The tension of the material and tension of the detector 90 are different because the mounting state of the detector 90 is different depending on the machine, the positional relationship between the detection roll 92 and the guide roll 91 is different depending on the machine, the weight of the detection roll 92 is different depending on the machine, etc. Calibration of the tension monitor value of the control device is required. The user needs to perform zero adjustment and span adjustment operations in order to match the actual material tension and the tension value fed back from the tension detector.
[0034]
At least three operations are required to calibrate the actual material tension and the tension monitor value of the tension controller. They are operations related to tension full scale setting, zero adjustment, and span adjustment. The setting of the tension full scale determines the maximum reference value of the tension handled by the tension control device, and corresponds to the maximum scale in terms of a scale. Zero adjustment is to set the signal from the tension detector when the tension is zero to the tension control device. With the tension detector and tension control device connected, the tension detector output voltage is applied to the tension control device. By memorizing and replacing the output voltage with zero tension, the monitor tension of the tension control device can be zero.
[0035]
In FIG. 9, zero adjustment can be performed by storing the output voltage of the tension detector 90 with only the tension detector 90 and the detection roll 92 in the state where the tension detector 90 and the tension controller are connected to each other. . Further, the span adjustment is performed after zero adjustment, and then a string 94 is passed through the guide roll 91 and the detection roll 92 through the same path as the material as shown in FIG. 9, and a known weight 93 is hung on the string 94. This is done by matching the weight of the tension and the tension monitor displayed on the tension control device. In the tension control device according to the embodiment, the tension control device stores the voltage from each tension detector during zero adjustment and span adjustment, and the stored voltage and the input voltage of the tension detector are set. It has automatic zero adjustment and automatic span adjustment functions that calculate the tension monitor value from the tension full scale value.
[0036]
In the tension control device according to the embodiment, the actual tension monitor value T (MON) is calculated by converting the actual tension detector output voltage to TV (OUT), the zero-adjustment tension detector output voltage to TV (ZERO), and tension full scale conversion. If the tension detector output voltage during span adjustment is TV (SPAN) and the tension full scale set value is T (FULL),
T (MON) = (TV (OUT) −TV (ZERO)) × T (FULL) / TV (SPAN)
Accordingly, in a tension control device that performs tension control using a tension detector, the tension detector output voltage TV (ZERO) at zero adjustment is stored, and the tension detector output voltage TV (SPAN) at span adjustment in terms of tension full scale. And the setting of the tension full scale set value T (FULL) are essential setting items during machine adjustment.
[0037]
In the adjustment item selection screen of FIG. 7, the function selection key 14 (F2) is assigned for automatic zero adjustment, and the function selection key 14 (F2) is pressed to switch to the automatic zero adjustment execution operation screen 71a. In this screen, the function selection key 13 (F1) is assigned a cancel function, and the function selection key 16 (F4) is assigned a symbol corresponding to an execution function as function item identification data. Then, automatic zero adjustment is performed by pressing the function selection key 16 (F4) in a state where the detection roll 92 and the string 94 in FIG. 9 are not applied, and the tension detector output connected to the tension control device controls the tension. It can be stored in the device and the tension monitor value can be made zero. By giving the function operated in this way as function item identification data, the control unit 21 can execute a desired function based on the input result of the function selection key.
[0038]
Further, when the function selection key 13 (F1) is pressed on the automatic zero adjustment execution operation screen 71a, the state of the automatic zero adjustment execution operation screen 71a is canceled and a transition is made to the adjustment item selection screen. When the automatic zero adjustment function is activated, the screen is switched to the automatic zero adjustment execution screen 71b to display that automatic zero adjustment is being executed. When the automatic zero adjustment is normally completed, the screen is switched to an automatic zero adjustment normal completion screen 71c. When the automatic zero adjustment is not normally completed, the screen is switched to the automatic zero adjustment abnormality completion screen 71d. When the automatic zero adjustment normal completion screen 71c or the automatic zero adjustment abnormality completion screen 71d, which is a state in which automatic zero adjustment is completed regardless of whether it is normal or abnormal, is displayed, the display upper switching key 2 or the display lower switching key 3 The screen transitions to the adjustment item selection screen by the operation of.
[0039]
In the adjustment item selection screen of FIG. 7, the function selection key 15 (F3) is assigned for automatic span adjustment, and is switched to the automatic span adjustment execution operation screen 72a by pressing the function selection key 15 (F3). In this screen, the cancel function is assigned to the function selection key 13 (F1), and the execution function is assigned to the function selection key 16 (F4). When the span adjustment is executed, the tension detector connected to the tension control device passes a string 94 through the center of the guide roll 91 and the detection roll 92 and a known weight 93 is applied as shown in FIG. There is a need.
[0040]
Furthermore, it is necessary to set a span target value on the automatic span adjustment execution operation screen 72a, and the weight of the known weight 93 shown in FIG. After that, the automatic span adjustment is executed by pressing the function selection key 16 (F4), the output of the tension detector connected to the tension control device when the weight is applied is stored in the tension control device, and the tension monitor value is the tension. It can be matched with the target value.
[0041]
Further, when the function selection key 13 (F1) is pressed on the automatic span adjustment execution operation screen 72a, the state of the automatic span adjustment execution operation screen 72a is canceled and a transition is made to the adjustment item selection screen. When the automatic span adjustment function is activated, the screen is switched to the automatic span adjustment execution screen 72b to display that automatic span adjustment is being executed. When the automatic span adjustment is normally completed, the screen is switched to an automatic span adjustment normal completion screen 72c. When the automatic span adjustment is not normally completed, the screen is switched to the automatic span adjustment abnormality completion screen 72d, and the reason why the automatic span adjustment is not normally completed is displayed on the second line of the liquid crystal panel 1 and the process is terminated.
[0042]
When the automatic span adjustment is normally completed and the automatic span adjustment normal completion screen 72c is displayed, the display is switched to the tension monitor screen 72e by operating the display lower switching key 3. When the tension monitor screen 72e is displayed, the adjustment item selection screen is displayed by operating the display upper switching key 2 or the display lower switching key 3. Even when the automatic span adjustment is completed abnormally and the automatic span adjustment abnormality completion screen 72d is displayed, the screen changes to the adjustment item selection screen by operating the display upper switching key 2 or the display lower switching key 3.
[0043]
In the adjustment item selection screen of FIG. 7, the function selection key 16 (F4) is assigned for data copy between menus, and the function selection key 16 (F4) is pressed to switch to the menu copy screen 73a. In this screen, an execution function is assigned to the function selection key 16 (F4). In the menu copy screen 73a, the currently selected menu number is displayed as the copy source on the second line of the liquid crystal panel 1. Here, in order to perform the menu copy, it is necessary to set the copy destination menu number in the copy destination item displayed on the third line, and the setting of the copy destination menu number is performed by operating the numerical value setting means 9. Do.
[0044]
After that, the menu copy is executed by pressing the function selection key 16 (F4), the setting data in the copy source menu is copied into the copy destination menu at once, and the screen is switched to the menu copy completion screen 73b. In the state where the menu copy completion screen 73b is displayed, the adjustment item selection screen is displayed by operating the display upper switching key 2 or the display lower switching key 3.
[0045]
Next, with reference to FIG. 10, the state of screen transition by changing the setting of the item number of the adjustment item currently selected on the adjustment item selection screen will be described. FIG. 10 is a diagram showing a list of screens that can be changed by inputting an item number from the adjustment item selection screen, and also shows the relationship between screen changes caused by operations of the display upper switching key 2 and the display lower switching key 3. The item number of the adjustment item currently selected is displayed on the second line of the adjustment item selection screen, and the item name corresponding to the item number of the adjustment item currently selected is displayed on the third line. FIG. 10 shows a case where the tension full scale screen of item number 20 is selected.
[0046]
When the display lower switching key 3 is operated in this state, the screen is switched to the tension full scale screen corresponding to the item number 20. In the tension full scale screen, the display item selection screen can be returned to by operating the display upper switching key 2 or the display lower switching key 3. In the adjustment item selection screen, the item numbers on the second line and the item names on the third line correspond one-to-one. By setting the item number with the numerical value setting means 9, the display content is switched in conjunction with the item name, and the target screen can be easily reached by operating the display downward switching key 3 while checking the item name. it can.
[0047]
For the calibration of the actual material tension and the tension monitor value of the tension controller, operations relating to the setting of the tension full scale, zero adjustment, and span adjustment are required at a minimum. With regard to the tension full scale setting in which only data setting is performed, the screen can be changed by setting item numbers in the screen data display section 35 of the adjustment item setting screen. The initial display of the item number on the second line and the corresponding item name on the third line when the adjustment item selection screen is displayed is set in advance so that the 20th tension full scale is displayed. Has been. This is because the setting item must be adjusted first when adjusting the tension control device.
[0048]
Further, operations relating to zero adjustment and span adjustment are configured such that the screen can be easily changed by operating the function selection key by assigning symbols corresponding to the function identification display unit 36 as function item identification data. As a result, the tension monitor value can be easily calibrated.
[0049]
Next, details of the operation method will be described by taking item numbers 10, 50, and 52 as examples from the screen shown in FIG. A setting item 10 in FIG. 10 is a stop gain setting screen. In this screen, it is necessary to perform two settings of a stop gain and a stop timer. When there are a plurality of setting values to be changed as described above, the selection is made by operating the display upper switching key 2 and the display lower switching key 3. When the screen is switched to the stop gain setting screen, the cursor is displayed under the stop gain setting value on the second line from the top, and the stop gain can be changed by the operation of the numerical value setting means 9.
[0050]
At this time, if the operation of the display lower switching key 3 is executed only once, the cursor is lowered by one and the cursor is displayed under the numerical value of the stop timer setting, and the stop timer can be set and changed by operating the numerical value setting means 9. Become. If the display upper switching key 2 is operated while the cursor is displayed below the stop gain setting value, the screen returns to the adjustment item selection screen. The adjustment item selection screen can also be returned by operating the display downward switching key 3 while the cursor is displayed below the numerical value set for the stop timer.
[0051]
A setting item 50 in FIG. 10 is an MI setting screen for setting validity / invalidity of the external contact input. The setting item 50 has a three-screen configuration from MI1 to MI3. In such a case, the adjustment item selection screen is always switched to the uppermost MI1 setting screen. Switching between the MI1 setting screen and the MI3 setting screen is performed by operating the display upper switching key 2 and the display lower switching key 3, and switching from the MI3 setting screen to the adjustment item selection screen is performed by operating the display lower switching key 3.
[0052]
A setting item 52 in FIG. 10 shows an extended screen 1 and an extended screen 2 to which frequently used screens can be assigned depending on the application. Screens from the stop gain setting screen of setting item 10 to the AI setting screen of setting item 51 can be set. The extension screen 1 and the extension screen 2 are assigned to the function selection key in the screen display during normal operation, and can directly transition to the extension screen by pressing the function selection key. Therefore, by setting the desired item numbers in the extended screen 1 and the extended screen 2, it is possible to easily transition to the desired screen even during normal operation. By setting 0 as the item number setting, the assignment of the extended screen 1 or the extended screen 2 can be invalidated.
[0053]
11 and 12 are diagrams showing a list of screens that can be changed by the function selection keys 13 to 16 in the screen display of the normal operation mode, and the relation of the screen transition by the operation of the display upper switching key 2 and the display lower switching key 3. It also shows. The assignment of the function selection keys 13 to 16 in the screen display in the normal operation mode varies depending on whether the extended screen is set or not and whether the taper control is enabled or disabled. The setting of the taper control valid / invalid will be described later with reference to FIG.
[0054]
11A is a setting state with taper control enabled and with an extended screen, FIG. 11B is a setting state with taper control disabled and with an extended screen, and FIG. 12A is a setting state with taper control enabled and without an extended screen. FIG. 12B shows a list of screen transitions in a setting state in which the taper control is disabled and there is no extended screen.
[0055]
The contents of the screen transition will be described with reference to FIG. When the tension setting screen is displayed in the normal operation mode, the function selection key 13 (F1) is a manual setting screen, the function selection key 14 (F2) is a taper setting screen, and the function selection key 15 (F3) is an extended display screen. In the function selection key 16 (F4), symbols corresponding to the tension monitor screen are assigned as function item identification data, respectively, and the screen can be changed to a corresponding screen by operating the function selection keys 13-16.
[0056]
Transition to the extended screen depends on the settings of the extended screen 1 and the extended screen 2 in the item number 52 of FIG. When transitioning to the extended screen using the function selection key, if an item number is set on both the extended screen 1 and the extended screen 2, or if an item number is set only on the extended screen 1, the extended screen 1 is displayed. First, the screen corresponding to the set item number is switched, and when the item number is set only in the extended screen 2, the screen is directly switched to the screen corresponding to the item number set in the extended screen 2.
[0057]
FIG. 13 is an explanatory diagram of setting switching by the DIP switch of the tension control device according to the present embodiment. The operation state switching means described in FIG. 2 corresponds to this. These switching means are arranged in a DIP (Dual In Package) switch arranged on the main body side where the operation panel is opened. The validity / invalidity of the taper control is assigned to SW2 and SW3 under the name of switching of the taper control method. The taper control of the tension control device according to this embodiment can be selected from three types: taper control not used / internal taper / external taper. Further, switching of the operation mode is assigned to SW8, and switching between the normal operation mode and the adjustment operation mode can be set. Since the operation of the tension control device varies greatly depending on the setting state of the DIP switch, in this embodiment, all the setting states of the DIP switch are taken in only when the power is turned on.
[0058]
FIG. 14 is a flowchart of the screen switching process in the normal operation mode. The screen switching process from the state in which the tension setting screen is displayed in the normal operation mode is shown. This flowchart explains screen switching by function selection keys 13 to 16 corresponding to the processing of the function identification display unit 36 displayed at the bottom of the liquid crystal panel 1. All the display contents for the function identification display unit 36 will be described as being prepared in advance. First, based on whether the taper control is enabled / disabled, it is determined whether or not to cancel the display of the taper setting screen of the function identification display unit 36 (S1401). If it is determined that the taper setting is invalid, the taper setting screen is deleted (S1402).
[0059]
Next, it is determined whether or not to cancel the display of the extended screen of the function identification display unit 36 based on the presence / absence of the extended screen (S1403). If it is determined that there is no setting for the extended screen, processing for deleting the display of the extended screen is performed (S1404). In this way, the control unit 21 can delete the invalid function symbols from the function item identification data by performing the processing of S1401 to S1404, and a screen display suitable for the setting state can be obtained, thereby improving the operability of the operator. Improved.
[0060]
Next, it is determined which function selection key is operated (S1405). When the function selection key 13 (F1) is pressed, S1406 is performed. When the function selection key 14 (F2) is pressed, S1409 is selected. When the selection key 15 (F3) is pressed, the processing of S1411 is performed, and when the function selection key 16 (F4) is pressed, the processing of S1415 is performed.
[0061]
When the function selection key 13 (F1) is pressed, it is determined whether or not the external manual 2 control switching input is ON (S1406). If it is ON, the screen is switched to the manual setting 2 screen (S1407). In this case, the screen is switched to the manual setting 1 screen (S1408). When the function selection key 14 (F2) is pressed, it is determined whether the taper control is valid / invalid (S1409), and the process for switching to the taper setting screen is performed only when it is valid (S1410).
[0062]
When the function selection key 15 (F3) is pressed, it is determined whether or not the extended screen 1 is set (S1411), and when it is set, the process for switching to the extended screen 1 is performed (S1412). If it is not set, it is further determined whether or not the extended screen 2 is set (S1413), and if it is set, processing for switching to the extended screen 2 is performed (S1414).
[0063]
Furthermore, the tension control device according to the first embodiment has a function of allowing screen transitions directly by operating the automatic operation mode switching key 6 or the manual operation mode switching key 7, and continuously performs the processing. It is determined whether or not the automatic operation mode switching key 6 has been operated (S1416). When the automatic operation mode switching key 6 has been operated, the process for switching to the tension setting screen is performed (S1419), and then the key processing state is cleared. (S1422).
[0064]
When the automatic operation mode switching key 6 is not operated, it is determined whether or not the manual operation mode switching key 7 is operated (S1417). When the manual operation mode switching key 7 is operated, the external manual 2 control switching is further performed. It is determined whether the input is ON (S1418). When the external manual 2 control switching input is ON, the screen is switched to the manual setting 2 screen (S1420), and then the key processing state is cleared (S1422). If the external manual 2 control switching input is OFF, the screen is switched to the manual setting 1 screen (S1421), and then the key processing state is cleared (S1422). If the manual operation mode switching key 7 is not operated in S1417, the last key processing state is cleared without processing (S1422).
[0065]
Next, the screen display when the power is turned on will be described with reference to FIG. FIG. 15 is an explanatory diagram of a screen displayed according to the setting state of the DIP switch when the power is turned on. When the power is turned on, the tension control device according to the present embodiment displays the model name / software version display item for several seconds (S1501), the state of the DIP switches SW7 and SW8 at the time of power-on, and the installation of the memory cassette for data storage copy Depending on the state, the screen to be initially displayed is switched to start the operation.
[0066]
Here, the operation when the DIP switch SW7 at the time of power-on is OFF and the memory cassette is not mounted will be described below. At this time, the operation starts depending on the setting state of the DIP switch SW8. The tension control device always maintains the last displayed screen state. When the DIP switch SW8 is ON (S1502), that is, in the normal operation state, the screen held before the power is turned off is displayed (S1503), and the operation can be started from the state before the power is turned off. . In the normal operation state, since the operator is most likely to use the screen when the power is turned off, the operability can be improved by restoring the state before the power is turned off.
[0067]
When the DIP switch SW8 is OFF (S1504), that is, in the adjustment operation mode, the screen for starting the operation is switched depending on whether a password is set on the password setting screen corresponding to the item number 54 in FIG. . In the tension control device according to the present embodiment, the password setting of item number 54 in FIG. 10 is “0” zero at the time of shipment (S1505). At this time, it is determined that the password settings match (S1507). The operation starts from the adjustment item selection screen corresponding to the initial screen of the adjustment operation mode. If it is determined that the password setting is other than “0” zero, the operation is started from the password input screen for requesting the password input (S1506).
[0068]
In the password input screen, the password set in advance in the password setting screen of item number 54 in FIG. 10 is compared with the input password, and if it is determined that they match (S1507), adjustment is performed by operating the display downward switching key 3 Switching to the adjustment item selection screen corresponding to the initial screen of the operation mode is permitted (S1508). However, if it is determined that they do not match (S1509), “password mismatch” is displayed on the second line from the top of the liquid crystal panel 1 at the moment when the operation of the display downward switching key 3 is performed (S1510). Switching to the selection screen is not allowed. With such a password function, it is possible to prevent anyone other than a specific user from entering the adjustment item selection screen and prevent an inadvertent operation.
[0069]
However, it is conceivable that a service person who performs repair or maintenance does not know the password, and a staff such as a machine manufacturer may forget to set the password. In order to avoid the situation in which the adjustment operation mode cannot be entered because the password is unknown, a fixed password is provided separately from the password that is set by the user, and the adjustment item selection screen is displayed by entering this fixed password. It is also possible to take a response that allows transition to
[0070]
Furthermore, in the tension control device according to the present embodiment, the control operation during automatic control can be switched to a fixed output by an external contact input command. This function can be assigned to the inputs of the external contact commands MI1 to MI3 in FIG. This allocation is performed on the MI1 setting screen to the MI3 setting screen corresponding to the item number 50 in FIG. You can select from six functions: output memory input, output gain 1 input, output gain 2 input, output ON / OFF input, manual 1 output switching input, and manual 2 output switching input. it can.
[0071]
Next, a manual 1 output switching input is assigned to the external contact signal MI1, a manual 2 output switching input is assigned to the external contact signal MI2, and the control state change also takes into account the operation of the automatic operation mode switching key 6 and the manual operation mode switching key 7. Will be described. FIG. 16 is a flowchart for explaining the control state switching process, and FIG. 17 is a time chart for explaining the control state switching process based on the change of the external contact signal.
[0072]
In FIG. 16, first, in S1601, it is confirmed whether the current control mode is the automatic mode. The process is switched to S1602 in the automatic mode, and to S1604 in the manual mode. In S1602, it is confirmed whether or not the manual operation mode switching key 7 is pressed, and only when it is pressed, the mode is switched to the manual operation mode in S1603. In S1604, it is confirmed whether or not the automatic operation mode switching key 6 has been pressed, and only when it is pressed, the operation mode is switched to the automatic operation mode in S1605. Thereafter, the state of the manual 2-output switching input is determined in S1606, and if it is ON, the manual 2-output is output in S1607. If the manual 2-output switching input state is OFF in S1606, the manual 1-output switching input state is determined in S1608, and if ON, manual 1 output is output in S1609.
[0073]
Next, the change in the control output when the manual 1 output switching input and the manual 2 output switching input, which are two external contact signals, change with time will be described using FIG. At time T0, the manual 1 output switching input and the manual 2 output switching input are both OFF and automatic control is being performed. Next, when the manual 1 output switching input is turned on at time T1, the processing of S1609 in FIG. 16 is performed, and the control output is switched to the fixed output that is the manual 1 setting value by stopping the automatic control.
[0074]
Next, at time T2, when the manual 1 output switching input is turned ON and the manual 2 output switching input is further turned ON, the processing of S1607 in FIG. 16 is performed, and the control output is switched to the fixed output that is the set value of manual 2. Thereafter, when the manual 2-output switching input is turned OFF at time T3, the processing of S1609 in FIG. 16 starts again, and the control output is switched to the fixed output that is the manual 1 setting value. Further, at time T4, when the manual 2-output switching input is turned OFF, the automatic control state is entered, and automatic control is resumed from the fixed output that is the manual 1 setting value.
[0075]
For example, it is assumed that the manual 2 setting value in the manual control mode is fixedly output when the tension setting screen is displayed during normal operation (corresponding to the control output between T2 and T3 in FIG. 17). At this time, when the screen transition to the manual setting screen is activated by the combination of the function identification display unit 36 and the function selection key, the process of S1407 in FIG. 14 works to switch to the manual 2 setting screen. Further, even when the manual operation mode switching key 7 is operated, the process of S1420 in FIG. 14 works to switch to the manual 2 setting screen, and the setting value of manual 2 can be easily changed. Thereby, since the screen transition can be performed in conjunction with the control mode set by the external contact command, the control output can be easily adjusted.
[0076]
According to the present embodiment, the operator can quickly change to the target screen by operating based on a combination of a simple and clear function identification display section and a function selection key corresponding to the screen display in the normal operation mode. can do. In addition, the serviceman who performs repairs and maintenance with the machine manufacturer staff should check the corresponding item name while changing the item number of the adjustment item with the numerical setting means on the adjustment item selection screen display in the adjustment operation mode. The display lower switching key and the display upper switching key can be combined to quickly change to a desired screen.
[0077]
In addition, on the adjustment item selection screen display in the adjustment operation mode, I / O status monitor for external connection required for tension full scale setting, zero adjustment and span adjustment, which are necessary for initial setting operation, and external connection confirmation Screen switching to the item can be realized by a combination of a simple and clear function identification display section and a function selection key corresponding to the function identification display section, and an initial setting operation can be easily performed.
[0078]
Furthermore, even for screens that can normally be operated and displayed only in the adjustment operation mode, by assigning them as extended screens, the screen can be easily changed from the normal operation by the function selection key, and the operator is based on a highly flexible screen display. An operation / display function can be obtained.
[0079]
【The invention's effect】
As described above, according to the present invention, the screen of the switching destination can be easily understood by the combination of the function identification display unit and the function selection key corresponding to the screen display in the normal operation mode, and the target screen can be quickly obtained. Transition is possible. In addition, while displaying the adjustment item selection screen in the adjustment operation mode, you can check the corresponding item name while setting the item number of the adjustment item using the numerical value setting means. The operability that allows quick transition to the screen can be provided.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an operation panel of a tension control device according to an embodiment.
FIG. 2 is a diagram showing an internal configuration of a tension control device according to the present embodiment.
FIG. 3 is an explanatory diagram of display means.
FIG. 4 is a diagram showing an example of function item identification data used in a function identification display unit.
FIG. 5 is a diagram showing an example of a screen display in a normal operation mode.
FIG. 6 is a diagram showing an example of a screen display in an adjustment operation mode.
FIG. 7 is a diagram showing a list of screens that can be transitioned from an adjustment item selection screen with a function selection key.
FIG. 8 is a diagram showing an external input / output wiring according to the tension control device in the present embodiment.
FIG. 9 is a diagram showing a state of a tension detector attached to a mechanical device.
FIG. 10 is a diagram showing a list of screens that can be changed by inputting an item number from the adjustment item selection screen.
FIG. 11 is a diagram showing a list of screens that can be changed with a function selection key in the screen display of the normal operation mode.
FIG. 12 is a diagram showing a list of screens that can be changed with a function selection key in the screen display of the normal operation mode.
FIG. 13 is an explanatory diagram of setting switching by a DIP switch of the tension control device according to the present embodiment.
FIG. 14 is a flowchart of screen switching processing in a normal operation mode.
FIG. 15 is an explanatory diagram of a screen displayed according to the setting state of the DIP switch when the power is turned on.
FIG. 16 is a flowchart for explaining control state switching processing;
FIG. 17 is a time chart for explaining control state switching processing based on a change in an external contact signal;
[Explanation of symbols]
1 LCD panel, 2 display up / down switch key, 3 display down switch key, 4 display, 5 control tension / control output display switch key, 6 automatic operation mode switch key, 7 manual operation mode switch key, 8 tension control output input / OFF key, 9 numeric setting means, 10 menu addition key, 11 menu subtraction key, 12 numeric setting lock key, 13-16 function selection key, 20 tension control device, 21 control unit, 22 external input signal processing unit, 23 external output Signal processing unit, 24 display unit, 25 storage unit, 26 numerical value setting unit, 27 function selection input unit, 28 operation state switching unit, 30 tension detector, 31 analog input unit, 32 ON / OFF command unit, 33 control output, 34 Monitor output, 35 Image data display section, 36 Function identification display section, 40 Tension setting screen, 41 Manual setting screen, 42 Taper setting Screen, 43 Extended screen, 44 Monitor screen, 45 Automatic zero adjustment screen, 46 Automatic span adjustment screen, 47 Menu copy screen, 48 Execution function, 49 Cancel function, 90 Tension detector, 91 Guide roll, 92 Detection roll, 93 Known Weight, 94 thongs.

Claims (12)

In a tension control device that assigns various functions for performing tension control to a hierarchically structured screen and controls the tension of a long material based on the set values of control parameters included in the screen.
To store screen data for setting or displaying data corresponding to control function items for tension control as function screen data in association with function item names and item numbers, and to identify and display control function items Storage means for storing the data as function item identification data;
Display means for displaying a function screen combining the function screen data and the function item identification data, comprising: a screen data display unit for displaying the function screen data; and a function identification display unit for displaying the function item identification data. When,
Numerical value setting means for inputting the item number of the control function item displayed on the screen data display unit;
Function selection input means for performing selection input corresponding to the function item identification data displayed on the function identification display unit;
The function item name corresponding to the item number is displayed on the display unit based on the function screen data stored in the storage unit when the item number is input from the numerical setting unit, and the item number is input from the numerical setting unit. A control unit that extracts the corresponding function screen data and function item identification data from the storage unit based on the result or the selection input result from the function selection input unit, and displays the function screen on the display unit ;
Operation state switching means for switching between normal operation mode / adjustment operation mode;
With
In the normal operation mode, the control unit is configured to select and display a function screen limited to the function item identification data displayed on the function identification display unit based only on a selection input result from the function selection input unit. In the adjustment operation mode, the tension control device is configured to select and display from all function screens based on the input result of the item number from the numerical value setting means together with the selection input result from the function selection input means. The tension control device according to claim 1 ,
The storage means stores function item identification data in association with an item number;
The control unit displays a function screen combining the function screen data based on the item number and the function item identification data,
The function selection input means is configured to change a selection input allocation for each function screen according to the function item identification data displayed on the function identification display unit corresponding to an item number. . The tension control device according to claim 1,
It further comprises an operation state switching means for switching the validity / invalidity of the taper control function,
The control unit determines display / non-display of data for identifying and displaying the taper control function in the function item identification data according to the setting of the taper control function, and displays the function identification display unit A tension control device characterized by that. The tension control device according to claim 1,
The storage means stores extended screen data for setting a desired item number as function screen data,
The function identification display unit displays data for identifying and displaying the extended screen as the function item identification data,
The control unit selects a function screen corresponding to the item number set on the expansion screen by selecting data for identifying and displaying the expansion screen displayed on the function identification display unit by the function selection input unit. A tension controller characterized by direct transition. The tension control device according to claim 4, wherein
The control unit determines that there is no extended screen setting when the item number set on the extended screen is a specific number, and identifies and displays the extended screen in the function item identification data A tension control device that judges that data is not displayed and displays a function identification display unit. The tension control device according to claim 4, wherein
It further comprises an operation state switching means for switching between the normal operation mode / adjustment operation mode,
By setting the item number of the function screen used in the adjustment operation mode on the extended screen,
The control unit changes to a function screen used in the adjustment operation mode based on a selection input result corresponding to the extended screen from the function selection input means even during the function screen display in the normal operation mode. Control device. The tension control device according to claim 1,
It further comprises an operation state switching means for switching between the normal operation mode / adjustment operation mode,
The storage means stores the latest screen being displayed,
When the power is turned off in the normal operation mode and then turned on again, the control unit takes out the latest screen from the storage means and displays it on the display means, and the power is turned off and turned on again in the adjustment operation mode. A tension control device characterized by causing the display means to display an adjustment item selection screen corresponding to a predetermined initial screen regardless of the state of the latest screen. The tension control device according to claim 1,
It further comprises an operation state switching means for switching between the normal operation mode / adjustment operation mode,
The storage means stores the function screen data and the function item identification data that can be directly switched from the adjustment item selection screen corresponding to the initial screen of the adjustment operation mode to each screen of tension full scale, zero adjustment, and span adjustment. A tension control device characterized by storing. The tension control device according to claim 1,
The storage means stores monitor screen data for monitoring external input / output signals as function screen data,
The function item identification data includes data for identifying and displaying a monitor screen,
The controller controls the monitor screen displayed on the function identification display unit by selecting the data for identifying and displaying the monitor screen by the function selection input means, and directly changes to the monitor screen. . The tension control device according to claim 1,
The storage means stores password setting screen data for setting a password as function screen data, and password input screen data for performing password input check,
The control unit stores the password set in advance on the password setting screen in the storage unit, and displays the password input screen on the display unit before the transition to the adjustment item selection screen corresponding to the initial screen of the adjustment operation mode. The tension control device, wherein when the comparison between the password that is displayed and entered and the password stored in the storage means matches, the adjustment item selection screen is displayed. The tension control device according to claim 10, wherein
The control unit, when there is no password set in advance on the password setting screen, does not display the password input screen on the display means, but directly transitions to the adjustment item selection screen, apparatus. The tension control device according to claim 1,
When there is a function screen corresponding to the control mode that can be switched by an external ON / OFF command,
When the control mode function screen is selected by the function selection input means, the control unit transitions to a function screen corresponding to a control mode set by an external ON / OFF command.

Images