CN208027159U - Programmable device for medium frequency inverter electric resistance welding system - Google Patents
Programmable device for medium frequency inverter electric resistance welding system Download PDFInfo
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- CN208027159U CN208027159U CN201820470575.3U CN201820470575U CN208027159U CN 208027159 U CN208027159 U CN 208027159U CN 201820470575 U CN201820470575 U CN 201820470575U CN 208027159 U CN208027159 U CN 208027159U
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Abstract
The utility model provides a kind of programmable device for medium frequency inverter electric resistance welding system, including matrix keyboard, display device, communication device, processing unit；Processing unit has a data communication link including a scanner section, a parameter reading part, a parameter adjustment unit, an operating mode switching part, parameter reading part and parameter adjustment unit by communication device and welding controller foundation；When processing unit is in parameter monitoring pattern, parameter reading part reads welding controller currently all welding parameters in real time or with the first setpoint frequency by communication device, by display device to show；Parameter adjustment unit is according to input key assignments to change the welding parameter currently chosen in welding controller.The utility model can quickly position any one parameter by 4*4 matrix keyboards, and desired number is directly inputted when changing parameter, and strong applicability is easy to use；By display device with real-time display welding parameter, convenient for monitoring；Using MODBUS agreements, long transmission distance, strong antijamming capability.
Description
Technical field
The utility model is related to welding fields, belong to a kind of programmable device for medium frequency inverter electric resistance welding system.
Background technology
Existing programmable device is realized by 9 buttons, is all upper and lower page turning data one by one when finding parameter
It finds, and very few in the parameter that the upper primary property of screen is shown, needs to check that parameter is required for going to turn over one by one every time, and
Every time when modification parameter, need to first pass through left and right positioning number, then pass through upper downward numerical value, it appears very inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of programmable device for medium frequency inverter electric resistance welding system and its work sides
Method quickly positions any one parameter by 4*4 matrix keyboards, and desired number, applicability are directly inputted when changing parameter
By force, easy to use；By display device with real-time display welding parameter, convenient for monitoring；In addition, using MODBUS agreements, transmission
Distance is remote, strong antijamming capability.
In order to achieve the above objectives, the utility model provides the following technical solutions：
A kind of programmable device for medium frequency inverter electric resistance welding system, the medium frequency inverter electric resistance welding system have one to control
The welding controller of welding parameter, the programmable device include matrix keyboard, display device, communication device, processing unit；
The processing unit includes a scanner section, a parameter reading part, a parameter adjustment unit, an operating mode switching part,
Parameter reading part and parameter adjustment unit have a data communication link by communication device and welding controller foundation；
The display device is electrically connected with processing unit, according to the control instruction of processing unit to show corresponding picture；
There are two types of operating modes for the processing unit tool：Parameter adjustment mode and parameter monitoring pattern, processing unit pass through
Operating mode switching part is to complete the switching of itself operating mode；
The processing unit starts in response to programmable device, and initial operation mode is parameter monitoring pattern：
When processing unit is in parameter monitoring pattern, parameter reading part is by communication device in real time or with the first setting frequency
Rate reads welding controller currently all welding parameters, by display device to show；
The instruction of transferring of each welding parameter is answered with a key-value pair；
The scanner section is electrically connected with matrix keyboard, is electrically connected with parameter reading part, is electrically connected with operating mode switching part,
Scanner section is configured to read the input key assignments of matrix keyboard with the second setpoint frequency, and
It is set up simultaneously in response to following two conditions：1）The operating mode of processing unit be parameter monitoring pattern, 2）Matrix
The input key assignments of keyboard is the instruction of transferring of any one welding parameter, reads corresponding welding parameter in parameter reading part, is led to
Display device is crossed to show, and sends one first switching command to operating mode switching part；
The operating mode switching part is switched to parameter tune in response to the first switching command, by the operating mode of processing unit
Integral pattern；
The parameter adjustment unit is electrically connected with scanner section, is electrically connected with operating mode switching part, parameter adjustment unit in response to
The operating mode of processing unit is parameter adjustment mode, receives the matrix keyboard that scanner section is read in real time or with third setpoint frequency
Input key assignments, according to input key assignments to change the welding parameter currently chosen in welding controller.
In further embodiment, the parameter adjustment unit is further configured in response to following two conditions while setting up：
1）The operating mode of processing unit be parameter adjustment mode, 2）The scanner section received in a setting time threshold range is read
Input key assignments numerical value it is constant, one second switching command of feedback is to operating mode switching part；
The operating mode switching part switches to parameter prison in response to the second switching command, by the operating mode of processing unit
Control pattern.
In further embodiment, the setting time threshold value is 10s.
In further embodiment, the communication device is one 485 bus circuits comprising an ADM2483 chips.
In further embodiment, the parameter reading part and parameter adjustment unit use MODBUS agreements and welding controller
Carry out data communication.
In further embodiment, the programmable device has a supply unit；
The supply unit includes a power interface, the first voltage reduction module, the second voltage reduction module, third voltage reduction module,
In：
There is the power interface input terminal and an output end, input terminal to be electrically connected with a control cabinet；
The output end and display device of the first voltage reduction module electric connection of power supply interface, to by the output of power interface
Voltage is converted into the first operating voltage, and the first operating voltage is exported to display device；
Second voltage reduction module is electrically connected the output end and processing unit of the first voltage reduction module, to the first work is electric
Pressure is converted into the second operating voltage, and the second operating voltage is exported to processing unit；
The output end and communication device of the third voltage reduction module electric connection of power supply interface, to by the output of power interface
Voltage is converted into third operating voltage, and third operating voltage is exported to communication device.
In further embodiment, the output voltage of the power interface is 24V；
First operating voltage is 5V；
Second operating voltage is 3.3V；
The third operating voltage is 5V.
In further embodiment, the matrix keyboard uses 4*4 matrix keyboards.
In further embodiment, the display device uses the LCD12864 display screens with character library.
The utility model further mentions the working method that a kind of basis is previously used for the programmable device of medium frequency inverter electric resistance welding system,
The working method includes：
Step 1 starts in response to programmable device, and the operating mode of processing unit is switched to parameter monitoring pattern, driving ginseng
Number reading part reads welding controller currently all welding parameters in real time or with the first setpoint frequency by communication device, by aobvious
Showing device is to show；
Step 2, driving scanner section read the input key assignments of matrix keyboard with the second setpoint frequency, and
Input key assignments in response to matrix keyboard is the instruction of transferring of any one welding parameter, is read in parameter reading part
Corresponding welding parameter by display device to show, and sends one first switching command to operating mode switching part, will locate
The operating mode of reason device is switched to parameter adjustment mode；
Step 3, in response to processing unit operating mode be parameter adjustment mode, in real time or with third setpoint frequency receive
Scanner section read matrix keyboard input key assignments, driving parameter adjustment unit according to input key assignments with change in welding controller when
The welding parameter of preceding selection.
In further embodiment, the working method further includes：
It is set up simultaneously in response to following two conditions：1）The operating mode of processing unit be parameter adjustment mode, 2）One
The input key assignments numerical value that the scanner section received in setting time threshold range is read is constant, and driving parameter adjustment unit is to feed back one
Second switching command switches to parameter monitoring pattern to operating mode switching part, by the operating mode of processing unit.
The beneficial effects of the utility model are：
1）By 4*4 matrix keyboards, any one parameter is quickly positioned, desired number is directly inputted when changing parameter
Word, strong applicability are easy to use.
2）By display device with real-time display welding parameter, convenient for monitoring.
3）Using MODBUS agreements, long transmission distance, strong antijamming capability.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Description of the drawings
Fig. 1 is the structural schematic diagram of the programmable device for medium frequency inverter electric resistance welding system of the utility model.
Fig. 2 is the workflow schematic diagram of the programmable device for medium frequency inverter electric resistance welding system of the utility model.
Fig. 3 is the circuit diagram of the matrix keyboard of the programmable device for medium frequency inverter electric resistance welding system of the utility model.
Fig. 4 is the circuit diagram of the processing unit of the programmable device for medium frequency inverter electric resistance welding system of the utility model.
Fig. 5 is the circuit diagram of the display device of the programmable device for medium frequency inverter electric resistance welding system of the utility model.
Fig. 6 is the circuit diagram of the supply unit of the programmable device for medium frequency inverter electric resistance welding system of the utility model.
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the attached drawing 3 to attached drawing 6 of the utility model, the ginseng of the component other than hereafter especially dated component
Number and model selection, have no effect on the technical solution of the utility model explanation, and the circuit that attached drawing is provided is only that one of which is made
For the embodiment of reference.
In conjunction with Fig. 1, the utility model provides a kind of programmable device for medium frequency inverter electric resistance welding system, medium frequency inverter electricity
Welding resistance system has one to control the welding controller of welding parameter, and the programmable device includes matrix keyboard 10, display device
30, communication device 40, processing unit 20.
The processing unit 20 includes a scanner section 21, a parameter reading part 22, a parameter adjustment unit 23, an operating mode
Switching part 24, parameter reading part 22 and parameter adjustment unit 23 have a data communication by communication device 40 and welding controller foundation
Link.
Preferably, the communication device 40 is one 485 bus circuits comprising an ADM2483 chips.
The parameter reading part 22 and parameter adjustment unit 23 carry out data communication using MODBUS agreements and welding controller,
MODBUS frame formats are simple, compact, specification, are easy to transmit, and long transmission distance.
Further, multiple twin form, strong antijamming capability may be used in connection.
The display device 30 is electrically connected with processing unit 20, corresponding to show according to the control instruction of processing unit 20
Picture.
In the selection of display device 30, it can be configured according to the actual demand of user, such as when welding parameter is more,
Larger LCD screen can be selected, whole welding parameters is shown as much as possible, reduces page turning.
There are two types of operating modes for the tool of the processing unit 20：Parameter adjustment mode and parameter monitoring pattern, processing unit 20
By operating mode switching part 24 to complete the switching of itself operating mode.
Lower mask body introduces both operating modes.
The first operating mode, parameter monitoring pattern.
The processing unit 20 starts in response to programmable device, and initial operation mode is parameter monitoring pattern.
When processing unit 20 is in parameter monitoring pattern, parameter reading part 22 is by communication device 40 in real time or with first
Setpoint frequency reads welding controller currently all welding parameters, by display device 30 to show.
At this point, all welding parameters of welding controller are fed back in display device 30 in real time or periodically, work
Personnel can be by observing display device 30 to monitor welding controller, to control welding quality.
Second of operating mode, parameter adjustment mode.
The utility model setting first is as follows：The instruction of transferring of each welding parameter is answered with a key-value pair.It is found that welding ginseng
Several quantity is key assignments quantity limited, that usually less than a matrix keyboard 10 can input, especially when the matrix key of selection
4*4 matrix keyboards 10 when 10 key mapping of disk is more, such as in Fig. 3 etc., the key assignments that can be inputted is in terms of ten thousand, and welding parameter is extremely
There was only dozens of more.
Therefore the utility model answers the instruction of transferring of each welding parameter with a key-value pair, such as welding temperature and key assignments
001 corresponds to, and weld interval is corresponding with key assignments 002 etc..
The scanner section 21 is electrically connected with matrix keyboard 10, is electrically connected with parameter reading part 22, switches electricity with operating mode
Connection, scanner section 21 are configured to read the input key assignments of matrix keyboard 10 with the second setpoint frequency, and
It is set up simultaneously in response to following two conditions：1）The operating mode of processing unit 20 be parameter monitoring pattern, 2）Square
The input key assignments of battle array keyboard 10 is the instruction of transferring of any one welding parameter, reads corresponding welding ginseng in parameter reading part 22
Number by display device 30 to show, and sends one first switching command to operating mode switching part 24.
The operating mode switching part 24 is switched to ginseng in response to the first switching command, by the operating mode of processing unit 20
Number adjustment modes.
It should be appreciated that scanner section 21 is unrelated with the operating mode of processing unit 20 to the reading behavior of matrix keyboard 10, that is,
Even if processing unit 20 is in parameter monitoring pattern, scanner section 21 still reads the key assignments of matrix keyboard 10 in real-time or timing, with
Timely respond to the demand of user.
The parameter adjustment unit 23 is electrically connected with scanner section 21, is electrically connected with operating mode switching part 24, parameter adjustment unit
23 in response to processing unit 20 operating mode be parameter adjustment mode, in real time or with third setpoint frequency receive scanner section 21 read
The input key assignments of the matrix keyboard 10 taken, according to input key assignments to change the welding parameter currently chosen in welding controller.
When scanner section 21 scanning to matrix keyboard 10 input key assignments be when transferring instruction of any one welding parameter, say
Bright user at this time wants to change the welding parameter or checks the welding parameter.
For the latter, corresponding welding parameter in parameter reading part 22 is read, by display device 30 to show, for preceding
Person, scanner section 21 send one first switching command to operating mode switching part 24, and operating mode switching part 24 is cut in response to first
Instruction is changed, the operating mode of processing unit 20 is switched to parameter adjustment mode.
Likewise, the parameter adjustment unit 23 is further configured in response to following two conditions while setting up：1）Processing dress
Set 20 operating mode be parameter adjustment mode, 2）The scanner section 21 received in a setting time threshold range is read defeated
It is constant to enter key assignments numerical value, one second switching command of feedback to operating mode switching part 24.
The operating mode switching part 24 switches to ginseng in response to the second switching command, by the operating mode of processing unit 20
Number monitoring mode.
In certain time, when matrix keyboard 10 is updated without any numerical value, illustrate that user does not appoint in the time range
What operation behavior, processing unit 20 automatically switch into parameter monitoring pattern, to continue to monitor welding process.
Preferably, the setting time threshold value is 10s.
The Working mode switching method and root of the processing unit used in above each embodiment of the utility model
With the welding parameter changed in welding controller it is the prior art according to the input key assignments of matrix keyboard, it will by above and below
In the technical solution and implementation more to illustrate, merely with the prior art as a result, be not improvement to software/algorithm,
It is improved without to software and algorithm, you can realize the purpose of this utility model.
As for the powering mode of the programmable device, the utility model setting is as follows：
The programmable device has a supply unit.
The supply unit includes a power interface, the first voltage reduction module, the second voltage reduction module, third voltage reduction module,
In：
There is the power interface input terminal and an output end, input terminal to be electrically connected with a control cabinet.
The output end and display device 30 of the first voltage reduction module electric connection of power supply interface, to by the defeated of power interface
Go out voltage and be converted into the first operating voltage, and the first operating voltage is exported to display device 30.
Second voltage reduction module is electrically connected the output end and processing unit 20 of the first voltage reduction module, first to work
Voltage is converted into the second operating voltage, and the second operating voltage is exported to processing unit 20.
The output end and communication device 40 of the third voltage reduction module electric connection of power supply interface, to by the defeated of power interface
Go out voltage and be converted into third operating voltage, and third operating voltage is exported to communication device 40.
The output voltage of power interface, the first operating voltage, the second operating voltage, the concrete numerical value of third operating voltage are
According to the display device 30, the work requirements voltage of processing unit 20 and communication device 40 determines.
In conjunction with Fig. 4, Fig. 5, Fig. 6, for example, if we select the microcontroller of 32 STM32 series as processing unit
20 main control chip, display screen select the LCD12864 display screens with character library, 485 circuits to select 485 chips with isolation
It, can be as follows by aforementioned several voltage settings when ADM2483：
The output voltage of the power interface is 24V.
First operating voltage is 5V.
Second operating voltage is 3.3V.
The third operating voltage is 5V.
Specifically, power interface takes electricity, control cabinet to provide power interface 24V power supplys as initial power supply electricity from control cabinet
Pressure；The selection of first voltage reduction module uses Voltage stabilizing module LM2576S-5, and 24V is converted into 5V to power to display screen；Second decompression mould
Block selection uses voltage reduction module AMS1117-33, and 5V is converted into 3.3V to power to microcontroller；Third voltage reduction module is risen using gold
Positive 24V turns 5V power modules, and 24V is converted into 5V to 485 isolating chip ADM2483 power supplies.
In conjunction with Fig. 2, on the basis of being previously used for the programmable device of medium frequency inverter electric resistance welding system, the utility model further mentions
A kind of working method based on aforementioned programmable device, the working method include：
Step 1 starts in response to programmable device, and the operating mode of processing unit 20 is switched to parameter monitoring pattern, is driven
Parameter reading part 22 reads welding controller currently all welding parameters in real time or with the first setpoint frequency by communication device 40,
By display device 30 to show.
Step 2, driving scanner section 21 read the input key assignments of matrix keyboard 10 with the second setpoint frequency, and
Input key assignments in response to matrix keyboard 10 is the instruction of transferring of any one welding parameter, reads parameter reading part
Corresponding welding parameter in 22 by display device 30 to show, and sends one first switching command to operating mode and switches
The operating mode of processing unit 20 is switched to parameter adjustment mode by portion 24.
Step 3, in response to processing unit 20 operating mode be parameter adjustment mode, in real time or connect with third setpoint frequency
The input key assignments for the matrix keyboard 10 that scanner section 21 is read is received, driving parameter adjustment unit 23 is according to input key assignments to change welding control
The welding parameter currently chosen in device processed.
Further, the working method further includes：
It is set up simultaneously in response to following two conditions：1）The operating mode of processing unit 20 be parameter adjustment mode, 2）?
The input key assignments numerical value that the scanner section 21 that is received in one setting time threshold range is read is constant, driving parameter adjustment unit 23 with
One second switching command is fed back to operating mode switching part 24, and the operating mode of processing unit 20 is switched into parameter monitoring mould
Formula.
The utility model additionally provides a kind of software support mode.
When program start, each clock and each peripheral hardware are initialized, show start-up picture on a display screen,
All welding parameters are disposably read using MODBUS agreements from controller, because machine is unable to power down guarantor
Parameter is deposited, is required for re-reading all welding parameters in selection specification number each time.
Enter an endless loop function LCD_Process () in systemic circulation later, swtich states are used in this function
Machine handles each key assignment combination, whether has key pressing for judgment matrix keyboard 10, by the way of scanning.
switch(sta_mach)
{
case 0;
WELD_STA_Disp();
break;
case 50;
temp=LCD_CFC_Write(“*”,”#”,0);
if(temp<=50)
sta_mach=temp;
else if(temp!=0xffff)
(" setting option is not present LCD_Warn!");
else
sta_mach=0;
break;
case 1;
temp=(u16)WELDCODE_CUR.CODE_NUM;
Temp=LCD CFC Write (" procedure selection ", " # ", temp);
Case：Function WELD_STA_Disp () in 0 is used as main display interface, for being shown when not by key pressing
Welding result parameter, pressure value, specification number, bond pattern and welding points.
It after the completion of each state executes, all needs to set to 0 semaphore sta_mach, will show in next cycle
Changing interface is at main display interface.
U16 LCD_CFC_Write (char * p1, char * p2, u16 temp) function is parameter setting function, and p1 is
The title of arrange parameter, p2 are the units of arrange parameter, and temp is the last setting value of arrange parameter, is existed using this function
It just only needs to change these three parameters when display setting parameters perfect to show.
u16 LCD_CFC_Write(char*p1,char*p2,u16 temp)
{
u8 key_value;
u8 ExitFlag=1;
u8 i=0;
u8 WARN_DISP_STA=1;
u8 disp_en=1;
char sta[10];The current key assignments of // storage
memset(str,0,sizeof(str));// empty array
WARN_DISP_STA_MAIN=1;
While(ExitFlag)
{
If(WARN_DISP_STA||disp_en)
{
LCD_Clr();// clear screen
LCD_Display(1,1,(u8*)p1);// display arrange parameter title
LCD_Display(3,8,(u8*)p2);// the unit of display
If(str[0])
LCD_Data_Disp(3,8,atoi(str));
else
LCD_Data_Disp(3,8,temp);
Disp_en=0;
WARN_DISP_STA=0;
}
key_value=Key_Scan();
if(key_value!=17)
Dly_ms(50);
key_value=Key_Scan();
if(key_value<10)
{
…
In arrange parameter, confirm that key pressing is required for the value for judging to be arranged symbol undesirable each time, if not meeting
It is required that need to provide warning reset LCD_Warn (" duty ratio setting transfinite!").
void LCD_Warn(char *p)
{
u16 i;
LCD_Clr();// clear screen
LCD_Display(1,1,u8 *)p);
For(i=0;i<1000;i++)
{
Dly_ms(1);
}
}
If the parameter being arranged meets the requirements, enabled 485 transmitting terminals are ready for sending data, since 485 chip of machine selects
Be with isolation ADM2483 chips need to wait for the 10ms times when each next state switches, otherwise cannot send or
Receive complete MODBUS data frames.
EN_TX();
Delay_ms(10);
In machine, using serial ports 1 and 485 chip communications, it need to judge whether MODBUS data frames terminate in interruption.By
There is no postamble in MODBUS data frames, can only judge whether a frame terminates by the way of timing.It is opened in the interruption of serial ports 1
Timer 2.
TIM_Cmd(TIM2,ENABLE);
TIM_SetCounter(TIM2,0);
TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);
The interrupt priority level of timer 2 is less than serial ports 1, interrupts, will reset as long as there is data to come to make serial ports 1 to enter
The count value of timer 2, makes it count again, and only when the no data of frame data transmission end come, timer 2 counts
Enter interruption to setting value, so that Uart0_rev_comflag is set 1, notice principal function processing.
void TIM2_IRQHandler(void)
{
If(TIM_GetITStatus(TIM2,TIM_IT_Update)!=RESET)
{
TIM_Cmd(TIM2,DISABLE);// turn off timer 2
TIM_SetCounte(TIM2,0);
Recenum=0;
Uart0_rev_comflag=1;// frame, set flag bit are received, notice principal function calls receiving area
Manage function
USART_ITCconfig(USART,USART_IT_RXNE,DISABLE);
TIM_ClearITPendingBit(TIM2,TIM_IT_Update);
TIM_ClearFlag(TIM2,TIM_FLAG_Update);
}
}
This process is constantly recycled later.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of programmable device for medium frequency inverter electric resistance welding system, which has one to control weldering
Connect the welding controller of parameter, which is characterized in that the programmable device includes matrix keyboard, display device, communication device, processing dress
It sets；
The processing unit includes a scanner section, a parameter reading part, a parameter adjustment unit, an operating mode switching part, parameter
Reading part and parameter adjustment unit have a data communication link by communication device and welding controller foundation；
The display device is electrically connected with processing unit, according to the control instruction of processing unit to show corresponding picture；
There are two types of operating modes for the processing unit tool：Parameter adjustment mode and parameter monitoring pattern, processing unit pass through work
Pattern switching portion is to complete the switching of itself operating mode；
The parameter reading part reads welding controller currently all welding in real time or with the first setpoint frequency by communication device
Parameter, by display device to show；
The instruction of transferring of each welding parameter is answered with a key-value pair；
The scanner section is electrically connected with matrix keyboard, is electrically connected with parameter reading part, is electrically connected with operating mode switching part, scanning
Portion is configured to read the input key assignments of matrix keyboard with the second setpoint frequency；
The scanner section is configured to be the instruction of transferring of any one welding parameter, hair in response to the input key assignments of matrix keyboard
Send one first level signal to operating mode switching part；
The operating mode switching part is switched to parameter adjustment mould in response to the first level signal, by the operating mode of processing unit
Formula；
The parameter adjustment unit is electrically connected with scanner section, is electrically connected with operating mode switching part, and parameter adjustment unit is configured to loud
It should be parameter adjustment mode in the operating mode of processing unit, receive the matrix that scanner section is read in real time or with third setpoint frequency
The input key assignments of keyboard, according to input key assignments to change the welding parameter currently chosen in welding controller.
2. the programmable device according to claim 1 for medium frequency inverter electric resistance welding system, which is characterized in that the parameter tune
The whole input key assignments numerical value for being further configured to read in response to the scanner section that receives in a setting time threshold range is not
Become, one second electrical level signal of feedback to operating mode switching part；
The operating mode switching part switches to parameter monitoring mould in response to second electrical level signal, by the operating mode of processing unit
Formula.
3. the programmable device according to claim 1 for medium frequency inverter electric resistance welding system, which is characterized in that the communication dress
It is set to one 485 bus circuits comprising an ADM2483 chips.
4. the programmable device according to claim 3 for medium frequency inverter electric resistance welding system, which is characterized in that the parameter is read
Portion and parameter adjustment unit is taken to carry out data communication using MODBUS agreements and welding controller.
5. the programmable device according to claim 1 for medium frequency inverter electric resistance welding system, which is characterized in that the communication dress
It sets and uses twisted-pair feeder.
6. the programmable device according to claim 1 for medium frequency inverter electric resistance welding system, which is characterized in that the programmable device
With a supply unit；
The supply unit includes a power interface, the first voltage reduction module, the second voltage reduction module, third voltage reduction module, wherein：
There is the power interface input terminal and an output end, input terminal to be electrically connected with a control cabinet；
The output end and display device of the first voltage reduction module electric connection of power supply interface, to by the output voltage of power interface
It is converted into the first operating voltage, and the first operating voltage is exported to display device；
Second voltage reduction module is electrically connected the output end and processing unit of the first voltage reduction module, to turn the first operating voltage
It changes the second operating voltage into, and the second operating voltage is exported to processing unit；
The output end and communication device of the third voltage reduction module electric connection of power supply interface, to by the output voltage of power interface
It is converted into third operating voltage, and third operating voltage is exported to communication device.
7. the programmable device according to claim 6 for medium frequency inverter electric resistance welding system, which is characterized in that the power supply connects
The output voltage of mouth is 24V；
First operating voltage is 5V；
Second operating voltage is 3.3V；
The third operating voltage is 5V.
8. the programmable device according to claim 1 for medium frequency inverter electric resistance welding system, which is characterized in that the matrix key
Disk uses 4*4 matrix keyboards.
9. the programmable device according to claim 1 for medium frequency inverter electric resistance welding system, which is characterized in that the display dress
It sets using the LCD12864 display screens with character library.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820470575.3U CN208027159U (en) | 2018-03-30 | 2018-03-30 | Programmable device for medium frequency inverter electric resistance welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820470575.3U CN208027159U (en) | 2018-03-30 | 2018-03-30 | Programmable device for medium frequency inverter electric resistance welding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208027159U true CN208027159U (en) | 2018-10-30 |
Family
ID=63910063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820470575.3U Expired - Fee Related CN208027159U (en) | 2018-03-30 | 2018-03-30 | Programmable device for medium frequency inverter electric resistance welding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208027159U (en) |
-
2018
- 2018-03-30 CN CN201820470575.3U patent/CN208027159U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 |