System and method for controlling welding parameter command limits

Abstract

The disclosed example power supplies, user interfaces, and methods are provided for inputting and / or receiving command value upper and lower limits for a plurality of welding parameters associated with a welding power source and / or wire feeder. In some examples, the command value upper and lower limits correspond to an operating range for the respective welding parameter, such that during a welding operation, the welding parameter command value is bounded by the command value upper and lower limits when in a lock mode. The command value upper and lower limits are set such that any variation in the welding parameter value (e.g., output value) during the welding operation is bounded by the command value upper and lower limits when the lock mode is activated.

Description

[0001] Cross-references to related applications

[0002] This application hereby claims priority and benefit to U.S. Provisional Application Serial No. 63 / 002,000, filed March 30, 2020, entitled “Systems and methods for controlling welding parameter command limits”. U.S. Provisional Application Serial No. 63 / 002,000 is incorporated herein by reference in its entirety for all purposes. Background Technology

[0003] Common metal welding techniques utilize the heat generated by an electric arc to molten the workpiece, thus facilitating the welding process. One technique employing this arc principle is wire-fed welding. With proper adjustment of the welding apparatus, the wire feed and arc cycle will proceed smoothly, resulting in a good weld.

[0004] Traditionally, during welding operations, the operator selects the level and type of resources provided to the welding position, depending on the details of the weld and the material being welded. However, different types of welding wire electrodes perform well under different operating settings of the welding apparatus.

[0005] Typically, welding output can vary significantly during welding operations. If the operator does not continuously monitor and / or adjust the output during operation, the weld quality may be affected. Summary of the Invention

[0006] The disclosed example power supply, user interface, and method are provided for controlling welding parameter command limits. The disclosed system and method provide tools (e.g., user interface, welding scheme, network interface, etc.) for inputting and / or receiving upper and lower command value limits for multiple welding parameters associated with the welding power source and / or wire feeder. The upper and lower command value limits correspond to the operating range of the respective welding parameters, such that during welding operations, the welding parameter command values ​​are defined by the upper and lower command value limits in locked mode. Attached Figure Description

[0007] These and other features, aspects, and advantages of this disclosure will be better understood when the following detailed description is read with reference to the accompanying drawings, throughout which similar reference numerals denote similar parts, in which:

[0008] Figure 1AThis is a schematic diagram of an example welding system according to various aspects of this disclosure, the example welding system including a power supply having a user interface for implementing automatic control of a range of command values ​​for welding parameters.

[0009] Figure 1B This is a schematic diagram of another example welding system according to various aspects of this disclosure, which includes a wire feeder having a user interface for implementing automatic control over a range of command values ​​for welding parameters.

[0010] Figure 1C This is a schematic diagram of another example welding system according to various aspects of this disclosure, which includes a user interface connected to a welding power supply and / or wire feeder to implement automatic control of a range of command values ​​for welding parameters.

[0011] Figure 2 An example graphical user interface for displaying welding parameter command limits is provided in accordance with various aspects of this disclosure.

[0012] Figure 3 Another example graphical user interface is provided for displaying welding parameter command limits in accordance with various aspects of this disclosure.

[0013] Figure 4 Flowcharts representing example machine-readable instructions according to various aspects of this disclosure are provided, and these example machine-readable instructions can be generated by... Figures 1A to 1C The example system is implemented to enforce the selection of limit values ​​for welding parameters for the welding process.

[0014] Figure 5 Another flowchart is provided representing example machine-readable instructions based on various aspects of this disclosure, which can be derived from... Figures 1A to 1C The example system is implemented to enforce the selection of limit values ​​for welding parameters for the welding process.

[0015] The accompanying drawings are not necessarily drawn to scale. Where appropriate, similar or identical reference numerals are used to indicate similar or identical parts. Detailed Implementation

[0016] The disclosed example power supply, user interface, and methods are provided for inputting and / or receiving command value upper and lower limits for multiple welding parameters associated with the welding power supply and / or wire feeder. In some examples, the command value upper and lower limits correspond to a command value range for the respective welding parameter, such that during welding operations, in locked mode, the commanded welding value (e.g., a target output value or a specified output value) is defined by the command value upper and lower limits. The command value upper and lower limits are set such that, when locked mode is active, any changes to the commanded welding parameter value (e.g., the target output value) are defined by the command value upper and lower limits.

[0017] For example, when operating in locked mode, the welding parameter command values ​​are selected as an upper and lower limit. Therefore, the operator cannot manually adjust the target values ​​of the welding parameters to exceed or fall below the selected upper or lower limit, and the welding scheme cannot control the welding parameter command values ​​to be higher or lower than the selected limits.

[0018] In some examples, the operator can use a user interface to set, activate, or deactivate the locking mode. The locking mode can be activated to lock all specified limits (e.g., both the upper and lower command values ​​of multiple welding parameters), or selectively to lock one or more specified limits (e.g., one or more of the upper and lower command values ​​of a first or second welding parameter). Therefore, during welding operations, the control circuitry maintains each welding command parameter value to operate according to one or more locked limits.

[0019] In some examples, the user interface includes one or more of a knob, touchscreen panel, or dial that can be used to set, activate, or deactivate limits. In some examples, the upper and / or lower limits may be provided by a soldering scheme (stored in memory and / or provided via a network) and / or a remote computer device.

[0020] In some examples, in addition to selecting specific welding parameter values, command value upper and lower limits can be calculated based on one or more inputs. For example, a control circuit system can calculate upper or lower limits for a first or second welding parameter based on one or more welding parameters, such as, but not limited to, voltage, current, power, wire feed speed, gas flow rate, pulse rate, workpiece thickness, workpiece material type, workpiece geometry, electrode type, welding process, travel speed, arc length, arc control, joint type, type of welding tool used, and type of welding performed (voltage upper and / or voltage lower limits can be calculated based on wire feed speed and / or upper and / or lower limits of wire feed speed).

[0021] The systems and methods disclosed herein can be implemented on one or more components of a welding system (e.g., a welding power supply). Components of the welding system may include a graphical user interface (GUI) comprising a first graphical interface representing a first welding parameter (e.g., voltage) and a second graphical interface representing a second welding parameter (e.g., wire feed speed). A control circuitry system may be configured to receive data corresponding to a range of command values ​​for one of the first or second welding parameters, each range having an upper and / or lower limit. In some examples, each graphical interface may include a graphical strip that provides a visual representation of both the operating range (e.g., within the upper and lower limits of the command values) and a visual representation of values ​​or ranges outside the operating range (e.g., corresponding to the available range of command values ​​for a particular welding parameter).

[0022] Advantageously, the systems and methods disclosed herein provide easy-to-use tools and techniques for setting and identifying upper and lower limits of command values ​​and their locking. The graphical user interface can employ various indicators, such as color schemes. Furthermore, one or more menu-driven selection devices and methods are employed to set command limits to provide an allowable range of adjustment, (e.g., via a welding power supply and / or computing platform providing the user interface, from which menus or menu items can be modified and / or selected).

[0023] In the disclosed example, a welding system includes: a welding power supply; a graphical user interface (GUI) including a graphical interface representing welding parameters; and a control circuit system configured to: receive data corresponding to a command value range of the welding parameters, the command value range having an upper or lower limit; generate a graphical band representing the command value range of the welding parameters; and control the welding power supply to maintain the command values ​​within the command value range when in a locked mode.

[0024] In some examples, the user interface is used to set, activate, or deactivate the upper or lower limit values ​​associated with the graphical strip of the welding parameter.

[0025] In some examples, the user interface is used to set, activate, or deactivate the lock mode for the welding parameter.

[0026] In some examples, the locking mode corresponds to the upper or lower limit of the command value range corresponding to the welding parameter, wherein each corresponding upper and lower limit value is configured to be activated or deactivated independently.

[0027] In some examples, the control circuitry is further configured to receive one or more specific welding parameters and, based on one of these specific welding parameters, calculate an upper or lower limit value for that welding parameter.

[0028] In some examples, the control circuitry is further configured to display a value corresponding to the upper or lower limit of the commanded value range of the welding parameter. In another example, the control circuitry is further configured to generate an alarm when the commanded value falls within a threshold level of the upper or lower limit of the welding parameter.

[0029] In some examples, the user interface is used to adjust the range of command values ​​for the welding parameters. In these examples, the user interface is a selector knob or a touchscreen.

[0030] In some examples, the user interface is used to set, activate, or deactivate the upper or lower limit associated with the command value range of the welding parameter.

[0031] In the disclosed example, a welding system includes: a welding power supply; a graphical user interface (GUI) including a first graphical interface representing a first welding parameter and a second graphical interface representing a second welding parameter; and a control circuit system configured to: receive data corresponding to an upper or lower command value limit associated with the first or second welding parameter; receive via the user interface a command for activating or deactivating a lock mode of the upper or lower command value limit of the first or second welding parameter; generate a first graphical band representing a command value range of the first welding parameter between the corresponding upper and lower command value limits; generate a second graphical band representing a command value range of the second welding parameter between the corresponding upper and lower command value limits; and control the welding power supply to maintain the first or second command value within the corresponding command value range when in a lock mode.

[0032] In some examples, the control circuitry is further configured to: receive data from one or more sensors corresponding to a first command value and a second command value for each of the first and second welding parameters; display a first marker representing the first command value on the first graphical interface; and display a second marker representing the second command value on the second graphical interface.

[0033] In some examples, each graphical interface further includes numerical values ​​corresponding to the first command value and the second command value. In the examples, the first welding parameter is one or more of voltage or arc length. In the examples, the second welding parameter is one or more of wire feed speed or ampere number.

[0034] In some examples, the control circuitry is further configured to display a first characteristic on the first or second graphic strip. In these examples, each portion of the graphical interface displays a graphical operating range corresponding to the operating range of the respective welding parameter, wherein portions of the graphical operating range outside the corresponding graphic strip are displayed with a second characteristic. In these examples, the first or second characteristic includes one of color, brightness, shape, size, or pattern. In some examples, the first characteristic is a first color, and the second characteristic is a second color.

[0035] In the disclosed example, a welding system includes: a welding power supply; a graphical user interface (GUI) including a first graphical interface representing a first welding parameter and a second graphical interface representing a second welding parameter; and a control circuit system configured to: receive data corresponding to an upper or lower command value limit associated with the first or second welding parameter via a menu-driven selection device; receive a command via the menu-driven selection device for activating or deactivating a lock mode of the upper or lower command value limit of the first or second welding parameter; generate a first graphical band representing a command value range of the first welding parameter between the corresponding upper and lower command value limits; generate a second graphical band representing a command value range of the second welding parameter between the corresponding upper and lower command value limits; and control the welding power supply to maintain the first or second command value within the corresponding command value range when in a lock mode.

[0036] As used herein, "power conversion circuit system" and / or "power conversion circuit" refers to a circuit system and / or electrical component that converts electricity from one or more first forms (e.g., electricity output from a generator) into one or more second forms having any combination of voltage, current, frequency, and / or response characteristics. A power conversion circuit system may include safety circuit systems, output selection circuit systems, measurement and / or control circuit systems, and / or any other circuitry for providing appropriate characteristics.

[0037] As used herein, the terms “first” and “second” can be used to enumerate different parts or elements of the same type and do not necessarily imply any particular order.

[0038] As used herein, the term "welding system" includes any device capable of supplying power for welding, plasma cutting, induction heating, carbon arc air cutting (e.g., CAC-A) and / or hot wire welding / preheating (including laser welding and laser cladding), including inverters, converters, choppers, resonant power supplies, quasi-resonant power supplies, etc., and associated control circuitry and other auxiliary circuitry.

[0039] As used herein, the term "welding power" refers to power suitable for welding, plasma cutting, induction heating, CAC-A and / or hot wire welding / preheating (including laser welding and laser cladding). As used herein, the terms "welding power supply" and / or "power supply" refer to any device capable of supplying power to welding, plasma cutting, induction heating, CAC-A and / or hot wire welding / preheating (including laser welding and laser cladding) when power is applied thereto, including but not limited to inverters, converters, resonant power supplies, quasi-resonant power supplies, and the control circuitry and other auxiliary circuitry associated therewith.

[0040] As used herein, “circuit” or “circuit system” includes any analog and / or digital components, power and / or control elements (such as microprocessors, digital signal processors (DSPs), software, etc.), discrete components and / or integrated components, or multiple parts and / or combinations thereof.

[0041] As used herein, the terms “control circuit,” “control circuit system,” and / or “controller” can include digital and / or analog circuit systems, discrete and / or integrated circuit systems, microprocessors, digital signal processors (DSPs), and / or other logic circuit systems and / or associated software, hardware, and / or firmware. Control circuitry or control circuit systems may reside on one or more circuit boards that form part or all of a controller and are used to control the soldering process, devices such as power supplies or wire feeders, and / or any other type of soldering-related system.

[0042] As used herein, the term "memory" includes volatile and non-volatile memory devices and / or other storage devices.

[0043] As used herein, the terms “torch,” “welding torch,” “welding tool,” or “welding instrument” refer to a device configured to manipulate for performing welding-related tasks and may include handheld welding torches, robotic welding torches, welding guns, scraping tools, cutting tools, or other devices for performing welding processes.

[0044] As used herein, the terms “welding mode,” “welding process,” “welding type process,” or “welding operation” refer to the type of process or output used, such as current-controlled (CC), voltage-controlled (CV), pulse-modulated gas metal arc welding (GMAW), flux-cored wire arc welding (FCAW), gas tungsten inert gas welding (GTAW, e.g., TIG), metal shielded arc welding (SMAW), spraying, short-circuiting, CAC-A, scraping process, plasma cutting, cutting process, and / or any other type of welding process.

[0045] As used herein, the term "welding program" or "weld program" includes at least one set of welding parameters for controlling welding. A welding program may further include other software, algorithms, processes, or other logic for controlling one or more welding devices to perform welding.

[0046] Now turn to the attached diagram. Figure 1A This is a block diagram of an example welding system 100 having a welding power supply 102, a wire feeder 104, and a welding torch 106. The welding system 100 is intuitively configured, based on configurable and / or default settings of the power supply 102 and / or wire feeder 104, to power the welding application, control the welding application, and supply consumables to the welding application. In other words, one or more input devices (such as a user interface, selector switch, knob, touchscreen input) receive input from the operator relating to desired changes in the values ​​of one or more welding parameters to specify upper and / or lower limits for one or more welding parameters. Once the limits are specified, another input device can be enabled to set, activate, or deactivate a lockout mode. In some examples, a separate technique, such as a double-tap gesture, can be applied to a previously used input device, indicating a command for a lockout mode.

[0047] In some examples, the power supply 102 directly supplies input power to the welding torch 106. The welding torch 106 can be a torch configured for shielded metal arc welding (SMAW, or electrode welding), gas tungsten inert gas welding (GTAW, or tungsten inert gas (TIG) welding), gas metal arc welding (GMAW), or flux-cored wire arc welding (FCAW) based on the desired welding application. In the illustrated example, the power supply 102 is configured to supply power to the wire feeder 104, and the wire feeder 104 can be configured to deliver input power to the welding torch 106. In addition to supplying input power, the wire feeder 104 can also supply filler metal to the welding torch 106 for various welding applications (e.g., GMAW welding, flux-cored wire arc welding (FCAW)). Although Figure 1AExample system 100 includes wire feeder 104 (e.g., for GMAW or FCAW welding), but wire feeder 104 can be replaced by any other type of remote accessory device, such as a remote control interface for electrode welding and / or GTAW welding that provides electrode welding and / or GTAW welding.

[0048] Power supply 102 receives main power 108 (e.g., from the AC grid, engine / generator set, battery, or other energy generation or storage device, or a combination thereof), regulates the main power, and provides output power to one or more welding devices as required by system 100. Main power 108 can be supplied from a remote location (e.g., the main power can originate from the grid). Power supply 102 includes a power conversion circuit system 110, which may include transformers, rectifiers, switches, etc., capable of converting AC input power into AC and / or DC output power as required by system 100 (e.g., specific welding processes and schemes). Power conversion circuit system 110 converts the input power (e.g., main power 108) into welding-type power based on welding voltage setpoints (e.g., upper and / or lower limits) and commands the welding-type power output via welding circuitry.

[0049] In some examples, the power conversion circuitry 110 is configured to convert main power 108 into both welding power output and auxiliary power output. However, in other examples, the power conversion circuitry 110 is adapted to convert only the main power into welding power output and provides a separate auxiliary converter 111 to convert the main power into auxiliary power. In some other examples, the power supply 102 receives the converted auxiliary power output directly from a wall socket. The power supply 102 can employ any suitable power conversion system or mechanism to generate and supply both welding power and auxiliary power.

[0050] Power supply 102 includes a control circuitry system 112 for controlling the operation of power supply 102. Power supply 102 also includes a user interface 114. The control circuitry system 112 receives input from the user interface 114, through which the user can specify upper and / or lower limits, enable lockout modes, select processes, and / or input desired parameters (e.g., voltage, current, specific pulse or non-pulse welding schemes, etc.). The user interface 114 can receive input using one or more input devices 115, such as via a keypad, keyboard, physical buttons, touchscreen (e.g., software buttons), voice activation system, wireless devices, etc. Furthermore, the control circuitry system 112 controls operating parameters based on user input and other current operating parameters. Specifically, the user interface 114 may include a display 116 for presenting, showing, or indicating information to the operator. The control circuitry system 112 may also include an interface circuitry system for transmitting data to other devices in system 100, such as wire feeder 104. For example, in some cases, the power supply 102 communicates wirelessly with other welding devices within the welding system 100. Additionally, in some cases, the power supply 102 communicates with other welding devices using a wired connection, such as by transmitting data via a network (e.g., Ethernet, 10baseT, 10base100, etc.) using a network interface controller (NIC). Figure 1A In the example, the control circuit system 112 communicates with the wire feeder 104 via the welding circuit through the communication transceiver 118, as described below.

[0051] In some examples, selection tools may be displayed as graphical input devices on the color display screen 116. For example, the color display screen 116 may be a touchscreen configured to receive input from the user via such graphical input devices displayed on the color display screen 116. For example, in some examples, instead of (or as a supplement to) an actual physical input device disposed on the user interface 114, other types of user input elements such as graphical buttons, sliders, knobs, etc., displayed via the color display screen 116 may be used to receive input from the user. Figure 2 The selection tool shown can be used, for example, as a display associated with a separate input device (e.g., a remote control and / or a physical selector) to provide a visual indication of the selected welding parameters and associated limits.

[0052] The control circuitry system 112 includes at least one controller or processor 120 that controls the operation of the power supply 102. The control circuitry system 112 receives and processes multiple inputs associated with the performance and requirements of the system 100. The processor 120 may include one or more microprocessors (such as one or more "general purpose" microprocessors, one or more special purpose microprocessors, and / or ASICs) and / or any other type of processing device. For example, the processor 120 may include one or more digital signal processors (DSPs).

[0053] In some examples, the control circuitry 112 is configured to implement the limit setting features disclosed herein. For example, the control circuitry 112 receives inputs associated with upper and / or lower limits of one or more welding command parameters (e.g., input from the operator and / or data associated with a specific welding procedure, tool, or type). Based on the inputs, the control circuitry 112 can store the upper and lower limits as instructions 125 in memory 124 and / or storage device 123. In the example, welding parameter values ​​are selected (e.g., from operator input and / or data associated with a specific welding procedure, tool, or type), and the control circuitry 112 calculates the range within the limits. The control circuitry 112 then uses these limits to control the power supply and / or control the wire feeder to advance the electrode wire, based on the calculated limits and the selected welding parameter values.

[0054] In some examples, the control circuitry 112 calculates a threshold quantity (e.g., percentage, numerical value, etc.) within a calculated range. An alarm can be provided to the operator in response to a command value entering one or more of the upper and lower limits of the command value.

[0055] In some examples, once one or more ranges of specific welding parameters(s) have been calculated, these ranges(s) and their corresponding upper and lower command value limits can be specified (e.g., by the operator or welding process) as custom settings associated with a specific welding operation, tool, welding machine, etc., and can be identified using identifiers for easy retrieval. These custom settings can then be stored in memory (e.g., in storage devices(s) 123 and / or memory 124), and can be invoked via interface 114 and / or displayed on display 116 for viewing and selection.

[0056] In some examples, control circuitry 112 stores one or more welding procedure sequences, such as those associated with welding process types (e.g., metal inert gas (MIG) or tungsten inert gas (GTAW) welding processes, plasma cutting, etc.), in memory 124. Each welding procedure sequence may contain one or more welding parameter values ​​and associated ranges, as disclosed herein. In some examples, input from a user may indicate the expected upper and / or lower limits for each welding parameter value of the selected welding procedure sequence, as disclosed herein. Control circuitry 112 may access one or more welding procedure sequences in response to input (e.g., from welding operation sequences and / or operator input). Input may be provided via user interface 114 and / or from a remote controller via network interface 117.

[0057] The locking indicator 233 can be used to set, activate, or deactivate one or more of the selected upper and lower command value limits. Therefore, the operator cannot manually adjust the welding parameters to exceed or fall below the selected upper or lower command value limits, nor can the welding scheme control the welding parameters to exceed the selected limits. The locking mode can be activated to lock all specified limits (e.g., both the upper and lower command value limits of the first and second welding parameters), or selectively lock one or more specified limits (e.g., one or more of the upper and lower command value limits of the first or second welding parameter). Therefore, during welding operations, the control circuitry maintains each welding parameter command value according to one or more locked limits for operation.

[0058] Example control circuitry system 112 includes one or more storage devices 123 and one or more memory devices 124. The storage devices 123 (e.g., non-volatile memory devices) may include ROM, flash memory, hard disk drive, and / or any other suitable optical storage medium, magnetic storage medium, and / or solid-state storage medium and / or combinations thereof. Storage devices 123 store data (e.g., data corresponding to the welding application), instructions (e.g., software or firmware for performing the welding process), and / or any other suitable data. Examples of data stored for the welding application include torch posture (e.g., orientation), distance between the contact nozzle and the workpiece, voltage, current, welding apparatus settings, deposition rate, wire feed speed, weld pool flowability, etc.

[0059] Memory device 124 may include volatile memory (such as random access memory (RAM)) and / or non-volatile memory (such as read-only memory (ROM)). Memory device 124 and / or (multiple) storage devices 123 may store various information and may be used for various purposes. For example, memory device 124 and / or (multiple) storage devices 123 may store processor-executable instructions 125 (e.g., firmware or software) for execution by processor 120. Additionally, one or more control schemes for various welding processes, along with associated settings and parameters, may be stored in storage device 123 and / or memory device 124 along with codes configured to provide specific outputs during operation (e.g., initiating wire feed, allowing gas flow, capturing welding-related data, detecting short-circuit parameters, determining spatter amount). One or more lists or lookup tables and / or network connections to various databases may be provided to inform decisions such as accessing preferred welding parameters, storing updated welding parameter settings, etc.

[0060] In some examples, welding power flows from the power conversion circuit system 110 through the welding cable 126 to the wire feeder 104 and the welding torch 106. Example welding cable 126 may be attached to and detached from welding terminals at each of the power supply 102 and the wire feeder 104 (e.g., to facilitate replacement of welding cable 126 in case of wear or damage). Furthermore, in some examples, welding data is provided via welding cable 126, such that welding power and welding data are provided and transmitted together via welding cable 126. A communication transceiver 118 is communicatively coupled to welding cable 126 to transmit (e.g., send / receive) data via welding cable 126. Communication transceiver 118 may be implemented using serial communication (e.g., full-duplex RS-232 or RS-422, or half-duplex RS-485), network communication (e.g., Ethernet, PROFIBUS, IEEE 802.1X wireless communication, etc.), parallel communication, and / or any other type of communication technology. In some examples, communication transceiver 118 can communicate via soldered cable 126.

[0061] Example communication transceiver 118 includes receiver circuitry 121 and transmitter circuitry 122. Typically, receiver circuitry 121 receives data transmitted from wire feeder 104 via welding cable 126, and transmitter circuitry 122 transmits data to wire feeder 104 via welding cable 126. Communication transceiver 118 is capable of remotely configuring power supply 102 from the location of wire feeder 104, and / or commanding and / or controlling the wire feed speed output by wire feeder 104 and / or the welding power (e.g., voltage, current) output by power supply 102. In some examples, communication is transmitted via dedicated cables between components and / or wireless communication channels, as well as other suitable communication devices and / or technologies.

[0062] Example wire feeder 104 also includes a communication transceiver 119, which may be similar to or identical in structure and / or function to communication transceiver 118. Although in Figure 1A The diagram illustrates communication via a single communication cable, but other communication media, such as wireless media, power line communication, and / or any other communication media, can also be used.

[0063] In some examples, gas supplier 128 provides a shielding gas, such as argon, helium, carbon dioxide, etc., depending on the welding application. The shielding gas flows to valve 130, which controls the gas flow and, if necessary, can be selected to allow modulation or regulation of the amount of gas supplied to the welding application. Valve 130 can be opened, closed, or otherwise operated by control circuitry system 112 to allow, prohibit, or control the flow of gas (e.g., shielding gas) through valve 130. The shielding gas exits valve 130 and flows via cable 132 (in some embodiments, this may be encapsulated with the welding power output) to wire feeder 104, which provides the shielding gas for the welding application. In some examples, welding system 100 does not include gas supplier 128, valve 130, and / or cable 132.

[0064] In some examples, wire feeder 104 uses welding power to power various components within wire feeder 104, such as wire feeder controller 134. As described above, welding cable 126 can be configured to provide or supply welding power. Power supply 102 can also communicate with communication transceiver 119 of wire feeder 104 using welding cable 126 and cable communication transceiver 118 disposed within power supply 102. In some examples, communication transceiver 119 is substantially similar to communication transceiver 118 of power supply 102. Wire feeder controller 134 controls the operation of wire feeder 104. In some examples, wire feeder 104 uses wire feeder controller 134 to detect whether wire feeder 104 is communicating with power supply 102, and if wire feeder 104 is communicating with power supply 102, to detect the current welding process of power supply 102.

[0065] In this example, power supply 102 delivers power directly to welding torch 106 without the use of any contactors. In this example, power regulation is managed by control circuitry 112 and / or power conversion circuitry 110. In some examples, contactors 135 (e.g., high-ampere relays) are employed and controlled by wire feeder controller 134, and are configured to allow or disable the continued flow of welding power to welding cable 126 for welding applications.

[0066] In some examples, contactor 135 is an electromechanical device. However, contactor 135 can be any other suitable device, such as a solid-state device. Wire feeder 104 includes a wire driver 136 that receives a control signal from wire feeder controller 134 to drive roller 138, which rotates to pull the welding wire away from wire spool 140. The welding wire is supplied to the welding application via torch cable 142. Similarly, shielding gas can be supplied from cable 132 via cable 142 to wire feeder 104. Electrode wire, shielding gas, and power from welding cable 126 are combined together and / or supplied separately to welding torch 106 in a single torch cable 144. In some examples, contactor 135 is omitted, and output or welding-type power is started and stopped by power supply 102 without the need for contactor 135. In some examples, the wire feeder 102 includes or is connected to one or more sensors 127 to monitor one or more welding parameters (e.g., power, voltage, current, wire feed speed, etc.) during the welding process, thereby notifying the wire feeder controller 134. In some examples, the welding power supply 102 includes one or more sensors.

[0067] Welding torch 106 delivers welding wire, welding power, and / or shielding gas for welding applications. Welding torch 106 is used to establish a welding arc between welding torch 106 and workpiece 146. Working cable 148 couples workpiece 146 to power supply 102 (e.g., to power conversion circuitry 110) to provide a return path for welding current (e.g., as part of a welding circuit). Example working cable 148 may be attached to and / or detached from power supply 102 for easy replacement of working cable 148. Working cable 148 may be terminated with clamp 150 (or another power connection device) that couples power supply 102 to workpiece 146. In some examples, welding torch 106 includes or is connected to one or more sensors 147 to monitor one or more welding parameters (e.g., power, voltage, current, wire feed speed, etc.) to notify wire feeder controllers 134 and / or 112 during the welding process. Although a welding torch 106 (e.g., a welding tool as described herein) is shown connected to a welding power supply 102 via a wire feeder 104, in some examples, the welding tool may be directly connected to the welding power supply 102. For example, a scraper and / or cutting tool may be directly connected to a terminal or another power outlet of the welding power supply 102. In some examples, the wire feeder is integrated with the power supply, and a terminal or other power outlet is provided on the housing of such an integrated housing.

[0068] Figure 1B This is a schematic diagram of another example welding system 152, in which the wire feeder 104 includes a user interface 114, serving as a supplement to or alternative to the user interface on the welding power supply 102. Figure 1B In the example, the control circuit system 134 of the wire feeder 104 is implemented according to reference. Figure 1A The control circuit system 112 describes the determination of the welding procedure and welding parameters.

[0069] Figure 1C This is a schematic diagram of another example welding system 154 including a separate user interface 156. The user interface 156 is a separate device and can be connected to the welding power supply 102 and / or wire feeder 104 to provide command and / or control information. The example user interface 156 includes an input device 115 and a display 116, and includes a control circuitry system 158. The example control circuitry system 158 includes processor(s) 120 and a memory 124 storing instructions 125. The example user interface 156 further includes a communication transceiver 119 for enabling communication between the user interface 156 and the welding power supply 102 and / or wire feeder.

[0070] although Figures 1A to 1C The interfaces (114, 156) are shown as having a user interface integrated with a specific system; however, this illustration is exemplary, allowing one or more interfaces disclosed herein, as well as additional user interfaces, to be incorporated into one or more example welding systems disclosed herein. Furthermore, although the power supply 102 and wire feeder 104 are shown as separate units, in some examples, the power supply and wire feeder may be housed in a single housing or otherwise integrated. Additionally or alternatively, in some examples, a single controller, control circuitry, and / or interface may control the operation of both the power supply and the wire feeder.

[0071] Figure 2 A sample graphical user interface 200 is shown, which can be used for implementation. Figures 1A to 1C The (multiple) graphical user interfaces 114, 156. Figure 2 The graphical user interface 200 includes one or more graphical interfaces 202 and 204, an upper limit indicator 230, a lower limit indicator 231, a lock indicator 233, and / or one or more selectors 232 and 234 to allow a user to configure one or more welding parameters for a selected welding process. The graphical user interface 200 may include... Figure 2The examples 202 and 204 show more or fewer graphical interfaces. In some examples, the upper limit indicator 230, lower limit indicator 231, and / or lock indicator 233 can operate as selection devices (e.g., buttons, membrane panel switches, touch-enabled screen icons, etc.) so that they can be used to set, activate, and / or deactivate the upper limit, lower limit, or lock mode, respectively. In some examples, in addition to or as an alternative to manual selection techniques, one or more menu-driven selection devices can be employed (e.g., via a welding power supply and / or computing platform that provides a user interface from which menus or menu items can be modified and / or selected). For example, the computing platform can be connected to the control device (e.g., the welding power supply and / or auxiliary device) via a wired or wireless connection (e.g., via a network), so that command limits can be modified and / or selected using menu-enabled devices and / or software.

[0072] During selection, the device may require one or more actions associated with a given result. Therefore, to set a value, the device might be pressed for a few seconds; to activate the lock, it might be tapped twice quickly in succession; to deactivate, two buttons might be pressed simultaneously; and so on. The graphical interface corresponding to the welding parameters being controlled can provide visual or auditory indications (e.g., changes in color, animation, etc.) during selection. Once selection is complete, another indication can be provided, for example, to indicate whether the selection was successful, unsuccessful, or that another action is required.

[0073] In some examples, the upper limit indicator 230 may reflect (e.g., as represented in one or more graphical interfaces 202 and 204) the upper limit of one or more parameter settings. Similarly, the lower limit indicator 231 may reflect a lower limit value. The lock indicator 233 is an interface that provides visual information about the lock mode. Further, the lock indicator 233 may be used as a selection device for setting, activating, or deactivating the lock mode.

[0074] When the selected limit is locked, the lock indicator 233 can display specific characteristics to clearly indicate the lock status (e.g., displaying red, brightening, displaying an animation, etc.). When both the lock and the limit are activated, the operating range of the corresponding welding parameter can also display specific characteristics to indicate that the command value range is locked (e.g., displaying red). In some examples, the first welding parameter is voltage, which can operate in the range of 10-45 volts, and the second welding parameter is the wire speed range, which operates in the range of 50-700 inches per minute (IPM). Additionally or alternatively, the full available adjustable range of each welding parameter (e.g., the limit of the welded part output capability) can be displayed on each graphic display with different characteristics (e.g., green, different brightness, etc.). When both the lock and the limit are activated, the actual parameter limits can be displayed near the top and bottom of the permissible parameter adjustment range.

[0075] The graphical user interface 200 includes a first graphical interface 202 representing a first welding parameter (such as voltage). A second graphical interface 204 represents a second welding parameter, such as wire feed speed. For example, a controller (such as control circuitry 112, controller 134, and / or controller 158) may control each graphical interface 202 and 204 in response to selectors 232 and 234.

[0076] Each graphical interface 202 and 204 includes labels 206 and 209 representing output values ​​associated with corresponding welding parameters (e.g., voltage or wire feed speed). During the welding process, each graphical interface 202 and 204 may display values ​​216 and 229 corresponding to the welding system output for a specific welding parameter, such as those measured from one or more sensors. In some examples, values ​​216 and 229 represent estimated or calculated values.

[0077] Each graphical interface 202 and 204 includes a graphical operating range 208, 222, which represents the entire operating range of output values ​​for a specific welding parameter (e.g., based on a specific welding power source). Within each operating range are graphical bands 210, 224 that provide a visual representation of the operating range, defined by upper command values ​​212, 226 and lower command values ​​214, 228 for the specific welding parameter. In some examples, the values ​​of the upper command values ​​212, 226 and the lower command values ​​214, 228 may be displayed.

[0078] Graphical bands 210 and 224 represent ranges of operating values ​​associated with specific material properties and / or welding process parameters (e.g., voltage, current, power, wire feed speed, gas flow rate, pulse rate, workpiece thickness, workpiece material type, electrode type, welding process, travel speed, arc length, arc control, or joint type). In the example of graphical interface 202, graphical band 210 represents a range of command values ​​from low to high voltage values, corresponding to the upper command value 212 and the lower command value 214. Figure 2 In the example, marker 206 (representing approximately 22.5 volts, as shown in central box 216) is located roughly centrally on the pattern strip 210 between the lower limit 214 and the upper limit 212. However, marker 206 (and marker 218) reflects the output value regardless of the selected upper or lower limit. Marker 218, corresponding to the wire feed speed value shown in central box 229, is shown in graphical interface 204. This marker is located slightly to the right of the relative center of the pattern strip 224, thus its position is closer to the upper limit 226 of the pattern strip 224 (e.g., associated with a higher wire feed speed) rather than closer to the lower limit 228 (e.g., associated with a lower wire feed speed).

[0079] As shown in the figure, sections 214 and 228 represent the lower limits of the command values ​​for the corresponding welding parameters. Sections 212 and 226 represent the upper limits of the command values ​​for the corresponding welding parameters. Additionally or alternatively, the individual values ​​can be displayed to provide a numerical indication of the command limits regarding the operating range. Furthermore, within each graphic band, the range of command values ​​can be represented by various colors; for example, lower or cooler values ​​correspond to blue, while higher or hotter values ​​correspond to red.

[0080] In some examples, the GUI displays graphic strips with different characteristics, making it easier to discern which values ​​and / or ranges are associated with upper and / or lower limits. For example, a first characteristic might be used to display the graphic operating range corresponding to the operating range of the respective welding parameters, while portions of that operating range outside the corresponding graphic strip are displayed with a second characteristic. Each graphical interface and / or graphic strip may contain one or more characteristics, such as color, intensity, shape, size, or pattern.

[0081] Once selected, the upper and lower command values ​​for the corresponding welding parameters, along with their corresponding value ranges, can be stored in the memory storage device. These values ​​can be stored in a value list and accessed for future reference and / or analysis.

[0082] In some examples, the control circuitry can control components of the welding system to accept corresponding command value inputs within a specified command value range when a locked mode is activated. Additionally or alternatively, the control circuitry can generate an alarm when the command value falls within a threshold level (e.g., within a certain percentage value and / or numerical value) of the upper or lower limit of the command value for the corresponding welding parameter. In some examples, if the command value is within a threshold or exceeds a target command limit, the controller can control relevant devices (e.g., welding power supply, wire feeder, etc.) to adjust the value of a specific welding parameter to fall within a selected range.

[0083] In some examples, a welding program or sequence can be implemented (e.g., via menu selection from memory and / or a remote control) that provides a scheme for upper and / or lower command values ​​for one or more welding parameters to the control circuitry system, which can be automatically set and presented on a GUI. In some examples, a given welding program can provide upper and / or lower limits for each welding parameter, such that the control circuitry system controls the system output based on the selected welding parameter command limits. Based on a given welding program, one or more applicable operating ranges for welding parameters can be calculated (e.g., based on the upper and lower command values ​​for each welding parameter, as disclosed herein), and the control circuitry system controls the power supply to deliver power based on the calculated operating ranges for the applicable welding parameters (or, in some welding operations, controls the wire feeder to feed the electrode wire).

[0084] In some examples, welding systems 100, 152, and 154 may implement a cooperative mode in which control circuitry 112, controller 134, and / or controller 158 (e.g., via an interface and / or from a programmed welding sequence) receive selections of upper and lower limits for a first welding parameter value and calculate command upper and lower limits for a second welding parameter value based on a predetermined relationship between the first and second welding parameters. In some examples, this predetermined relationship corresponds to a selected welding sequence program or a user-confirmed relationship. The control circuitry / controller may enable or disable the cooperative mode based on the selected welding sequence program (e.g., based on whether a cooperative or non-cooperative welding process is selected).

[0085] In some examples, more or fewer applicable welding parameters are provided from a list of welding parameters and / or can be selected from that list.

[0086] Figure 3 Another example graphical user interface 300 is shown, which can be used for implementation. Figures 1A to 1C Multiple graphical user interfaces 114, 156. In Figure 3 In the example, in addition to or as an alternative to manual selection techniques, one or more menu-driven selection devices may be employed (e.g., via a welding power supply and / or computing platform that provides a user interface from which menus or menu items can be modified and / or selected). For example, the computing platform may be connected to a control device (e.g., a welding power supply and / or auxiliary device) via a wired or wireless connection (e.g., via a network), allowing command limits to be modified and / or selected using menu-enabled devices and / or software. Multiple selection devices are provided for scrolling, selecting, and / or otherwise adjusting menu items and / or values, including selection device 318, memory preset selector 320, lock indicator 333, and / or one or more selectors 332 and 334, to allow a user to scroll through one or more menus and / or menu options provided on a screen or display 314 and select and / or adjust welding parameters and / or their values.

[0087] like Figure 3 As shown, the graphical user interface 300 includes one or more menus, such as an administrator menu 302 and / or a parameter limit menu 304; however, various menus associated with the welding system and / or auxiliary devices may be provided, which are not explicitly shown. In the example shown, a memory icon 322 is selected from the memory preset selector 320, which is represented by icon 323 of the graphical user interface 300.

[0088] The administrator menu 302 may include multiple selection devices, such as parameter limit 306 and / or system lock 308. Selector 332 can be used to scroll through and / or select items listed in the administrator menu 302, such as parameter limit 306. Once selected, parameter limit menu 304 provides a list of parameters that can be used to set limits (e.g., upper and lower limits for voltage, wire feed speed, etc.). Selector 334 can be used to scroll through and / or select items listed in parameter limit menu 304. As shown, selecting the menu item representing the upper limit of wire speed 312 allows adjustment of the value.

[0089] In some examples, the lock indicator 333 can operate as a selection device (e.g., a button, membrane panel switch, touch-enabled screen icon, etc.) allowing it to be used to set, activate, and / or deactivate the lock mode. In some examples, after selection, screen 314 can switch to one or more different screen displays, such as in the example. Figure 2 The GUI 200 is shown.

[0090] Figure 4 A flowchart representing example machine-readable instructions 300 is provided, which can be generated by... Figure 1A Example welding system 100 Figure 1B Example welding system 152, and / or Figure 1C Example welding system 154 executes commands to input and / or receive upper and lower limits of multiple welding parameters. Example instructions 300 may be stored in storage devices(s) 123 and / or memory 124 and executed by processor(s) 120 of control circuitry system 112. The following references... Figures 1A to 2 Example system description instruction 300.

[0091] In block 302, the control circuitry (e.g., control circuitry 112, 152, 154) (e.g., via one or more selection tools, such as...) Figures 1A to 2 The user interface 114, memory 124, and remote computer via network interface 117 receive data corresponding to a range of command values ​​for one of the first or second welding parameters among one or more welding parameters (e.g., voltage, current, power, wire feed speed, gas flow rate, pulse rate, workpiece thickness, workpiece material type, electrode type, welding process, travel speed, arc length, arc control, or joint type). In the example, each range of command values ​​has an upper or lower limit.

[0092] In block 304, the control circuitry generates a first graphical strip on a graphical user interface (GUI) (e.g., GUI 200) representing a range of command values ​​for a first welding parameter. In block 306, the control circuitry generates a second graphical strip representing a range of command values ​​for a second welding parameter.

[0093] In block 308, the control circuitry (e.g., via one or more selection tools) receives a command corresponding to setting, activating, or deactivating a lock mode for the upper or lower limit of the first or second welding parameter.

[0094] In block 310, the control circuitry system may optionally store the limits in memory. In some examples, the limits are specified with identifiers in block 312, such as a list of command value upper and lower limits, which can be accessed, scrolled through, and selected based on the identifiers of the limits, thereby facilitating (e.g., via an interface and / or selection tool) recall and use of the stored limits.

[0095] In block 314, the control circuitry determines whether a selected upper and / or lower limit of the first or second welding parameter is in a locked mode. For example, each upper and lower limit is configured to be activated or deactivated independently.

[0096] In block 316, if these limits are in a locked mode, the control circuitry uses these limits to control the power supply and / or the wire feeder to feed the electrode wire based on the calculated limits and selected welding parameter values. However, if these limits are not in a locked mode, the process returns to block 308 to receive additional commands.

[0097] Figure 5 A flowchart representing example machine-readable instructions 350 is provided, which can be generated by... Figure 1A Example welding system 100 Figure 1B Example welding system 152, and / or Figure 1C Example welding system 154 executes commands to input and / or receive upper and lower limits of multiple welding parameters. Example instructions 300 may be stored in storage devices(s) 123 and / or memory 124 and executed by processor(s) 120 of control circuitry system 112. The following references... Figures 1A to 2 Example system description instruction 300.

[0098] In block 352, the control circuitry (e.g., control circuitry 112, 152, 154) (e.g., via...) Figures 1A to 2One or more selection tools, such as user interface 114, memory 124, or a remote computer via network interface 117, receive data corresponding to a range of command values ​​for one of the first or second welding parameters among one or more welding parameters (e.g., voltage, current, power, wire feed speed, gas flow rate, pulse rate, workpiece thickness, workpiece material type, electrode type, welding process, travel speed, arc length, arc control, or joint type). In the example, each range of command values ​​has an upper or lower limit.

[0099] In block 354, the control circuitry (e.g., via one or more selection tools) receives a command corresponding to setting, activating, or deactivating a lock mode for the upper or lower limit of the first or second welding parameter.

[0100] In box 356, the control circuitry generates a first graphic strip representing a range of command values ​​for the first welding parameter. For example, the control circuitry displays the first characteristic on either the first or second graphic strip.

[0101] In block 358, the control circuitry generates a second graphic band representing the range of command values ​​for the second welding parameter. For example, the control circuitry displays a graphic operating range corresponding to the operating range of the corresponding welding parameter, wherein portions of the graphic operating range outside the corresponding graphic band are displayed with a second characteristic.

[0102] In box 360, the control circuitry determines whether a selected upper and / or lower limit of the first or second welding parameter is in a locked mode. For example, each upper and lower limit is configured to be activated or deactivated independently.

[0103] In block 362, the control circuitry then employs these limits when in locked mode to control the power supply and / or control the wire feeder to feed the electrode wire based on the calculated limits and the selected welding parameter values.

[0104] The given apparatus and / or methods can be implemented in hardware, software, or a combination of hardware and software. The given methods and / or systems can be implemented centrally in at least one computing system, processor, and / or other logic circuitry, or distributed in a distributed manner across several interconnected computing systems, processors, and / or other logic circuitry with different elements spread across them. Any kind of computing system or other device suitable for performing the methods described herein is appropriate. A typical combination of hardware and software may be a processing system having a program or other code integrated into a welding power supply, which, when loaded and executed, controls the welding power supply to perform the methods described herein. Another typical implementation may include application-specific integrated circuits or chips, such as field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), or complex programmable logic devices (CPLDs) and / or system-on-a-chip (SoCs). Some implementations may include a non-transitory machine-readable (e.g., computer-readable) medium (e.g., flash memory, optical disk, magnetic disk, etc.) storing one or more lines of code executable by a machine, thereby enabling the machine to perform the processes described herein. As used herein, the term “non-transitory machine-readable medium” is defined to include all types of machine-readable storage media and excludes propagation signals.

[0105] The control circuit system can identify the welding condition of a given weld and automatically find the optimal values ​​for one or more welding parameters based on that condition. Example control circuit implementations may include an Atmel Mega16 microcontroller, an STM32F407 microcontroller, field-programmable logic circuits, and / or any other control or logic circuit capable of executing instructions to run welding control software. The control circuit can also be implemented as analog circuitry and / or a combination of digital and analog circuitry systems. This document describes some examples with reference to various types of welding machines; however, these examples can be used or modified for use in any type of high-frequency switching power supply.

[0106] Although this method and / or system has been described with reference to certain embodiments, those skilled in the art will understand that various changes can be made and equivalents can be substituted without departing from the scope of this method and / or system. Furthermore, many modifications can be made to adapt specific situations or materials to the teachings of this disclosure without departing from the scope of this disclosure. For example, the block diagrams and / or components of the disclosed examples can be combined, divided, rearranged, and / or otherwise modified. Therefore, this method and / or system is not limited to the specific embodiments disclosed. Instead, this method and / or system will include all embodiments that fall within the scope of the appended claims, both literally and according to the principle of equivalents.

Claims

1. A welding system, comprising: Welded power supply unit; A graphical user interface (GUI) including a graphical interface representing welding parameters; as well as The control circuit system is configured to: Receive data corresponding to a command value range for the welding parameters, wherein the command value range has an upper or lower limit; Generate a graphic band representing a range of command values ​​for the welding parameters, the range being defined by the upper limit and the lower limit, wherein the size of the graphic band is based on the upper limit and the lower limit; The graphic strip is displayed on the graphical user interface; The complete operating range is displayed on the graphical user interface, wherein the complete operating range represents the complete range of values ​​of the welding parameters, and wherein the complete operating range is greater than the difference between the upper limit and the lower limit; and When in locked mode, control the welded power supply to keep the command value within the command value range.

2. The system of claim 1, further comprising a user interface for setting, activating, or deactivating upper or lower limits associated with the graphical strip of the welding parameters.

3. The system of claim 1, further comprising a user interface for setting, activating, or deactivating a lock mode of the welding parameters.

4. The system as claimed in claim 1, wherein, The locking mode corresponds to the upper or lower limit of the command value range corresponding to the welding parameters, wherein each corresponding upper and lower limit value is configured to be activated or deactivated independently.

5. The system as claimed in claim 1, wherein, The control circuit system is further configured as follows: Receive one or more specific welding parameters; and Calculate the upper or lower limit of the welding parameter based on one of the specific welding parameters.

6. The system of claim 1, wherein, The control circuit system is further configured to display a value corresponding to the upper or lower limit of the command value range of the welding parameters.

7. The system of claim 6, wherein, The control circuit system is further configured to generate an alarm when the command value falls within a threshold level of the upper or lower limit of the welding parameters.

8. The system of claim 1, further comprising a user interface for adjusting the range of command values ​​for the welding parameters.

9. The system of claim 8, further comprising a user interface including a selector knob or a touchscreen.

10. The system of claim 1, further comprising a user interface for setting, activating, or deactivating an upper or lower limit associated with a command value range of the welding parameters.

11. A welding system, comprising: Welded power supply unit; A graphical user interface (GUI) comprising a first graphical interface representing a first welding parameter and a second graphical interface representing a second welding parameter; as well as The control circuit system is configured to: Receive data corresponding to an upper or lower limit of a command value, wherein the upper or lower limit of the command value is associated with the first welding parameter or the second welding parameter; Receive commands via user interface to activate or deactivate the upper or lower limit of the command value for the first or second welding parameter in a locking mode. A first pattern strip is generated, which represents the command value range of the first welding parameter between the corresponding command value upper limit and command value lower limit, wherein the shape of the first pattern strip varies based on the corresponding command value upper limit and command value lower limit; Generate a second graphic strip, which represents the range of command values ​​for the second welding parameter between the corresponding upper and lower command value limits; The graphical user interface displays a first complete operating range and a second complete operating range, wherein the first complete operating range represents the complete range value of the first welding parameter, and the second complete operating range represents the complete range value of the second welding parameter, wherein the first complete operating range is greater than the difference between the upper limit and the lower limit of the command value of the first welding parameter, and the second complete operating range is greater than the difference between the upper limit and the lower limit of the command value of the second welding parameter; and When in the locked mode, the welding power supply is controlled to maintain the first command value or the second command value within the corresponding command value range.

12. The system of claim 11, wherein, The control circuit system is further configured as follows: Data corresponding to a first command value and a second command value for each of the first welding parameters and the second welding parameters are received from one or more sensors, respectively. A first marker representing the value of the first command is displayed on the first graphical interface; and A second marker representing the value of the second command is displayed on the second graphical interface.

13. The system of claim 12, wherein, Each graphical interface further includes a numerical value corresponding to the first command value and the second command value.

14. The system of claim 11, wherein, The first welding parameter is voltage and / or arc length.

15. The system of claim 11, wherein, The second welding parameter is the wire feed speed and / or ampere number.

16. The system of claim 11, wherein, The control circuit system is further configured to display a first feature on the first graphic strip or the second graphic strip.

17. The system of claim 16, wherein, Each part of the graphical interface displays a graphical operating range corresponding to the operating range of the corresponding welding parameters, wherein the parts of the graphical operating range outside the corresponding graphical band are displayed with a second characteristic.

18. The system of claim 17, wherein, The first characteristic or the second characteristic includes one of color, brightness, shape, size, or pattern.

19. The system of claim 18, wherein, The first characteristic is a first color, and the second characteristic is a second color.

20. A welding system, comprising: Welded power supply unit; A graphical user interface (GUI) comprising a first graphical interface representing a first welding parameter and a second graphical interface representing a second welding parameter; as well as The control circuit system is configured to: Data corresponding to an upper or lower limit of a command value is received via a menu-driven selection device, the upper or lower limit of which is associated with the first welding parameter or the second welding parameter. The menu-driven selection device receives commands to activate or deactivate a locking mode for the upper or lower limit of the command value of the first or second welding parameter. A first pattern strip is generated, which represents the command value range of the first welding parameter between the corresponding command value upper limit and command value lower limit, wherein the shape of the first pattern strip varies based on the corresponding command value upper limit and command value lower limit; Generate a second graphic strip, which represents the range of command values ​​for the second welding parameter between the corresponding upper and lower command value limits; The graphical user interface displays a first complete operating range and a second complete operating range, wherein the first complete operating range represents the complete range value of the first welding parameter, and the second complete operating range represents the complete range value of the second welding parameter, wherein the first complete operating range is greater than the difference between the upper limit and the lower limit of the command value of the first welding parameter, and the second complete operating range is greater than the difference between the upper limit and the lower limit of the command value of the second welding parameter; and When in the locked mode, the welding power supply is controlled to maintain the first command value or the second command value within the corresponding command value range.

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