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Amada PULSETIG MAWA-050A, Operation Manual

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MAWA-050A 

5. Welding 

5-1 

5. Welding 

 

 

WARNING

 

 

  Do not measure the voltage by connecting a general voltmeter or oscilloscope to the output 

terminal or between torch and base material.    A high voltage of the start circuit is applied to 
the output terminal.    The measuring person may receive an electric shock or the measuring 
apparatus may be damaged. 

 
 

IMPORTANT 

  Use the welding power supply without exceeding the maximum duty cycle.    (Refer to “1. (3)-3 

Duty cycle graph.”)    Using the welding power supply exceeding the maximum duty cycle will 
result in “E03 Overheat error.” 

 

(1) Pre-Start 

Inspection 

In the following, the pre-start inspection will be described. 
Execute the following inspection items before starting welding daily.  For the details of the 
inspection items, refer to “9. (1) Pre-Start Inspection.” 

 Cable 

inspection 

 Torch 

inspection 

  Argon gas inspection 

 

Summary of Contents for PULSETIG MAWA-050A

Page 1: ...Z09OM1182268 13 OPERATION MANUAL PULSETIG WELDING POWER SUPPLY MAWA 050A Dedicated to Touch Start...

Page 2: ...3 1 Map of residual risks of the welding power supply unit 3 3 2 Map of residual risks of the standard system 4 4 Table of Residual Risks 5 4 1 Installation 5 4 2 Machine operation 7 4 3 Maintenance...

Page 3: ...le 2 26 3 3 External input output signal table 2 27 3 3 1 User input terminals 2 27 3 3 2 User output terminals 2 30 3 4 Input signal connecting method 2 33 3 Operating Unit 1 Front Panel 3 1 4 Explan...

Page 4: ...auto mode is set 6 3 3 Touch Start when the fine weld mode is set 6 5 4 Touch Start when the customer prepared motor head is used 6 7 5 Touch Start at occurrence of LOST 6 9 6 Touch Start air type wel...

Page 5: ...r is a part of the operation manual Accordingly do not operate the machine with an understanding of only this chapter Be sure to read through all the operation manual with a good understanding of its...

Page 6: ...lding protector Measures to be taken in an emergency Prohibition of using the machine for other purposes than welding 1 3 Clothes for operations For executing welding operations put on clothes with lo...

Page 7: ...Welding power supply unit and welding power supply inside Electric shock Input terminal and output terminal Electric shock Input cable and connection cable Electric shock Output cable torch cable and...

Page 8: ...oisoning Suffocation Respiratory trouble Wire supply unit Rolling in Fire Emergency stop button Main power switch Emergency stop button Electrode and torch Electric shock Gas generated from workpiece...

Page 9: ...chine strong arc light will be scattered at welding If this arc light is caught by eyes the eyes may be inflamed Protective measure Install a light shielding partition or light shielding curtain aroun...

Page 10: ...ied at a start of welding If a cable with an insufficient capacity or a cable with a low electric strength is used a fire or electric shock may be caused Protective measure Use the dedicated torch cab...

Page 11: ...the leather protective glasses for welding clothes with long sleeves foot cover and leather apron Do not allow any person thoughtlessly to enter an area around the welding machine and welding operati...

Page 12: ...ation place and the whole factory at all times Install sealed up equipment local exhaust device etc and put on a gas mask or dust proof mask as required 13 WARNING Welding Source of risk Electrode and...

Page 13: ...g jig Contents of risk Electrification is performed neat the welding jig If a person touches such a place an electric shock may occur Protective measure Perform grounding so as not to allow a workpiec...

Page 14: ...rode immediately after welding Contents of risk Immediately after welding the workpiece and electrode are still hot If the welded workpiece is touched with a bare hand or the electrode is touched in t...

Page 15: ...primary power wire on the factory side an electric shock may be caused by touching the charged part by mistake Protective measure Before performing inspection operations stop the electric power suppl...

Page 16: ...ntents of risk If the case is removed and the internal high voltage portion is touched immediately after the power supply is turned on or off this may result in a death Even after the power supply is...

Page 17: ...ource of risk Dust Contents of risk If dust is inhaled the human body may be badly affected Protective measure Classify collected dust according to materials and keep it in a can with a cover so that...

Page 18: ...ON CONNECT GROUNDING WIRE DO NOT OPEN COVER TOUCHING THE INSIDE MAY CAUSE AN ELECTRIC SHOCK CAUTION CAUTION ROTATING DO NOT INSERT A ROD OR OTHER FOREIGN OBJECTS P 00202 003 Pasting place Front side o...

Page 19: ...is provided with a welding current monitoring function to support the OK NG judgment of welding Stabilized welding quality is realized by constant current control Noiseless performance and positionin...

Page 20: ...operating parts such as switches on the front panel are shown below For the function of each part refer to 3 1 Front Panel Main power switch Touch panel display START button with a green LED incorpora...

Page 21: ...power supply input terminal block Input connector D Sub 37 pin female Output connector D Sub 25 pin female Optional input output connector D Sub 25 pin male Current voltage monitor connector D Sub 15...

Page 22: ...n pressure 0 1 0 6 MPa flow rate 0 5 L min or more Any foreign substance water and oil must not come into piping Case protection IP21S Protection class I Safety category Corresponding to category 3 CE...

Page 23: ...or PEAK maximum value RMS effective value Upper limit 0 60 00 A in units of 0 01 A Lower limit Current envelope Upper limit from the reference waveform 0 60 00 A in units of 0 01 A Lower limit from th...

Page 24: ...tion Input output signals Inputs START Welding start Established time 1 100 ms is settable RESET Error reset SCH1 2 4 8 16 32 Condition input PARITY Parity Function ON OFF is settable WELD STOP Weldin...

Page 25: ...ive dust If conductive dust enters in the product this may result in a failure electric shock or fire When using this product in this environment make contact with us 5 WELD1 Cooling WELD2 4000 ms 6 O...

Page 26: ...MAWA 050A 1 Overview 1 8 3 2 Product dimensions 3 2 1 Main unit Unit mm 294 128 169 542 440 360 40 GAS IN R S 4 8 5 O UT PU T I N P UT TORCH EARTH MONITOR HEAD I O POWER INPUT...

Page 27: ...Step down transformer option Unit mm Phase quantity Winding Single phase One winding Primary Secondary voltage 230 V 200 V Secondary current 10 A Capacity 2 kVA Weight 8 2 kg Protection class IP00 Max...

Page 28: ...ing on the set time of the 1st welding the 2nd welding Example computation When weld time of the 1st welding the 2nd welding Tweld 800 ms and weld cycle Tcycle 4000 ms Duty cycle X weld time of the 1s...

Page 29: ...Quantity Operation manual CD ROM AS1185612 OM1182267 OM1182268 1 D Sub connector 1 AS1184321 1 1 37 pin D Sub connector Emergency stop 1 input terminals 16 and 19 Emergency stop 2 input terminals 17...

Page 30: ...9092 3 m MB0909181 3 1159093 4 m MB0909181 4 1159094 5 m MB0909181 5 1159095 Torch with meshes 1 0 2 2 m TA 23SSPC 2000 FL 1177866 TA 150AC 2000 FL 1205697 3 m TA 23SSPC 3000 FL 1177867 TA 150AC 3000...

Page 31: ...ad MH 109TA 00 00 1178607 Foot switch cable 2 4 SK 1202978 1202978 1 Rated voltage U0 U 450 750 V 3 core 2 5 mm2 cable diameter approx 10 mm Welding power supply side crimp style terminal for M4 input...

Page 32: ...mitations shown below This product is classified into Class A of EN55011 and is not intended to be used for a residential area to which power is supplied by low voltage distribution network In such an...

Page 33: ...re there is a high noise generating source in the neighborhood Where chemicals are handled Where it is very dusty Where there are lots of vibrations and shocks Install the welding power supply in a so...

Page 34: ...ed below Take a serious view of the following contents Installing conditions Ambient temperature 5 40 C Maximum humidity 85 or less without condensation Maximum altitude 1000 m or lower Pollution leve...

Page 35: ...fire There is a solenoid valve inside of MAWA 050A to turn on off the argon gas At least 0 1 MPa of pressure is required However the maximum allowable pressure is 0 6 MPa Set the flow rate to 0 5 lite...

Page 36: ...a Flow rate 0 5 L min or more Reducing valve and flow meter Reference Manufacturer YUTAKA Co Ltd Product name 2 step pressure adjuster with a flow meter Model FR II S P Tube Recommended item Manufactu...

Page 37: ...cable Put a cable cover on the contact portion with the moving part or human body so as not to damage the cable If a cable with a deteriorated or damaged cover is directly touched or if the metal par...

Page 38: ...following procedure 1 Turn off the source power supply on the factory side 2 Pass the input cable through the cable gland lower of the terminal cover 3 Connect each of the round terminals of 2 power l...

Page 39: ...with the moving part or human body so as not to damage the torch cable If a cable with a deteriorated or damaged cover is directly touched or if the metal part with which the cable is brought into con...

Page 40: ...onnections 2 8 2 Fix the end of the grounding cable to the grounding terminal with the attached bolts and nuts Remarks When tightening the nut perform it so that the grounding cable may face toward th...

Page 41: ...the moving part or human body so as not to damage the torch cable If a cable with a deteriorated or damaged cover is directly touched or if the metal part with which the cable is brought into contact...

Page 42: ...to the torch terminal 3 Install the terminal cover on the rear panel Put the claws on the left and right side into the grooves of the rear panel Fix the terminal cover with the attached screws 4 Loose...

Page 43: ...from the torch we prepare a torch with a meshed nozzle and a nozzle ring The nozzle ring is attached to our torch Install the nozzle ring on the nozzle and connect the wire to the PE terminal of MAWA...

Page 44: ...as cylinder the gas cylinder may be exploded IMPORTANT Use dry gas and connect the tube so as not to cause a foreign substance water and oil to flow into the piping In the following how to connect the...

Page 45: ...outside and control of external devices For connecting to external input output devices refer to 2 3 Interface Input connector D Sub 37 pin female Used for control from the outside Output connector D...

Page 46: ...cation device will be described There is a connector for external communication on the rear panel This connector is used to set conditions and read data from PC For the connection with the external co...

Page 47: ...g for H CY VLV output signals is 24 V DC 70 mA or less Connection when the Torch drive type is set to MOTOR touch start head MH TL01A 13 17 16 12 10 14 6 18 21 22 11 16 M READY H HEAD UP H STOP H STOP...

Page 48: ...2 9 Connecting the step down transformer option Connect to switchboard Step down transformer T 114378 MC MAWA 050A Input power cable Transformer input cable 0 200V G display side 0 230V G display sid...

Page 49: ...n 2 5 Condition 4 6 Condition 8 7 Condition 16 8 Condition 32 9 Condition 64 Refer to SCHEDULE of 6 8 Schedule Changeover 4 SCH2 5 SCH4 6 SCH8 7 SCH16 8 SCH32 9 SCH64 10 PARITY Parity input terminal A...

Page 50: ...V Power supply for the gas flow rate sensor 24 V 35 EXT COM Input terminal common 36 INT 24V 24 V output 37 COM Input terminal common 1 For resetting emergency stop turn off both of EM1 and EM2 and th...

Page 51: ...eared by Error Reset at occurrence of a welding power supply error such as overheating and overcurrent 6 OUT_COM Common terminal of the output terminals 1 5 and 7 11 7 OUT5 User output terminal For ea...

Page 52: ...tallation and Connections 2 20 Terminal No Terminal name Explanation 18 WIRE START Brazing wire supply start signal output terminal 1 For the synchronizing output timing refer to timing charts in 6 1...

Page 53: ...terminal 7 H ERROR Motor controller error signal input terminal 8 H COM Common terminal of the input terminals 1 and 3 7 23 EXT_COM2 Common terminal of the input terminal Output 9 H OUT_COM Common te...

Page 54: ...0V 0 V output terminal 25 24V 24 V output terminal 1 For the timing of the main welding start input H ST2 from the motor controller refer to 6 1 2 3 and 4 in the timing chart of the touch start Only i...

Page 55: ...ed parts Connector HD 15SP MISUMI Corporation Case MDA 9H M2 6 MISUMI Corporation Current voltage monitor Terminal No Terminal name Explanation 1 I Welding current analog signal 1 2 I COM Welding curr...

Page 56: ...CH32 9 SCH64 10 PARITY 11 PURGE 12 RESET 22 IN1 23 IN2 16 EM1 17 EM2 20 TORCH SELECT 21 WELD ON 24 0V Flow sensor 25 24V Flow sensor 18 EM2_COM EM2_COM EM2 EM1 IN2 IN1 TORCH RESET PURGE PARITY SCH64 S...

Page 57: ...6 18 WIRE START 12 SYNC OUT 9 OUT3 1 GOOD 2 NG 4 E STOP 7 OUT5 6 OUT_COM 3 END 8 OUT4 14 OUT_COM 5 ERROR 13 SYNC OUT_COM GOOD 17 WIRE START_COM 11 10 9 8 7 5 4 3 2 1 16 15 14 6 18 17 12 13 22 23 24 25...

Page 58: ...12 H RESET 14 H HEAD UP 22 H MODE 16 H STOP 17 H STOP_COM 20 H CY VLV 21 H CY VLV_COM 15 H OUT_COM 23 EXT_COM2 24 0V 25 INT 24V 13 M READY H COM H ST1 H ST2 H READY GAS MID POINT H ERROR H OUT_COM H O...

Page 59: ...e torch of the servo motor type welding head is moved to the start point by inputting H HEAD UP Caution When setting 01 GAS FLOW for the user input with the optional digital flow meter FSM2 NAF100 S06...

Page 60: ...etection lower limit Detection response time Timing chart when the argon gas flowrate is abnormal 1 When the pre flow time PRE 300 ms an error is detected at the welding start Since an error is detect...

Page 61: ...ding start Since an error is detected 10 ms before the welding start pre flow time completed an arc discharge does not occur ON OFF PRE 10ms Detection upper limit Detection lower limit Argon gas flowr...

Page 62: ...r the 02 NG signal setting time 09 WEL1 LOWER VOLTAGE When the measured voltage value of the first welding is lower than the lower limit of judgment voltage value this signal is output for the 02 NG s...

Page 63: ...asured voltage waveform of the second welding is lower than the lower limit of the judgment voltage waveform this signal is output for the 02 NG signal setting time 26 WEL2 UPPER ENVELOPE VLT When the...

Page 64: ...eration is performed 3 Can be output from the output connector of this product by setting each signal of the optional touch start head controller to user output 4 Applied by a combination of the foot...

Page 65: ...WELD STOP EM1 EM2 IN2 START 16 EM1 17 EM2 23 IN2 18 EM2_COM 19 EM1_COM 37 COM 35 EXT COM 1 WELD STOP 2 START Internal side External side For connecting to the NPN open collector output when the inter...

Page 66: ...1_COM 37 COM 35 EXT COM EM1 EM2 IN2 EM1_COM EM2_COM EXT COM START WELD STOP 1 WELD STOP 2 START Internal side External side For connecting to the NPN open collector output device when the external pow...

Page 67: ...ches are operated at the same time this will result in a failure Operate switches on touch panel display about once in a second If operated a plurality of times in a second this will result in a malfu...

Page 68: ...when welding is ready since the welding starts by the initial current start signal H ST1 of the option input output connector Refer to 2 3 1 3 Option input output connector RESET button with an orang...

Page 69: ...k screen 15 Count setting screen 5 Basic setting screen 6 Switch select screen 8 Ext I O setting screen 9 Welding condition setting screen 10 Schedule setting screen 7 Initialize memory screen 11 Moni...

Page 70: ...to another screen or is pressed and the screen is changed over If the power supply is turned off before the screen is changed over the input set value becomes invalid To go to a screen with the mark o...

Page 71: ...or screen Used to go to the Monitor screen b Basic setting Used to go to the Basic setting screen c Welding condition set Used to go to the Welding condition setting screen d Monitor select Used to go...

Page 72: ...ower supply is turned on the Password input screen will not be displayed in going to the screen of after that It is possible to go to the screen without the password If Enter is pressed or the power s...

Page 73: ...ights in red When the initial current cannot be detected or a short circuit contact between a workpiece and the electrode cannot be recognized the judgment is made as a misfire At the initial power ON...

Page 74: ...WELD1 welding range The WELD1 waveform is displayed in the center of the graph in a magnified form WELD2 The waveform display can be selected within the WELD2 welding range The WELD2 waveform is disp...

Page 75: ...e weld time including the initial current section and cooling section is displayed 2 CURR RANGE A The display range of current waveform can be changed It can be selected among 60 A 30 A and 12 A 3 VOL...

Page 76: ...to 4 11 c Slope time The initial current time and the cooling time are displayed at the reference waveform set on the Welding condition setting screen but the initial current time and the cooling tim...

Page 77: ...peed and moving distance of the torch head so that the torch head can move to the main welding start position within 500 ms If the main welding start signal H ST2 is not input from the torch head cont...

Page 78: ...result judgment is displayed Normal GOOD Lights in green Error NG Lights in red When the monitor value is out of the upper lower limit judgment range the judgment result in NG Misfire LOST Lights in r...

Page 79: ...The displayed value is PEAK maximum value or RMS effective value For selecting a display value refer to 4 6 d Measurement voltage select If the upper lower limit judgment of the monitor value of the w...

Page 80: ...w solid line Upper lower limit waveform Yellow dotted line Voltage waveform Reference waveform Red solid line Upper lower limit waveform Red dotted line Caution The upper lower limit waveform dotted l...

Page 81: ...value and the judgment result is likely to be NG when the upper limit value of the current is low To make it GOOD set it to the welding condition with slope or set the upper limit value of the curren...

Page 82: ...the reference waveform This is why the set time and the monitor time of the initial current time are different t Env Wave regist Resistance welding is performed on the Envelope waveform check screen R...

Page 83: ...ding power supplies are used enter 1 for the first unit 2 for the second unit and 3 for the third unit respectively These are used for recognition of device This device No can be set up to 31 Initial...

Page 84: ...ication at 19600 bps 38400 Performs communication at 38400 bps Initial value 9600 i Internal resistance It can be selected whether the resistor incorporated in MAWA 050A is used as a terminator for ex...

Page 85: ...Refer to PARITY in 2 3 1 1 Input connector Initial value OFF c SCH Torch select by I O This can select whether the condition No and torch changeover by external I O is made effective or not At ON set...

Page 86: ...display switch in 4 3 o Initial value OFF i Fine Weld Mode This can select whether the fine weld mode is used or not At ON the fine weld mode is selected At OFF the auto mode is selected The fine weld...

Page 87: ...gnal output time After the end of all the welding sequence the END signal output time can be set The setting range is 1 200 ms Initial value 200 ms d START signal input delay time Sets the time to det...

Page 88: ...CH1 and TORCH2 are changed the START signal is not accepted The setting range is 1 200 ms Initial value 20 ms g Op IO H END signal output time The output time of the H END output signal can be set The...

Page 89: ...d by pressing CLEAR in the Memory clear item on the Switch select screen 2 2 Yes Executes initialization Displays the Initializing memory screen during initialization No Goes back to the Switch settin...

Page 90: ...ER VOLTAGE 20 WEL2 UPPER VOLTAGE 21 WEL2 LOWER TIME 22 WEL2 UPPER TIME 23 WEL2 LOWER ENVELOPE CUR 24 WEL2 UPPER ENVELOPE CUR 25 WEL2 LOWER ENVELOPE VLT 26 WEL2 UPPER ENVELOPE VLT 27 SYNC OUT 28 WIRE S...

Page 91: ...tor himself and SIMPLE SETTING screen in which conditions can be input easily FULL SETTING screen 1 Settable time is WELD1 section set time COL set time WELD2 section set time 4000 ms The total set ti...

Page 92: ...urrent Initial value 5 00 A UL2 Up slope final current Initial value 5 00 A PL2 Pulse current Initial value 5 00 A DF2 Down slope initial current Initial value 5 00 A DL2 Down slope final current Init...

Page 93: ...LD2 cannot be operated correctly Only WELD2 setting cannot be performed E11 Weld parameter error will occur Remarks If the value less than the effective digits for the time set value is input it is ro...

Page 94: ...H select terminals of the external I O Refer to 6 8 Schedule Changeover and 10 Condition No and SCH Select Terminals i Current Each peak current value at welding cab be set independently The settable...

Page 95: ...condition No is displayed b Weld1 welding pulse modulation ON OFF Select whether to apply the pulse modulation to the first welding current Initial value OFF Waveform sample at pulse modulation OFF Wa...

Page 96: ...nd 10 0 50 0 A in units of 0 1 A 1 Initial value 5 00 A 1 For welding very small workpieces only FST and UF1 of WELD1 can be set from 1 00 A of the minimum current set value However the initial value...

Page 97: ...own slope section of the second welding Initial value OFF o Weld2 base current A In the effective section of pulse modulation modulation is performed by using the set value as the minimum current valu...

Page 98: ...hold value of upper lower limit judgment can be set individually for WELD1 and WELD2 on the Upper lower limit set screen WELD1 WELD2 An upper lower limit judgment is performed in both ranges of WELD1...

Page 99: ...oth acquisition of monitor value and upper lower limit judgment are performed only in the pulse current section WEL Initial value Exclude d Limit judgment output Set the item to make an upper lower li...

Page 100: ...welding WELD2 can be set The input range is 0 00 60 00 A Initial value Upper Limit 60 00 Lower Limit 0 00 A c Voltage Regarding the upper limit value and lower limit value to be used for upper lower...

Page 101: ...Copy to Enter the condition No to copy the data of the condition No input in Copy from Copy source No Specify the copying range in the left right input field Example 1 To perform copying to condition...

Page 102: ...elding data is displayed Items of WELD1 WELD2 data display area FST Initial current initial current time UF1 UF2 Up slope initial current up slope time UL1 UL2 Up slope final current PL1 PL2 Pulse cur...

Page 103: ...cess screen of is displayed After the copy is normally terminated the SCH copy screen of appears and the copy completion notice Copy finish is displayed k No No condition copy is performed and the SCH...

Page 104: ...atus is displayed Terminal 1 W STOP Terminal 9 SCH64 Terminal 2 START Terminal 10 PARITY Terminal 3 SCH1 Terminal 11 PURGE Terminal 4 SCH2 Terminal 12 RESET Terminal 5 SCH4 Terminal 13 EM RESET Termin...

Page 105: ...or type welding head or torch selector is used e Option input terminal state The input signal status is displayed Terminal 1 H ST1 Terminal 3 H READY Terminal 4 GAS Terminal 5 MID POINT Terminal 6 H S...

Page 106: ...erating switch Used to turn on off output signals For details refer to c Output signal operating switch of the I O check screen of h Screen return switch The External I O check screen reappears i Scre...

Page 107: ...c Work count preset Work count Enabled when a value is input in Work count preset When Weld count value is equal to WELD count preset value the count is increased 1 and is displayed as Work count The...

Page 108: ...l be deleted in order for updating a SCH The condition No at occurrence of an error is displayed If no error is found 0 is displayed b MESSAGE The error code and error message of each error that occur...

Page 109: ...invalidated b Regist The input password can be registered by pressing this switch after entering the password If the operator goes to a screen without pressing this switch the entered password will b...

Page 110: ...g the welding current to flow it can be set that the welding current output is turned on off a PURGE ON OFF The gas can be turned on and off by manual operation In 15 seconds after pressing this switc...

Page 111: ...S Measurement voltage select RMS Enable START switch ON Internal Gas Flow ON High speed SCH change No Wave OFF Fine Weld Mode OFF Torch drive type MOTOR GOOD NG signal output time 200 ms END signal ou...

Page 112: ...L2 current value 5 00 A DF2 current value 5 00 A DL2 current value 5 00 A PRE time 0 ms FST time 0 0 ms UPS1 time 0 0 ms WEL1 time 0 0 ms DWS1 time 0 0 ms COL time 0 ms UPS2 time 0 0 ms WEL2 time 0 0...

Page 113: ...mit value WELD1 60 00 A WELD2 60 00 A Lower limit value WELD1 0 00 A WELD2 0 00 A Voltage value Upper limit value WELD1 50 00 V WELD2 50 00 V Lower limit value WELD1 0 00 V WELD2 0 00 V Time Upper lim...

Page 114: ...apparatus may be damaged IMPORTANT Use the welding power supply without exceeding the maximum duty cycle Refer to 1 3 3 Duty cycle graph Using the welding power supply exceeding the maximum duty cycle...

Page 115: ...pply on the factory side 2 Turn ON to the I side the Main power switch on the front panel The start up screen is displayed and then the Monitor screen is displayed on the touch panel display Monitor s...

Page 116: ...the Basic setting screen Device No Communication type and communication speed Display language selection Screen brightness Displaying the Basic setting screen 1 Press MENU in the upper right part of...

Page 117: ...Remarks The Switch select screen consists of 2 pages Displaying the Switch select screen 1 Press on the Basic setting screen The Switch select screen 1 2 is displayed For the details of the Switch sel...

Page 118: ...SIMPLE SETTING screen A small number of setting items can be set easily Displaying the Welding condition setting screen 1 Press MENU in the upper right part of the screen The Menu screen is displayed...

Page 119: ...ng screen consists of 2 pages Schedule setting screen 1 2 The first welding pulse modulation can be set Schedule setting screen 2 2 The second welding pulse modulation can be set Displaying the Schedu...

Page 120: ...into the welding conditions of different condition Nos Copy the welding conditions on the SCH copy screen Displaying the SCH copy screen 1 Press MENU in the upper right of the screen The Menu screen i...

Page 121: ...r lower limit value Set the upper lower limit judging range and target items for the OK NG judgment on the Monitor select screen Displaying the Monitor select screen 1 Press MENU in the upper right pa...

Page 122: ...he Upper lower limit set screen Remarks For the upper lower limit value setting to be used for OK NG judgment using the envelope waveform refer to 4 4 Envelope setting screen Displaying the Upper lowe...

Page 123: ...Normal mode FST ms 0 Set time At the end of the initial current time after the head reaches the main welding position The welding setting waveform and the monitor waveform are displayed in the same t...

Page 124: ...p part Argon gas Argon gas Head is a standby state at the start position Start signal ON Head moves to workpiece surface from the standby position Pre flow Argon gas output ON After electrode and work...

Page 125: ...oint MN welding Start of moving to weld point MN welding Start of moving to weld point INIT CUR MAWA 050A touch start Gas output signal rcvd Main welding start signal rcvd INIT CUR start time rcvd HEA...

Page 126: ...touch sensor OFF Electrode touch sensor ON Torch follow up part Argon gas Argon gas Head is a standby state at the start position Start signal ON Head moves to workpiece surface from the standby posi...

Page 127: ...t start signal ST1 ON operation and control item operation and control flow interface process End of moving to mid point ST point End of moving to weld point INIT CUR End of moving to weld point MN we...

Page 128: ...trode touch sensor ON Torch follow up part Argon gas After flow argon gas Head is a standby state at the start position Start signal ON Head moves to workpiece surface from the standby position Pre fl...

Page 129: ...1 ON operation and control item operation and control flow interface process End of moving to mid point ST point End of moving to weld point INIT CUR End of moving to weld point MN welding Start of mo...

Page 130: ...conditions Remarks If the air type welding head is used when the touch start is selected the pre flow time is used as the head go down time Only when the Gas flow control item on the Switch select sc...

Page 131: ...e as follows When an error occurs During the welding sequence When the START input operation panel and external input is closed The WELD STOP of the external input is closed The SCH signal is not inpu...

Page 132: ...m check screen This screen permits checking the envelope waveform created by the welding waveform and upper lower limit value Envelope setting screen This screen permits selecting the reference wavefo...

Page 133: ...hutting off the Power Supply Shutting off the power supply will be described below 1 Set the Main power switch on the front panel to OFF O side The power supply is shut off 2 Turn off the source power...

Page 134: ...nal 1ST Start moving to mid point Start signal 2ND Start moving to weld point Start point Mid point Weld point MN welding Weld point INIT current H READY input Operation ready H ST1 input Initial curr...

Page 135: ...nitial current time setting becomes 180 ms about 100 ms of head controller processing time about 50 ms of head moving time about 30 ms of standby time 7 Set value of END signal output time Refer to 4...

Page 136: ...out 30 ms for the second or later change 4 After the initial current start signal H ST1 is input the initial current is started after the lapse of the pre flow set time Touch start head Start signal 1...

Page 137: ...00 ms when the High speed SCH change No Wave in 4 6 h is OFF and about 100 ms when it is ON However when the END signal output time or the GOOD NG signal output time is 100 ms or longer it is made the...

Page 138: ...e or about 30 ms for the second or later change 4 After the initial current start signal H ST1 is input the initial current is started after the lapse of the pre flow set time Touch start head Start s...

Page 139: ...100 ms when it is ON However when the END signal output time or the GOOD NG signal output time is 100 ms or longer it is made the same as OFF of the longer set time Also it takes about 1700 ms when t...

Page 140: ...END signal is turned on turn off the GAS signal or the PURGE signal to turn off the solenoid valve for gas After the head is moved to weld point initial current turn on the initial current start signa...

Page 141: ...eating time About 60 ms for the first condition change or about 30 ms for the second or later change 4 After the initial current start signal H ST1 is input the initial current is started after the la...

Page 142: ...e or about 30 ms for the second or later change 4 After the initial current start signal H ST1 is input the initial current is started after the lapse of the pre flow set time Touch start head Start s...

Page 143: ...time 8 Set value of GOOD NG signal output time Refer to 4 6 b GOOD NG signal output time 9 It becomes about 1300 ms when the High speed SCH change No Wave in 4 6 h is OFF and about 100 ms when it is...

Page 144: ...FF of the longer set time Also it takes about 1700 ms when the current flows when ENVELOPE in the Limit output judgment on the Monitor select screen is ON Refer to ENVELOPE of 4 11 d Limit judgment ou...

Page 145: ...reen TORCH No is decided according to the TORCH input status after the lapse of the set time of TORCH change delay time In the example shown in the above figure the case of changing the torch in the s...

Page 146: ...mum weld time 1 ms and about 340 ms at the maximum weld time 4 s From these contents the time from the end of SCH signal operation to READY signal ON becomes SCH changeover delay time 1 200 ms Welding...

Page 147: ...G signal input is not accepted The H ORG output signal is continuously output until the H READY signal is received 2 After MAWA 050A receives an H HEAD UP input signal it outputs an H HEAD UP output s...

Page 148: ...d off b contact The STOP signal is output after the emergency stop status is cleared 3 When MAWA 050A receives the RESET input signal it outputs the H RESET output signal The H RESET signal is output...

Page 149: ...6 16 10 Condition No and SCH Select Terminals Closed Blank Open Signal name SCH No SCH1 SCH2 SCH4 SCH8 SCH16 SCH32 SCH64 PARITY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27...

Page 150: ...MAWA 050A 6 Timing Chart 6 17 Signal name SCH No SCH1 SCH2 SCH4 SCH8 SCH16 SCH32 SCH64 PARITY 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70...

Page 151: ...WA 050A 6 Timing Chart 6 18 Signal name SCH No SCH1 SCH2 SCH4 SCH8 SCH16 SCH32 SCH64 PARITY 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 1...

Page 152: ...17 118 119 120 121 122 123 124 125 126 127 Input signal ON A fault due to wire breakage of the condition select signal line can be detected by parity input signal Set this signal so that the total of...

Page 153: ...Communication speed Select one of the following speeds on the Basic setting screen 9600 14400 19200 and 38400 bps Data format Start bit 1 Data bit 8 Stop bit 1 Parity Even number Character code ASCII...

Page 154: ...tion mode perform setting so that multiple units may not transmit data at the same time Otherwise data collision will be caused to the communication line resulting in an abnormal operation The RS 232C...

Page 155: ...MAWA 050A 7 External Communication Function 7 3 Caution To avoid malfunction caused by noise keep the USB RS485 conversion adapter more than 1 m apart from the welding power supply and torch...

Page 156: ...A Device No nn 01 31 B Condition No nnn 001 127 C Command No nnn Fixed to S10 D Torch No nn Fixed to 01 E Welding result nn 01 GOOD 02 NG 03 LOST F WELD1 current nnnn n 000 0 999 9 A G WELD1 voltage n...

Page 157: ...1 Error code 2 Fixed 2 digits of 01 28 F 1 Error code 3 Fixed 2 digits of 01 28 G 1 Error code 4 Fixed 2 digits of 01 28 H 1 Error code 5 Fixed 2 digits of 01 28 I 1 Error code 6 Fixed 2 digits of 01...

Page 158: ...ding is used for SH1 SH2 and SH3 2 Command No 07 is used fixedly for CC1 and CC2 3 When there is no error data the reply data is E00 Error reset Code Device No W Condition No S Command No Data Example...

Page 159: ...de Device No W Condition No S Command No Data Example The contents of data specified by Command 01 of Condition No 008 of the specified device No 01 are saved for one condition Host side I D 1 I D 2 W...

Page 160: ...urrent 11 WELD2 up slope final current 12 WELD2 main welding current 13 WELD2 down slope initial current 14 WELD2 down slope final current 15 Pre flow time nnnn 0000 9999 ms 16 Initial current time nn...

Page 161: ...time upper limit nnnn 0000 5000 ms 6 WELD1 weld time lower limit nnnn 7 WELD2 current value upper limit nn nn 00 00 60 00 A 8 WELD2 current value lower limit nn nn 9 WELD2 voltage value upper limit nn...

Page 162: ...it nn nn 00 00 60 00 A 7 Envelope WELD2 current value lower limit nn nn 8 Envelope WELD2 voltage value upper limit nn nn 00 00 50 00 V 9 Envelope WELD2 voltage value lower limit nn nn Remarks Data of...

Page 163: ...1 Japanese 2 English 3 Korean 4 Chinese simplified characters 5 German 10 Panel brightness adjustment nn 01 15 15 is the brightest 11 NG judgment error n 0 OFF 1 ON 12 Start parity error ON OFF n 0 OF...

Page 164: ...L2 LOWER CURRENT 18 WEL2 UPPER CURRENT 19 WEL2 LOWER VOLTAGE 20 WEL2 UPPER VOLTAGE 21 WEL2 LOWER TIME 22 WEL2 UPPER TIME 23 WEL2 LOWER ENVELOPE CUR 24 WEL2 UPPER ENVELOPE CUR 25 WEL2 LOWER ENVELOPE VL...

Page 165: ...2 nn 01 28 3 Error code 3 nn 01 28 4 Error code 4 nn 01 28 5 Error code 5 nn 01 28 6 Error code 6 nn 01 28 7 Error code 7 nn 01 28 8 Error code 8 nn 01 28 Up to 8 error codes can be used When the num...

Page 166: ...02 NG 03 LOST 3 WELD1 current nn nn 00 00 99 00 A 4 WELD1 voltage nn nn 00 00 99 99 V 5 WELD1 time nnnn n 0000 0 9999 0 ms 6 WELD2 current nn nn 00 00 99 00 A 7 WELD2 voltage nn nn 00 00 99 99 V 8 WEL...

Page 167: ...lding conditions in the auto mode including the fine weld mode Interval of acquisition and Number of waveform data also vary Command 12 voltage waveform data check Common data Condition No 000 Resista...

Page 168: ...s may be different depending on the set time of WELD1 WELD2 Caution Since the weld time varies according to the head moving time even under the same welding conditions in the auto mode including the f...

Page 169: ...s may be different depending on the set time of WELD1 WELD2 Caution Since the weld time varies according to the head moving time even under the same welding conditions in the auto mode including the f...

Page 170: ...an be made from the error status If the cause of the error is not removed the Error screen will be displayed again If an error display is disabled because communication with the touch panel display ca...

Page 171: ...lower limit setting of each monitor was out of the range Immediately after welding Check the welding material equipment status each condition etc When WELD the on the Monitor screen is ON or the WELD...

Page 172: ...ime limit error The time monitor value was out of the set allowable range Immediately after welding Execute maintenance for the electrode and workpieces This is displayed when E05 Weld error occurs E1...

Page 173: ...If the status cannot be improved there is a possibility of any component failure Make contact with us E24 Charge time error The charging time setting was faulty At an operation before welding If this...

Page 174: ...occurred when the electrode was detached from the workpiece at the time of initial current or at the time of occurrence of the creeping up 2 By changing the flow rate of argon gas to approx 0 5 to 1 0...

Page 175: ...odes does not proceed Therefore an arc discharge is performed with the creeping up of an arc on the side surface of electrode where an oxide exists When an oxide on the electrode surface is used for a...

Page 176: ...the damaged cable Torch cable Grounding cable Input cable Other connection cables Input output signal cable Data communication cable 1 2 Torch inspection Check the end of the torch for abrasion If it...

Page 177: ...is displayed 3 Press PURGE OFF on the Maintenance screen PURGE ON is displayed and argon gas flows for about 15 seconds After the argon gas flow is stopped PURGE OFF is automatically displayed again I...

Page 178: ...r for dirt once a month If the cooling fan filter is dirty clean it according to the following procedure 1 Remove the hooks at 4 positions of the retainer and then remove the retainer and media from t...

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