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Yokota WU-1 Instruction Manual Download Page 34

 

76-QD7913EN-00Y00-03.doc 

34 

11. 

Troubleshooting 

Before asking repair, carry out the following checks. 

If  the  trouble  cannot  be  solved  by  the  following  actions,  or  if  other  trouble  occurs,  stop  using  this 

product immediately, and be sure to ask us or our qualified (designated) servicing factory via your sales 

outlet or sales agent. 

Trouble 

Probable cause 

Action 

Power LED is not ON, 

though the power 

switch is ON 

The power plug is not inserted into the receptacle. 

Insert the power plug into the receptacle.   

The power supply cord is not connected.

 

Insert the power supply cord into the wireless unit 

firmly.

 

No transition to pairing 

mode 

The power plug is not inserted into the receptacle.    Insert the power plug into the receptacle. 

The power supply cord is not connected.

 

Insert the power supply cord into the wireless unit 

firmly.

 

Pressing time for pairing button is too short.

 

Press the button until the LED of selected TOOL No. 

blinks fast in red.

 

Pairing is not possible 

Battery pack is not installed in the tool. 

Install the battery pack in the tool.   

The power of the wireless unit is not ON.

 

Turn on the power to the wireless unit.

 

The tool does not shift to pairing mode.

 

Press the pairing button of the tool for a while until  

the tool shifts to pairing mode.

 

The wireless unit does not shift to pairing mode.

 

Press the pairing button of the wireless unit for a 

while until the wireless unit shifts to pairing mode.

 

The distance between the tool and the wireless 

unit is long.

 

Get the tool and the wireless unit closer and carry 

out pairing again.

 

There is an obstacle between the tool and the 

wireless unit.

 

Check the surrounding working environment.

 

The tool does not 

operate. 

The wireless unit is not turned on. 

Turn on the wireless unit.   

Pairing with the wireless unit is not established.  

 

Carry out pairing.

 

The motor is overheated.

 

Wait until the motor gets cool and the LED goes off. 

 

The driver is overheated.

 

Wait until the driver gets cool and the LED goes off.

 

The battery pack is over-discharged.

 

The battery voltage falls below a certain level and 

protective function is active.   

Charge the battery pack.   

* Be sure to charge the over-discharged battery 

pack to full level.   

If the charging level is not sufficient, the protective 

function may not be released.   

 

 

 

Summary of Contents for WU-1

Page 1: ... use please read this Instruction Manual carefully and use the product properly after fully understanding the Manual Please be sure to keep this Instruction Manual YOKOTA INDUSTRIAL CO LTD Head Office Factory 5 55 Nishiiwata 3 chome Higashiosaka City 578 0947 Osaka Japan TEL 81 6 6788 1381 FAX 81 6 6781 4519 http www yokota kogyo co jp ...

Page 2: ...RY 8 3 SPECIFICATION 11 4 EACH PART DESCRIPTION 12 5 PAIRING 14 6 SETTING METHOD 16 7 SETTING ITEMS 19 8 JUDGEMENT OF TIGHTENING 29 9 ASSIGNMENT OF OUTPUT RELAY AND INPUT TERMINAL 31 10 MAINTENANCE AND INSPECTION 32 11 TROUBLESHOOTING 34 12 EXTERNAL VIEW 36 ...

Page 3: ...uct or made it dirty immediately contact us or your YOKOTA representative to obtain the Manual or the warning label and then properly retain the Manual or replace the warning label In cases where you transfer or rent this product be sure to attach this Instruction Manual to it Should you have any questions about the product you purchased or this Instruction Manual please contact us or your YOKOTA ...

Page 4: ...e DC power supply engine generator or power transformer Keep away from sources generating large electromagnetic noise such as welder DC brush motor Be sure to use the provided power supply cord Use of other power supply cord may cause malfunction heat generation or fire Be sure to fully insert the power plug Failure to do so may result in electric shock or fire due to heat generation If you do not...

Page 5: ...he power tool carefully Abuse may cause accident and or malfunction Do not give impacts on it by throwing or dropping it Do not place obstacles around the antenna If any obstacle such as metal in particular exists it may interfere with the transmission of radio wave Do not set more than one wireless unit close to each other to pairing mode at the same time Doing so may interfere with normal pairin...

Page 6: ...se the built in battery for specified purpose only Failure to do so may result in incompatibility of terminal configuration etc with the equipment or mismatch of specification or performance It may result in leak heat rupture or ignition of the battery Do not put the built in battery into fire heat disassemble or modify it It may result in leak heat rupture or ignition of the battery Do not revers...

Page 7: ...not expose the built in battery to water etc Doing so may result in heat generation of the battery When disposing of this product ask electric professional to remove the built in battery When disposing of the built in battery insulate the positive and negative poles with an insulating tape Dispose of the main unit and the built in battery in accordance with segregation methods laws and regulations...

Page 8: ...S set as END LS turned ON 7 COUNT NG Output when the tightening bolt number does not reach to the preset number at the input of END LS After COUNT NG when the tightening number reaches to the preset number the output becomes OFF 8 WORK SEL Following work selection can be selected BIT Work can be selected by inputting work a d DATA Work a d can be selected by the input combination of input terminal...

Page 9: ...eed at no load when the tool throttle lever is set to the first step at forward and reverse rotation 21 MOTOR MID SPEED Rotation speed at no load when the tool throttle lever is set to the 2nd stage when right rotation In case of reverse rotation setting of mid speed is not valid only low and high speed is valid 22 MOTOR HIGH SPEED Rotating speed at no load when the Middle to High speed switching ...

Page 10: ... data per one bolt 35 AD Val A mode in which a torque signal applied to the main shaft is displayed 36 A USB connector A USB thumb drive USB flash storage is connected to save tightening data and the set value A USB thumb drive formatted by the FAT32 form with the capacity 8GB or less can be used There is a possibility that the USB thumb drive cannot be used according to the usage condition of the...

Page 11: ...the cable must be less than 10 m LAN 10BaseT 100BaseTX auto detect Note Attach a noise filter accessory of LAN specification sleeve ferrite clamp GRFC 6 manufactured by Kitagawa Kogyo on LAN cable interconnecting cable with HUB etc at the nearest point to the main unit see the photo below The length of the cable must be less than 30 m USB A female connector Connector for DS 1 I2C female connector ...

Page 12: ...rnet connector Connector for Ethernet connection I O terminal block Terminal block for input and output It has 8 points for input and output respectively and 24 V output The terminal block is removable but keep checking the terminal No on the terminal block when attaching and take great care to avoid misconnection Connector for PC 1 Connector for the cable for PC 1 Connector for DS 1 Connector for...

Page 13: ...dicating that mishandling may result in death or serious injury of the user Be sure to read this Manual before use and use the product correctly after you fully understand its contents POWER SERIAL PORT USB PORT LAN DS 1 Connector PC 1 Connector POWER ON POWER OFF ...

Page 14: ...r It beeps and the tool is activated 5 3 Press the pairing button of the wireless unit for a while Press the button until the LED of TOOL1 of the wireless unit lights up in red 5 4 Press the pairing button of the wireless unit for a short period and select the TOOL number to be paired Every time you press the button for a short period the lighting of LED moves 5 5 Press the pairing button of the w...

Page 15: ...nking If the pairing is not done it blinks in yellow repeated blinking 5 7 When the LED of the tool lights in red and goes off the pairing is completed The wireless unit transmits the set value and the tool is ready to operate The LED of selected TOOL number on the wireless unit lights in green 1 If the LED lights in purple pairing is failed Carry out the steps as described in 5 6 2 Even if the ba...

Page 16: ...ting on the browser follow the steps below For setting method by PC 1 see the Instruction Manual of PC 1 During the setting on the browser do not set by PC 1 6 1 Set the IP address of PC In case of Windows XP In case of Windows 7 6 2 Connect this product and PC with LAN cross cable 6 3 Open the Internet Explorer ...

Page 17: ... browser is started Selecting English on right above language is changed to English 6 5 Select TOOL No or WIRELESS UNIT for which the language and set values are read and written The setting screen is opened Ex Tool 1 setting is chosen ENGLISH Ex Wireless unit is chosen ENGLISH ...

Page 18: ...he set value Select read and press EXECUTE Writing the set value After the set value is changed select write and press EXECUTE After you enter the value out of the entry limit range if write is chosen and EXECUTE is pressed the following error message appears and the set value is not changed Error Message ...

Page 19: ...OP RUN STOP AUTO CLEAR Set contents Selection Default Setting AUTO CLEAR ON When the remaining quantity becomes zero it is cleared This setting is valid only when the start condition is FASTN OFF Even when the remaining quantity becomes zero it is not cleared When PASS RESET signal or WORK S signal is entered the remaining quantity is cleared OFF ON OFF END CONDITION Set contents Selection Default...

Page 20: ...ess unit To send output to external device from the wireless unit set WAVE DATA DESTINATION ON see Cl 7 2 3 3 OFF ON OFF SLEEP TIME Set contents Selection Default Setting SLEEP TIME 0 100 min If 0 entered Not sleep If YS e controller board is before Ver 1 01 0 10 min 1 LIMIT WORK Set contents Selection Default Setting the number of work to be used 1 a 2 a b 3 a b c 4 a b c d 1 ID SETTING Set conte...

Page 21: ...ollows Upper limit torque cut torque lower limit torque start torque 0 0 999 0 N m 3 0N m MAX TRQ Set contents Selection Default Setting the upper limit torque Set the value to be as follows Upper limit torque cut torque lower limit torque start torque 0 0 999 0 N m 3 0N m FREERUNNING ANG MIN Set contents Selection Default Setting the lower limit of free running angle Set the value to be as follow...

Page 22: ...ection Default Setting motor middle speed 1500 3000 rpm 2000 MOTOR HIGH SPEED Set contents Selection Default Setting motor high speed 1500 4800 rpm 3000 JUDGE TIME Set contents Selection Default Setting judge time 0 02 0 99 s 0 50 BOLT CO EFFICIENT Set contents Selection Default Setting bolt coefficient 0 60 1 50 1 00 AVERAGE NUM Set contents Selection Default Setting average number 1 6 3 AVERAGE ...

Page 23: ...on Default Setting ON OFF of free running NG stop ON In the event of free running angle NG the tool stops OFF In the event of free running angle NG the tool does not stop OFF ON OFF FINAL ANG NG STOP Set contents Selection Default Setting ON OFF of final angle NG stop ON In the event of final angle NG the tool stop OFF In the event of final angle NG the tool does not stop OFF ON OFF BOLT NUMBER Se...

Page 24: ...ALLOCATION Set contents Selection Default Assign any of NG OK OVER UNDER SLOW Count NG PASS SLOW2 WORKa finish WORKb finish WORKc finish WORKd finish Select WORKa Select WORKb Select WORKc or Select WORKd to output terminal 1 to 8 respectively If 0 is entered nothing is assigned Assignment can be made to TOOL1 TOOL2 TOOL3 and TOOL4 respectively For terminal numbers see Chapter 8 NG 0 8 OK 0 8 OVER...

Page 25: ...9 9 s 0 0 COUNT NG Set contents Selection Default Setting count NG output time If 0 0 is selected outputting is continued 0 0 9 9 s 0 0 OK Set contents Selection Default Setting OK output time If 0 0 is selected outputting is continued 0 0 9 9 s 0 0 OVER Set contents Selection Default Setting OVER output time If 0 0 is selected outputting is continued 0 0 9 9 s 0 0 OTHER RY Set contents Selection ...

Page 26: ...D NON 7 2 3 2 LAN IP ADDRESS Set contents Selection Default Designating IP address After change reboot the wireless unit 000 000 000 000 255 255 255 255 192 168 124 020 SUBNET MASK Set contents Selection Default Entering subnet mask After change reboot the wireless unit 000 000 000 000 255 255 255 255 255 255 255 0 PORT NO Set contents Selection Default Setting port number After change reboot the ...

Page 27: ... Setting ON OFF of serial output of wave data ON Wave data is outputted from the wireless unit to external device OFF Wave data is not outputted from the wireless unit to external device Before setting to ON make sure that WAVE DATA OUTPUT is ON see Cl 7 1 1 1 OFF ON SERIAL OFF ID NO PRINT Set contents Selection Default Setting ON OFF of LAN output of ID number ON ID number is printed OFF ID numbe...

Page 28: ...inted OFF Remaining quantity is not printed OFF ON ON PLUS PRINT Set contents Selection Default Setting ON OFF of pulse print for rundown results ON Tightening pulse is printed OFF Tightening pulse is not printed OFF ON ON DATE PRINT Set contents Selection Default Setting ON OFF of date print for rundown results ON Date is printed OFF Date is not printed OFF ON ON FIXED PRINT Set contents Selectio...

Page 29: ...reases since tightening is proceeded while threads are being stripped Slantwise screwing This is a phenomenon that a bolt is slantwise screwed into female screw because of position gap between the axis of bolt and that of female screw or of angle shift Tightening torque increases without generation of clamp force Over tightening Bolt is tightened with excessive torque Under tightening Bolt is tigh...

Page 30: ...against the set number Angle NG indication of judgment of tightening Free running angle NG N31 Lack in free running angle N32 Excess in free running angle Tightening angle NG N35 Lack in tightening angle N37 Excess in tightening angle Freerunning Angle max Freerunning Angle min Final Angle max Final Angle min ...

Page 31: ...with NPN output add the wire between No 2 24V and No 3 IN COM See the left figure below When connecting with PNP output add the wire between No 3 IN COM and No 12 24V return See the right figure below Terminal block Main unit 163391000 Wire connector 1606740000 1640030000 manufactured by Weidmuller one each used No Pin assignment Pin assignment ピンアサイン No 13 RY1 24V 1 14 RY1 RY2 COM 24V 2 15 RY2 IN...

Page 32: ...or replacement via your sales outlet or sales agent If you replace the battery by yourself ask your electric professional to replace it according to the following Procurement of battery Be sure to procure the battery CR 2032 Panasonic for wireless unit via your sales outlet or sales agent Never modify and use other battery Procedure of battery replacement Turn off the power switch of the wireless ...

Page 33: ...nd the negative is the bottom face Install the cover and tighten the four screws Update the battery replacement period on the bottom face to the year and month of six years after Example Make sure that the power switch is OFF and then connect the power plug to the receptacle Turn on the power switch Set the date by PC 1 again Battery yu 電池 部 BAT CHANGE Apr 2015 BAT CHANGE Apr 2021 ...

Page 34: ...tery pack in the tool The power of the wireless unit is not ON Turn on the power to the wireless unit The tool does not shift to pairing mode Press the pairing button of the tool for a while until the tool shifts to pairing mode The wireless unit does not shift to pairing mode Press the pairing button of the wireless unit for a while until the wireless unit shifts to pairing mode The distance betw...

Page 35: ...ock Carry out connection so that the number marked on the unit matches with the number on the terminal block The setting of output terminals is wrong Carry out setting of output terminals again Cable is broken Replace the cable for external signal DS 1 does not operate The wireless unit is not ON Turn on the wireless unit Cable is not connected Connect the cable Cable is broken Replace the cable P...

Page 36: ...76 QD7913EN 00Y00 03 doc 36 12 External View ...

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