JUKI SC-922 Instruction Manual
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JUKI SC-922 Instruction Manual

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See also: Engineer's Manual
ENGLISH
SC-922
INStruCtIoN MaNuaL

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Summary of Contents for JUKI SC-922

  • Page 1 ENGLISH SC-922 INStruCtIoN MaNuaL...

  • Page 2: Table Of Contents

    (2) Overlapped sttchng pattern ......................19 4. one-touch setting ..........................20 5. Production support function ......................22 6. Setting of functions of SC-922 ......................25 7. Function setting list .......................... 27 8. Detailed explanation of selection of functions ................33 9.

  • Page 3: Specifications

    It differs by the selected machine head. @. SET-UP The SC-922 can be used with the direct-motor type machine head as a stand-alone control box. It can also be used with the belt-driven type machine head by installing on the motor unit.

  • Page 4: Installing The Motor Unit

    2. Installing the motor unit To use the SC-922 with the belt-drive type machine head, install the control box on the motor unit according to the followng nstructon. Install the motor unit on the table with the fitting bolt asm. suppled wth the unt as accessores.

  • Page 5: Installing The Belt

    4. Installing the belt 1) The belt dstance, between sewng machne pul- ley and motor pulley, must be parallel. 2) The belt tenson should be adjusted by turnng the tenson adjust nuts 1 to change heght of the 15mm (9.8N) motor, so that the belt snks down by about 15 mm (9.8N) when t s depressed by band at the center of the belt span.

  • Page 6: Installation And Adjustment For The Protecting Pin And The Belt Slip-Off Preventing Bracket

    6. Installation and adjustment for the protecting pin and the belt slip-off preventing bracket WarNING : to protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. 1) Attachng hole for the protectng pn To attach protectng pn 1 , select ether attachng hole A or attachng hole B n the motor pulley...

  • Page 7: Connecting The Cords

    • To prevent personal injury caused by maloperation, be sure to lock the connector with lock. • As for the details of handling respective devices, read carefully the Instruction Manuals supplied with the devices before handling the devices. Following connectors are prepared on the SC-922. Connect the connectors coming from the machine head to the corresponding places so as to fit the devices mounted on the machine head. 1 CN30 Motor signal connector...
  • Page 8 1) Pass cords 1 of the thread trmmer solenod, 2) Loosen screw B n cover 3 wth a screwdrver to reverse feed solenod and detector cords 2 open the cover. through table hole A and route them under the For the drect-motor type machne head, proceed table.
  • Page 9 [Connecting the connector for the operation panel] 5) The connector for the operaton panel s provded. Payng attenton to the orentaton of the connec- tor !2 , connect it to connector (CN38) !3 located on the crcut board. After connectng, securely lock the connector.
  • Page 10 8) Close cover 3 and fix the cover by tightening screw B wth a screwdrver. (Caution) take care not to allow the cord to be caught under cover 3 . 9) Connect connector 4P !7 to connector !8 located on the side of the box. 10) Connect motor output cord !9 of the power swtch to connector @0 .
  • Page 11 By making the following two changes, the SC-922 can be used wth three dfferent power supples, .e., sngle- phase 100 - 120 V, sngle-phase 200 to 240 V and 3-phase 200 to 240 V.
  • Page 12 [In case of using the power switch for La] Connect motor output cord @1 to connector @2 locat- ed on the side of the box. Installng power swtch Ja 3ø 220V Connect power supply cord to the power switch. Black [JA specifications] 3-phase 220 V : Power supply cords : black,...
  • Page 13 Remove two screws to remove clampng plate from the main body of the control box. Remove connector whle holdng ts lockng secton with your fingers. Turn connector to remove the cord lockng secton. Loosen nut to remove the connector from clampng plate –...
  • Page 14 Put locknut on the power cord and draw out the cord from nsde clampng plate Install clampng plate back to the control box. Pass power cord through condut Fix conduit wth locknuts wth clampng plate placed between the locknuts. Close underside cover and secure the cover wth screw –...

  • Page 15: Attaching The Connecting Rod

    11) Make sure that the power swtch s turned OFF and nsert power supply cord comng from the power swtch nto the power plug socket. (Caution) 1. top end of power supply cord var- ies in accordance with destination or supply voltage.

  • Page 16: Setting Procedure Of The Machine Head

    (Caution) For the operation panel other than CP-18, refer to the Instruction Manual for the operation panel to be used for the setting procedure of the machine head. "#-6. Setting of functions 1) Refer to of SC-922" p.25, and call the func- ton settng No. 95. 2) The type of machne head can be...

  • Page 17: Adjusting The Machine Head (Direct-Drive Motor Type Sewing Machine Only)

    10. adjusting the machine head (direct-drive motor type sewing machine only) (Caution) 1. When the slip between the marker dot on the handwheel and the concave of the cover is ex- cessive after thread trimming, adjust the angle of the machine head by the operation below. 2.

  • Page 18: For The Operator

    #. For tHE oPErator 1. operating procedure of the sewing machine 1) Press ON button 1 of the power swtch to turn ON the power. (Caution) If the power indication LED does not light up even when turning oN the power switch, immediately turn oFF the power switch and check the voltage.

  • Page 19: Operation Panel (Cp-18)

    2. operation panel (CP-18) swtch : Used for changng over effectve/neffectve of the reverse feed sttchng pattern. swtch : Used for changng over effectve/neffectve of the overlapped sttchng pattern. switch : Used for confirming the contents of setting and for changing over effective/ineffective of the reverse feed sttchng at sewng start.

  • Page 20: Operating Procedure Of The Sewing Pattern

    3. operating procedure of the sewing pattern (Caution) 1. For the operation panel other than CP-18, refer to the Instruction Manual for the operation panel to be used. 2. For some machine heads, reverse-stitching pattern cannot be used. (1) reverse feed stitching pattern Reverse feed sttchng at sewng start and reverse feed sttchng at sewng end can be separately pro- grammed.

  • Page 21: Overlapped StTchNg Pattern

    (2) overlapped stitching pattern Overlapped sttchng pattern can be programmed. A : Number of sttches of normal sttchng settng 0 to 15 sttches B : Number of sttches of reverse sttchng settng 0 to 15 sttches C : Number of stitches of normal stitching setting 0 to 15 sttches D : Number of times of repetition 0 to 9 tmes...

  • Page 22: One-Touch Setting

    A part of functon settng tems can be easly changed n the normal sewng state. (Caution) For the setting of functions other than those covered in this part, refer to "#-6. Setting of func- tions of SC-922" p.25. [one-touch setting procedure] 1) Keep...
  • Page 23 8 Adjustment of the quantity of light of LED lamp ( Used to adjust the quantity of light of LED lamp (optional) Settng range : 0 to 100% 9 Optcal sensor functon ( : Optcal sensor functon s dsabled. : After the optcal sensor nput, the sewng machne s stopped after the sewng of the number of sttches set wth !2 ( * Ths functon s enabled when the optcal sensor s set wth functon settng No.

  • Page 24: Production Support Function

    5. Production support function The production support function consists of three different functions (six different modes) such as the produc- tion volume management function, operation measuring function and bobbin counter function. Each of them has ts own producton support effect. Select the approprate functon (mode) as requred. ■ Production volume management function Target No.
  • Page 25 Sewng can be performed wth the producton support data dsplayed on the control panel. [Basic operation of the production support modes] 1) When swtch 7 s pressed in the normal sewing state, LED E lghts up to enter the producton sup- port mode.
  • Page 26 Table 2: Mode resetting operation Switch 5 Switch 5 (held pressed for 2 (held pressed for 4 sec- Mode name seconds) onds) Target No. of pcs. display mode Resets the actual number of pieces [F100] Resets the difference between tar- get number of pieces and actual number of pieces Target/actual No.

  • Page 27: Setting Of Functions Of Sc-922

    6. Setting of functions of SC-922 Functions can be selected and specified. (Caution) For the function setting procedure of any operation panel other than CP-18, refer to the In- struction Manual for the operation panel to be used. 1) Turn ON the power wth swtch 7 held pressed.
  • Page 28 In the case the screen shown at the left s dsplayed by the operaton de- scrbed n 1) on the prevous page, the screen s locked by the password. Refer to the Engineer's Manual for how to set and reset the password. –...

  • Page 29: Function Setting List

    7. Function setting list Item Description Settng range Indcaton of functon settng Ref. page Soft start The number of sttches to be sewn at a low speed when the soft- functon start functon s used at the start of sewng. 0 to 9 0 : The functon s not selected.
  • Page 30 Item Description Settng range Indcaton of functon settng Ref. page 22 Needle up/down Functon of the needle up/down correcton swtch s changed correcton over. swtch 0 : Needle up/down compensaton changeover 1 : One sttch compensaton functon 25 Thread trmmng Thread trmmng operaton after movng the needle away from operaton after ts upper or lower poston by turnng the handwheel by hand s...
  • Page 31 Item Description Settng range Indcaton of functon settng Ref. page 50 Pedal Type of pedal sensor s selected. specification 0 : KFL 1 : PFL “#-10. Selection of the pedal specifications” p. 47. Refer to 51 Compensation of Compensation of starting the solenoid for reverse feed stitching solenod-on tmng when reverse feed sttchng at the start of sewng s performed.
  • Page 32 Item Description Settng range Indcaton of functon settng Ref. page 76 One-shot functon One-shot operation up to the material end is specified. (to be used only with CP-18) 0 : One-shot operaton s not performed. 1 : One-shot operaton s performed. Sucton moton tme of presser foot lftng solenod 84 Intal moton sucton tme of...
  • Page 33 0 : The functon s n the OFF state 1 : The functon s n the ON state 154 Condensation Enabled when the SC-922 is used in combination with the ma- sttchng chne head provded wth condensaton sttchng functon for...
  • Page 34 Item Description Setting range Indication of function setting Ref. page 178 Output of ON signal for the alternating vertical movement of walking foot and alternating presser foot during reverse feed stitching at the beginning of sewing is vertical output. movement of walking foot 1 7 8 and presser foot...

  • Page 35: Detailed Explanation Of Selection Of Functions

    8. Detailed explanation of selection of functions 1 Selection of the soft-start function (Function setting No. 1 and 37) The needle thread may fal to nterlace wth the bobbn thread at the start of sewng when the sttchng ptch (sttch length) s small or a thck needle s used. To solve such problem, ths functon (called “soft-start”) s used to lmt the sewng speed, thereby assurng successful formaton of the startng sttches.
  • Page 36 8 Selection of the optional input/output function (Function setting No. 12) Select functon settng No. 12 wth the operatng procedure of functon set- tng procedures 1) through 3). Select the items of "End", "in" and "oUT" with keys 5 and 6 . [When "in"...
  • Page 37 Input function list Function code Abbreviation Function item Remarks No function (Standard setting) Needle up / down compensating stitching Every time the switch is pressed, normal feed stitching by half stitch is performed. (Same operation as that of up / down compensating stitching switch on the panel.) Back compensating stitching Reverse feed stitching is performed at low speed while the switch is held pressing.
  • Page 38 Output function list Function code Abbreviation Function item Remarks No function (Standard setting) Thread trimming output Output of thread trimming signal Thread wiper output Output of thread wiper signal Thread release output Output of thread release signal Presser lifter output Output of presser lifting signal Reverse feed stitching output Output of reverse feed stitching signal...
  • Page 39 Input function setting connectors output function setting connector Con- Con- Display Intal value of functon set- Display Intal value of functon set- nector nector tng tng Machne head swtch 1 nput Machine head LED 1 output Machne head swtch 2 nput Machine head LED 2 output Machne head swtch 3 nput Machine head LED 3 output...
  • Page 40 9 Sewing counting function (Function setting No. 14) The functon counts up every tme thread trmmng s completed and counts the number of completon of the sewng process. 0 : off Sewng countng functon s noperatve. 1 : on Sewing counting function is operative. (Every time thread trimming s performed) 2 : on External sewing counter switch input.
  • Page 41 !3 Function of reverse feed stitching on the way (Function setting Nos. 30 to 33) Functons of the lmt of number of sttches and thread trmmng command can be added to the touch back swtch on the sewng machne head. Functon settng No.
  • Page 42 !5 Holding time of lifting presser foot (Function setting No. 47) This function automatically lowers the presser foot when the time set with the setting No. 47 has passed after lifting the presser foot. When the pneumatic type presser foot lifter is selected, the holding time control of lifting presser foot is lim- itless regardless of the set value.
  • Page 43 !8 reverse revolution to lift the needle after thread trimming (Function setting No. 56) Ths functon s used to make the sewng machne rotate n the reverse drecton after thread trmmng to lft the needle bar almost to hghest poston. Use ths functon when the needle appears under the presser foot and t s lkely to make scratches on the sewng products of heavy-weght materal or the lke.
  • Page 44 @2 Function of soft-down of presser foot (with aK device only) (Function setting Nos. 70 and 49) Ths functon can softly lower the presser foot. Ths functon can be used when t s necessary to decrease contact nose, cloth defect, or slppage of cloth at the tme of lowerng the presser foot.
  • Page 45 @8 Function added to the needle up / down compensating switch (Function setting No. 93) Operaton of needle up/down compensatng swtch s changed after turnng ON the power or thread trmmng. 0 : Normal (needle up/down compensatng sttchng only) 1 : One sttch compensatng sttchng s performed only when aforemen- toned changeover s made.
  • Page 46 #7 Selection of alternate up/down initial output (function setting No. 147) Alternate up/down output s forcbly turned ON or OFF when the power s turned ON. When this function is set to disable, the alternate up/down output is restored to the state in which the func- ton has been set before the last turn-OFF of the power.
  • Page 47 $4 Bobbin thread remaining amount detecting function (function setting Nos. 167 and 168) Enable/disable of the bobbin thread remaining amount detecting function (function setting No. 167) Enable/disable of the bobbin thread remaining amount detecting function is set in the case the bobbin thread remanng amount detectng devce s used.
  • Page 48 Pedal depressng speed lmtng functon (Functon settng No. 242) The functon lmts the sewng speed upon the optcal sensor nput. (Caution) this function can be set to "3" only for the CP-18. For the other operation panels, set this function with the switches on the panel. 0 : The functon s dsabled.

  • Page 49: Automatic Compensation Of Neutral Point Of The Pedal Sensor

    9. automatic compensation of neutral point of the pedal sensor Whenever the pedal sensor, spring, etc. are replaced, be sure to perform following operation : 1) Pressng swtch 4 , turn ON the power swtch. 2) Compensated value is displayed on ndcator B .

  • Page 50: Setting Of The Auto Lifter Function

    11. Setting of the auto lifter function WarNING : When the solenoid is used with the air drive setting, the solenoid may be burned out. So, do not mistake the setting. When the auto-lifter device (AK) is attached, this function makes the function of auto-lifter work. 1) Turn ON the power swtch wth swtch 5 held pressed.

  • Page 51: Selecting Procedure Of The Key-Lock Function

    Display does not appear: The key lock function is ineffective. 13. Initialization of the setting data All contents of function setting of SC-922 can be returned to the standard set values. 1) Turn ON the POWER switch with all swtch 4 , swtch 5 and swtch 6 held pressed.

  • Page 52: External Input / Output Connector

    Opton 22 output NPN open collector OPO23 Output Opton 23 output NPN open collector OPO24 Output Opton 24 output NPN open collector JUKI genuine part No. Connector : Part No. HK034610220 Pin contact : Part No. HK03464000A – 50 –...

  • Page 53: How To Connect The Material Edge Sensor

    15. How to connect the material edge sensor For SC-922, a commercially available photoelectric sensor can be connected and used as a material end sensor. A connection example is shown below. 1) Connect the material end sensor to the connector 2-wire Pn No.

  • Page 54: Maintenance

    $. MaINtENaNCE 1. removing the rear cover WarNING : to prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine, remove the cover after turning oFF the power switch and a lapse of 5 minutes or more. to prevent personal injuries, when a fuse has blown out, be sure to replace it with a new one with the same capacity after turning oFF the power switch and removing the cause of the blown-out of the fuse.

  • Page 55: Error Codes

    3. Error codes In case of the followng, check agan before you judge the case as trouble. Phenomenon Cause Corrective measure When tilting the sewing machine, the When tilting the sewing machine with- Tlt the sewng machne after turnng buzzer beeps and the sewng ma- out turnng OFF the power swtch, Ac- OFF the power.

  • Page 56: Checking Procedure Of The Error Code

    Undefined machine head is • The machne head that does not support • Check the machine head selection using selected the SC-922 is selected. functon settng No. 95. E011(*) Meda s not nserted. • Meda s not nserted. • Turn the power OFF and check the meda.
  • Page 57 Description of error detected Cause of occurrence expected Items to be checked E053(*) Notification of production • Ths error number s dsplayed after the support functon ntalzaton execution of initialization of the produc- (Ths s not an error) ton support functon or upgradng of the program.
  • Page 58 • Check whether the applied power voltage is s nputted. higher than the rated voltage + (plus) 10% or more. • 200V has been inputted to SC-922 of 100V • Check whether 100V/200V changeover con- specifications. nector s mproperly set.

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