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HCASINGLE-HEAD ELECTRONIC EMBROIDERY MACHINE

MAINTENANCE MANUAL(ELECTRIC RELATED)

For Qualified Personal Only

REVISION No.2 '00.6

000 A629

TE

-CA -2

1. EXPLANATION OF VERSION NUMBER OF SOFTWARE 2.0

Note 1. Unlike previous method of "Master ROM MS", "Slave ROM SL", there is onlyone method.

Note 2. Model No. (Capacity) of ROM is MX27C2000DC12. (Macronix InternationalCo., Ltd.)

Machine type code : This code indicates machine type to match

HCA-1201-40TTC

Improved No. : This indicates order of improvement.

Reform No. : This indicates order of reform.

HCA1.01

020 8601

TE

-CA -3030 D307

3.02. SETTING OF DIP SWITCH

12345678

OFF ON

UP

1. DS1

OFF ON

Control data *1 Initialization for control data Without

Needle number sensor For 15 needles For 12 needles

Unused Always ON

Unused Always ON

Unused Always ON

Unused Always ON

Thread break detection Adjustment mode Drive mode

Mode selection Monitor mode Normal drive mode

12345678

OFF ON

UP

3. DS3

12345678

OFF ON

UP

Keeper off timing

Cuts threads in length 7 ON 180° OFF 200° ON 220° OFF 240°"Normal" 8 ON ON OFF OFF

Cuts threads in length 7 ON 250° OFF 250° ON 250° OFF 250°"Longer" 8 ON ON OFF OFF

X axis 1 ON OFF ON OFF ON OFF ON OFF

Angle at 2 ON ON OFF OFF ON ON OFF OFF

time of 3 ON ON ON ON OFF OFF OFF OFF

frame move start 20° 30° 40° 50° 60° 70° 80° 90°Y axis 4 ON OFF ON OFF ON OFF ON OFF

Angle at 5 ON ON OFF OFF ON ON OFF OFF

time of 6 ON ON ON ON OFF OFF OFF OFF

frame move start 20° 30° 40° 50° 60° 70° 80° 90°

: This mark shows condition of the machine when it left factory.Please don't fail to turn unused portion ON to ensure function.

Note: In case you changed setting, you need to put power source on.

Note: Please refer to item B in page TE 26.0 for initialization for control data,marked *1.

2. DS2

OFF ON

Frame drive mode Heavy mode (900rmpMAX) Normal mode (1200rmpMAX)

Thread break detecting Rotary type (Spring type)

3 OFF ON OFF ON

Needle number 4 ON ( 8 ) OFF ( 10 ) OFF 12 ON 15

5 ON ON ON OFF

Borer device With Without

Thread cut device Without With

Setting for revolution 1200 rpm MAX -

TE

-CA -4040 8A27

4.03. ADJUSTMENT OF TIMINGAdjustment of main shaft (upper shaft) timing

A. Allocation of timing sensor

B. Positioning of sensor for the lowest needle point(PH1, LED1)

As this sensor is used to synchronize mechanical action and electrictiming, please set so that tolerance comes within ±1 degree. a. Set the main shaft to the lowest needle point (0 degree) with adjusting disc. b. Turn slit plate for the lowest needle point toward direction (positive direction)

where the main shaft revolves so that LED1 on timing circuit board comes toposition where it lights.

c. Turn slit plate further to positive direction and lock fixing screw at positionwhere LED1 went off.

d. Make the main shaft one turn by a hand and check if tolerance between adjust-ing disc and electric timing is within ±1 degree. If tolerance is large, please dosame thing from the beginning.

C. Positioning of detecting sensor of color change point(PH2, LED2)

This sensor is used to judge point at time of color change. When difference islarge, error code E-50 will get to come out. Therefore adjust so that center of slitcomes to "C" point on the adjusting disc. a. Turn the main shaft toward positive direction and set to -12 degrees from color

change point "C" with the adjusting disc. b. Turn slit plate toward positive direction and set to where LED2 lights, and lock. c. Turn the main shaft further toward positive direction and check that LED2 goes

off in the vicinity of +12 degrees from color change point with the adjustingdisc.

D. Checking a. When you stopped the machine with stop switch, please check more than ten

times repeatedly if stop position comes within ±6 degrees of color change point"C Point".

b. When you stopped the machine with thread cut switch, please check more thanten times repeatedly if stop position comes within ±6 degrees of color changepoint "C Point".

c. In case stop position goes beyond color change point or stops before colorchange point and E-50 occurs, main shaft, lower shaft and thread cut drive unitmight get caught. Please turn main shaft with hand to see if it turns smoothly.

Note : Control of the main shaft is obtained by calculating from average figure ofpresent stop position. For checking after adjustment of sensor, you need torepeat start and stop several times. Also you need to repeat this operation forexchanging CPU circuit board.

Lowest needle point Color change point Unused

ES-M04-1010

TE

-CA -5

4. ADJUSTMENT OF MAIN SHAFT REVOLUTION SPEED

Disp Par. Name of parameter Setting figures

No. No.

1 00 00

2 *16 Selection of drive instruction TER

3 *18 Selection of drive mode JOG

4 19 Torque boost 80

5 20 Jogging frequency 2.2 Hz

6 21 Accelerating time 1.0 sec

7 25 Volume of direct current brake 100

8 26 Time of direct current brake 0.5 sec

9 27 Selection of direct current brake POS

10 29 Frequency for start of control 10 Hz

11 30 Carrier frequency 6

12 31 Decelerating time 0.1 sec

13 *73 Frequency when input 5V 125 Hz

14 75 Highest frequency 240 Hz

15 75 Thermal protection NO

Positioning speed( 20 rpm )

Maximum speed(1200rpm)

Table of parameter setting

5.0

Display Cause

L Shortage of power source voltage

OC Trip of over current

OU Trip of over voltage

Err CPU error

EOU Trip of over voltage at time of power input

CAU Alteration and memory of parameter

Main warning and abnormal monitorWhen the machine stops by alarm (E-15) of in-verter, following causes appears on display on theinverter. Please check causes on display as neces-sary measures must be taken according to causes.

050 8601

Adjustment of inverter unit (V5-02-3)

Basically no adjustment is required. Only necessary parameter described in the

table below is set. There are many other parameters. In case you change setting

unnecessarily, you may have unexpected trouble. Therefore if you need to adjust,

please do with enough care.

*Note: Turn knob in the center of inverter fully to the right.

How to set parameter1. Turn power on.

2. Press SET button. At this moment, when you don't touch switch for about 3

seconds, button will return to 00. Please press SET button again.

3. Press either ▲ or ▼ button, let selection of parameter number display and press

SET button.

4. Press either ▲ or ▼ button, select setting figure and press SET button.

How to initialize parametersIf you changed parameter other than that in the setting table and the inverter

worked improperly, please recover it in the following order.

1. In accordance with instruction of change of parameter,

change "15" to "50".

2. Select parameter No. 86, let setting figure YES

display and turn power off with this status as is.

3. After display disappeared, when you turned

power on, parameter will be initialized and

---- will be displayed.

4. Once again, please turn power on, then set

parameter figure in the table below.

Regarding prameters marked *. If you want to change parameters

marked * and you input desired setting value, "CAU" appears.

If your desired setting is correct, press ▲▼ switch at the same time,

then you will get new setting completed.

TE

-CA -6

4. ADJUSTMENT OF MAIN SHAFT REVOLUTION SPEED 5.1

Adjustment of inverter unit (V5-02-3)(Supplement)

A. Alteration of display order of parameter1. Turn power on.

2. Press SET button to get 00 - - displayed.

3. Keep pressing ▲ button to get 99¯ ¯ displayed.

4. Press SET button to get 01¯ ¯ (display order) displayed and select display order

with ▲ ▼ switch.

5. Further press SET button to tern display to - - 01 (parameter number) and

select parameter number with ▲ ▼ switch.

6. Repeat 4 and 5, please set so that display of parameter number is arrayed in

order in the list of prior page.

B. Alteration of parameterNormally 15 different parameters are set. If you want to conduct operation of C &

D, change parameter in the following steps.

1. Turn power on.

2. Press SET button to get 00 - - displayed, then keep pressing ▼ switch for about

10 seconds.

3. Display will turn from 00_ _ to _ _ 15.

4. Set _ _15 to _ _50 with a ▲ ▼ switch.

5. Press SET button (display of 50 different parameters becomes possible).

C. How to initialize parametersIf you changed parameter other than that in the setting table

and the inverter worked improperly, please recover it in the

following order.

1. Select parameter No. 86, let setting figure YES display and

turn power off with this status as is.

2. After display disappeared, when you turned power on,

parameter will be initialized and ----will be displayed.

3. Once again, please turn power on, then set parameter

figure of prior page.

D. Release of parameter lockIf you locked parameter mistakenly, release it in the follow-

ing manner:

1. Turn power on while pressing SET button.

2. Press SET button to display 00 - - , then keep pressing ▲

and when you get 99¯ ¯ displayed, release button.

3. If you further keep pressing ▲ for about 10 seconds, you

will get - -NO displayed.

4. Press SET button.

051 8601

TE

-CA -7

4. ADJUSTMENT OF MAIN SHAFT REVOLUTION SPEED 6.0

Speed setting table (rpm)

Monitor No. How to set Set value

Maximum speed Machine "20" VRH 1200rpm

Low speed VRL 300rpm

*Positioning speed Machine " 6" Inverter 20rpm

Start speed Machine "42" Automatic set 90rpm

Minimum middle speed Machine "44" Automatic set 300rpm

Middle speed Machine "49" Automatic set 340rpm

"76" Automatic set 1200rpm

# Settling of positioning speed is adjusted by inverter ( To selectparameter No. 20 ).

060 8601

2. Adjustment of CPU circuit board (in control box)(ES-HCG-8305)

In order to adjust and set main shaft revolution speed, the machine must beswitched to monitor mode.

Please turn 8 on DS1 on reverse side of control box OFF to start power source.

A. Adjustment of highest speed (1200rpm) and adjustment of lowspeed (300 rpm).

a. Make sure that parameter No. 73 of inverter unit is set to 125 Hz (mentioned on

page 5.0).

b. Turn knob on control box to "Left" to the full.

c. Turn VRH ( figure at the right) to "Right" to the full.

d. Select "Machine" on monitor rode, start maximum speed (No. 20) and adjust

with VRL so that speed on control box shows 440rpm.

e. Turn knob on control box fully to "Right" after you have turned VRH fully to

"Left".

f. Turn VRH to "Right" gradually to adjust to 1200rpm.

g. Turn knob in control box fully to "Left" and make sure that revolution is

300rpm.

B. Automatic setting of speed control dataTeaching will automatically set control data that will automatically reduce speed in

compliance with stitch width.

a. Adjust maximum speed and low speed in advance as mentioned in preceding A.

b. Turn knob on control box full to the right.

c. Select "Machine" on monitor mode to start automatic setting (No.2l).

d. When machine started, it will increase speed gradually frame stop and make

internal setting of control data. Setting will take 1 - 2 minutes and caves to

automatic stop upon completion.

e. When you press escape key after pressing stop switch , the machine will

return to main menu.

C. Confirmation of speed control data By pressing monitors Nos. 20, 6, 42-67, you

can confirm speed that is automatically set as

shown in the list below. There may be a

difference of ±20 rpm between setting value

in the list and actual speed save for Nos. 6

and 42, but this difference will produce no

problem in function. As for details on middle

speed, refer to TE9.0.

Note: Autocratically set control data is loaded on tomemory in circuit board and maintained,however if this data died away (E-121) or youexchanged CPU circuit board, you need to re-set it.If you don't re-set after "E-121" appeared,speed will not increase to more than 410rpm.

TE

-CA -8

4. ADJUSTMENT OF REVOLUTION SPEED OF MAIN SHAFT

Highest speed (VRH) 12001st middle speed

Low speed

Positioning speed (JOG)

(rpm)

Slow start(3 stitches, 5 stitches)

Automatic speedreduction accordingto stitch width

Variable by control knob (300-1200)

Minimum middle speed

Lowest speed (VRL)

Stop switch "ON"Start switch "ON"Machine Stop

7.0

070 8601

3. Speed control sequence

TE

-CA -9

5. OPERATION OF MONITOR < Machine > 9.0

090 8601

Monitor No. Entry

0 Total stop

1 Maxim speed revolution of main shaft (control volume) 300 ~ 1200 rpm

4 Confirmation for minimum middle speed revolution of main shaft 90

5 Confirmation for low speed revolution of main shaft 120

6 Positioning speed revolution of main shaftshaft (inverter unit) 20

8 Jump solenoid ON

10 A series of thread catch motion

11 Keeper solenoid ON

14 ( Holder solenoid ON )

15 ( Holder solenoid OFF )

20 Output of maximum speed

21 Automatic setting of speed control data (No.40~67)

No.40 ~ 67 Confirmation of speed

40 Confirmation of 0 rpm 59 Confirmation of 650 rpm

41 20 rpm 60 680 rpm

42 80 rpm 61 720 rpm

43 120 rpm 62 750 rpm

44 290 rpm 63 780 rpm

45 " rpm 64 810 rpm

46 " rpm 65 840 rpm

47 290 rpm 66 880 rpm

48 300 rpm 67 910 rpm

49 330 rpm 68 940 rpm

50 360 rpm 69 970 rpm

51 400 rpm 70 1000 rpm

52 430 rpm 71 1040 rpm

53 460 rpm 72 1070 rpm

54 490 rpm 73 1100 rpm

55 520 rpm 74 1130 rpm

56 560 rpm 75 1160 rpm

57 590 rpm 76 1200 rpm

58 620 rpm

Order of operationa. Change monitor mode with key to select "Machine" with key.

b. Input monitor number shown below with number key.

c. Entry is made by pressing switch. When you press switch again, entry

stops.

d. You can't move to other tests if entry has not been stopped.

e. When you finished action test, you should make sure that stop position of each

unit is at regular position. Then you can move to next operation.

TE

-CA -10

12.0

Connection diagram for unit parts ES-HCA-81**

Connecting diagram for control box ES-HCA-8102

AC circuit HCA-8103

Connecting diagram for inverter HCA-8104

Connecting diagram for pulse motor HCA-8105

Layout of main box (Back view) HCA-8106

Circuit board No. ES-HCG-82**

CPU circuit board HCG-8305

Switch circuit board HCG-8306

Drive circuit board HCA-8301

Thread break detecting circuit board HMX-8322

Jump switch circuit board HCM-8300

Photo sensor circuit board (12 needles) HCG-8312 (12 needles)

Needle number sensor HCA-7512

Needle bar selection detecting circuit board HCA-7511

Main shaft timing circuit board M04-1010

HCA-1201-40TTC

Drawing No. list ES-HCA-8000

Electric connection diagram ES-HCA-8101

6. HARDWARE MATERIALS

120 8A27

TE

-CA -11

7. EXPLANATION OF FUNCTION OF CIRCUIT BOARD 20.0

1. CPU circuit board HCG-8305 (in control box)

200 8A27

Connector No. Connection to Function

A CN1 Connector circuit board CN1 Input and output of control signal of the machine

B CN2 Connector circuit board CN2 "

C CN3 FD unit, LCD unit Reading and writing of data to floppy disk and LCD

D CN4 Switch circuit board CN1 Read operation switch from control box and put out data for display

E CN4A Switch circuit board CN2 Speed control for main shaft motor

F CN5 Drive circuit board CN1 +5V power source

G CN6 External device External serial communication (RS-232C)

H CN7 " External parallel communication

Code Name Remarks

1 ROM ROM (CG2-1. ** ) Control software for CPU circuit board

2 DS1~3 DIP switch *Refer to page of TE 3 "DIP switch setting"

3 VR1 VR for setting power suspension detecting voltage *1

4 VR2 VR 2 Contrast adjusting VR for LCD

5 VRH,L Speed setting VR Described in page 6.0

*1. Voltage to detect power failure is set to break main switch whenvoltage drops to 70% of nominal input voltage. When adjustmentgot out of order, please adjust with VR1 so that voltage betweenTPGND and TP1 indicates 1.7-1.8V with DC range of tester.When the machine detects power suspension oftentimes while it isrunning, turn VR1 slightly to the right.

TE

-CA -12


2. Connector circuit board HCG-8301 (in support box right)

210 8A27


A CN1 CPU circuit board CN5 +5V power source / +10V, +30V power source

Thread break detecting circuit board CN4

B CN2 Transformer T2, Each solenoid Input of AC24V/AC8V, Keeper SL Thread catch SL Thread cut SL

Brake SL, Power source OFF, Control of SL

C CN2A Pulse motor driver +5V power source

D CN3 Needle bar selection motor Color change (Needle bar selection)

E CN4 Pulse motor driver CN1 DC50V / DC260V power source circuit board

R/S terminal on inverter

F CN5 CPU circuit board CN2 Input and output of control signal of the machine

G CN6 CPU circuit board CN1 "

H CN7 Thread break detecting circuit board CN1 Control of ON/OFF for thread break detecting and jump solenoid

I CN8 Timing circuit board CN1 Read main shaft angle

J CN9 Inverter unit Control of inverter (number of main shaft revolution)

K CN10 Emergency stop switch Input of signal of emergency stop switch

L CNG Frame limit switch 0V (GND)

Code Name Remarks

1 F1 Fuse 2A Protection for over current +5V

ES-H

CG

-83

01

TE

-CA -13


4. Thread break detecting circuit board HMX-8322 (in thread tension bracket for each head)

Code Name Remarks

1 SW1 Jump stitch

2 SW2 Mending switch

3 DS DIP switch Setting switch according to table below


A CN1 Drive circuit board, CN7 Control signal, +5V power source

B CN2 Jump solenoid Control of ON/OFF for jump solenoid

C CN3 -

D CN4 Drive circuit board, CN1 +30V, +10V, solenoid for power source

E CN5, 8 Thread break detecting sensor Thread break detecting signal

230 8A27

ON OFFDS-1 Rotary type Spring typeDS-2 UTCDS-3DS-4 ALT no ALT yes

ES-HMX-8322

TE

-CA -14


4. Needle bar selection detecting part (in needle bar selection unit)

Name Connection to Function

A Needle number sensor CPU circuit board CN1 Detection signal of needle number

B Regular position sensor CPU circuit board CN2 Detection signal of Regular position

C Needle bar selection motor Connector circuit board CN9 Needle bar selection

240 A629

MECHANISM DRAWING

Slit disc

Counterclockwise

Clockwise

When you got E-220, E-204 displayed while the machine is in action or

makes color change, please release error in the following manner:

a. First of all, check that main shaft stops at C point, then put 4mm wrench

in screw of portion ➀ as shown in the left Fig., and turn it either of left or

right to set it at regular position.

(However, when move head is at 1st needle or 12(15)th needle, move

head may get derailed. Please pay care in direction when turning)

b. There are two regular positions when main shaft makes one turn.

You can have a light feeling in hand when you turned main shaft.

c. Please check if you feel heavy at a place where error occurred.

Regularpositionarea

Needle number sensorNeedle bar selection motor

Regular position sensor

Portion

12(15)th needle 1st needle

12(15)th needle 1st needle

TE

-CA -15

8. ERROR CODE TABLE 25.0

250 8601

Code No. Contents of error detected

1 Abnormality in CPU circuit board. (Out of order)

2 Power suspension or abnormal drop of power source voltage.

3 ~ 8 Abnormality in CPU circuit board.

4 Abnormality in CPU circuit board. (RAM)

15 Alarm signal in inverter unit

16 Alarm signal in X axis pulse motor driver

17 Alarm signal in Y axis pulse motor driver

18 Abnormality in signal for main shaft revolution. (encoder signal)

20 Abnormality in needle number detection. (needle bar selection circuit board)

21, 22 Improper running of needle bar selection motor. (Voltage for sensor input signal is same.)

24 position of needle bar is off its center.

25 Needle number not existing in the machine was specified.

26 Needle number at time of power start is different from prior state of memory storage. (Refer to item B. c in TE 26.0)

30 Improper adjustment of low speed revolution, revolution doesn't reduce below 100 revolutions.

50 Improper stop position of main shaft, C point sensor doesn't detect.

51 Abnormality in timing detection, sensor of the lowest needle point doesn't detect.

52 Abnormality in timing detection, "C" point sensor doesn't detect.

60 Frame moves beyond sewing area in X axis.

61 Frame moves beyond sewing area in Y axis.

70 Needle (Safety) sensor acted.

90, 91 Error in data communication

102 Paper tape of reader unit is placed improperly.

103 Tape format is not properly read. (unable to judge)

104 Timing to read stitch holes doesn't conform.

105 One character frame has over 2 stitch holes.

106 The machine doesn't read stitch holes. (20 holes at time of tape operation, 500 holes at time of reader reading)

108 Pattern data in memory was destroyed.

110 No space in memory.

111 Frequency of color change exceeded its limit allowed in one pattern.

112, 117 Error in memory check.

113 〃

114, 115 Number of patterns exceeded limit.

116 Unregistered pattern number was designated.

120 Improper back-up of memory.

130 Other error not mentioned in this error code list

131 Disk is not set.

132 Disk write protect

133 Other disk than designated disk (2DD/2HD) or disk is broken

134 Trouble in disk drive unit.

140 Number of patterns for registration exceeded capacity of disk

141 No designated pattern in disk

142 No space in disk

143 Same pattern name exists in data disk.

190 Wrong position of original point for knife.

193 Hooks don't return.

TE

-CA -16

9. NOTE WHEN EXCHANGING CIRCUIT BOARD 26.0

A. Note when exchanging CPU circuit board a. When exchanging circuit board, please check that ROM is installed. In case

ROM is found not equipped on a new circuit board, please remove from the old

circuit board and use it.

b. When having exchanged CPU circuit board, speed control data must be stored

anew. The refer reset it in accordance with "Adjustment of main shaft revolution

speed" on TE 6.0. When error E-121 came out for some reason or when main

shaft doesn't turn at time of starting the machine and E-18 come out, speed

control data must also be stored.

c. Check that setting of DIP switch is same as before exchange.

B. Initialization of control data of CPU circuit boarda. Discharge of battery caused by keeping CPU circuit board for a long time or

stored control data died away for careless handling, you can't, in some instance,

conduct input operation with abnormality sign displayed on screen even if you

started power source. In such a case, turn DS1-1 on reverse side of control box

OFF and start power source again to initialize control data. Also please set speed

control data automatically.

b. Please don't forget to turn DS-1 ON after you have initialized.

c. When you finished above initialization and start power source, E-26 (different

from prior needle number) is displayed. This is not abnormal. Press clear key

to clear it.

C. Note when handling circuit boards a. Prevention of electric discharge for backup battery

As CPU circuit board (HCG-8305) are with battery to back up data, don't place

soldered side of circuit board on metals or don't pack them in aluminum foil or

electric conductive vinyl etc. For packing, please use electric charge preventive

vinyl bags that wrap parts when they leave our factory.

b. Protection from static electricity

Static electricity emitted from human body may destroy internal circuit on IC.

Please refrain from touching pins on IC as much as possible.

c. Note when exchanging ROM

When you fix and remove ROM, there is a fear that you bend pins on ROM.

Please pay enough care. There is a rule in fixing ROM. Each ROM has a dent

on tip. Please place ROM with its dent on same shaped mark on circuit board as

illustrated.

Also there is a case that you cut wires on circuit board by putting drivers etc.

into ROM socket when you exchange ROM. Please pay care.

d. Note when exchanging timing circuit board.

By backlash produced in exchanging this board, slit plate may rub sensor or the

lowest needle point and position of "C" point may be out of their places. Please

be sure to check after exchange.

260 8601

TE

-CA -17

10. DIAGNOSIS AND MEASURES OF TROUBLES 27.0

Diagnosis by monitor mode

A. Following individual action will be checked by operation of

monitor mode.

Carry out individual action according to contents supposed to

be in trouble and check if there is no malfunction (for

example, loosening of screw, catch and break of parts etc.) in

mechanical power transmission.

B. When there is no mechanical trouble, it will be taken that

circuit boards or drive units (inverter, pulse motor driver etc.)

may be in trouble.

Please refer to pages for "Explanation of function of circuit

board" or "Diagnosis and Measures of Troubles" and

exchange circuit boards or units supposed to be in trouble.

Individual action How to check

Frame move Control box

Needle bar selection "

Thread cut / Thread catch Thread cut switch

Speed to determine position of main shaft (JOG) Monitor mode <Machine > regarding machine action

Main shaft revolution (refer to page TE 9.0)

Jump solenoid ON/OFF

Consecutive action of thread cut

Keeper solenoid ON/OFF

Checking of memory IC Monitor mode <Memory> (refer to page TE 10.0)

270 8601

TE

-CA -18


Troubles Causes Remarks (Measures)

1. Current capacity of breaker is not large

enough.

2. Loose or bad connection in breaker box

Power source related troubles

Breaker at power source trips 1. Check that breaker is rated for 15A. (Require type of breaker 15 ampere or with 100mA equipment protection)2. Be sure all connections are tight.

280 8601

1. Leak sensitivity current of leak breaker isshort.

2. Leak current of embroidery machine is overits capacity (usually in case leak current ofembroidery machine is 200V, about 10mA.)

Leak breaker at power sourcetrips

1. power source plug not inserted properly2. Loosened screw in power source plug3. Power source voltage is short4. Rachet in main unit is out of order5. Trouble in TR1 on power circuit board in main

unit6. Signal (0~0.6A) of power source break is input in

3nd pin of CN6 on power source circuit board

7. Short in AC100V wiring of embroidery ma-

chine

Main switch of machine doesn'tturn on

1. Improper adjustment of power failure detectingvoltage (VR1) of master circuit board or troublein circuit board

2. Error code 1 appears when power source isturned on again

3. Error code 2 appears when power source isturned on again

4. Error codes 3,4 & 10 appears when powersource is turned on again

5. Error codes 5,6,7,8 & 11 appears when powersource is turned on again

1. Turn VR1 to the right

little by little and check if

condition recovered.

2 ~11 Check display of

error code and contact

us

Main switch drops often times

1. Check power sourceplug

3. Switch tap on terminalbase in back of themachine

5. Exchange drive circuit board

7. Check if there in noclogging of wires

1. Exchange to leakbreaker of sensitivitycurrent of about100 mA

2. Check if there in noclogging of wires

Fuse (6A) on power source input

goes off. (Back of tha machine)

1. Rare short in solenoid, transformer2. Trouble in circuit board (Drive, CPU, Thread

brake detection, Timing etc.) or trouble in unit(Driver, invertor)

3. Wiring cords got pinched

Going off of fuse

1. Exchange of solenoid, transformer2. Exchange of disabled circuit board, unit


Fuse F1 (2A) on drive circuit

board go off.1. Exchange of disabled circuit board

1. Abnormal in +5V power source systemTrouble in circuit board (Drive, CPU, Threadbrake detection, Timing etc.)

2. Wiring cords got pinched

TE

-CA -19



When main switch is turned on,

display on control box is not

normal and the machine doesn't

actuate.

CPU circuit board related troubles

1. Improper connection of connector CN4 on CPU

circuit board and connector CN1 on switch

circuit board

2. Improper connection of connector CN3 on CPU

circuit board and LCD

Trouble in LCD

3. Trouble in CPU circuit board

Main shaft revolution related troubles


Machine starts, but speed

doesn't increase1. Trouble in rotary encoder

2. Trouble in timing circuit board

3. Trouble in CPU circuit board (trouble in input

portion of encoder and output portion of inverter)

4. Disconnection of cord from speed adjustment

knob on control box and improper connection

5. Improper adjustment of inverter, trouble in

inverterWhen machine stops, stop

position is irregular and it doesn't

stop at C point (Error code "E-50"

appears)

1. Bad rotary encoder

2. Bad timing circuit board

3. Improper adjustment of inverter

4. Improper adjustment of speed to determine

position when machine stops (JOG)

5. When trouble appears only at time of thread cut,

insufficient adjustment of thread cut blade.

Even if you started machine,

main shaft motor doesn't run

E-018 appears

1. Dying out of speed control data on CPU circuitboard

2. Trouble in CPU circuit board (even if machinestarted, RUN signal and REF signal are not outputagainst inverter

3. Trouble in inverter, alarm appears4. Trouble in switch input circuit on CPU circuit

board5. Trouble in main shaft motor, loosened wires,

disconnection6. Trouble in start switch

Check connection ofconnector on control box

2. Exchange LCD3. Exchange CPU circuit

board

1. To set speed control data with monitor mode mentioned in TE 6.0 B2. Check parameter ofinverts. Check/exchangepower source voltage.

If main shaft turns normallywith monitor mode,malfunction in other partsthan inverter, other thancircuit board.Check speed of each settingwith monitor mole and see atthis moment if speed isexactly displayed.If revolution is normal butdisplay is not normal, troublein encoder or timing circuitboard.

5. Check/exchangeparameter of inverter.

Check speed of each settingwith monitor mole and seeat this moment if speed isexactly displayed.If revolution is normal butdisplay is not normal, troublein encoder or timing circuitboard.

3. Check torque boost ofinverter and JOG

290 8601

TE

-CA -20

10. DIAGNOSIS AND MEASURES OF TROUBLES


Frame doesn't move even if you

press frame move key on control

box

Frame doesn't move smoothly

1. Improper connection of connector CN2 on CPU circuitboard, disconnection of signal cord for pulse motordriver, disconnection of lead cord for pulse motor

2. Improper connection of pulse motor driver3. Trouble in pulse motor driver4. Trouble in CPU circuit board5. Power source (+50V) of pulse motor driver is not

supplied.

1. Trouble in pulse motor2. Trouble in pulse motor driver3. Backlash in carriage related portion, get caught

on etc.2. Exchange of pulse motor

driver

300 8601

30.0

3. Exchange of pulse motor

driver

4. Exchange of CPU circuit

board

5. Checking of output AC40V

of transformer T1

Frame move related trouble


Error message

E-021

E-022

E-024 appears

Error message

E-026 appears

1. Mechanical structure is not smooth

2. Disconnection of needle bar selection motor

3. Trouble in drive circuit (drive circuit board)

4. Trouble in regular position sensor

1. This message is displayed when control data on

CPU circuit board was initialized. Release with

clear key "C"

Refer to page of TE 23.0

Needle bar selection related trouble

TE

-CA -21


Troubles Causes Measures

Machine starts and main shaft

turns, but needle don't drop

(Jump solenoid does not move)

1. Trouble in thread break detecting circuit board

2. Is drive voltage 30V, 10V of jump solenoid

properly on ?

3. Jump structure don't work smoothly, mechanical

trouble

4. Trouble in jump solenoid

5. Disconnection of wiring cords, improper connec-

tion of connector

Jump related trouble

1. Exchange of thread break

detecting circuit board

2. Check voltage of trans-

former (T2)

4. Exchange of jump solenoid

320 8601

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