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	1		What is the inertia tuning?



	1) After turning on the power, push the Prog button followed by pushing the Enter button to go to the screen for the inertia tuning.


	2		How to use the inertia tuning function



	1) After turning on the power, push the Prog button followed by pushing the Enter button to go to the screen for the inertia tuning. Once the screen is opened, the “tUnE” character set is flicking. 2) Once the screen is switched, push the pedal until a sound beeps. If you release the pedal before beeping, the inertia tuning is not completed. So, push it down till it sounds. - While tuning the inertia, the machine starts and stops 10 times by itself. - In case of Servomotor Series 2, it repeats 8 times. 3) If the inertia tuning is completed, the screen is switched to the default display with beeping.


	3		What stands for FET in electronic parts?



	FET is an acronym for Field Effect Transistor. It refers to any transistor that uses an applied voltage (the field) as its mechanism to turn on or off. A basic transistor has three terminals. A FET's three terminals are usually called 'source', 'drain' and 'gate'. a FET can be used as a switch simply by raising and lowering the gate voltage around its threshold value. FETs also operate as current amplifiers by increasing the gate voltage


	4		what is a servo motor?



	A Servo is a small device that has an output shaft. This shaft can be positioned to specific angular positions by sending the servo a coded signal. As long as the coded signal exists on the input line, the servo will maintain the angular position of the shaft. As the coded signal changes, the angular position of the shaft changes


	5		Is there a relation between motor speed and frequency?



	In case of servo motor speed, it doesn't change according to frequency. But n/p or clutch motor speed changed by frequency. motor speed = 120 * F / P (F=frequency , P= number of pole in motor) by reason of formula, the 60hz motor speed more faster than 50hz


	6		what is a diode?



	An electric component that conducts electric current in only one direction functioning as a one-way valve. Diodes typically are made from semiconductor materials such as silicon, germanium or selenium and are uses as voltage regulators, signal rectifiers, oscillators and signal modulators/demodulators. In computer equipment, diodes are commonly used to emit light by passing a current through it, as in light emitting diodes (LEDs).


	7		what is function of bridge diode?



	Bridge diode usually use to convert AC into DC at a power supply unit current.


	8		what is np motor?



	It is non-contact clutch type motor. Np is an acronym for needle position, and np motor is able to control needle position.


	9		What is a deffence between Fortuna 3 and Fortuna 4 ?



	The Fortuna 3 is applied to the machine which uses Belt-type motor. And this is made up Belt-type motor and control box. The Fortuna 4 is applied to the machine which uses Direct-type motor. And this is made up Direct-type motor and control box.( The machine for Fortuna 4 - KM-2300)


	10		How should we wet the Fortuna 3 in accordance with machine model ?



	-The Fortuna 3 can be used all sewing machines, and be applied by parameter setting The parameter is B-group 56, operator should set to value in accordance with machine model


	11		What is a deffence between Program Rom and Extension Rom ?



	The Program Rom is written serveral programs to work a sewing machine ( machine control, parameter control and operating program) The Extension Rom is saved designe patten without special programs.When operator transfers extension design , the design data is saved in Extension ROM If operator doesn't transfer extension design, the Extension Rom has nothing . ( Standard : 1201 -> 1~32, 1202 -> 1~33, 1254 -> 1~56) For your reference, the basic pattern design is not saved in Extension Rom. It is saved in Program Rom.


	12		What is common relation between Fortuna 2 and Fortuna 3

SERIES 2

SERIES 3

Period of Production

Feb.,1999 ~ June , 2003

July, 2003 ~

POWER B/D(110V Type)

1. For Fortuna 2 only (110V type)
2. It can not be used on Fortuna 3
3. It can not be used on 220V type

1. For Fortuna 3 only (110V type)
2. It can not be used on Fortuna 2
3. It can not be used on 220V type

POWER B/D(220V Type)

1. For Fortuna 2 only (220V type)
2. It can not be used on Fortuna 3
3. It can not be used on 110V type

1. For Fortuna 3 only (220V type)
2. It can not be used on Fortuna 2
3. It can not be used on 110V type

DIGITAL BOARD

1. For Fortuna 2 only
2. It can not be used on Fortuna 3

1. For Fortuna 3 only
2. It can not be used on Fortuna 2

P/U

1. For Fortuna 2 only
2. It can not be used on Fortuna 3

1. For Fortuna 3 only
2. It can not be used on Fortuna 2

MOTOR

1. For Fortuna 2 only
2. It can not be used on Fortuna 3

1. For Fortuna 3 only
2. It can not be used on Fortuna 2

ENCODER B/D

1. Common use on Fortuna 2 and Fortuna 3

Syncro

1. Common use on Fortuna 2 and Fortuna 3

Pedal

1. Common use on Fortuna 2 and Fortuna 3


	13		What is common relation of Bartack Control Box

Old type
(1999.03 ~2002.01)

New type

Normal type
Fab., 2002 ~ Aug.,2003

PDA TYPE
Sep., 2003 ~

POWER B/D

1. Common use on all bartack control box (only one type)
2. Common use on belt type and direct type
3. Common use on 110V type and 220V type( But, F6 FUSE is defferent 110V type and 220V type : 110V → 7A, 220V → 5A)

DIGITAL B/D
(Belt Type)

1. For old type only (belt type). It can not be used on New type.
2. It can not be used on Derect type
3. BOARD NAME : B-DGT16
4. ROM VERSION : B*11

1. For Normal type only (belt type).It can not be used on Old type.
2. It can be used on PDA TYPE
3. It can not be used on Direct type
4. BOARD NAME : B-DGT21
5. ROM VERSION : B*12, B*13 (ROM can not be used on PDA TYPE)

1. For PDA type only. It can not be used on Old type.
2. It can be used on Normal TYPE
3. It can not be used on Derect type
4. BOARD NAME : DIGITAL REV23(BT-BELT)
5. ROM VERSION : B*15, B*16, B*17, B*18 (ROM can not be used on Normal TYPE)

DIGITAL B/D
(Direct Type)

1. For Normal type only (Direct type).
2. It can be used on PDA TYPE
3. It can not be used on Belt type
4. BOARD NAME : BD-DGT16
5. ROM VERSION : D*13, D*14 (ROM can not be used on PDA TYPE)

1. For PDA type only.
2. It can be used on Normal TYPE
3. It can not be used on Belt type
4. BOARD NAME : DIGITAL REV18(BT-DIR)
5. ROM VERSION :D*15, D*16, D*17, D*18(ROM can not be used on PDA TYPE)

MMD B/D(Belt Type)

1. Common use on all bartack control box of Belt type
2. It can not be used on Direct type

MMD B/D(Direct Type)

1. Common use on all bartack control box of Direct type
2. It can not be used on Belt type

XY B/D (For 2A step motor)

1.Common use on all type Common use on Belt type and Direct Type
2. It can not be used on 3A step motor type
3. BOARD NAME : BH-XYD11
4. Machine model : 1201M, 1201H, 1201HA, 1202, 1254, 1263 (After March, 2004, it was applied all Machine model (included SPS-1201L and SPS-1201K)

XY B/D (For 3A step motor)

1. Common use on all type Common use on Belt type and Direct Type
2. It can not be used on 2A step motor type
3. BOARD NAME : B-XY17
4. Machine model : 1201L, 1201K (After March, 2004, it was applied all Machine model (included SPS-1201L and SPS-1201K. So, it is made only for A/S)

OP BOX

1. Common use on all type Common use on Belt type and Direct Type


	14		What is common relation of Pattern Control Box

Belt type

Direct type

POWER B/D

1. Common use on all type
2. Common use on 110V type and 220V type ( But, F6 FUSE is defferent 110V type and 220V type : 110V → 7A, 220V → 5A)
3. Common use on SPS-1306 machine and SPS-1811 machine.( But, F4 FUSE is defferent SPS-1306 machine and SPS-1811 machine : SPS-1306 → 5A, SPS-1811 → 8A)

IO/CPU

1. Common use on Belt type and Direct type.
But, setting of DIP Switch is defferent Belt type and Direct type.
(Belt type : 5 pin is ON, Direct type : 3 pin, 4 pin and 5pin are ON.)
2. There are two type in accordance with machine model.
1) Board name : Digital REV21A (PT-IO)Machine model : SPS-1306, SPS-1811, SPS-2516, SPS-5030
2) Board name : Digital REV22 (PT-IO)Machine model : SPS-5050, SPS-8050

MMD B/D

1. For Belt type only (SPS/A-1306, SPS/A-1811, SPS/A- 2516).It can not be used on Direct type.
2. SPS/A-5030 machine have to order MMD board for SPS/A-5030 because of defference the CPU program.

1. For Belt type only. It can not be used on Direct type.
2. Common use on all Direct type. But, setting of DIP Switch is defferent in accordance with machine model.
1) SPS-1306, SPS-1811, SPS-2516, SPS-5030 : all pins are OFF
2) SPS/B-5050, SPS/B-8050 : 3 pin is ON.)

XY B/D

1. Common use on Belt type and Direct type.
2. There are three types in accordance with machine model.
1) Board name : SDB REV16(PT-1306)Machine model : SPS-1306
2) Board name : SDB REV11(PT-1811)Machine model : SPS-1811, SPS-2516
3) Board name : SDB REV18(PT-1811)Machine model : SPS-5030

OP BOX

1. Common use on all type.


	15		What is common relation between KM-2070 and KM-2070P control box.

KM-2070

KM-2070P

POWER B/D
(110V/220V)

1. Common use on all type.
2. Common use on 110V type and 220V type
3. It Can not be used on 380V type

POWER B/D
(380V)

1. Common use on all type.
2. It Can not be used on 110V type and 220V type.

MMD B/D

1. Common use on all type.
2. It is same the MMD board of Bartack machine.

DIGITAL B/D

1. For KM-2070 only.
It can not be used on KM2070P.

1. For KM-2070P only.
It can not be used on KM2070.

XY B/D

1. For KM-2070 only.
It can not be used on KM2070P.

1. For KM-2070P only.
It can not be used on KM2070.

OP BOX

1. Common use on all type.


	16		What is common relation between BH-3000 and BH-6000 control box.BH-3000 과 BH-6000

POWER B/D
(110V/220V)

1. Common use on all type.
2. Common use on 110V type and 220V type
3. It Can not be used on 380V type

POWER B/D
(380V)

1. Common use on all type.
2. It Can not be used on 110V type and 220V type.

MMD B/D

1. Common use on all type.

DIGITAL B/D

1. For BH-3000 only. It can not be used on BH-6000

1. For BH-6000 only. It can not be used on BH-3000

XY B/D

1. Common use on all type.
But, setting of DIP Switch and Jumper Cap are defferent BH-3000 and BH-6000.
1) Dip Switch : BH-3000 → 3pin is ON BH-6000 → 1pin is ON
2) Jumper Cap : BH-3000 → 2pin - 3 pin BH-6000 → 1pin - 2pin


	17		How many kinds of synchronizers are in servo motor ?



	-There are three synchronizers in a servo motor. 1) Inside type : It checks the UP/DOWN magnetics in a machine pulley. 2) Outside type : It checks the UP/DOWN film . 3) Other Company type : It checks the UP/DOWN film .


	18		What does solenoid 'FULL ON TIME' and 'DUTY RATE' mean?



	-A solenoid could be overheated if input voltage of solenoid is supplied continuously while operating a solenoid. Therefore, when someone is trying to operate a solenoid, it would be much better that someone supplies the input voltage at the starting point of operating, then supplying the minimum amount of the voltage which can afford to operate a solenoid. When Input voltage suplies steadly after starting point is called FULL ON TIME. After that, the appropriate amount of the decreased supplied volt is called DUTY RATE. For example, that FULL ON TIME in a servo motor is 100ms and DUTY RATE is 20% means a solenoid is supplied with 40V during the point when the solenoid is starting to operate to 100ms then, 20% of 40V, the solenoid is supplied with 8V. If you increase FULL ON TIME and DUTY RATE in a solenoid, the power of the solenoid will be increase. However, if solenoid is overheated, so you decrease the FULL ON TIME and DUTY, the power of the solenoid will be decrease. Therefore, you should set the appropriate FULL ON TIME and DUTY RATE level.


	19		I'd like to know 'Program Rom Version' in the digital board, Batack

MACHINE MODEL

BELT-TYPE

DIRECT-TYPE

SPS-1201H

BH**

DH**

SPS-1201M

BM**

DM**

SPS-1201HA

BA**

DA**

SPS-1201K

BK**

DK**

SPS-1201L

BL**

DL**

SPS-1201M(HP)

BP**

DP**

SPS-1202

BB**

DB**

SPS-1254

PA**

SPS-1263

TA**