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[2] Technical explanation
Sewing speed Max. sewing speed in high speed operation ................ For straight stitching ......................................................... 850 ± 50 rpm
Low sewing speed in high speed operation .................For bobbin winding ...........................................................750 ± 50 rpm
Max. sewing speed in medium-high speed operation ..For zigzag pattern .............................................................700 ± 50 rpm
Max. sewing speed in medium speed operation .......... For embroidering (at medium speed) ............................... 410 ± 10 rpm
Low sewing speed in medium speed operation ...........For key hole buttonholes, lateral feed patterns, etc. .........300 ± 10 rpm
High sewing speed in low speed operation ..................For embroidering (at low speed) ....................................... 245 ± 10 rpm
Low sewing speed in low speed operation .............................................................................................................. 115 ± 10 rpm
Extra low speed operation .........................................................................................................................................70 ± 10 rpm
™ In case of embroidering, the sewing speed automatically changes over according to travel amount of X-feed and Y-feed of embroidery STMs regardless of the slide
controller. (800, 750, 410 and 245 rpm) Max. sewing speed (800 rpm) is limited according to the position of slide variable resistor.
Start/stop of sewing machine by means of the start/stop switch
(Hereinafter the start/stop switch is called S/S SW.)
™ When a pattern has not been specified, the machine will not start even by turning ON the S/S SW. In this case, the relevant error message will be given with a buzzer.
™ When the S/S SW is used to stop the machine, the machine stops with its needle down in the normal stitching or with its needle up in embroidering.
Sewing speed
(At the time of starting the machine) ........................................................................ (At the time of stopping the machine)
Start/stop of sewing machine by means of the controller
™ Depress the controller to start the sewing machine. Release the controller to stop it.
™ When the controller is depressed for the first time after turning ON the powwer to the machine, the machine starts with the soft start function. When the controller is
depressed for the second time and beyond, the sofy start function does not work.
™ After the machine has started with the soft start function, the sewing speed gently increases according to the depressing depth of the controller.
™ The sewing machine stops with its needle down if detaching the controller from the receptacle while the sewing machine is turned by operating the controller.
™ While the controller is used, it is impossible to start the sewing machine using the S/S SW. (The switch can be used to stop the sewing machine.)
™ The controller is ineffective during embroidering.
850
750
525
375
115
rpm
Soft
Sewing speed
start
gently increases.
For embroidering (at high speed) ..................................... 800 ± 50 rpm
When bartacking buttonholes on both sides ..................... 525 ± 15 rpm
For patterns which are to be sewn with the needle bar disengaged.
Low speed (approx. 115 rpm)
Extra low speed
Stop
S/S SW
4
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