Stroke adjustment

Depending on the equipment, the machine has can be used to sew two different storke heights, and it can be activated with a press of button.

Speed Limitation via adjusting wheel

If additional components are installed within the stroke adjustment wheel, the system will automatically limit speed when adjusting the wheel. Parameter O85 is used to set the component type. If set to 0, no speed limit applies when adjusting stroke using the wheel.

There are two types of components used for speed limiting:

Switch

Set O85 to 1.

Gear speed limiter, if two switches are installed, it will have four gears.

Potentiometer

Set O85 to 2.

The sew speed is continuously adjustable, The system maintains the full programmed speed until a certain stroke height is reached As the stroke height continues to increase, the maximum sewing speed will decrease linearly.

Important

Ensure that the larger the stroke level, the smaller the potentiometer sampling value.

Set maximum speed using parameter S10

Set minimum speed using parameter S14

Set sample value of upper break point using parameter O21, stroke level up to which full speed is to be maintained

Set sample value of upper break point using parameter O22, stroke level from which minimum speed is to be effective

Correspondence between sampling value parameters and speed parameters

Speed Limitation during quick stroke adjustment

If parameter A35 set to 1, when 2nd sewing foot stroke is activated, the speed is reduced down to the desired value of 2nd sewing foot stroke which set by S15.

Quick Stroke Auto-Reset Stitches

if A32 is not 0, when switching to 2nd sewing foot stroke, after sewing N stitches set by A32 , the second sewing foot stroke is automatically deactivated.

Quick reference

This table summarizes which parameter should be used for stroke:

Parameter	Authority	See also
Stroke	Operator	A45
Stroke Limit Level 1	Technician	S09
Linear Limit Start	Technician	S10
Stroke Limit Level 2	Technician	S11
Stroke Limit Level 3	Technician	S12
Stroke Limit Level 1	Technician	S13
Linear Limit End	Technician	S14
Max. Stroke Speed Limit	Technician	S15
Quick Stroke Auto-Reset Stitches	Technician	A32
Quick Stroke Adjustment Status	Developer	A24
Quick stroke adjustment auto speed limit	Operator	A35
Sample value of upper speed break point	Technician	O21
Sample value of lower speed break point	Technician	O22
Full power duration	Developer	O76
Duty cycle after full power	Developer	O77
The Stroke Height Sensor Type	Developer	O85

Parameter List

A45

-Max

1

-Min

0

-Unit

–

-Description

Sewing foot stroke:

0 = Off;

1 = On.

S09

-Max

4500

-Min

50

-Unit

spm

-Description

Switch Type: Speed limit for stroke height level 1.

S10

-Max

4500

-Min

50

-Unit

spm

-Description

Potentiometer Type: Limit speed at the start of linear reduction.

S11

-Max

4500

-Min

50

-Unit

spm

-Description

Switch Type: Speed limit for stroke height level 2.

S12

-Max

4500

-Min

50

-Unit

spm

-Description

Switch Type: Speed limit for stroke height level 3.

S13

-Max

4500

-Min

50

-Unit

spm

-Description

Switch Type: Speed limit for stroke height level 4.

S14

-Max

4500

-Min

50

-Unit

spm

-Description

Potentiometer Type: Limit speed at the end of linear reduction.

S15

-Max

4500

-Min

50

-Unit

spm

-Description

Safety speed limit at the maximum stroke height.

A24

-Max

1

-Min

0

-Unit

–

-Description

Activation status of the Quick Stroke Adjustment, read only.

A32

-Max

99

-Min

0

-Unit

stitches

-Description

Number of stitches for automatic switch off the 2nd stroke:

0 = Manual;

Not 0 = Number of stitches after which quick stroke adjustment is automatically deactivated.

A35

-Max

1

-Min

0

-Unit

–

-Description

Limits maximum speed automatically during quick stroke adjustment:

0 = Off;

1 = On, if the second stroke is activated, speed reduced down to Parameter S15 .

O21

-Max

4095

-Min

0

-Unit

–

-Description

Sample value of upper break point, stroke level up to which full speed is to be maintained.

O22

-Max

4095

-Min

0

-Unit

–

-Description

Sample value of upper break point, stroke level from which minimum speed is to be effective.

O76

-Max

999

-Min

1

-Unit

ms

-Description

Stroke height: Activation duration in time period t1 (100% duty cycle).

O77

-Max

100

-Min

1

-Unit

%

-Description

Stroke height: Duty cycle [%] in time period t2 .

O85

-Max

2

-Min

0

-Unit

–

-Description

Type of stroke adjustment sensor:

0 = No;

1 = Switch;

2 = Potentiometer.