Thread clamp¶

Functions:

The timing of the electronic clamp’s action is determined by parameter O29 and is divided into three cases:

At seam start

Switch on at position set by D07, switch off at position set by D08.

Action only during the first stitch, reset after thread trim.
At turning back

Switch on during turning back, the Max. permissible time is set by T15 to protect from damage.
At sewing foot lifting

Switch on during foot lifting, the Max. permissible time is set by T15 to protect from damage.

Quick reference¶

This table summarizes which parameter should be used for clamp:

Parameter	Authority	See also
Thread Clamp	Operator	`A10`
Thread Clamp Limit Time	Technician	`T15`
Thread Clamp option	Technician	`A29`
Switch-on angle	Technician	`D07`
Switch-off angle	Technician	`D08`
PrePressure duiring Clamp	Technician	`O42`
Duty cycle after full power	Developer	`O48`

Parameter List¶

A10¶

-Max: 1
-Min: 0
-Unit: –
-Description: Thread clamp:

0 = Off;

1 = On.

T15¶

-Max: 1000
-Min: 1
-Unit: ms
-Description: Switch-on duration for the thread clamp during foot lift or needle bar positioning.

A29¶

-Max: 3
-Min: 0
-Unit: –
-Description: Thread clamp option:

0 = At seam start only;

1 = At seam start and during turn back;

2 = At seam start and during sewing foot lift;

3 = At seam start, during turn back and sewing foot lift.

D07¶

-Max: 359
-Min: 0
-Unit: 1°
-Description: Switch-on angle for thread clamp at seam start.

D08¶

-Max: 359
-Min: 0
-Unit: 1°
-Description: Switch-off angle for thread clamp at seam start.

O42¶

-Max: 1
-Min: 0
-Unit: –
-Description: Reduce the sewing foot pressure during the clamping cycle:

0 = Off;

1 = On.

O48¶

-Max: 100
-Min: 0
-Unit: %
-Description: Thread clamp: Duty cycle [%] in time period t2 .