Needle cooling¶

Needle cooling can assist in cooling the needle to avoid damage to the sewing material and breakage of the upper thread.

Functions:

Above the speed set by S18, the needle cooling start;

Below the speed set by S18, the needle cooling does not stop immediately, needle cooling to continue until the time setted by T16 has elapsed.

During the follow-up time, if the speed exceeds S18 again, the needle cooling start again.

Quick reference¶

This table summarizes which parameter should be used for needle cooling:

Parameter	Authority	See also
Needle Cooling	Operator	`A48`
Needle Cooling Speed	Technician	`S18`
Needle Cooling Follow-on Time	Technician	`T16`
Full power duration	Developer	`O93`
Duty cycle after full power	Developer	`O94`

A48¶

S18¶

-Max: 4500
-Min: 50
-Unit: spm
-Description: The needle cooling is activated when sewing speed exceeds this value.

T16¶

-Max: 10
-Min: 0
-Unit: s
-Description: Switch-off delay for the needle cooling after the sewing speed drops below the threshold.

O93¶

-Max: 999
-Min: 1
-Unit: ms
-Description: Needle cooling: Activation duration in time period t1 (100% duty cycle).

O94¶