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Indication
Indication
(18) Feed control
Function No. : 029
Function : Setting of the synchronized control of the sewing machine and the
X-Y feed
Item : 1 Setting of the sewing pitch to the sewing speed
(Set level 1)
0
[Contents] 2500 r.p.m. / 3.0 mm : Initial setting
1
[Contents] 2000 r.p.m. / 3.0 mm
2
[Contents] 1700 r.p.m. / 3.0 mm
3
[Contents] 1300 r.p.m. / 3.0 mm
Item : 2 Selection of the feed timing
(Set value 1)
-4 to 9
[Contents] The feed start timing can be advanced by -4 to 9 TG pulses
(in a unit of 8˚) so as to adapt to the maerial thickness.
-4 : Retards
9 : Advances
(Thin materials)
(Thick materials)
(0 : Initial setting)
[Explanation]
The X – Y feed is controlled on the basis of the basic signal of feed and the
tachometer generator signal (TG). In case of the feed pulse, the feed finishes
feeding earlier by 2 pulses of TG signal of the next feed base pulse.
By this set value, the finish of the feed can be set so as to finish earlier.
Accordingly, the feed can finish the feeding when the needle is in a higher
position than the standard state.
However, when the time of the feed moving is full such as 2,500 r.p.m. / 3.00
mm or excessive sewing pitch, this setting will be ineffective.To make this
setting effective, it is necessary to reduce the sewing speed in the item 1 :
setting of the sewing pitch to the sewing speed.
L o c u s o f
needle bar
Basic signal of
feed
Tachometer
generator signal(TG)
Feed pulse
(Set value : “0”)
X-Y feed pulse
(Set value : 5)
125˚
100˚
69˚
(2TG)
The feed finishes earlier by
2TG + 5TG, namely 7 TG)
