p Automatic terminal reverse stitching solenoid OFF timing correction
Make
this correctionasshownin
Table
4-13
using
a combination of
SW6-7
(ACT
D),SW6-1
(HOSD
0) and
SW6-2(HOSD 1).
Table
4-13
ACTD
HOSDO
HOSDl
Correction
ON
OFF
OFF
-1
ON
ON
OFF
-0.5
OFF
ON
or
OFF
ON
of
OFF
0
ON
OFF
ON
0.5
ON
ON
ON
1
Fig.
4-17
Example1)
With
the setting in Fig.4-4, there are too manystitches in the
reverse
direction.
a)
b)
c)
a) The
pitch
of
the first forward
stitch
is
too
short.
b) The needle enters the same
point
twice at
the
change
from
forward
to
reverse.
c) There are
too
many stitches
in
the
reverse
direction.
-
These
situation
can
occur
when
the
reverse stitching
speed is
too
fast.
Fig.
4-18
In such a casereset so that the reverse feed solenoid goes OFF sooner
(-
direction).
Example 2) With the setting in Fig. 4-4 there are too few stitches in the reverse direction.
Fig.
4-19
a) The pitch
of
the last stitch
in
the
reverse
direction
is
too
short.
b) The needle enters the
same
point
twice
at
the
change from forward to
reverse.
c) There are
too
many
stitches
in
the
forward
direction.
-
These
situations
can
occur
when
the
reverse stitching
speed
is
too
slow.
In such a caseresetso that the
reverse
feed solenoidgoes
OFF later (+ direction).
Note) Since the automatic terminal reverse stitching solenoid ON timing is such that actuation is done
from low speed, and on a command from free sewing, corrections are
not
made.
43
-
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