- AB620A5035
- 31 -
Function
with
control panel
V810
V820
Function "ornamental backtack" On/Off
Ornamental backtack stop time
Single end backtack
Double end backtack
End backtack Off
(SrS)
(tSr)
Left-hand arrow above
key On, right-hand arrow
above key On
Both arrows Off
135
210
Key 2
135
210
Key 4
The parameters of the end backtack speed and the backtack stitches forward / backward are identical with the
standard end backtack.
Difference from the standard end backtack:
The drive stops for stitch regulator switching
The stop time can be set
When using the V820 control panel, direct access by means of the function key (key 9) is possible!
Function
with
control panel
Parameters
Ornamental backtack On/Off
(-F-)
008 =2
7.8 Intermediate Backtack
Upon pressing an external key according to the pre-selection of parameters
240...246
, the backtack solenoid
can be switched on anywhere in the seam and at standstill.
Function
with
or
without
control panel
Parameters
Counted manual backtack On/Off
Speed of manual backtack
Ornamental backtack On/Off
Manual ornamental backtack speed
Speed status for manual backtack
(chr)
(n13)
(SrS)
(n9)
(Shv)
087
109
135
122
145
The speed function for the manual backtack can be set using parameter
145
.
145 =0
Speed controllable by the pedal up to the set maximum speed (Parameter
111
)
145 =1
Fixed speed (Parameter
109
) without influence by the pedal (machine stop by pressing the pedal
to the basic position)
145 =2
Limited speed controllable by the pedal up to the set limit (Parameter
109
)
Intermediate backtack (Parameter 135 = 0):
Backward sewing with speed limitation according to the setting of parameter 109 is performed when the key is
held down.
Intermediate ornamental backtack (Parameter 135 = 1):
By pressing the key in the seam, the drive stops and the backtack solenoid is activated. The speed limitation n9
according to the setting of parameter 122 is effective during the entire intermediate backtack operation.
Backward sewing is performed when the key is held down and the stitches are counted. When the key is
released, the drive stops, the backtack solenoid is switched off and a forward seam is performed according to
the counted stitches after the ornamental backtack stop time. After that the speed limitation is released.
Moreover, the number of stitches for each type of backtack can be selected using Parameter
087
.
087 = 0 Stitches
Normal manual backtack
087 = 1...255 Stitches
Manual backtack with counted backtack
Intermediate backtack (Parameter 135 = 0) with counted backtack section (Parameter 087 = >0):
During manual backtack the speed is n13 (Parameter 109). According to the setting of parameter 145 it is pedal
controlled, fixed or limited.
Intermediate ornamental backtack (Parameter 135 = 1) with counted backtack section
(Parameter 087 = >0):
After the button is pushed, the drive stops in position 1. The locking magnet is switched on. After the ornamental
backtack stop time (Parameter 210) has elapsed and the pedal has been pressed forward, the drive runs until
counting (Parameter 087) has been completed. The drive stops again in position 1. The backtack solenoid is
disabled, and the time set using parameter 210 elapses. Then the seam section forward is repeated. The
sequence is performed at speed n9 (Parameter 122).
Содержание AB620A5035
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