13
Symbol O
Machine is running
Symbol P
Automatic revolutions ON
Symbol Q
Left needle disconnected
The arrows on the display indicate switching the functions
which are displayed by symbols above the pushbuttons on.
7.2.2.1 Adjustment by means of buttons with fixed setting
function
Note:
It is important to finish the seam in order to reach
effective button pressing (press the treadle fully backwards
down).
Setting start bar:
Drive enables sewing start bar automatically. It is necessary to
choose the type (single, double, off) and number of stitches
which will be sewn forwards and backwards.
The arrow above its symbol shows the type of bar (chosen by
gradually pressing pushbutton 1). It will be displayed follow-
ing after pressing pushbutton 1.
Arv (SAv) XXX - number of stitches of start (fancy) bar for-
wards or
Arr (SAr) XXX - number of stitches of start (fancy) bar back-
wards for about 3 sec.
At this time you can change the number of stitches by gra-
dually pressing the push or -.
By setting the treadle to its zero position during the sewing of
the start bar (par. 215 - OFF), you stop the machine at the
completion of the start bar. You can then switch on the sewn
work cutter.
Setting end bar:
The same applies to the start bar (setting by the means of
pushbutton 4).
Erv (SEv) XXX - end (fancy) bar number of stitches forwards
Err (SEr) XXX - end (fancy) bar number of stitches backwards
Note:
The last section of end bar must have at least 3 stitches.
Foot position adjustment by stopping at the seam (by neutral
position of treadle) and after finishing seam (by neutral posi-
tion of treadle):
Setting is by means of pushbutton 6, arrow indication above
the corresponding symbol.
Needle position adjustment by stopping at the seam:
Setting is by means of pushbutton 7.
Trimming switched ON/OFF:
To be set using pushbutton 5.
Sewing programme ON:
To be switched on using pushbutton 0.
Switching ON/OFF the function of the pushbutton F:
The pushbutton F on panel can have assigned one of the
following functions: Sst - softstart
SrS - fancy bar
Frd - reverse angle after trimming
7.2.2.2 Setting by means of parameters
Drive memory contains the parameters which enables sewing
system tuning. These parameters have exact meaning and
they are divided into 3 levels. Further parameters which are
available only for operation will be quoted. Each parameter
has its (sequence) number and value.
General procedure by changing parameters of operation level:
- switch the main switch on or finish the seam by pressing the
treadle fully backwards down
- press pushbutton P on the panel V 820
- on the display there is no data shown
- by depressing the pushbutton E several times, set the
required parameter (without having displayed the parameter
number)
A
B
C D E
F G H I J K L M N O P Q
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