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5.2.1 Setting of parameters without the panel V810/V820
The procedure is identical as with the panel V810/V820, only the representation on the display having only 3 digits is different.
In this way, the numerical values of parameters containing more than 3 digits (e.g. 2000 rev/min being represented as 200) are
shortened. The parameter number is displayed with three digits with three decimal points to differ it from the value of the
parameter displayed without points.
Procedure of changing parameters without the panel V810/V820
- depress the button P and then switch on the network switch on the front side of the electronics box, the display will show Cod
- depress the button », the 1
st
digit blinks
- using the button + and -, set the 1
st
digit to the value 3
- depress the button », the 2
nd
digit blinks
- in the same way, set the 2
nd
and the 3
rd
digits, so that the display shows 311 (the code number for the access to all parameters)
- depress the button E, the display will show 2.0.0 (parameter number 200)
- using the buttons », + and -, set the required parameter number and depress the button E, the display will show the parameter
value
- using the buttons + and -, set the required parameter value
- depress the button E (the following parameter number will be displayed) or the button P (the original parameter number will be
displayed)
- proceed to the termination of changes by depressing the button P (you will leave the programming mode) and you will return
into the sewing mode
Note: To store the change in memory permanently, it is necessary to tread the pedal forward (sewing of at least one sticth) before
switching of the network switch.
5.2.2 Setting of positions
The mechanical connection of the motor with the sewing machine is enabled by an indented belt with the gear speed ration of
1:1.This ensures constant angular ratios between the motor rotor and the sewing machine. The hand wheel synchronizer replaces
the synchronizer, which is built-in in the motor. When removing for any reason the indented belt, a new setting of the correct
angular ratio between the motor and the sewing machine, the so-called reference position, is necessary.
Procedure
- set the parameter number 170, depress the button E
- the display will show Sr1
- depress the button », Po will be displayed (the symbol o is rotating)
- turn the handwheel, until the rotating symbol o disappears and P is displayed
- turn now the handwheel to the value of the angle 105° (the needle point is at the level of the throat plate)
- depress 1x the button P
- set the parameter number 171, depress the button E
- the display will show Sr2
- depress the button », 1E 115 will be show
- using the buttons + and -, set the value 25 (the 1
st
position of the needle, 135° on the hand wheel)
- depress 2x the button E, 1A 175 will be show
- using the buttons + and -, set the value 85
- depress 2x the button P (return into the sewing mode)
5.2.3 Setting of the parameter of the microswitch of the running blocking when tilting the machine
For the purpose of enhancing the safety of the operator of the machine and when unintentionally treading the pedal, the motor
running is blocked. To get a correct working of this function, it is necessary to mount a microswith (which is component part of
the interconnecting cable) on the rear side of the oil tray and to set the parameter 282 to the value 1 . When the machine head is
in its working position, the microswitch must be switched on. The microswitch can be set when bending its lever.
5.2.4 Setting parameters for reducing the pressure of the presser foot when stopping
The electromagnet serving for lifting the presser foot may dispose also of a function for reducing the pressure or for lifting
slightly the preser foot when turning the sewn upper parts after having stopped in the seam or when the machine is running. This
command can be given by the operator by depressing the first button to the right on the button panel or by foot (microswitch of
the knee lever). This function needs setting of the following parameters:
Parameter Parameter
number value
250 12 function of reducing the presser foot pressure
332 1 the setting 333, 334 holds
333 *40 time in ms of max. current of the presser foot electromagnet
334 *60 retaining force of the presser foot electromagnet
* the values are only approximative ones and depend on the set up pressure of the presser foot and on the material thickness