Instruction manual

Instruction Manual
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Resetting the stitch counter (A, B, or C)
Short actuation of the key (<1 sec.) sets the currently selected stitch counter to the value selected with the
parameters 086, 087, or 088.
Sequence with thread monitor function turned on
During sewing, the counter value is decremented with each stitch, and the remaining number of stitches
displayed.
Once the end of the countdown is reached, the V810 indicates the left bobbin with the C symbol or D for the
right bobbin. On the V820/V850, the end of the countdown is indicated by flashing of the symbols for the left
and/or right bobbins on the display instead of the model designation. In addition, the LEDs provided for this
function on the machine flash (flash frequency 4 Hz).
The drive stops.
Automatically sequenced seam sections such as seams with stitch counting or light barrier seams will be
interrupted, except for the start and end backtacks. After the pedal is in the 0 position and a subsequent
forwards actuation, the seam can be continued.
It is necessary to adjust the number of stitches in such a way that the bobbin content is not completely
exhausted by the end of the count.
After replacing the bobbin, a short press on the key indicated above will reset the thread monitor counter to the
starting value.
The counter value remains stored after power--off and continues the the thread monitor count after power is
restored.-
On the display of the controller, there is no display for the thread monitor.
6.16 Needle cooling / undercutter
Function with or without control panel
Parameter
Needle cooling On/Off
Switching speed for needle cooling on/off
Power-off delay of needle cooling after stop
Needle cooling / undercutter function
(nk)
(nnk)
(dnk)
(Fnk)
095
120
183
185
Parameter 185 can be used to program the function of the needle cooling / undercutter output.
185 = 1
Needle cooling is turned on during the entire sewing process. The power-fulfillment can be
delayed after the stop (parameter 183).
185 = 2
The undercutter output is turned on when the pedal is pushed forward.
185 = 3
Needle cooling is turned off depending on the speed. The switching speed provided for this can be
adjusted with parameter 120.
When using the V820/V850 control panel, direct access by means of the function key (key 9) is possible.
Function with control panel
Parameter
Needle cooling On/Off
(-F-)
008 = 4
6.17 Function modules for outputs A / B / C
The function modules A / B / C are used for the flexible programming of function sequences.
The modules are each assigned one input, one output, and one LED. A signal on the inputs to the module
influences, in addition to the reaction to the outputs assigned to them according to the table, things including the
seam sequence, backtack, and speed limitation.
Module
A
B
C
Input / socket
in4 / A/8
in1 / A/7
in7 / A/9
Output / socket
M6 / A/30
M16 / A/20
M30 / A/15
LED (Output) / socket
M10 / A/29
M11 / A/31
M18 / A/22
6.17.1 Function module A - no function
 Parameter 250 = 0, function module for output A is turned off.