Instruction manual

Instruction Manual
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6.4.6 Backtack Synchronization
Function with or without control panel
Parameter
Backtack synchronization for the end backtack on/off
Backtack synchronization speed
(nSo)
(nrS)
123
124
If parameter 123 is on, the backtack speed will be switched to backtack synchronization speed one stitch before
engaging and disengaging of the backtack solenoid. The backtack speed is released at the next position 2. If
the synchronization speed that can be set by means of parameter 124 is higher than the backtack speed, the
latter is maintained. Backtack synchronization applies only for the end backtack.
6.5 Start ornamental backtack
Function without control panel
Control
Single start ornamental backtack
Double start ornamental backtack
Start ornamental backtack Off
Segment 1 on
Segment 2 on
Both segments off
key E (S2)
Function with control panel
V810/V820/V850
Single start ornamental backtack
Double start ornamental backtack
Start ornamental backtack Off
left-hand arrow above key On
right-hand arrow above key On
both arrows Off
Key 1
Function with or without control panel
Parameter
Ornamental backtack stitch count forwards
Ornamental backtack stitch count backwards
Start backtacking speed
Function "ornamental backtack" On/Off
Start delay after disabling the sewing foot lifting signal
Ornamental backtack stop time
Last selected forward section on start ornamental backtack on/off
(SAv)
(SAr)
(n3)
(SrS)
(t3)
(tSr)
(Zrv)
080
081
112
135
202
210
215
The abbreviations set in parentheses ( ) are only visible if a V820/V850 control panel is connected!
Difference from the standard start backtack:
 The drive stops for stitch regulator switching
 The stop time can be set
 After the backwards section of the backtack, there is another forwards backtack section with the same stitch
count as the previous backward section, corresponding to the setting of parameter 215.
 The stitch count of the ornamental backtack can be set with separate parameters.
Parameter 137 can be used to select the stitch length (normal or long stitch) during the backtack. The display
does not light up during the backtack.
137 = 0
The backtack is executed with a long stitch length.
137 = 1
The backtack is executed with a normal stitch length.
When using the V820/V850 control panel, direct access by means of the function key (key 9) is possible.
Function with control panel
Parameter
Ornamental backtack On/Off
(-F-)
008 = 2