Instruction manual
Table Of Contents
- Range of Applications
- Scope of Supply
- Operation
- Putting into Service
- Setting the Basic Functions
- Functions and Settings
- First Stitch after Power On
- Softstart
- Sewing Foot Lifting
- Sewing Foot Pressure Reduction
- Start Backtack
- End Backtack
- Start and End Backtack with Switch-On and Switch-Off Delay
- Start Ornamental Backtack
- End Ornamental Backtack
- Multiple Backtacking
- Catch backtacking
- Intermediate Backtack
- Backtack Suppression/Recall
- Holding Power of the Stitch Regulator Solenoid
- Reverse Motor Rotation
- Machine Run Blockage (Safety Switch)
- Thread Monitor
- Input Signals
- Parameter 195 = 0 – No Thread Monitor Function
- Parameter 195 = 1 – Model 270 / No Stop / Sewing Foot Down after Seam End
- Parameter 195 = 2 – Model 767, N291 / With Stop / Sewing Foot Up after Seam End
- Parameter 195 = 3 – Model 767, N291 / With Stop / Sewing Foot Down after Seam End
- Parameter 195 = 4 – With Thread Monitor Stitch Counting
- Needle Cooling
- High Lift for Walking Foot
- Manual High Lift for Walking Foot – Speed Limitation
- Maximum High Lift for Walking Foot by Using a Key
- High Lift for Walking Foot Operational Mode Not Stored(Pa. 138 = OFF, Pa. 184 = 0)
- High Lift for Walking Foot Operational Mode Stored (Pa. 138 = ON)
- High Lift for Walking Foot Operational Mode Not Stored with Minimum Number of Stitches (Pa. 138 = OFF, Pa. 184 = >0)
- Speed Limitation
- Switch Stitch Length
- Roller
- Thread Clamp
- Thread Trimming Operation
- Seam with Stitch Counting
- Free Seam and Seam with Light Barrier
- Light Barrier
- Needle Up/Down / Single Stitch
- F1/F2 Function Key Assignment on the V810/V820 Control Panels
- Signal Output Position 2
- Signal Output 512 Impulses per Rotation
- Actuator
- Acoustic Signal
- Master Reset
- Input and Output Function Test
- Error Displays
- Operating Elements of the V810 Control Panel
- Operating Elements of the V820 Control Panel

EFKA DA82GA3312
17
Changing the number of compensating stitches
If stitch counting and light barrier are to be On at the same time, the number of stitches for a seam with counting must be
programmed before the light barrier compensating stitches.
After programming the functions
Seam is entered;
the next seam is displayed.
The seam is entered by pressing key E or by heelback.
End of programming !
The first seam section to be executed
in the selected pattern is displayed.
After all seams have been programmed, each seam can be called again with the E key for checking.
Note
Several seam patterns cannot be programmed successively without interruption. Each pattern must be completed with
the P key; otherwise it gets lost.
Note
The patterns are permanently saved only after you have started sewing.
3.7.5 Detailed Example
A seam 1 with stitch counting and double start backtack, a seam 2 with stitch counting and a seam 3 with light barrier, end
backtack and thread trimmer are to be programmed under pattern number 4.
Display before programming
1
LC display is cleared
Display of a parameter
2
at the operator level
↓
↓↓
↓
Lefthand arrow above key 0 blinks.
3
Pattern 1, seam 1
↓
↓↓
↓
Lefthand arrow above key 0 blinks.
4
Pattern 2, seam 1
↓
↓↓
↓
Lefthand arrow above key 0 blinks.
5
Pattern 3, seam 1
↓
↓↓
↓
Lefthand arrow above key 0 blinks.
6
Pattern 4, seam 1
↓
↓↓
↓
Lefthand arrow above key 1 blinks.
7
Number of stitches for the start backtack
section backward is displayed. Vary the
number of stitches using the +/- key.
+
-
E
2 02 - - -
P
2 01 004 007
E
aaa bbb
0 1 01 - - -
0 2 01 - - -
XXXX
P
0 3 01 - - -
0 4 01 - - -
1 4 01 - - - 03