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
25
Note
When setting the positions by turning the handwheel, make sure that the displayed numerical value changes.
The setting values of the positions are programmed in the factory. After setting the reference position the machine is
ready for use. Changing these settings is necessary only on non-standard machines or for fine tuning.
The display unit of the set position is steps (increments).
One rotation of the handwheel corresponds to 512 steps.
The display changes in steps of 2.
A change from one value to the next thus corresponds to approx. 1.4 angular degrees.
5.4 Positioning Speed
Functions Parameter
Positioning speed (n1) 110
The positioning speed can be set using parameter 110 on the control within a range of 70...390 RPM.
5.5 Maximum Speed Compatible with the Sewing Machine
The maximum speed of the machine is determined by the selected pulley and by the following settings:
Set the maximum speed using parameter 111 (n2)
Set the maximum speed limitation to the specific level according to the application as described in chapter "Direct
Input of Maximum Speed Limitation (DED)".
5.6 Maximum Speed
Functions Parameter
Maximum speed (n2) 111
Note
See instruction manual of the sewing machine manufacturer for the maximum speed of the sewing machine.
Note
Select the pulley such that the motor runs at approx. 4000 RPM with max. number of stitches.
5.7 Display of the Signal and Stop Positions
Functions Parameter
Display of positions 1 and 2 (Sr3) 172
The position settings can easily be checked using parameter 172. The function is possible only if sewing has already
been started.
Select parameter 172
The control panel display shows "Sr3"
Turn handwheel according to the direction of motor rotation
Lefthand arrow above key 4 on V810 or key 7 on V820 On corresponds to position 1
Lefthand arrow above key 4 on V810 or key 7 on V820 turns off corresponds to position 1A
Righthand arrow above key 4 on V810 or key 7 on V820 On corresponds to position 2
Righthand arrow above key 4 on V810 or key 7 on V820 turns off corresponds to position 2A
Positions 3, 3A and the reference position are not displayed.