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
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6.10 Multiple Backtacking
Functions Parameter
Repetitions of double start backtacking (wAR) 090
Repetitions of double end backtacking (wER) 091
Multiple backtacking is possible only if double start or end backtacking is On. (Value 0 = Multiple backtacking Off).
Sewing direction
¬ − ®
¬
Catch backtacking
−
Normal backtacking
®
Multiple backtacking
6.11 Catch backtacking
Functions Parameter
Number of catch backtacking stitches forward (cb1) 092
Number of catch backtacking stitches backward (cb2) 093
Catch backtacking is possible only at the start of the seam if double start backtacking is On, not with start ornamental
backtacking (Value 0 = Catch backtacking Off). The catch backtacking function is active only if parameter 093 > 0.
Sewing direction
¬ − ®
¬
Catch backtacking
−
Normal backtacking
®
Multiple backtacking
6.12 Intermediate Backtack
Upon pressing an external key on socket A/5-33 or C/1-2, the backtack solenoid can be enabled anywhere in the seam. The
speed limitation of parameter 288 or 289 becomes effective according to the setting of parameters 135 and 287. See List of
Parameters chapter Connection Diagram!
Function Parameter
Intermediate backtack, function of the key on socket D/5 (Fc5) 148 = 2
Speed limitation DB3000 for manual backtack On/Off (dbA) 287
Speed limitation for manual ornamental backtack (n9) 288
Speed limitation for manual backtack (n11) 289
Intermediate backtack:
Backward sewing with speed limitation according to the setting of parameter 289 is performed when the key is pressed
down.