Efka DC 1550, Instruction Manual

Page: 4 / 52

Instruction Manual - 4 -
7.4.4.3 Stitch Correction and Last Stitch Backward 27
7.4.4.4 Double End Backtack/End Stitch Condensing 27
7.4.4.5 Single End Backtack / End Stitch Condensing 27
7.4.5 Start Ornamental Backtack/Stitch Condensing 28
7.4.6 End Ornamental Backtack/Stitch Condensing 28
7.4.6.1 Stitch counting for ornamental backtack 29
7.4.7 Intermediate Backtack 29
7.4.8 Pilgrim backtack 30
7.4.9 Stitch lock at the seam end 30
7.4.10 Stitch Regulator Suppression/Recall 30
7.4.11 Holding Power of the Stitch Regulator Solenoid 31
7.5 Reverse motor rotation 31
7.6 Machine run blockage 31
7.7 Stop function 32
7.8 High lift for walking foot 33
7.8.1 High lift for walking foot signal output M16 (flip flop 1) 33
7.8.2 High lift for walking foot operational mode not stored 33
7.8.3 High lift for walking foot operational mode stored (flip flop 1) 33
7.8.4 Minimum number of stitches for high lift for walking 33
7.8.5 High Lift Walking Speed Run-Out Time 33
7.8.6 Speed Limitation Depending on High Lift 33
7.8.6.1 Setting the Speed Limitation Depending on High Lift 34
7.9 Speed Limitation n9 34
7.10 Speed Limitation n11 with Signal Output M10 / flip flop 2) 34
7.11 Disabling of flip-flop functions at the seam end 35
7.12 Bobbin thread monitor 35
7.12.1 Bobbin thread monitoring with sensors 35
7.12.2 Bobbin thread monitoring using stitch counting 36
7.13 Thread Trimming Operation 36
7.13.1 Thread Trimmer/Thread Wiper 37
7.13.2 Trimming speed 37
7.14 Seam with Stitch Counting 37
7.14.1 Number of Stitches for a Seam with Stitch Counting 37
7.14.2 Stitch Counting Speed 37
7.14.3 Seam with Stitch Counting When Light Barrier Is On 38
7.15 Free Seam and Seam with Light Barrier 38
7.16 Light barrier 39
7.16.1 Speed after Light Barrier Sensing 39
7.16.2 General Light Barrier Functions 39
7.16.3 Reflection Light Barrier LSM002 40
7.16.4 Automatic Start Controlled by Light Barrier 40
7.16.5 Light barrier filter for knitted fabrics 40
7.16.6 Functional Variations of the Light Barrier Input 40
7.17 Inputs for switches and keys 41
7.17.1 Switching Functions of Inputs in1...i13 41
7.17.2 Multiple-function key bar in machine head 43
7.17.3 Multiple-function key 43
7.17.4 Software Debouncing of All Inputs 43
7.18 F1/F2 Function Key Assignment on the V810/V820/V850 Control Panels 43
7.19 Target stitching function/move to needle function by key 44
7.20 Speed Limitation by means of External Potentiometer 44
7.21 Signals A1 and A2 45
7.21.1 Puller Function Using Signal A1 and/or A2 46
7.21.2 Edge trimmer with signal A1 46
7.22
Signal “Machine Running“
47
7.23 Signal Output Position 2 47
7.24 Signal Output G1/G2, 512 Impulses per Rotation 47
7.25 Actuator 47
7.25.1 Digital actuator 47