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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Parameter 197 = 0 Coupling thread tension reduction with high lift for walking foot and speedomat Off.
Parameter 197 = 1 Thread tension reduction is disabled and high lift for walking foot enabled using the key on
socket A/7. The speedomat has no effect.
Parameter 197 = 2 When reaching high lift walking speed by adjusting the speedomat, thread tension reduction
is disabled. The key on socket A/7 has no effect.
Parameter 197 = 3 When reaching high lift walking speed by adjusting the speedomat, thread tension is
disabled. The key on socket A/7 works as with setting 197 = 1.
If parameter 197 = 1...3, thread tension reduction can be enabled at any time using the key on socket D/3.
6.25 Seam with Stitch Counting
Functions V820
Stitch counting forward On lefthand arrow above key On Key 2
Stitch counting backward On righthand arrow above key On
Stitch counting Off both arrows Off
6.25.1 Number of Stitches for a Seam with Stitch Counting
Functions Parameter
Number of stitches for a seam with stitch counting (Stc) 007
Stitch counting On/Off (StS) 015
The number of stitches for a seam with stitch counting can be programmed and varied using the above parameters directly
on the V810/V820 control panel.
For fast operator information (HIT) when using the V820 control panel, the value of the function enabled using key 2 can
be displayed for approx. 3 seconds. During this time, the value can be varied directly by pressing key + or -.
6.25.2 Stitch Counting Speed
Functions Parameter
Positioning speed (n1) 110
Stitch counting speed (n12) 118
Speed mode for a seam with stitch counting (SGn) 141
Speed control for stitch counting can be selected using parameter 141.
Parameter 141 = 0 Execution at pedal controlled speed.
Parameter 141 = 1 Execution at fixed speed n12, when pressing the pedal forward (position >1).
Parameter 141 = 2 Execution at limited speed n12, when pressing the pedal forward (position >1).
Parameter 141 = 3 Automatic execution at fixed speed after having pressed the pedal once. The procedure can be
interrupted by “heelback (-2)".
The sewing speed is reduced in each stitch depending on the actual speed (max. 11 stitches before the end of stitch
counting), in order to be able to stop exactly at the end of counting. When the light barrier is on, free sewing will be
performed after stitch counting.
6.26 Free Seam and Seam with Light Barrier
Functions Parameter
Positioning speed (n1) 110
Upper limit of maximum speed (n2) 111
Limited speed according to setting of 142 (n12) 118
Lower limit of maximum speed (n2_) 121
Speed mode free seam (SFn) 142