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 140/144 = 1: Needle up
When the key is pressed, the drive runs from position 1 to the reverse position. This does not depend on whether reverse
motor rotation is On or Off. If parameter 180 is set to 0, the drive stops in position 2. If the drive is outside the slot position
1, it does not move for safety reasons. The function is blocked after power On until sewing is started.
Parameter 140/144 = 2: Needle up/down
When the key is pressed, the drive runs from position 1 to the reverse position or from the reverse position to position 1.
This does not depend on whether reverse motor rotation is On or Off. If parameter 180 is set to 0, the drive stops in position
2. If the drive is outside the slot between position 1 and 1A or position 2 and 2A, it runs to the next possible position. After
power On, the drive runs to the next position identified.
Parameter 140/144 = 3: Single stitch
When the key is pressed, the drive performs one rotation from position 1 to position 1. If the drive is in the reverse position,
it runs to position 1 when pressing the key and from position 1 to position 1 each time the key is pressed again.
Parameter 140/144 = 4: Single stitch with normal stitch length
When the key is pressed, the drive performs one rotation from position 1 to position 1. If the drive is in the reverse position,
it runs to position 1 when pressing the key and from position 1 to position 1 each time the key is pressed again. At the same
time, the output “switch stitch length” on socket A/30 is enabled and the corresponding light emitting diode on socket A/29
disabled.
Parameter 140/144 = 5: Needle in position 2
When the key is pressed, the drive runs to position 2 or reverse position, independently of its present position. This function
is also possible after power On.
Parameter 140/144 = 6: Machine stop in position 2
After the key has been pressed, the drive stops in position 2 and the sewing foot is lifted. The machine run blockage symbol
blinks on the V820 and “stop” on the V810, respectively. The drive functions are blocked. Only after power Off/On is the
drive again ready for operation.
6.29 F1/F2 Function Key Assignment on the V810/V820 Control Panels
Functions Parameter
Selection of input function on key (A) "F1" on the V810/V820 control panels (tF1) 293
Selection of input function on key (B) "F2" on the V810/V820 control panels (tF2) 294
The following functions are possible using parameters 293 and 294:
293/294 = 0 Input function blocked
293/294 = 1 Needle up: Function according to setting of parameter 140 or 144.
293/294 = 2 Needle up-down: Function according to setting of parameter 140 or 144.
293/294 = 3 Single stitch (basting stitch): Function according to setting of parameter 140 or 144.
293/294 = 4 Single stitch with normal stitch length: Function according to setting of parameter 140 or 144.
293/294 = 5 Needle to position 2: Function according to setting of parameter 140 or 144.
293/294 = 6 Switch stitch length: Normal or long stitch.
293/294 = 7 Thread tension: Function for thread tension reduction.
293/294 = 8 Sewing foot pressure: Function for sewing foot pressure reduction.
293/294 = 9 Roller: Lift or lower.
293/294 = 10 Speed limitation DB3000.
293/294 = 11/12 No function
293/294 = 13 High lift for walking foot operational mode not stored/stored according to setting of
parameter 138: The signal “high lift for walking foot” is issued as long as the key is pressed
down, and the drive runs with speed limitation (n10).
293/294 = 14/15 No function
293/294 = 16 Intermediate backtack: Upon pressing the key, the backtack will be enabled anywhere in the
seam and at standstill of the drive.
293/294 = 17 Backtack suppression / recall: Upon pressing the key, the backtack will be suppressed or
recalled once.
293/294 = 18 Coupling the sewing foot with thread tension release: This function can be enabled or disabled
according to the setting of parameter 196.
293/294 = 19 Reset thread monitor: After inserting a full bobbin, the stitch counter is set to the value
determined using parameter 085.