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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6.17.5 Parameter 195 = 3 – Model 767, N291 / With Stop / Sewing Foot Down after Seam
End
Functions as with parameter 195 = 2, but the sewing foot is lifted after thread trimming only after the pedal has been heeled
back from position 0 (neutral).
6.17.6 Parameter 195 = 4 – With Thread Monitor Stitch Counting
By pressing a key connected to socket A/12-33, a stitch counter is activated (max. 9990 stitches), and the thread monitor
symbols are continuously displayed. When a V820 control panel is connected, the function can be activated using key 8.
At each intermediate stop, the remaining number of stitches will be displayed. When counting is completed, the thread
monitor symbol (righthand or lefthand) blinks on the display of the V820 control panel. C is displayed for the lefthand
bobbin and D for the righthand bobbin on the V810 control panel. Furthermore, the respective LEDs blink with approx. 4
Hz on the machine, and the drive stops. Even automatic seam sections, except start and end backtack, are interrupted. The
seam can be continued by pressing the pedal forward from position 0 (neutral). The number of stitches is set such that after
completing these stitches, the bobbin is not completely empty. After replacing the bobbin, the key must be pressed so that
the counter is reset to the preset value and activated again. If the drive is turned off during thread monitor counting, this
value is saved and counting is continued after power On. If the key is pressed for less than one second, the counter is set to
the preset value.
Key pressed >1 sec. Thread monitor function is deactivated/activated
Key pressed <1 sec. Counter is set to the preset value
6.18 Needle Cooling
Functions Parameter
Switch speed for needle cooling On/Off (nnk) 120
Switch-off delay of needle cooling after stop (dnk) 183
Needle cooling/under-edge trimmer function (Fnk) 185
Parameter 185 = 1 Needle cooling: Needle cooling is enabled during the entire sewing operation. Disabling after the
stop can be delayed by the time “switch-off delay of needle cooling after stop”, which can be set
with parameter 183.
Parameter 185 = 2 Reserved for options
Parameter 185 = 3 Needle cooling depending on speed: The corresponding switch speed can be set using parameter
120.
When using the V820 control panel, direct access is possible by means of the function key (key 9)!
Function Parameter
Needle cooling On/Off (-F-) 008 = 4
6.19 High Lift for Walking Foot
Functions Parameter
High lift walking speed (n10) 117
High lift for walking foot operational mode stored = ON / not stored = OFF (hPr) 138
High lift for walking foot, function of the key on socket D/6 (Fc6) 149 = 1
Run-out time of high lift walking speed after disabling high lift for walking foot (thP) 152
Minimum number of stitches for high lift for walking foot (chP) 184
High lift for walking foot switch-on delay (hPv) 189
(This delay time is effective only if the actual speed is higher than the high lift walking
speed)