EFKA FP220A5911
50
Function
with
or
without
control panel
Parameter
Automatic sewing foot with pedal forward at the seam end if light barrier or
(AFL)
023
stitch counting is On
Switch-on delay with pedal in position –1 (half heelback)
(t2)
201
Start delay after switching off the sewing foot lift signal
(t3)
202
Time of full power
(t4)
203
Duty ratio (ED) with pulsing
(t5)
204
Delay after thread wiping until sewing foot lifting
(t7)
206
Delay after thread trimming without thread wiper until sewing foot lifting
(tFL)
211
Selection of the sewing foot lift function
(FLP)
236
Upper limit ON period of sewing foot lifting 1...100
(EF-)
254
Sewing foot is lifted:
!
in the seam
by half heelback (position -1)
or automatically (by means of the
S4
key on the control, lefthand LED lights up)
or automatically (by means of the
3
key on the V810 control panel)
or automatically (by means of the
6
key on the V820 control panel)
by pressing a key depending on the preselection of parameters 240...249
!
after thread trimming
by heelback (position -1 or -2)
or automatically (by means of the
S4
key on the control, righthand LED lights up)
or automatically (by means of the
3
key on the V810 control panel)
or automatically (by means of the
6
key on the V820 control panel)
by pressing a key depending on the preselection of parameters 240...249
automatically by means of light barrier with pedal forward according to the setting
of parameter 023
automatically by means of stitch counting with pedal forward according to the setting
of parameter 023
switch-on delay after thread wiper (t7)
switch-on delay without thread wiper (tFL)
It is possible to prevent unintentional foot lifting before thread trimming when changing from pedal position 0 (neutral) to
position -2 by setting a switch-on delay (t2) by means of parameter 201.
Holding power of the lifted foot:
The sewing foot is lifted by full power. Then the system switches automatically to partial power in order to reduce the load
for the control and the connected solenoid.
Set the duration of full power by means of parameter 203 and the partial holding power by means of parameter 204.
Value
Duty ratio (ED)
Effect
1
1 %
low holding power
100
100 %
high holding power (full power)
Sewing foot lowers:
!
Press pedal to position 0 (neutral)
!
Press pedal to position ½ (slightly forward)
!
Release key for manual sewing foot lift
Upon pressing the pedal forward from lifted sewing foot, the start delay (t3) that can be set by means of parameter 202
becomes effective.
The following settings are possible with parameter 236:
Parameter 236 = 0
Sewing foot lifting is possible from all positions.
Parameter 236 = 1
Sewing foot lifting is possible only from position 2.
Parameter 236 = 2
Sewing foot lifting is stored in pedal position –1 or –2. The storing can be undone by
pressing the pedal slightly forward.
See List of Parameters chapter
"Timing Diagrams"!
CAUTION!
If the holding power is set too high, the solenoid and the control may be permanently
damaged. Please observe the permissible duty ratio (ED) of the solenoid, and set the
appropriate value according to the table below.
