Instruction manual

EFKA AB221A/AB321A + AB222A/AB322A (BA)
82
Table: Coding of the Pedal Steps
Pedal step D C B A
-2 H H L L Full heelback (e. g. initiating the seam end)
-1 H H H L Slight heelback (e. g. sewing foot lifting)
0 H H H H Pedal in pos. 0 (neutral)
½ H H L H Pedal slightly forward (e. g. sewing foot lowering)
1 H L L H Speed stage 1 (n1)
2 H L L L Speed stage 2
3 H L H L Speed stage 3
4 H L H H Speed stage 4
5 L L H H Speed stage 5
6 L L H L Speed stage 6
7 L L L L Speed stage 7
8 L L L H Speed stage 8
9 L H L H Speed stage 9
10 L H L L Speed stage 10
11 L H H L Speed stage 11
12 L H H H Speed stage 12 (n2) Pedal fully forward
Function with or without control panel Parameter
Selectable pedal functions (-Pd) 019
The effect of pedal actuation on the drive functions can be set using parameter 019:
019 = 0 Pedal in pos. -1 blocked in the seam. But with pedal in pos. -2 sewing foot lifting is possible in the
seam (function active whenever the light barrier is On).
019 = 1 With pedal in pos. -1 sewing foot lifting is blocked in the seam.
019 = 2 With pedal in pos. -2 thread trimming is blocked (function active whenever the light barrier is On).
019 = 3 The functions “pedal in pos. –1” and “pedal in pos. –2” are active.
019 = 4 The functions “pedal in pos. –1” and “pedal in pos. –2” are blocked in the seam
(function active whenever the light barrier is On).
Function with or without control panel Parameter
Speed stage graduation (nSt) 119
The pedal characteristics (speed change from stage to stage) can be varied.
Possible characteristic curves: - linear
- progressive
- highly progressive
9.47 Acoustic Signal
Function with control panel Parameter
Acoustic signal On/Off (AkS) 127
An acoustic signal which sounds in the following cases can be enabled by means of parameter 127:
 When the bobbin thread monitor is On, after completion of the stitch count.
 When the machine run blockage is On.
 During service hours monitoring