Instruction manual
EFKA AB221A/AB321A + AB222A/AB322A (BA)
77
9 Machine run blockage effective with closed contact (unpositioned): Upon closing the switch, the drive stops
immediately unpositioned.
10 Run at automatic speed (n12): Upon pressing the key, the drive runs at automatic speed. The pedal is not used.
(This input function is inverted in mode 9.)
11 Run at limited speed (n12): Upon pressing the key, the drive runs at limited speed (function of the key according
to setting of parameter 266). The pedal must be pressed forward.
12 Sewing foot lifting with pedal in position 0 (neutral)
13 High lift for walking foot operational mode not stored: The signal “high lift for walking foot” is issued as long
as the key is held down, and the drive runs with speed limitation (n10). Set parameter 137 to On.
14 High lift for walking foot operational mode stored /flip-flop 1: The signal “high lift for walking foot” is issued
upon briefly pressing the key, and the drive runs with speed limitation (n10). The operation is disabled upon
pressing the key again. Set parameter 137 to On.
15 Tape cutter or fast scissors (mode 6/7): Upon pressing the key, the tape cutter will be enabled for a preset time.
16 Intermediate backtack / Intermediate stitch condensing: Upon pressing the key, the backtack or stitch
condensing will be enabled anywhere in the seam and at standstill of the drive.
17 Stitch regulator suppression / recall: Upon pressing the key, the backtack or stitch condensing operation will be
suppressed or recalled once.
18 Unlocking the chain: Upon pressing the key, the motor performs a reverse rotation at the seam end. Moreover,
backtacking and thread trimmer will be suppressed.
19 Reset bobbin thread monitor: After inserting a full bobbin, the stitch counter is set to the value determined by
parameter 031.
20 Handwheel running in the direction of rotation: Upon pressing the key, the drive runs in the direction of
rotation according to the setting of parameter 161.
21 Handwheel running in the direction of rotation: Upon pressing the key, the drive runs in the opposite direction
of rotation according to the setting of parameter 161.
22 Speed limitation n11 (flip-flop 2): Upon pressing the key in the seam, the speed limitation n11 is enabled, and a
signal is issued at the output ST2/29. The speed limitation will be disabled upon pressing the key again, and the
signal at the output is no longer issued.
23 No function
24 Needle to position 2: Upon pressing the key, the drive runs from position 1 to position 2, and the sewing foot is
lifted. The start is blocked after that. Upon pressing the key again, the sewing foot is lowered, and the start is
possible again.
25 Speed limitation with external potentiometer: Upon pressing the key, the external speed limitation becomes
effective. Parameter 126 must be set at “2”.
26 Manual stacker: Upon pressing the key, the function is performed in all modes (except mode 16).
27 Unlocking the chain: Upon pressing the key, the function “unlock the chain” will be performed without using the
pedal.
28 External light barrier: In this mode it is possible to initiate the seam end using a key, not the light barrier. But
the light barrier function must be On.
29 Hemmer foot signal off: See parameter 296. This function is effective only in the seam.
30 High lift for walking foot: Upon pressing the key, high lift for walking foot is enabled if the sewing foot is On.
31 Function “speed limitation bit0”: Upon pressing the key “bit0”, the speed n11 will be enabled. Upon
simultaneously pressing the keys “bit0” and “bit1”, speed n9 will be enabled.
32 Function “speed limitation bit1”: Upon pressing the key “bit1”, speed n10 will be enabled. Upon simultaneously
pressing the keys “bit0” and “bit1”, speed n9 will be enabled.
33 Speed n9: Below this speed, operation can be pedal controlled.
34 Automatic speed n9: The speed can be suspended by pressing the pedal to position 0.
35 Automatic speed n9: The speed can be interrupted by pressing the pedal to position -2.
36 Automatic speed n9: No influence by the pedal.
37 Speed n12 with break contact: Below this speed, operation can be pedal controlled.
38 Automatic speed n12 with break contact: Not influenced by the pedal.
39 Switch to the next pattern in TEACH IN: Upon pressing the key, the program switches to the next pattern.
40 Switch back to the previous pattern TEACH IN: Upon pressing the key, the program switches to the previous
pattern.
41 Tape cutting only at machine standstill.
42 Enable hot thread chain cutting or sewing foot lifting: This function is effective only in the chainstitch mode.
43 No function
44 Function like pressing the pedal to pos. –2: Upon pressing the key, the seam end is initiated. If the functions
“end backtack“ and “trimming operation” are activated, they will be completed. The drive stops in position 2.
45...47 No function
48 Signal A1 is issued: Upon pressing the key, signal A1 is issued immediately.
49 Signal A1 switchable as flip-flop: Upon pressing the key, signal A1 is activated and deactivated when pressing
the key again.
50 No function
51 Signal A2 is issued: Upon pressing the key, signal A2 is issued immediately.