8.2 Control Panel  OC-TOP (Optional Equipment)
8.2.1 Operating and Indicator Elements in the OC-TOP Control Panel 
Functions of the Keys in the OC-TOP Control Panel 
It is possible to turn functions on or off by briefly pressing keys on the control panel.
The functions are only then in effect on the machine if the corresponding devices (e.g.
solenoidal or electropneumatic sewing foot lift) are present.
Key Function Indicator
1 A +/- Programming key Change of the value in the display
1 B +/- Programming key Change of the value in the display
1 C +/- Programming key Change of the value in the display
1 D +/- Programming key Change of the value in the display
1 P +/- Programming key Change of the value in the display
1 S +/- Programming key Change of the value in the display
1 L +/- Programming key Change of the value in the display
2 Beginning bartack on/off LED in the key
3 End bartack on/off LED in the key
4 Bartack suppression or bartack  LED in the key
call up
If beginning or end bartack are The LED is lit when the 
turned on, pressing the key will
turn off the next bartack. key is pressed. It becomes 
dark when the next bartack is turned
If beginning or end bartack are off- on or off accordingly.
turned off, pressing the key will
turn the next bartack on.
5 (P/M) Manual sewing LED in the key dark
Programmed sewing LED in the key lit
A B C D P S L
0I
0I
P
M
T
E
F1 F2 F3 F4 F5
BA
CD
GB
61