Reference list for the Circuit diagrams 91-191 524-95 and 91-191 534-95
Control unit Typical P40ED
Sewing head recognition(OTE)
LED reverse stitch counting
Externer Positionsgeber PD3 (574)
Pedal (speed control unit)
Needle position change / threading key
RS 232 interface (PC) plug
Incremental transmitter plug
Incremental transmitter plug
Pedal (speed control unit) plug
BDF-S1 control panel plug
Bobbin thread monitor plug (optional)
Light barrier plug (optional
Thread trimmer plug(-900/..)
Automatic presser foot lift plug (-910/..)
Backtacking device plug (-911/..)
Backtacking device plug (-911/..) - roller presser
Backtacking device plug (-911/..) - feed wheel
Backtacking device plug (-911/..) - needle
Light barrier plug (optional)
PicoTop control panel plug / RS232
(PC)
Control unit Typical P44PD
Sewing motor with incremental transmitter