Pfaff 591

68
80.20.40 noisreV
2.04 Block diagram PFAFF 570 / 590 with control unit P44 PD-L
PC
BDF - PICO TOP
Drive / Ministop long
incremental transducer
for
software
download
power switch
Mains plug
Control unit P44 PD-L
Control package P44 PD-L
Speedcontrolunit
570/590
Synchronizer PD6
only on the 574
LS = Light barrier
VR1 = Roller presser release
VR2 = Feed switch-over
VR3 = VR3 – magnet (needle) only on the 571 + 591
FSL = Thread tension release
PFA = Automatic presser foot lift
-900 = Thread trimmer
STOP = Start inhibitor
Block diagram