
Circuit Diagrams
50
16
.02
Circuit diagrams
Reference list for circuit diagrams 91-191 454-95
A
1
Control device P
322
ED
A
2
Operating panel BDF S
3
A
3
Incremental encoder ( included in M
1
)
A
4
Key field
A
11
Transmitted light transmitter
A
12
Transmitter light receiver
A
13
Bobbin thread monitor
A
14
Sewing head detection
S
1
Nominal value transmitter
S
10
Single stitch ( included in A
4
)
S
11
Hand operation front (bartack) ( included in A
4
)
S
12
Needle position ( included in A
4
)
S
13
Knee switch ( single stitch )
S
14
Starting lock-out
S
15
Knee switch
2
H
1
Sewing lamp
H
10
Bobbin thread alarm ( included in A
4
)
Q
1
Main switch
M
1
Sewing motor
M
10
Stepping motor (feed regulator)
M
11
Stepping motor (edge guide)
B
10
Forked light barrier ( included in M
10
)
Y
2
900
(Thread trimmer)
Y
3
WI (Thread wiper device)
Y
4
PFA (Presser foot)
Y
8
FSL (Thread tension ventilation)
X
40
Zig-zag sensor
X
41
DLS - Transmitted light transmitter
X
42
DLE - Transmitted light receiver
X
43
UFW - Bobbin thread monitor