Toolots BWD 100 Series, Instructions For Use And Maintenance Manual

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BWD 8421 Coder Sequence Diagram
1
0
1
0
1
0
1
0
1
0
1
0
p os .
1
8421 coder
Sequence
ELECTRIC
MOTOR
C W
C CW
1
1
0
po s .
2
p os .
2
p os .
3
po s .
4
T T
LOCKING CONTROL
SWITCH
2
0
84
21
co
de
" T" is t he t im e
f or t he m ot or
c cw a nd l oc ki ng ,
it i s
a bo ut 0 .8 -1 .2 s
Th e ga p ti me
be tw ee n m ot or
c w st op pi ng a nd
c cw s ta rt in g
d oe s no t
e xc ee d 50 ms .
2
1
2
2
2
3
TP
The truth table of 8421 coder
position 1 2 3 4 5 6 7 8 9 10 11 12
2
0
1 0 1 0 1 0 1 0 1 0 1 0
2
1
0 1 1 0 0 1 1 0 0 1 1 0
2
2
0 0 0 1 1 1 1 0 0 0 0 1
2
3
0 0 0 0 0 0 0 1 1 1 1 1
TP 1 1 1 1 1 1 1 1 1 1 1 1