LS-221-BL Technical Reference
Doc. #710220125
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When input is activated (i.e. the sensor is closed) the corresponding input register bit is set to logic
zero. For non-activated inputs register bits are set to logic one.
4.3.1.2. Hall-sensor Inputs
L S -4 2 1 -2 1 1 2 is e q u ip p e d w ith s ix (th re e p e r a x is ) d e d ic a te d in p u ts fo r H a ll-s e n s o rs . T h e
in p u ts u s e + 5 V p o w e r s u p p ly. T o a c tiv a te th e m , lo a d s h o u ld b e a b le to s in k 2 0 m A @ 5 V .
97 3790 8b
Figure 16: Hall-sensor inputs
T h e H a ll-s e n s o r in p u ts c a n n o t b e a c c e s s e d d ire c tly fro m th e h o s t c o m p u te r. T h e M C 1 2 3 1 A
re g is te rs s h o u ld b e u s e d to re a d th e ir s ta tu s .
4.3.1.3. High Speed Position Capture Inputs
M C 1 2 3 1 A D S P m o tio n c o n tro l c h ip s e t is a b le to re c o rd th e a b s o lu te m o to r p o s itio n u s in g
e n c o d e r in d e x lin e a s s tro b e . S e e M C 1 2 3 1 A m a n u a l fo r in fo rm a tio n h o w to u s e p o s itio n c a p tu re
m o d e . L S -2 2 1 -B L is e q u ip p e d w ith s p e c ia l lo g ic , w h ic h a llo w s re p la c in g th e e n c o d e r in d e x
s ig n a l w ith s o m e o f th e c o n tro lle r in p u ts . W ritin g c o rre s p o n d in g n u m b e r to P C S (P o s itio n
C a p tu re S e le c t) re g is te r s e le c ts o n e o f IN 6 , IN 9 , IN 1 0 , IN 1 1 , IN 1 2 , IN 1 3 in p u ts to s e rv e a s a
s tro b e .
R/W access
D7
D6
D5
D4
D3
D2
D1
D0
Base Addr + 0xE
Write
PCS3
PCS2
PCS1
PCS0
APE RES
Table 15: PCS control registers
E ith e r lo w (in p u t is c lo s e d to th e g ro u n d ) o r h ig h (in p u t is o p e n ) le v e l m a y b e s e le c te d to
trig g e r th e c a p tu re . F o r L S -4 2 1 -2 1 1 2 s e le c te d s tro b e in p u t is c o m m o n fo r b o th a x e s . R o w 1 4 o r
1 5 s h o u ld b e s e le c te d d u rin g th e h o m e p ro c e d u re . T h is w ill a llo w e a c h a x is to c a p tu re m o to r
p o s itio n u s in g its o w n e n c o d e r in d e x s ig n a l.