Table of Contents
Advertisement
7 - 2 - 4
Z e r o p o i n t r e t u r n c r e e p s p e e d
C r e e p s p e e d
i s r e l a t e d
t o t h e d e t e c t i o n
e r r o r w h e n r e t u r n
i s
b y z e r o - p o i n t - s i g n a l ,
a n d i t i s r e l a t e d t o t h e s t o p p i n g i m p a c t
w h e n r e t u r n i s b y s t o p p e r
( r e f e r t o F i g - .
7 . 4 ,
7 . 5 ) .
A c c o r d i n g l y , y o u s h o u l d s e t t h e c r e e p s p e e d w h i l e t a k i n g i n t o
a c c o u n t t h e e r r o r r a n g e a n d s i z e o f i m p a c t .
7 - 2 - 5
T o r q u e r e s t r i c t i o n
T o r q u e r e s t r i c t i o n c a n be m a d e a s a
parameter value.
U n t i l creep
speed i s reached9 i t i s t h e parameter torque r e s t r i c t i o n value,
and t h i s torque r e s t r i c t i o n becomes e f f e c t i v e a f t e r creep speed
i s achieved.
Accordingly,a s u f f i c i e n t d i s t a n c e between near-
p o i n t dog and s t o p p e r should be maintained s o t h a t d e c e l e r a t i o n
n
t o creep speed can be performed.
7 - 2 - 6
D w e l l
t i m e
70-
\upD
Then r e t u r n i s d e f i n e d s t o p p e r with dwell time,
t h i s
f u n c t i o n
s e t s
t h e
time from t h e near-point dog
ON
u n t i l t h e completion of posLtioning.
A c c o r d i n g l y ,
y o u s h o u l d
allow
s u f f i c i e n t t i m e b e t w e e n t h e
r e a c h i n g o f c r e e p s p e e d a n d t h e s t o p p e r .
7 - 3
.
P o s i t i o n i n g d a t a
T h i s i s d a t a
accessed d u r i n g p o s i t i o n i n g .
7 - 3 - 1
D a t a NO..
Four hundred p o s i t i o n i n g d a t a v a l u e s can be s e t f o r
X
and Y axes
r e s p e c t i v e l y i n a d d r e s s e s
0 ~ 3 9 9 .
W i t h e a c h d a t a n u m b e r ,
t h e f o l l o w i n g d a t a v a l u e s m u s t b e s e t :
-33-
Advertisement
Table of Contents
