6 . 2 S P E E D R E F E R E N C E
6 2 1 S p e e d Reference Circuit
From t h e SERVOPACK b u i l t - i n c o n t r o l p o w e r ( 1 C N -
® , 0 ) : + 1 2 V , 1 C N - © , ® , © , 0 : O V ,
1CN- ,
:
- 1 2 V ) o r t h e e x t e r n a l p o w e r , t h e
speed r e f e r e n c e v o l t a g e i s g i v e n t o 1 C N - a n d
o r t o 1 C N - a n d J . W h e n t h e SERVOPACK
b u i l t - i n c o n t r o l p o w e r i s u s e d , t h e m o t o r s p e e d
f l u c t u a t e s i n t h e r a n g e o f ±-2$ o f t h e s p e e d s e t
v a l u e .
The m e t h o d f o r g i v i n g s p e e d r e f e r e n c e v o l t a g e
is d e s c r i b e d b e l o w.
(1) F o r a c c u r a t e ( i n c h i n g ) s p e e d s e t t i n g
12V
25HP-1013 type M u l t i p l e -rotation type, wire wound variable resis-
tor (with dial MD10-30134) made by Sakae Tsushin Inc
(a) When Multiple-rotation Type,
Wire Wound Variable Resistor is used
1 MI (4-W OR OVER) 1 8 kft (-4 W OR OVER)
3 ( F O R L O W S P E E D )
12V
-12 11 -141•
13
RV3OYN type C a r b o n -film variable resistor made by Tokyo Cosmos
Electric
Low-and high-speed relays R e e d relay (SRF-B, SRG-B) made b y
Nippon Electric o r equivalent, or low-level relay (G2A-432) made by
OMRON or equivalent
Note W h e n a carbon resistor is used, a great residual resistance
remains, and s o t h e speed c o n t r o l range becomes approximately
500 1
(b) When Carbon Variable Resistor is used
*Parentheses are for auxiliary input
Fig 6 3 M e t h o d for Giving
Speed Reference Voltage
(for Accurate Speed Setting)
(2) F o r r e l a t i v e l y r o u g h s p e e d s e t t i n g
1.8 ( 4 W OR OVER)
TYPE R V 3 O Y N
3
OR E Q U I VA L E N T
12 V
L
SERVOPACK
-12(1-141*
-13(1-151•
* Parentheses are for auxiliary input
Note W h e n a carbon resistor i s used, a great residual resistance
remains, and so the speed control range becomes about 500 1
Fig 6 4 M e t h o d for Giving Speed Reference Voltage
(for relatively Rough Speed Setting
as compared with Fig 6 3)
6 2 2 S t o p Reference Circuit
When c o m m a n d i n g a s t o p , d o n o t o p e n t h e s p e e d
r e f e r e n c e c i r c u i t ( 1 C N - o r 1 C N - ) , b u t s e t
to 0 V.
1 8 MI
( O R OVER)
I T Y P E E S H P 1 0 B
1 2 V O R E O J I VA L E N T
2 k f l
(a) When Multiple-rotation Type,
Wire Wound Variable Resistor is used
1 8 MI R U N (ON)
( + W OR OVER) S TO P (OFF)
SERVOPACK
1 2 V :
T Y P E R V 3 O Y N
O R E Q U I V A L E N T
2 k))
1-12 (1 -14)•
(b) When Carbon Variable Resistor is used
*Parentheses are for auxiliary input
Fig 6 5 M e t h o d for Giving Stop Reference
6 2 3 H a n d l i n g o f Speed Reference I n p u t Te r m i n a l
T h e u n u s e d t e r m i n a l s , o u t o f t h e s p e e d r e f e r e n c e
t e r m i n a l s 1 C N - 0 , O D a n d t h e a u x i l i a r y i n p u t
t e r m i n a l s 1 C N - ® , t m u s t b e s h o r t - c i r c u i t e d .
6. 2 4 A u x i l i a r y I n p u t Circuit ( ± 2 to ± 1 0 V)
A u x i l i a r y i n p u t c i r c u i t i s u s e d f o r a p p l i c a t i o n a t
r a t e d r e f e r e n c e v o l t a g e o t h e r t h a n ± 6 V.
A d j u s t m e n t p r o c e d u r e s
B e t w e e n 1 C N - ( 3 a n d
(
© i s O V ) , i n p u t
t h e v o l t a g e t o b e u s e d t o s e t t h e r a t e d s p e e d ,
and a d j u s t t h e p o t e n t i o m e t e r ( I N - B s o t h a t t h e
r a t e d s p e e d i s a c h i e v e d .
When c o m b i n e d w i t h Ya s k a w a P o s i t i o n p a c k i n
p o s i t i o n i n g s y s t e m d r i v e , a u x i l i a r y i n p u t t e r m i n a l s
are n o r m a l l y u s e d a s s p e e d r e f e r e n c e i n p u t . I n
t h i s c a s e , p o s i t i o n i n g l o o p g a i n i s a d j u s t e d w i t h
the p o t e n t i o m e t e r 1 V R I N - B I. F o r a d j u s t m e n t ,
be s u r e t o r e f e r t o P o s i t i o n p a c k i n s t r u c t i o n
manuals.
— 2 2 —
Содержание USAREM-A5A
Страница 3: ......
