Remote Control Of C O N S T A N T V O L T A G E (Resistance • V O L T A G - Kenwood PD8-20 Instruction Manual

4) © a n d 0 m a y b e t a k e n o u t f r o m t h e o u t p u t terminals'on
t h e p a n e ! or d i r e c t l y c o n n e c t e d t o t h e load f r o m t h e ©
© t e r m i n a l s of t h e r e a r p a n e l . V o l t a g e d r o p of up t o 1.2 V
per w a y of the output line m a y be c o m p e n s a t e d for. If the
voltage drop is larger t h a n 0 . 5 V , the m a x i m u m - rated
voltage drops accordingly.
T w o core shield
Note:
If the load is r e m o t e , oscillation might h a p p e n due to induc-
t a n c e and c a p a c i t a n c e of t h e output line. In s u c h a c a s e , c o n -
n e c t a n electrolytic c a p a c i t o r of s o m e 1 0 0 fiF in parallel w i t h
the load a s s h o w n a b o v e .
14
!(Note)
Load
Fig.
6
REMOTE CONTROL OF CONSTANT-VOLTAGE
a n d
(Resistance, voltage)
P R E C A U T I O N S W H E N U S I N G R E M O T E - C O N T R O L
T h i s unit a d o p t s the floating circuit s y s t e m . It h a s t e r m i n a l s iso-
lated f r o m the f r a m e a n d c o n t r o l s o u t p u t p o w e r on the b a s i s of
output
the positive (-+
constant
T o control the
ing e x t e r n a l v o l t a g e , c o n n e c t the positive ( + ) output terminal a n d
G N D t e r m i n a l on the front panel a s f o l l o w s :
T h e G N D a n d positive ( + ) t e r m i n a l s s h o u l d be c o n n e c t e d w i t h
the s h o r t bar ( a s s h o w n a b o v e ) or o p e n ( a s s h o w n b e l o w ) :
Short bar
G N D
N o t e :
W h e n the c o n s t a n t voltage and current are to be controlled u s -
ing e x t e r n a l v o l t a g e , t h e s h o r t b a r or a n y l o a d s h o u l d not be
c o n n e c t e d b e t w e e n t h e n e g a t i v e ( - )
t e r m i n a l .
v o l t a g e a n d c o n s t a n t c u r r e n t s e t t i n g s u s -
Load
G N D Load
a n d G N D t e r m i n a l s .