Rockwell 70-602, Technical Manual

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E L E C T R I C A L C O N N E C T I O N S
If the motor on your machine is wired for 230V single
phase, the power cord is equipped with a plug that has
t w o f l a t , c u r r e n t - c a r r y i n g p r o n g s i n t a n d e m , a n d o n e
round or “U’’-shaped longer ground prong. This is used
o n l y w i t h t h e p r o p e r m a t i n g 3 - c o n d u c t o r g r o u n d i n g
t y p e r e c e p t a c l e , a s s h o w n i n F i g . 1 . W h e n t h e t h r e e -
p r o n g p l u g o n y o u r m a c h i n e i s p l u g g e d i n t o a g r o u n d -
e d , 3 - c o n d u c t o r r e c e p t a c l e , t h e l o n g g r o u n d p r o n g o n
t h e p l u g c o n t a c t s f i r s t s o t h e m a c h i n e i s p r o p e r l y
g r o u n d e d b e f o r e e l e c t r i c i t y r e a c h e s i t .
Fig 1 - Electrical Connections
I f t h e m o t o r o n y o u r m a c h i n e i s w i r e d f o r 2 0 0 V , 2 3 0 V
o r 4 6 0 V t h r e e p h a s e , t h e n e c e s s a r y w i r i n g f r o m t h e
s t a r t e r t o t h e p o w e r s o u r c e s h o u l d b e c o m p l e t e d b y a
c o m p e t e n t e l e c t r i c i a n .
I M P O R T A N T : M a k e s u r e t h e e l e c t r i c a l c h a r a c t e r i s t i c s
a r e t h e s a m e b e t w e e n t h e m o t o r n a m e p l a t e a n d t h e
power source and make sure the power circuit the drill
p r e s s w i l l b e u s e d o n i s p r o p e r l y f u s e d a n d t h a t t h e
w i r e s i z e i s c o r r e c t , a s s h o w n i n F i g 2 . M A K E S U R E
T H E D R I L L P R E S S I S P R O P E R L Y G R O U N D E D .
Fig 2- Wire & Fuse Size
S I N G L E P H A S E
T H R E E P H A S E
2 3 0 V O L T S 2 0 0 - 2 3 0 V O L T S
4 6 0 V O L T S
T I M E L A G T I M E L A G T I M E L A G
H P W I R E S I Z E F U S E * W I R E S I Z E F U S E * W I R E S I Z E F U S E *
1 1/2 1 2 2 0 1 4 1 5 1 4 1 5
Fig. 2 *Size fuse selected for branch circuit protection.
SPINDLE SPEEDS
With the Step Pulley — Direct Drive Drilling Machine
you get eight selected speeds with full HP at the spin-
dle at all speeds. The speeds available with your dril-
ling machine are 375, 600, 900, 1275, 1800, 2400,
3075 and 4250 RPM. The highest speed is obtained
when the belt is on the largest step of the motor
pulley and the smallest step of the spindle pulley.
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