TriPoint VertexRSI 7200, Operation And Maintenance Manual

Page: 65 / 266

INST ALLA TIO N
4 - 1 9
NOTE: Do not m ake c h a ng e s to th e p r og r a m fun c t i on c od e s
b e fo r e c ont ac t i ng V e r t e x Cont r o l Syst e ms. Ch a ng i ng th e s e
p a r a m e t e r s c ou l d ca us e D ri v e m a l fun c t i ons, i n c o rr ec t t r ack i ng of
th e a nt e nn a , a nd o r phys i ca l d a m a g e to th e syst e m.
A ll other parameters are set at factory defau l t.
4.4.1.3 D ri v e Moto r P h a s i ng
Because a ll ax i s dr i ves are b i -d i rect i ona l , the actua l d i rect i on of antenna ax i s
rotat i on shou l d correspond to the d i rect i on commanded by the contro l system. The
fo ll o w i ng procedures shou l d be fo ll o w ed to ensure th i s correspondence (make a ll
contro l commands at the PM C U).
NOTE: P ri o r to p e r fo r m i ng th e s e p r o ce du r e s, e nsu r e th a t th e a nt e nn a
i s c l ea r of e l ec t ri ca l a nd m ec h a n i ca l stop li m i ts i n a ll a x e s, p r e f e r a b l y
w i th eac h a x i s n ea r th e ce nt e r of t r a v e l .
WA R N I NG
I F ANY AX I S D R I VE MOTO R I S P HASED I NCO RR ECT L Y, THE
CO RR ES P OND I NG E L ECT R I CA L L I M I T SW I TCH W I LL NOT
P R EVENT OVE R T R AVE L OF THE ANTENNA.
4.4.1.3.1 AZ Moto r P h a s i ng
1. Us i ng the PM C U set the A ZIM U T H SPEED A DJUST s w i tch to the TRA C K
pos i t i on.
2. Ho l d the A Z A XIS s w i tch to C W for a fe w seconds and then to C C W for a fe w
seconds, w h il e observ i ng the d i rect i on of rotat i on of the antenna.
3. If the d i rect i on of antenna rotat i on agrees w i th the contro l commands, proceed
to paragraph 4.4.1.3.2.
4. If the d i rect i on of antenna rotat i on i s reversed from the commanded d i rect i on,
remove po w er from the dr i ve cab i net, and s w i tch the A Z motor l eads connected
to term i na l s A z-U and A z-W .
5. Restore po w er to the dr i ve cab i net and recheck for proper A Z rotat i on.