TriPoint VertexRSI 7200, Operation And Maintenance Manual

Page: 248 / 266

7 2 0 0 TRO UBLESH O O TIN G
G - 2
1.0 D ri v e C a b i n e t Un r e spons i v e / I nv e r t e r D i sp l a y B l a n k
NOTE: Th i s e rr o r ca n o cc u r e v e n i f th e ACU h a s not b ee n
i nst a ll e d.
If the dr i ve cab i net does not respond to dr i ve commands from l oca l contro l s and the
i nverter d i sp l ay i s b l ank (the i nverters are not energ i zed), fo ll o w these steps.
On the dr i ve cab i net s w i ng-out pane l , check to see i f the C O N TROL PO W ER rocker
s w i tch (breaker) i s i n the O N pos i t i on and ver i fy that the green LED on the s w i tch i s
ill um i nated. A l so ver i fy that the C O N TROL s w i tch i s i n the LO C AL pos i t i on.
1. If the LED i s not ill um i nated, check the fo ll o w i ng:
a V er i fy po w er to the ma i n po w er feeder and breaker.
b. V er i fy that a ll emergency stop pushbuttons and i nter l ocks are not act i vated.
c. Check the i nput w i r i ng to the 2 4 V D C po w er supp l y to ver i fy that A C
vo l tage i s app li ed.
d. If the cond i t i ons li sted i n steps a through c ex i st, measure the po w er
supp l y output p i ns to ver i fy that 2 4 V D C i s ava il ab l e. If D C vo l tage i s not
ava il ab l e, d i sconnect the li m i t s w i tch w i r i ng from the dr i ve cab i net to be
sure that the + 2 4 V D C li nes from the cab i net are not shorted to ground.
Recheck the po w er supp l y and i f D C vo l tage i s st ill not ava il ab l e, rep l ace
the po w er supp l y.
2. If the LED i s ill um i nated and the ma i n contactor i s not energ i zed, check the
fo ll o w i ng:
a. Shorted d i ode (0 2) across p i ns 7 and 8 of re l ay K C 1 on the re l ay PCB.
b. Tr i pped i nverter c i rcu i t breaker.
c. Loose w i r i ng on any term i na l on the re l ay PCB.
d. Re l ay K 7 (and d i ode D 1 9 across p i ns 1 3 and 1 4) on the re l ay PCB.
2.0 D ri v e C a b i n e t I nv e r t e r F a u l ts
NOTE: Th e f a u l t c od e s i n b r acke ts a r e i nd i ca t e d on th e i nv e r t e r
d i sp l a ys.
These fau l ts are i nd i cated by a d i sp l ay of A Z | EL FLT on the A C U. For other i nverter
fau l t poss i b ili t i es, consu l t the i nverter O &M manua l prov i ded i n A ppend i x H of th i s
manua l .