TriPoint VertexRSI 7200, Руководство по эксплуатации и обслуживанию

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O V ERVIE W
2 - 4
Po w er for each of the dr i ve motors i s supp li ed from the dr i ve cab i net through
doub l e i nsu l ated cab l es w h i ch are run through condu i t and other enc l osures serv i ng
as cab l e p l enums and pu ll boxes. The motor po w er conductors connect to pressure-
type l ugs on term i na l s i n the dr i ve cab i net and i n the motor j unct i on boxes. Motor
po w er w i r i ng i s s i zed for rated currents and vo l tage drops and i s protected by
overcurrent dev i ces as def i ned by the regu l at i ons of the Nat i ona l E l ectr i ca l Code
(NEC), Internat i ona l E l ectrotechn i ca l Comm i ss i on (IEC), and Inst i tute of E l ectr i ca l
and E l ectron i c Eng i neers (IEEE).
O vertrave l li m i t s w i tches for each ax i s are i nterfaced w i th the dr i ve cab i net v i a
doub l e i nsu l ated contro l cab li ng. In the dr i ve cab i net, dr i ve i nter l ock l og i c i s
prov i ded for each d i rect i on of trave l and a summary li m i t a l arm i s deve l oped and
prov i ded to the A C U for d i sp l ay. The li m i t s w i tch cab l es connect to pressure-type
term i na l s at each li m i t s w i tch and i n the dr i ve cab i net.
A x i s dr i ve commands and dr i ve cab i net status s i gna l s are passed bet w een the A C U
and dr i ve cab i net through a 2 5 conductor, # 2 2 A W G cab l e w i th a max i mum l ength
of 1 5 0 0 feet. The cab l e connects to a pressure-type term i na l str i p i n the dr i ve
cab i net and term i nates i nto a 2 5-p i n fema l e D-connector at the rear of the A C U.
The A Z, EL, and POL (three-ax i s systems) and A Z, EL, POL and 4 T H A XIS (four-
ax i s systems) transducers i nterface d i rect l y w i th the A C U v i a a sh i e l ded
mu l t i conductor cab l e for each dev i ce. The standard conf i gurat i on i nc l udes s i ng l e-
speed, brush l ess reso l vers that requ i re s i x-conductor cab l es. The cab l es term i nate
to f l y i ng l eads at the reso l ver v i a so l der or pos i t i ve cr i mp connect i ons and term i nate
i nto ma l e D-connectors at the A C U end (2 5-p i n for A Z and EL; 9-p i n for POL). O ther
types of pos i t i on transducers, i nc l ud i ng h i gh accuracy t w o-speed reso l vers and
abso l ute opt i ca l encoders, are ava il ab l e as opt i ons to accommodate cr i t i ca l
accuracy requ i rements.
In app li cat i ons requ i r i ng c l osed-s i gna l - l oop track i ng (Steptrack and OPT), a D i rect
Current (D C) track i ng s i gna l i s accepted through the A C U rear pane l v i a a 9-p i n D-
connector. The nom i na l track i ng vo l tage i nput i s i n the range of 0 to 1 0 V D C, w i th
a s l ope of 0.2 V/dec i be l s (dB) to 1.0 V/dB. T w o A /D i nputs are prov i ded and the
second may be used e i ther as a backup for the pr i mary channe l or as an i nput for
an a l ternate track i ng source. Beacon se l ect outputs are prov i ded on a 7 2 0 0 A C U
rear pane l term i na l str i p, a ll o w i ng remote manua l or automat i c beacon se l ect i on
w i th V ertex track i ng rece i vers. If one of the opt i ona l V ertex TRL ser i es of track i ng
rece i vers i s used, s i gna l strength and beacon se l ect i on funct i ons may be prov i ded
v i a a ser i a l li nk.
Fu ll funct i on remote contro l of the track i ng system i s fac ili tated through one or
more ser i a l li nks conf i gured at the factory for e i ther RS-2 3 2 C or RS-4 2 2 operat i on.
A n IEEE-4 8 8, or GPIB, i nterface i s a l so ava il ab l e. A form C summary a l arm contact
i s prov i ded on the A C U rear pane l user i nterface term i na l str i p TB1.