Instruction/ maintenance manual of the product 7ADTB Emerson
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381333–309 50 Hanove r Road, F lorham Park, New J ersey 07932–1591 USA For sales or service call 1 800 800–2726 (A SCO ) www.ascopower .com AS CO PO WER TECH NO LOGI E S CA NA DA PO Box 1238, 17.
Namepl ate The T ransfer Sw itch nam eplate inc ludes d ata for each specifi c 7000 Series ADTB . Use the swi tch only wit hin t he lim its shown on this namep late. A typ ical Catalog N umb er is sho wn be low w ith its ele ments e xplain ed. Ca talog Num ber Identif ication T ypi cal 7000 Series ADTB catalog no.
SECT ION 1 INST ALLA TION 1 --- 1 A SCO 7000 Se r i es A ut om a t i c De l a y e d – T r a n s i t i o n T ransf er & B ypass–Isolati on Switches (7ADTBs) are factory wired an d tested. Fiel d installation requires mounting a nd connecti on of service cables, and a uxi liary co ntro l circ uits (if requ ired) .
INST ALLA TION (cont inued) 1 --- 2 Engine Starting Contacts All c ustomer connections, including the engine control contact connecti ons, are located on termina l block TB which is mounted on the top ri ght side of the enclosure.
INST ALLATIO N (continued) 1 --- 3 RED RED GREEN GREEN obse rve these li ghts AMBER Figure 1- 2. Standard contro ls and indi cators. F unctio nal T e st R ead all instruc tions on the W iring D iagrams and label s affixed to th e 7ADTB. Note the con trol features that ar e provided and r eview their operation before pr oceeding.
INST ALLA TION (cont inued) 1 --- 4 RED RED GREEN GREEN obse rve these li ghts AMBER oper at e this s w itch Figure 1- 3. Standard controls and indi cators. 2 – Electrica l Opera tion Th i s pro ced ur e che cks e le ctr i cal op er at i on o f th e AD T S.
SECT ION 2 TEST ING & SERVIC E 2- -1 TRANS FER TEST T e st the A utomatic T ransf er Switch porti on of the 7000 Series 7ADTB at lea st once a month. T his procedure chec ks the el ectrical operation of the T ransfer Switch and Controller. Put the engine–generator st arti ng control (a t the engine –generator set ) in a utomatic mode.
TEST ING & SERVIC E (continued) 2- -2 TR OUBL E -SHOOTING Note any opti onal accessories that may b e furni shed on the 7ADTB an d review their op eration. R efer to any separ ate drawing s and/ or instr uctions that m ay be packed with th e 7ADTB.
TEST ING & SERVIC E (continued) 2- -3 handle shaft exte nsion frame UP ope ns the Emergency s ou rce contacts DOWN cl oses the Emergency s ou rce contacts UPPER SHAFT Figure 2–2. Maintenance handle operatio n fo r Emergency source contacts (upper shaft).
SECTION 3 B YP ASS ING & ISOLA TING 3 --- 1 Figure 3–1. Status li ghts and Engine Control . TR ANSF ER SWI TCH CONNECT ED TO NORMA L CO N NEC TED T O EM ERGEN C Y Lower red l ight is on if T r ans fer Sw itc h is on Emergency . Upper green light i s on if T r ans fer Swit ch is on Norma l.
B YP AS S ING & ISOLA TING (continued) 3 --- 2 T o By pass No rma l S our ce* T o By pass E merg ency So urce* (Loa d connected to Normal Source) The T rans fer Switch Connected T o Norm al li ght i s o n and T rans fer Switch Conn ected T o Emergency ligh t i s off.
B YP AS S ING & ISOLA TING (continued) 3 --- 3 ISOLATING THE A TS Isolating is required before any service work can be perform ed on the automatic transfer sw itch (A TS). R efer to Figures 3–9, 3–10, 3–11, and 3–12. 1. Bypass t he closed automatic trans fer switch c ontacts .
B YP AS S ING & ISOLA TING (continued) 3 --- 4 4. Open the low er encl osure d oor. Pul l out both left and right side rai ls then use the two tab handles to roll out the transfer switch. It can be safe ly inspected in thi s positi on. The t ransfer swi tch can also be re moved for easi er maintena nce operati ons.
B YP AS S ING & ISOLA TING (continued) 3 --- 5 RETURN TO SERVI CE This proc edur e expla ins how to return the automatic tr an sf er s wi tch ( A TS) t o s er vi ce a ft e r i nsp ect i o n and maintena nce. Observe the Byp ass Swi tch P osition in dica - tor and lig hts).
B YP AS S ING & ISOLA TING (continued) 3 --- 6 Do no t close the isola tion contacts unless the T ra nsf er S witch ( A TS ) a nd By pa ss Switch a re in t he same po siti on! 6.
B YP AS S ING & ISOLA TING (continued) 3 --- 7 RETURN TO SERVI CE cont inued* This proc edure exp lains how to return th e Bypass S witch Hand le to the OPE N position. The Bypass Handl e mu st be i n the CL OSED positi on (yellow indicator on NOR - MAL or EMERGENCY ) and the Is olation Handl e mus t be i n the CONN posi ti on (window).
INDEX Printed in U .S.A . Copy right 2007 ASCO Power T echnologies, L.P . A auxil iary cir cuits , 1–2 B barriers, i nterpha se, 3–4, 3–5 bypassing the A T S, 3–1, 3–2 C catalog number, 1–.
An important point after buying a device Emerson 7ADTB (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Emerson 7ADTB yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Emerson 7ADTB - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Emerson 7ADTB you will learn all the available features of the product, as well as information on its operation. The information that you get Emerson 7ADTB will certainly help you make a decision on the purchase.
If you already are a holder of Emerson 7ADTB, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Emerson 7ADTB.
However, one of the most important roles played by the user manual is to help in solving problems with Emerson 7ADTB. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Emerson 7ADTB along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
