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Emerson 386 manual

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Table of contents for the manual

  • Page 1

    381333–086 D 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 Airport R oad, Brantf ord, O ntario, Can ada N 3T 5T3 Operator’s Manual Seri es 386 Non–Automatic T ransfer S witches E–d es ig n 260–400 A[...]

  • Page 2

    [...]

  • Page 3

    SECT ION 1 INST ALLA TION 1 --- 1 A SCO 386 Non– A utom atic T ransfer Switc hes (N–A TSs) ar e fa ct ory wi r ed a nd t e st ed . Fi e ld i ns ta lla ti o n si mply require s mounti ng and connecti on of service cables, and auxi liary control circuits (i f re quire d). Re mov e the Shi pp in g Ski d (larg e N– A TSs) F or l arge N–A TSs, o[...]

  • Page 4

    INST ALLA TION (cont inued) 1 --- 2 Line Connections A Wirin g Diagram is furn ished w ith the A SC O 386 (separ ate from this m anual ). R efer to this drawin g. All wir i ng must be ma de i n acco rda n ce wit h th e Na ti o na l El ectric al Code and local c odes. De–energize the co nducto rs before mak ing any line or auxiliary circuitry conn[...]

  • Page 5

    INST ALLA TION (cont inued) 1 --- 3 F unctio nal T est The F unctional T est consists o f three chec ks: manual operation, v oltage checks , and elec trical operation. NOT ICE Do these checks in the order presented to avoid damaging the non–auto matic transfer s witch. 1 – Manual Operation T est A detachable maintenance handle is provided on th[...]

  • Page 6

    INST ALLA TION (cont inued) 1 --- 4 F unctio nal T est (continued) 2–V o l t a g e C h e c k s First check nameplate on the transf er switch for ra ted vol tage. It shou ld b e the same as th e normal and emerg ency l ine voltag es. Use ext reme caution when using a meter to measure volta ges in the fo llowing steps . Do not to uch power terminal[...]

  • Page 7

    SECT ION 2 SEQUENCE OF OPERA TION 2 --- 1 Co nt roller C ode 1 Re f e r t o Section 5, Optional A ccess ories f or additional con trol fun ctions. Re fe r t o Wiring Dia gram furnis hed wit h t he ASCO 386. Note Control F eatures furnish ed on th is s witch , and rev iew operation. Tr a n s f e r Cont ro l Tr a n s f e r To Normal Tr a n s f e r To[...]

  • Page 8

    SECT ION 3 TEST ING & SERVIC E 3 --- 1 PREVENTIV E MAINTENANCE R easonab le c are in pr eventiv e mainten ance w ill insu re high reliabili ty and long life f or the swit ch. An annual preventi ve mainte nance program is recom mended. AS C O S e rv i c e s , I n c . ( AS I) i s ASC O P o w e r T echnolog i es’s na ti onal servi ce organizati [...]

  • Page 9

    TEST ING & SERVIC E (continued) 3 --- 2 MAN UAL L O AD TRAN SFER This pr oced ure w ill m anual ly tr ansfer th e load if th e Controller is di sconnected. Do no t manually operate the transfer switch until bot h power so urces are disconnected: open bot h circuit breakers . 1. Open normal and emergency sourc e circuit breakers. 2. Us e manual [...]

  • Page 10

    SECT ION 4 ADJUST MENTS 4 --- 1 Senso r Adjustments V oltage and freq uency sensor pickup and dropout points ar e factory set as sp ecified on the W iring Diagram. The freque ncy sett ing can be set fo r 50 or 60 Hz .. T o c hang e this setting , foll ow the pr ocedu re bel ow. Use T abl e 4-1 for th e setting and corres ponding DIP switc h actuato[...]

  • Page 11

    SECT ION 5 OPTIONAL FEA T URES 5 --- 1 MOTO R L OA D TRANS FER Inphase monitori ng logic con trols tr ansfer and retransfe r of motor loads, so that i nrush currents do not exceed normal starting currents. It avoi ds nuisance tripping of cir cuit breakers and m echanic al damag e to mot or co up li ngs . The Motor Load T r ansfer feature is bu ilt [...]

  • Page 12

    INDEX Printed in U .S.A. Copy right - - - ASCO Power T echnologies, L.P . 2011 A auxil iary cir cuits , 1–1 B barriers, 1–2 bus connections, 1–2 C cable lugs, 1–1, 1–2 preparat ion, 1–1, 1–2 cat alo g nu mber, in si de co ve r cleaning, 3–1 connections line, 1–2 controller, 4–1 code , i n si de co ve r cover removal, 4–1 disco[...]