Switch User Manual

ManualsBrandsEmerson ManualsSwitch600 A

381333–283 B

50 Hanover Road, Florham Park, New Jersey 07932–1591 USA

For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com

ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3

telephone 519 758–8450, fax 519 758–0876, for service call 1 888 234–2726 (ASCO) www.asco.ca

Operator’s

Manual

7000 Seri es ATS

Automatic Transfer Switches

J–de si gn , 260, 400, & 600 A

DANGER is used in this manual to warn of high

voltages capable of cau si n g shock , burns, or death .

WARNINGisusedinthismanualto

warn of possible personal injury.

CAUTIONisusedinthismanualto

warn of possible equipment damage.

260 amp. size

Refer to the outline and wiring drawings provided

with your 7000 Serie s ATS for all installation and

connection details and accessories.

Refer to Group 5 Controller User’s Guide

381333–126 for ATS status display messages, time

delays, pickup & dropout settings, and adjustments.

Rating Label

Eac h autom atic transfer switc h (ATS) has a rating label to

define the loads and fault circuit withstand/closing ratings.

Refer to the lab el on the transfer switc h for specific values .

Do not exceed the values on the rating label.

Exceeding the rating can cause personal injury

or serious equipment damage.

Namepl ate

The Transfer Switch nameplate includes data for each

specific ASCO 7000 Series ATS. Use the ATS only within

the limits shown on this nameplate.

An experienced licensed electri cian must i nstall the ATS.

TABLE OF CONTENTS

section-page

INSTALLATION 1-1........................

Mounting a nd Line Connections 1-1.........

Auxiliary Circuits and Harness 1-2...........

Engine Starting Contacts 1-2...............

Functional Test 1-2 through 1-5..............

TESTING & SERVICE 2-1..................

Transfer Test 2-1..........................

Preventive Maintenance 2-1................

Disconnecting the Controller 2-1............

Manual Load Transfer 2-2..................

Trouble-Shooting 2-2......................

INDEX back cover.........................

Summary of content (10 pages)

PAGE 1
7000 Series ATS Automatic Transfer Switches J–design, 260, 400, & 600 A Operator’s Manual DANGER is used in this manual to warn of high voltages capable of causing shock, burns, or death. WARNING is used in this manual to warn of possible personal injury. Refer to the outline and wiring drawings provided with your 7000 Series ATS for all installation and connection details and accessories.
PAGE 2
Catalog Number Identification A typical Catalog Number is shown below with its elements explained.
PAGE 3
SECTION 1 INSTALLATION Testing Power Conductors ASCO 7000 Series Automatic Transfer Switches (ATSs) are factory wired and tested. Field installation requires requires mounting and connection of service cables, and auxiliary control circuits (if required). Do not connect the power conductors to the transfer switch until they are tested. Installing power cables in conduit, cable troughs and ceiling-suspended hangers often requires considerable force.
PAGE 4
INSTALLATION (continued) Engine Starting Contacts All customer connections, including the engine control contact connections, are located on terminal block TB which is mounted on the top right side of the enclosure. Refer to the wiring diagram provided with the automatic transfer switch and connect the engine start wires to the appropriate terminals. See Figure 1–1 and Table A. Table A. Engine start connections.
PAGE 5
INSTALLATION (continued) 1 – Manual Operation Test left side of transfer switch A detachable maintenance handle is provided on the frame of the Transfer Switch for maintenance purposes only. Manual operation of the transfer switch should be checked before it is energized (operated electrically). Do not manually operate the transfer switch until both power sources are disconnected: open both circuit breakers. 1. maintenance handle After deenergizing both power sources, open the enclosure door.
PAGE 6
INSTALLATION GREEN RED GREEN RED (continued) observe these lights Figure 1-4. Standard controls and indicators. Close the normal source circuit breaker. The Transfer Switch 1 Connected To Normal and the Normal Source Accepted lights should come on. 2 – Voltage Checks First check nameplate on transfer switch; rated voltage must be the same as normal and emergency line voltages.
PAGE 7
INSTALLATION GREEN RED GREEN RED (continued) operate this switch observe these lights Figure 1-5. Standard controls and indicators. 3 – Electrical Operation The Transfer Switch Connected 1 To Normal and Normal Source Accepted lights should be on. This procedure will check the electrical operation of the Automatic Transfer Switch. See Figure 1–5. Turn and hold Transfer Control switch clockwise to Transfer Test until the engine starts 2 and runs (within 15 sec.).
PAGE 8
SECTION 2 TESTING & SERVICE TRANSFER TEST DISCONNECTING THE CONTROLLER Operate the 7000 Series ATS at least once a month by following the five–step Electrical Operation Transfer Test procedure on page 1–5. The harness disconnect plugs are furnished for repair purposes only and should not have to be unplugged.
PAGE 9
TESTING & SERVICE MANUAL LOAD TRANSFER (continued) 2. Use the maintenance handle to manually operate the transfer switch to the opposite source. See Manual Operation on page 1–3. This procedure will manually transfer the load if the controller is disconnected. 3. Then remove the maintenance handle. See page 1–3. Do not manually operate the transfer switch until both power sources are disconnected: open both circuit breakers. Verify that the maintenance handle has been removed before proceeding! 4.
PAGE 10
INDEX A auxiliary circuits, 1–2 C cable lugs, 1–1 preparation, 1–1 catalog number, inside cover cleaning, 2–1 connections line, 1–1 contact position indicators, 1–3 controller, 1–1 disconnecting, 2–1 see Controller User’s Guide grounding, 1–1 E electrical operation, 1–5 Emergency Source Accepted light, 1–4, 1–5 engine starting contacts, 1–2 F frequency, generator, 2–2 functional test, 1–2, 1–3, 1–4, 1–5 G ground, controller, 1–1 ground lugs, inside front cover H harness, 1–1 disconnect plugs, 2–1 I