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Emerson ASCO 7000 Series Operator's Manual

Automatic transfer switches h–design 600 through 1200 amps
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Table of Contents

Operator's
Manual
TABLE OF CONTENTS
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . .
Mounting and Line Connections
Auxiliary Circuits and Harness
Engine Starting Contacts
Functional Test
. . . . . . . . . . . . .
TESTING & SERVICE
Transfer Test
. . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive Maintenance
Disconnecting the Controller
Manual Load Transfer
Trouble-Shooting
. . . . . . . . . . . . . . . . . . . . . .
INDEX
. . . . . . . . . . . . . . . . . . . . . . . . .
Note: Refer to the outline and wiring drawings
provided with your 7000 Series ATS for all
installation and connection details and accessories.
An experienced licensed electrician must install the ATS.
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)
Cross Reference RA Part Number PP2491
Automatic Transfer Switches
H–design 600 through 1200 amps
section-page
1-1
. . . . . . . . .
1-1
. . . . . . . . . . .
1-2
. . . . . . . . . . . . . . .
1-2
1-2, 1-3, 1-4, 1-5
. . . . . . . . . . . . . . . . . .
2-1
2-1
. . . . . . . . . . . . . . . .
2-1
. . . . . . . . . . . .
2-1
. . . . . . . . . . . . . . . . . .
2-2
2-2
back cover
600---1000 amp. size
7000 Series ATS
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.
CAUTION is used in this manual to warn
of possible equipment damage.
Refer to Group 5 Controller User's Guide 381333–126
for ATS status display messages, time delays, pickup
& dropout settings, and adjustments.
www.asco.ca
1200 amp. size
381333–202 C
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Summary of Contents for Emerson ASCO 7000 Series

  • Page 1 Cross Reference RA Part Number PP2491 7000 Series ATS Operator’s Automatic Transfer Switches Manual H–design 600 through 1200 amps TABLE OF CONTENTS DANGER is used in this manual to warn of high section-page voltages capable of causing shock, burns, or death. INSTALLATION .
  • Page 2 Rating Label Nameplate The Transfer Switch nameplate includes data for each Each Automatic Transfer Switch contains a rating label to specific 7000 Series ATS. Use the switch only within the define the loads and fault circuit withstand/closing ratings. limits shown on this nameplate. A typical Catalog Number Refer to the label on the Transfer Switch for specific values.

  • Page 3: Transfer Switch

    field connections ground lug terminal block TB Transfer Control & lights power connections Group 5 Controller Transfer Switch power connections 1200 amp. size in typical enclosure with location of customer connections...

  • Page 4: Installation

    SECTION 1 INSTALLATION ASCO 7000 Series Automatic Transfer Switches (ATSs) Testing Power Conductors are factory wired and tested. Field installation requires Do not connect the power conductors to the transfer requires mounting and connection of service cables, and switch until they are tested. Installing power cables in auxiliary control circuits (if required).

  • Page 5: Engine Starting Contacts

    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.

  • Page 6: Manual Operation Test

    INSTALLATION (continued) 1 – Manual Operation Test 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.

  • Page 7: Voltage Checks

    INSTALLATION (continued) GREEN observe these lights GREEN Figure 1-4. Standard controls and indicators. Close the normal source circuit breaker. The Transfer Switch 2 – Voltage Checks Connected To Normal and the First check nameplate on transfer switch; rated voltage Normal Source Accepted lights should come on.

  • Page 8: Electrical Operation

    INSTALLATION (continued) operate GREEN this switch observe these lights GREEN Figure 1-5. Standard controls and indicators. 3 – Electrical Operation The Transfer Switch Connected To Normal and Normal Source This procedure will check the electrical operation of the Accepted lights should be on. Automatic Transfer Switch.

  • Page 9: Testing & Service

    SECTION 2 TESTING & SERVICE TRANSFER TEST DISCONNECTING THE CONTROLLER Operate the 7000 Series ATS at least once a month by The harness disconnect plugs are furnished for repair following the five–step Electrical Operation Transfer purposes only and should not have to be unplugged. If Test procedure on page 1–5.

  • Page 10: Troubleshooting

    TESTING & SERVICE (continued) MANUAL LOAD TRANSFER 2. Use the maintenance handle to manually operate the transfer switch to the opposite source. See Manual This procedure will manually transfer the load if the Operation on page 1–3. controller is disconnected. 3.
  • Page 11 INDEX auxiliary circuits, 1–2 inspection, 2–1 parts, 2–1 installation, 1–1 phase rotation check, 1–4 indicators, contact position, 1–3 problem, 2–2 cable lugs, 1–1 preparation, 1–1 labels, rating label, inside cover field terminal block TB, 1–2 catalog number, inside cover rating, inside front cover replacement parts, 2–1 cleaning, 2–1 lights, 1–4, 1–5...

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