Emerson 7ACTB manual Testing & Service, Transfer Test, Preventive Maintenance

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SECTION 2 TESTING & SERVICE

TRANSFER TEST

REPLACEMENT PARTS

Test the Automatic Closed–Transition Transfer Switch portion of the 7000 Series ACTB at least once a month. This procedure checks the electrical operation of the Transfer Switch and Control Panel. Turn the Engine Con- trol switch to Auto and put the engine–generator starting control (at the engine–generator set) in automatic mode.

In the following test the generator will start, the load will be transferred to the Emergency source, then back to the Normal source. An interruption to the load will occur, unless the the Transfer Switch contacts are bypassed be- fore the test. See pages 3–1 and 3–2 for bypassing & iso- lating instructions if no interruption of load is required.

Be sure to close the enclosure door

before proceeding to prevent personal injury

in case of electrical system fault.

Perform the four–stepElectrical Operation – Transfer Test procedure on page 1–4.

PREVENTIVE MAINTENANCE

Reasonable care in preventive maintenance will insure high reliability and long life for the 7000 Series ACTB. An annual preventive maintenance program is recom- mended.

ASCO Services, Inc. (ASI) is ASCO Power Technologies’ national service organization. ASI can be contacted at 1–800–800–2726 for informa- tion on preventive maintenance agreements.

Checklist for Yearly Inspection

Hazardous voltage capable of causing shock,

burns, or death is used in this switch.

Deenergize both Normal – Emergency power

sources before performing inspections!

❐Clean the ATS enclosure. Brush and vacuum away any excessive dust accumulation. Remove any mois- ture with a clean cloth.

❐Check the transfer switch contacts. Remove transfer switch barriers and check the condition of the contacts. Replace contacts when pitted or worn excessively. Reinstall the barriers carefully.

❐Maintain transfer switch lubrication. If switch is subjected to severe dust or abnormal operating con- ditions, renew factory lubrication on all movements and linkages. Relubricate solenoid operator if TS coil is replaced. Don’t use oil; order lubrication kit 75-100.

❐Check all cable connections & retighten them.

Replacement parts are available in kit form. When or- dering parts provide the Serial No., Bill of Material No. (BOM), and Catalog No. from the transfer switch name- plate. For service call ASCO Services at 1–800–800–2726; you will be put in contact with your local ASI office.

DISCONNECTING THE CONTROLLER

The harness disconnect plugs are furnished for repair purposes only and should not have to be unplugged. If the control panel must be isolated, follow these steps:

Bypass–Isolation Switch is energized! Do not touch isolation contact fingers; shock, burns, or death could result!

Disconnecting the Plugs

1.Bypass and Isolate the Automatic Transfer Switch.

2.Open the upper enclosure door.

3.Separate the two quick disconnect plugs by squeez- ing the latches. Do not pull on the harness wires.

Reconnecting the Plugs

1.The ATS should be still bypassed and isolated.

2.The two harness plugs and sockets are keyed. Care- fully align the plugs with the sockets and press straight in until the latches click.

3.Close the enclosure doors.

4.Follow Return to Service instructions on page 3–3.

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Contents Catalog Number Identification Rating LabelNameplate 1200Remove the Shipping Skid InstallationRemove three Shipping Angles From the Transfer Switch Supporting foundation and mountingInstallation Use extreme caution when using a meter Functional TestVoltage Checks Turn and hold Transfer Control switch clockwise to Transfer Electrical OperationDisconnecting the Controller Testing & ServicePreventive Maintenance Transfer TestTROUBLE-SHOOTING Testing & ServiceTrouble-Shooting Checks Maintenance HandleBypass Handle Turn it Clockwise Bypassing & IsolatingPush Pull outTurn crank Counter Clockwise Until Window Shows Isolating the ATSTurn crank Clockwise Until Window Shows Turn crank clockwise until window shows Conn connectedThat the ATS is connected. Solenoid Bypass Handle Turn it Counter ClockwiseYou can only bypass to the same source Interlock prevents incorrect operationIndex See Controller User’s Guide

7ACTB specifications

The Emerson 7ACTB is an advanced electronic device designed to optimize and streamline temperature and pressure monitoring in various industrial applications. Leveraging state-of-the-art technologies, the 7ACTB stands out for its precision, reliability, and ease of use.

One of the main features of the Emerson 7ACTB is its dual-channel capability, allowing simultaneous monitoring of two separate points. This flexibility makes it particularly useful in processes where multiple temperature or pressure readings are necessary for effective control and management. The device is equipped with high-resolution sensors that ensure accurate readings, minimizing the risk of errors that can lead to inefficiencies or safety concerns.

The 7ACTB utilizes cutting-edge communication protocols, including Modbus and HART, which facilitate easy integration with existing control systems. This enhances connectivity and ensures seamless data transfer between the device and central monitoring systems, allowing operators to make quick and informed decisions.

In terms of display, the Emerson 7ACTB features an intuitive user interface with a high-definition LCD screen that presents real-time data clearly and concisely. The menu navigation is straightforward, making it accessible for personnel with varying levels of technical expertise. Users can easily configure settings, calibrate the sensors, and review historical data logs, which are crucial for auditing purposes and troubleshooting.

Another significant characteristic of the Emerson 7ACTB is its robust construction, designed to withstand harsh industrial environments. Its housing is built with durable materials that offer protection against dust, moisture, and extreme temperatures, ensuring the device operates effectively in challenging conditions.

Furthermore, the device boasts advanced diagnostic capabilities, enabling proactive maintenance checks. This feature allows users to identify potential issues before they escalate, reducing downtime and maintenance costs.

The Emerson 7ACTB also adheres to rigorous safety and regulatory standards, making it compliant with industry requirements. Its reliability and performance have made it a preferred choice among engineers and operators looking to enhance process efficiency while maintaining safety and compliance.

In summary, the Emerson 7ACTB combines precision measurement, advanced technology, and robust design, making it an essential tool for effective temperature and pressure monitoring in various industrial settings.
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