Emerson 7ACTB manual Installation

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INSTALLATION (continued)

De–energize the conductors before making any line or auxiliary circuitry connections. Be sure that Normal and Emergency line connections are in proper phase rotation. Place engine gen- erator starting control in the OFF position. Make sure engine generator is not in operation.

Testing Power Conductors

Do not connect the power conductors to the ACTB until they are tested. Installing power cables in conduit, cable troughs, and ceiling-suspended hangers often requires considerable force. The pulling of cables can damage insulation and stretch or break the conductor’s strands. For this reason, after the cables are pulled into position, and before they are connected they should be tested to verify that they are not defective or have been damaged during installation.

Protect the switch from construction grit and metal chips to prevent malfunction or shortened life of the ACTB switch.

Connecting Power Conductors

A Wiring Diagram is furnished with the ACTB. All wiring must be made in accordance with the local codes. After the power cables have been tested, connect them to the appropriate terminal lugs on the Bypass Switch as shown on the wiring diagram provided with this ACTB. Make sure that the lugs provided are suitable for use with the cables being installed. Standard terminal lugs are solderless screw type and will accept the wire sizes listed on the drawings provided with the ACTB. Be careful when stripping insulation from conductors; avoid nicking or ringing the conductor. Remove surface oxides from conductors by cleaning with a wire brush. Follow conductor manufacturer’s instructions when aluminum conductor is used. Apply joint compound to conductor, then carefully wipe away excess compound. Tighten the cable lugs to the torque specified on the rating label.

Be sure that the Normal and Emergency power

connections are in proper phase rotation.

Bus Connections

If bus connection is used, use SAE grade 5 hardware to connect bus to appropriate terminal plates on bypass switching device. Wipe off bus surfaces before they are joined. If bus is dirty, gently clean surfaces with a non-flammable solvent. Avoid touching cleaned surfaces.

Do not breathe cleaning solvent vapors.

Use SAE grade 5 hardware and tighten the bolted joints to the torque specified in Table 2-1.

The reliability of the connection depends on how clean and how tight the joint is.

Table 2-1. Tightening torque values for bolted joints.

Bolt Diameter

Recommended

(Grade 5 hardware)

Tightening Torque

in inches

in foot pounds

5/16

12

3/8

20

1/2

50

5/8

95

Harnesses

All internal connections are made at the factory. The bypass switch, transfer switch, and control panel are joined together by an interconnecting wire harness. The disconnect plugs are already engaged on enclosed switches. For open–type switches, the plugs must be engaged after installation is completed. Align harness plugs with sockets in the control and push them together until they are secure.

Controller Ground

A grounding wire must be connected to the controller’s lower left mounting stud. Because the controller is mounted on the enclosure door, a conductive strap must be used between the enclosure and the door. This connection provides proper grounding which does not rely upon the door hinges.

Engine Starting Contacts

and Auxiliary Circuits

The engine control contact signal connections and auxiliary circuits are located on terminal block TB as shown on the Wiring Diagram provided with the ACTB. Connect the signal wires to the appropriate terminals.

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Contents 1200 Rating LabelNameplate Catalog Number IdentificationSupporting foundation and mounting InstallationRemove three Shipping Angles From the Transfer Switch Remove the Shipping SkidInstallation Use extreme caution when using a meter Functional TestVoltage Checks Electrical Operation Turn and hold Transfer Control switch clockwise to TransferTransfer Test Testing & ServicePreventive Maintenance Disconnecting the ControllerMaintenance Handle Testing & ServiceTrouble-Shooting Checks TROUBLE-SHOOTINGPull out Bypassing & IsolatingPush Bypass Handle Turn it ClockwiseIsolating the ATS Turn crank Counter Clockwise Until Window ShowsTurn crank clockwise until window shows Conn connected Turn crank Clockwise Until Window ShowsInterlock prevents incorrect operation Bypass Handle Turn it Counter ClockwiseYou can only bypass to the same source That the ATS is connected. SolenoidSee Controller User’s Guide Index

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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