Emerson 7ACTB Electrical Operation, Turn and hold Transfer Control switch clockwise to Transfer

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INSTALLATION (continued)

GREEN REDREDRED RED

observe

operate

these lights

this switch

GREEN

RED

Figure 1-4. Standard controls and indicators.

2 – Electrical Operation

This procedure checks electrical operation of the ATS.

Be sure to close the enclosure door

before proceeding to prevent personal injury

in case of electrical system fault.

Transfer Test

The ATS should be bypassed and isolated. Both normal and emergency sources must be available and the emergency source generator (if used) must be capable of being started; put engine starting control in automatic position. The Transfer Switch Connected to Normal light and the Normal Source Accepted light should be on.

1.Turn the Isolation Handle clockwise (approximately 7 turns) until the window shows TEST position.

NOTE: The engine generator may be signalled to start while turning the Isolation Handle. If emergency source is available, the ATS may operate to the emergency position. If it does, operate Retransfer Delay Bypass switch.

2.Perform steps 1–4 at right. Observe the status lights.

■Black square means light is on.

❐White square means light is off.

3.Turn the Isolation Handle clockwise (approximately 16 turns) to the CONN (connected) position.

4.Push in the Bypass Handle and turn it counterclock- wise until the OPEN indicator shows green.

This completes the Functional Test of the ACTB.

1---4

Turn and hold Transfer Control switch clockwise to Transfer

1Test until the engine starts and runs (within 15 sec.). The Emergency Source Accepted light should come on.

Transfer switch CE closes and then Transfer Switch CN opens (closed–transition overlap). The Transfer Switch Connected to

2Emergency light should come on and the Transfer Switch Con- nected to Normal light should go off (you might see and hear the brief overlap transfer).

Transfer switch will operate back to Normal position after Feature 3A time delay. For im- mediate retransfer turn Transfer

3Control counterclockwise to Retransfer Delay Bypass. The Transfer Switch Connected To Normal light should come on; Transfer Switch Connected to Emergency light should go off.

The engine–generator will stop after the Feature 2E time delay

4(unloaded running engine cool- down). The Emergency Source Accepted light should go off.

Load

Disconnect

Active

Load

Disconnect

Active

Load

Disconnect

Active

Load

Disconnect

Active

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Contents Nameplate Rating LabelCatalog Number Identification 1200Remove three Shipping Angles From the Transfer Switch InstallationRemove the Shipping Skid Supporting foundation and mountingInstallation Voltage Checks Use extreme caution when using a meterFunctional Test Electrical Operation Turn and hold Transfer Control switch clockwise to TransferPreventive Maintenance Testing & ServiceDisconnecting the Controller Transfer TestTrouble-Shooting Checks Testing & ServiceTROUBLE-SHOOTING Maintenance HandlePush Bypassing & IsolatingBypass Handle Turn it Clockwise Pull outIsolating the ATS Turn crank Counter Clockwise Until Window ShowsTurn crank clockwise until window shows Conn connected Turn crank Clockwise Until Window ShowsYou can only bypass to the same source Bypass Handle Turn it Counter ClockwiseThat the ATS is connected. Solenoid Interlock prevents incorrect operationSee 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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