Emerson 7ACTB manual Functional Test, Voltage Checks, Use extreme caution when using a meter

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INSTALLATION (continued)

GREEN

RED

RED

RED

RED

observe these lights

GREEN RED

Figure 1-3. Standard controls and indicators.

Functional Test

Read all instructions on the Wiring Diagrams and labels affixed to the ACTB. Note the control features that are provided and review their operation before proceeding.

After installing the ACTB check the following:

–Bypass Handle should be in the OPEN position.

–Isolation Handle should be in the CLOSED position.

–CN transfer switch should be CLOSED.

–CE transfer switch should be OPEN.

If handles are not in correct positions, follow instructions for Bypassing and Isolating the automatic transfer switch in Section 3. Do not force the handles. Electrical interlocks prevent a wrong sequence of operation.

1 – Voltage Checks

First check nameplate on transfer switch; rated voltage must be the same as normal and emergency line voltages.

Close the normal source circuit breaker. The Transfer Switch

1Connected To Normal and the Normal Source Accepted lights should come on.

Use an accurate voltmeter to check phase to phase and

2phase to neutral voltages pres- ent at the transfer switch normal source terminals.

Close the emergency source circuit breaker. Turn the Engine Control switch to Run to start

3the generator. The Transfer Switch Connected To Normal & Emergency Source Accepted lights should come on.

Use an accurate voltmeter to check phase to phase and

4phase to neutral voltages pres- ent at the transfer switch emer- gency source terminals.*

Use extreme caution when using a meter

Use a phase rotation meter to

A B C

to measure voltages. Do not touch power

terminals; shock, burns, or death could result !

Perform steps 1–6 at the right. Observe the status lights. See Figure 1–3.

■Black square means light is on.

❐White square means light is off.

*If necessary, adjust voltage regulator on generator per the manufacturer’s recommendations. The ACTB will respond only to rated voltage specified on the nameplate.

Now continue to 2 – Electrical Operation on next page.

1---3

5 check phase rotation of emer- gency source; it must be the same as the normal source.

Turn Engine Control switch to Auto to stop the generator. The Emergency Source Accepted

6light should go off. Then put the starting control selector switch (on generator set) in automatic position. Close enclosure door.

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Contents Rating Label NameplateCatalog Number Identification 1200Installation Remove three Shipping Angles From the Transfer SwitchRemove the Shipping Skid Supporting foundation and mountingInstallation Functional Test Use extreme caution when using a meterVoltage Checks Turn and hold Transfer Control switch clockwise to Transfer Electrical OperationTesting & Service Preventive MaintenanceDisconnecting the Controller Transfer TestTesting & Service Trouble-Shooting ChecksTROUBLE-SHOOTING Maintenance HandleBypassing & Isolating PushBypass Handle Turn it Clockwise Pull outTurn crank Counter Clockwise Until Window Shows Isolating the ATSTurn crank Clockwise Until Window Shows Turn crank clockwise until window shows Conn connectedBypass Handle Turn it Counter Clockwise You can only bypass to the same sourceThat the ATS is connected. Solenoid 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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