Emerson 7ACTB manual Turn crank Counter Clockwise Until Window Shows, Isolating the ATS

Page 9

BYPASSING & ISOLATING

(continued)

ISOLATING THE ATS

Isolating is required before any service work can be performed on the automatic transfer switch (ATS). Refer

CONN

position window

to Figures 3–4, 3–5, 3–6, and 3–7.

1.Bypass the closed automatic transfer switch contacts. See BYPASSING on page 3–1.

Align position indicator. Do not leave the handle in an intermediate position.

2.Turn the Isolation Handle counterclockwise (approx. 16 turns) until window shows TEST. The ATS can be tested now without load interruption (see page 2–1).

Bypass Switch

E

Turn crank

 

counter-

 

clockwise

L

until

 

window

 

shows

 

TEST.

 

 

N

Automatic Transfer

Switch

Figure 3–4. CONNECTED to TEST position.

3.Continue turning Isolation Handle counterclockwise (approx. 7 turns) until the window shows ISOLATE.

Bypass Switch

E

Turn crank

 

counter-

 

clockwise

L

until

 

window

 

shows

 

ISOLATE.

 

 

N

Automatic Transfer Switch

 

Figure 3–5. TEST to ISOLATE position.

 

4.Open the lower enclosure door. Pull out the side rail carriage then roll out the transfer switch. It can be safely inspected in this position. The transfer switch can also be removed for easier maintenance opera- tions.

TEST

ISOLATE

unfold crank

counterclockwise – draws out

transfer switching device

Figure 3–6. Isolation Handle.

NOTE: In the TEST position the transfer switching device solenoid operator circuit is energized through secondary disconnects.

Hazardous voltage capable of causing

electrical shock, burns, or death;

do not touch any control circuit terminals.

Figure 3–7.Transfer switching device isolated

and pulled out for inspection.

See page 2–2 for maintenance handle use. A lifting yoke kit 607064 is available to facilitate lifting by using an overhead crane or similar equipment.

Transfer Switch weighs 350–450 lbs.

Use lifting device 607064 or other device capable of lifting this weight to avoid personal injury or equipment damage.

3---2

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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 Use extreme caution when using a meter Functional TestVoltage Checks 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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