Emerson 250 Switch Auxiliary Inputs Dry Contacts, Control Status Output Dry Contacts

Page 14

UPS Electrical Installation

Switch Auxiliary Inputs Dry Contacts

Table 3

Circuit breaker or switch auxiliary contact Inputs

 

 

 

 

 

 

 

 

 

Terminal

 

Connects to

Description

 

Item

Block

Pin

(description of external item)

of interface

 

 

 

1

CB or Switch aux. contact,

Input, protected

 

 

 

closed = CB or switch is closed

 

 

 

 

 

Rectifier Input Breaker

TB0810

2

CB or Switch aux. contact, common

+24V, 10mA,

(RIB), Form C

current limited

 

 

 

 

 

 

3

CB or Switch aux. contact,

Input, protected

 

 

 

closed = CB or switch is open

 

 

 

 

 

 

 

 

1

CB or Switch aux. contact,

Input, protected

 

 

 

closed = CB or switch is closed

 

 

 

 

 

Maintenance Isolation

TB0811

2

CB or Switch aux. contact, common

+24V, 10mA,

Breaker (MIB), Form C

current limited

 

 

 

 

 

 

3

CB or Switch aux. contact,

Input, protected

 

 

 

closed = CB or switch is open

 

 

 

 

 

 

 

 

1

CB or Switch aux. contact,

Input, protected

 

 

 

closed = CB or switch is closed

 

 

 

 

 

Bypass Input Breaker

TB0812

2

CB or Switch aux. contact, common

+24V, 10mA,

(BIB), Form C

current limited

 

 

 

 

 

 

3

CB or Switch aux. contact,

Input, protected

 

 

 

closed = CB or switch is open

 

 

 

 

 

 

 

 

1

CB or Switch aux. contact,

Input, protected

 

 

 

closed = CB or switch is closed

 

 

 

 

 

Maintenance Bypass

TB0813

2

CB or Switch aux. contact, common

+24V, 10mA,

Breaker (MBB), Form C

current limited

 

 

 

 

 

 

3

CB or Switch aux. contact,

Input, protected

 

 

 

closed = CB or switch is open

 

 

 

 

 

Control Status Output Dry Contacts

Status signals are outputs through volt-free, normally open and normally closed contacts.

Table 4

Control status output contact

 

 

 

 

 

 

 

 

 

Terminal

 

Connects to

Description

Item

 

Block

Pin

(description of external item)

of interface

 

 

 

1

Other equipment input,

Relay contact, 12A, 250VAC, normally

 

 

 

closed = EPO not active

closed, rest position = closed

EPO Status

 

 

 

 

TB0823

2

Other equipment input, common

Relay contact, common

Form C

 

 

 

 

 

 

 

 

 

3

Other equipment input,

Relay contact, 12A, 250Vac, normally

 

 

 

closed = EPO active

open, rest position = open

 

 

 

 

 

 

 

1

Maintenance Bypass Cabinet,

Relay contact, 12A, 250Vac, normally

 

 

 

closed = load not on inverter

closed, rest position = closed

Maintenance

 

 

 

 

Maintenance Bypass Cabinet,

 

Bypass

 

TB0821

2

Relay contact, common

 

common

Enable Form C

 

 

 

 

 

 

 

 

 

 

3

Maintenance Bypass Cabinet,

Relay contact, 12A, 250VAC, normally

 

 

 

closed = load on inverter

open, rest position = open

 

 

 

 

2.3.2Load Bus Synch Connection

Table 5 Load Bus Synch connection

 

Terminal

 

Connects to

 

Item

Block

Pin

(description of external item)

Description

 

 

 

 

 

Analog Load

 

1

Phase A from LBS

Input to voltage dropping resistors

 

 

 

 

TB0826

3

Phase B from LBS

Input to voltage dropping resistors

Bus Sync. (LBS)

 

 

 

 

 

 

5

Phase C from LBS

Input to voltage dropping resistors

 

 

 

 

 

10

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Contents Liebert NXL Product Warranty Registration Contacting Liebert for SupportTable of Contents Figures Important Safety Instructions Page Preliminary Checks SINGLE-MODULE Mechanical InstallationIntroduction Environmental ConsiderationsPositioning System CompositionMaintenance Bypass Cabinet Cable EntryExternal Protective Devices Power CablesUPS Electrical Installation Dual InputPower Cable Connection Procedure Top Cable EntryControl Cable and Communications External Interface Board connections layoutControl Status Inputs Dry Contact Dry ContactsEPO Input Dry Contact Remote EPO inputLoad Bus Synch Connection Switch Auxiliary Inputs Dry ContactsControl Status Output Dry Contacts Optional Equipment Single-Module System OptionsCommunication and Monitoring Installation Drawings Main components location, 250kVA Liebert NXL UPSTop View Doors Open Doors and Inner Skins Removed Outline drawing, 300kVA Liebert NXL UPS Front Front View Side View Front View Right Side View Front Doors Removed Front Detail a Battery & DC Parameters SpecificationsLiebert NXL UPS specifications 250 300 400 Input Parameters250 300 400 Physical Parameters and Standards, in mm Environmental ParametersCurrent ratings-rectifier input Current ratings-batteryLiebert NXL system and inverter efficiencies Current ratings-bypass inputRectifier Input BatteryRecommended conduit and cable sizes Bypass InputRecommended lug sizes Series Cable Size One Hole Two HoleTi n Ne tIti That
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Manual 35 pages 5.73 Kb

250 specifications

Emerson 250 and 350 are cutting-edge products that represent a significant leap in automation technology and process control systems. Designed with a focus on versatility, reliability, and efficiency, these systems are tailored to meet the demands of various industries, including manufacturing, oil and gas, and chemical processing.

One of the standout features of the Emerson 250 and 350 is their advanced control algorithms. These algorithms enable precise control of processes, allowing for enhanced stability and improved operational efficiency. By optimizing real-time decision-making, the systems can adapt to variable operating conditions, thereby reducing downtime and enhancing productivity.

The Emerson 250 and 350 are equipped with intuitive user interfaces that streamline operation and monitoring. These interfaces provide operators with easy access to critical data and insights, facilitating informed decision-making. The systems’ graphical displays and touch-screen capabilities enhance user experience, making it easier to configure settings and respond to alerts promptly.

Moreover, both models are built with robust communication protocols, ensuring seamless integration with existing infrastructure. This adaptability enables businesses to leverage their current investments in technology while expanding their automation capabilities. The systems support various communication standards, including OPC, Ethernet/IP, and Modbus, ensuring they can connect effortlessly to other devices and databases.

Another key characteristic of the Emerson 250 and 350 is their scalability. Designed to grow alongside a business, these systems can be expanded or modified to accommodate increasing operational demands. This flexibility is critical in today's fast-paced industrial environment, where agility and responsiveness are paramount.

In terms of reliability, the Emerson 250 and 350 boast rugged designs that withstand the harsh conditions often present in industrial settings. With features like enhanced environmental resistance and fail-safe mechanisms, these systems ensure continuous operation and minimize the risk of failures, providing peace of mind for operators.

In summary, the Emerson 250 and 350 stand out with their advanced control algorithms, user-friendly interfaces, robust communication capabilities, scalability, and reliability. These characteristics make them ideal solutions for businesses aiming to improve automation and process control while adapting to the ever-evolving demands of the industrial sector.
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