MX250 Microprocessor Controller

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MX250 Microprocessor Controller
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Overview

The MX250 microprocessor is standard with the entire CTS product family. The MX250 Series includes all the standard features of the MX150 Controller while offering expanded programmability and field adaptability. The high reliability and ease of unattended operation makes it ideal to use in a wide range of mission critical applications.

The MX250 microprocessor

is standard with the entire CTS product family

The High Reliability

and ease of unattended operation makes it ideal to use in a wide range of mission critical applications

Features At A Glance

Features and Benefits

Available to support ALL transfer modes:
–Open, Delayed and Closed Transition
User-friendly programmable engine exerciser,with or without load, at ANY interval in a one-year period
A wide variety of operating voltages available in a single controller for most domestic and international applications
Real-time display of ATS status, including active timer(s)
Multiple levels of user-defined password protection
Serial communications allowing connectivity with other ATS's, Caterpillar® Switchgear, and SCADA systems
Time-tested synchronous logic automatically measures phase angle and frequency allowing disturbance-free transfer
Unsurpassed statistical ATS/System monitoring available in real-time
Elevator pre-signal contacts automatically bypassed if the selected source fails, minimizing time an elevator is without power
Universal Motor Disconnect (UMD) sends a pre-signal, post-signal or both to any motor control center. Not bypassed in an outage,the UMD ensures safety in the event of a single phase loss
Voltage unbalance detection standard
Also includes all standard MX150 features
Back-lit/temperature compensated LCD display (includes the display of source voltage and frequency, exercise time, delay options and source condition)
Close differential 3-phase under-voltage sensing of source 1, factory standard setting 90% pickup, 80% dropout; under-frequency sensing of source 1 factory setting 95% pickup;voltage and frequency sensing of source 2,factory standard setting 90% pickup voltage,95% pickup frequency.
All factory settings are operator adjustable.
LED indicators for ATS position and source availability
Plant exerciser clock (configured for 1, 7, 14 or 28 day run selections)
Built-in time delays with count-down display
Push button to bypass time delay transfer/retransfer
Transfer/commit/no commit selection In-phase monitor
Event logging (last 16 events)
A test is standard (fast test/load/no load) to simulate source 1 failure – automatically bypassed should source 2 fail.

Full Specifications Standard Equipment

Product Specifications for MX250 Microprocessor Controller

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Metric

Technical Summary

Rating Range	Switch Dependent Switch Dependent
Transfer Type	Application Dependent Application Dependent
Switch Type	Application Dependent Application Dependent

Controller Specifications

Undervoltage Dropout for Source 1 and Source 2	75-98% of nominal 75-98% of nominal
Undervoltage Restore for Source 1 and Source 2	85-100% of nominal 85-100% of nominal
Underfrequency Dropout for Source 1 and Source 2	90-100% of nominal 90-100% of nominal
Delay for Engine Cool Down (U)	0-60 minutes 0-60 minutes
Delay Transfer to Nonpreferred Source (W)	0-5 minutes 0-5 minutes
Delay NeutralTransition Time Delays (DT,DW)	0-10 minutes 0-10 minutes
Storage Temperature	(-30˚C - 75˚C ), -22˚F - 167˚F (-30˚C - 75˚C ), -22˚F - 167˚F
Operating Temperature Ambient	40 - 400 amp molded shell (-20˚C to 65˚C) , -4˚F to 149˚F 40 - 4000 amp all others (-20˚C to 60˚C), -4˚F to 149˚F 40 - 400 amp molded shell (-20˚C to 65˚C) , -4˚F to 149˚F 40 - 4000 amp all others (-20˚C to 60˚C), -4˚F to 149˚F

MX250 Microprocessor Controller Standard Equipment

Performance

ESD immunity test per EN61000-4-2 Class B(Level 4)

Electrical fast transient/burst immunity test perEN61000-4-4

Conducted and Radiated Emissions per EN55022Class B (CISPR11) (Exceeds EN55011 & MILSTD461 Class 3)

Voltage dips and interruption immunity EN61000-4-11

Conducted immunity test per EN61000-4-6(ENV50141)

Ringing wave immunity per IEEE 472(ANSIC37.90A)

Surge immunity test per EN61000-4-5 IEEE C62.41

UL, CSA and IEC listed

Radiated RF, electromagnetic field immunitytest per EN61000-4-3 (ENV50140) 10v/m

User Friendly Operation

Weather and tamper resistant touchpad

Through-the-door programming and display

Multipurpose display: LEDs for continuous monitoring of switch position and source availability; a four line by twenty character LCD display for settings, functions, programming and annunciation

Simplified keypad entry – menu-driven system is designed for ease of use

Built-in diagnosis with displays for ease of troubleshooting

Additional Features

User settings are unaffected by power outages

Built-in programmable exerciser uses separate microcontroller with independent battery back-up to serve as clock/calendar – battery failure will not affect switch operation

Built-in electrical operator protection

Inputs are optoisolated for high electrical immunity to transients and noise

Source connection and transfer data logging

Separate line voltage components for controller isolation

Watchdog circuit for microprocessor operation

See how MX250 Microprocessor Controller compares against frequently compared products.

US
Metric

Electric Power MX250 Microprocessor Controller

Rating Range: Switch Dependent; Switch Dependent
Transfer Type: Application Dependent; Application Dependent
Switch Type: Application Dependent; Application Dependent

Selected Model

Electric Power MX150 Microprocessor Controller

Rating Range: Switch Dependent; Switch Dependent
Transfer Type: Application Dependent; Application Dependent
Switch Type: Application Dependent; Application Dependent

Model Details

Electric Power MX350 Controller

Voltage Unbalance on Dropout for Source 1 and Source 2: 5 to 20% of nominal; 5 to 20% of nominal
Delay NeutralTransition Time Delays (DT,DW): 0-10 minutes; 0-10 minutes
Control Power: 120 VAC; 120 VAC

Model Details

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MX250 Microprocessor Controller

Overview

The MX250 microprocessor

The High Reliability

Features At A Glance

Product Specifications for MX250 Microprocessor Controller

Technical Summary

Controller Specifications

MX250 Microprocessor Controller Standard Equipment

Performance

User Friendly Operation

Additional Features

See how MX250 Microprocessor Controller compares against frequently compared products.

Tools And Expert Help At Every Turn

Payment Calculator

Current Offers

Rental Options

Find Dealer

SpecSizer

Customer Value Agreements

Hire Similar Size

Information Library

Technical Resources

Cat Connect: Get More from Every Asset

Extended Service Coverage

Custom Power Solutions

assignment Product Brochures and More Are Ready to Download!

Caterpillar product brochures and other informational documents are available for your growing business.

Media Gallery

Photos

All

Check out current offers for the MX250 Microprocessor Controller

Project Financing

No project is the same - from the application to the power need. That's why we offer a range of project financing options.

Free Cat Remote Monitoring Asset Subscription

The Electric Power standard subscription will be free for a limited time.

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