Eaton LMR PLUS Manual

LMR PLUS Electric Fire Pump Controllers with Transfer Switch

Features

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For more information visit: www.chfi re.com

BR05805063K/K

January 2012

FT80 Reduced Voltage - Wye Delta (Star-Delta) Closed

The Automatic Transfer Switch Option may be 

added to any FD type Fire Pump Controller 

whenever automatic transfer from normal to 

alternate power is required.

The automatic Transfer Switch and Fire Pump 

Controller are mounted in the same enclosure 

or in separate enclosures to form one unit and 

interwired - depending on the horsepower and 

voltage required.

Product Description

Product Features

Engine Test Button

Logic Controller Board

Power I/O Board

Electrically and Mechani-

cally Interlocked

ATC-300 Plus

Automatic Transfer

Voltage and Frequency Sensing

Alarm Relay

Keypad Programming

LED Status Indication

An engine test button is provided on the ATC-

300 controller that can be used to test the 

Source 2 (generator) engine. The operator can 

select the engine run test time (0-600 minutes).

As well, a silence pushbutton is provided which 

de-energizes the alarm bell.

The FT Series transfer switch operating mecha-

nisms are mechanically interlocked to prevent 

the normal and alternate source from connect-

ing at the same time.

The switch operates upon signals received from 

the ATC-300 Plus controller.

The panel mounted, 

multi-function, micropro-

cessor based ATC-300 

Plus controller accurately 

monitors two power 

sources and provides the 

necessary intelligence 

to reliably operate the 

transfer switch through 

a series of programmed 

sensing and timing func-

tions.

The ATC-300 Plus controller membrane is 

equipped with seven keypad input buttons 

which are used to program the controller as well 

as set operating parameters.

Five LED’s indicate the status of the power 

sources. 

Source 1 Available      Source 1 Connected

Source 2 Available      Source 2 Connected

Unit Status

The FT Series Transfer Switches 

will perform an automatic 

transfer from Normal to Alter-

nate source when the Voltage 

drops to 85% of normal, or 

there is a loss of any phase 

and/or Phase Reversal.

The ATC-300 Plus continuously monitors the 

normal source for out of range setpoint values. 

When the source is outside the dropout set-

points, the source will become unavailable.

This prompts a transfer to the alternate source. 

Retransfer occurs when the normal source’s 

frequency and/or voltage return within pickup 

setpoints.

The alarm relay is de-energized to indicate an 

absence of an alarm state and energized to 

indicate the presence of an alarm condition. 

Alarm conditions include:

Improper Circuit Breaker Operation

Motor Operator Failure

Lockout

Failsafe Condition

Aborted Engine Test

Aborted Plant Exerciser

Unsuccessful in-phase Transition

The FT80 Transfer Switch Controllers use a 

method of connecting the pump motor windings 

into wye confi guration to start, then switching to 

a delta confi guration to run.

This reduces the starting current of the motor 

signifi cantly.

Wye-Delta starting is the only method that has 

a starting torque effi ciency of 100%. The FT80  

can be programmed for either fully automatic or 

semi-automatic operations.

Communication

The controller can be ordered with the option to 

display and output current values and status, 

on command, from various software protocols 

through the appropriate port(s).

Embedded Web Page

The web page is a multifunction tool that allows 

the user to view the controller’s current status, 

data values, programmed set points and history. 

It is accessed using the optional ethernet port.

USB Port / USB Drive

The logic controller board is equipped with a 

USB port that can be used to transfer data to 

and from a portable USB Drive device (memory 

stick).

Ethernet Port

An optional ethernet port is used for direct con-

nection to a computer for data transfer.

RS485 Serial Port

An optional RS485 serial port can be provided 

for communication to various external software 

programs.

Buzzer

A buzzer is mounted on the logic board which 

will operate if Fail to Start, Hardware Malfunc-

tion or any Common Alarm condition exists.

Transformers

Incoming line voltage is run directly to the I/O 

board from the incoming lines. The three trans-

formers mounted on the I/O board will accept 

voltage inputs between 100 and 600V. 

Customer Connection Terminals

Connection terminals for external customer

connections, are located on the top of the

Power I/O board. 

Output Relays

Seven socket mount, 

8 Amp, 2 Form - C 

(DPDT) output relays  

are provided standard  

on each power I/O board. 

They are designated for:

Common Alarm, 

Phase Failure, 

Phase Reversal, 

Pump Run, 

Startup, 

Acceleration

and Future # 1. 

Each socket has an LED mounted on the I/O 

board which indicates each relay’s coil status. 

Optional Output Relay Boards

T

here is provision to add up to eight additional 

relay outputs, via optional relay output boards. 

Each board contains a maximum of 2 addi-

tional relays. The Power I/O Board will accept a 

maximum of 4 optional boards which mount in a 

snap-on confi guration.

Each board provides an area for the user to 

label the terminal number and relay name.