Murphy Automatic Engine Controller Ea150 Users ManualEA 94013B Art NEW Manual

EA150 to the manual 4f6d7758-483f-4ab7-a882-63b1cf037887

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Model EA150

■

Automatic Engine Controller with

Built-in SWICHGAGE®Instruments

And Hourmeter

■

Quick and Easy to Install

■

Advanced, Rugged, Reliable

Microprocessor Based Design

■

Very Competitive Low Cost

■

Operates On 12 or 24 Volt Systems

■

First-out Shutdown LED

Description

The EA150 Automatic Engine Controller

provides you with simple–yet sophisticated,

engine automation. It features basic auto-

matic start/stop capabilities plus other fea-

tures found on more sophisticated and

expensive controllers–all in an easy to

install panel.

The EA150 operates from 12 or 24 volt sys-

tems. It includes crank and rest cycles, sens-

ing circuit for crank disconnect and over-

speed, overcrank, and re-crank on false starts.

Four LEDs indicate first-out shutdown for:

low pressure, high temperature, overcrank

and overspeed. A fifth LED for engine run-

ning indicates when crank disconnect occurs.

The built-in oil pressure and water tempera-

ture SWICHGAGE®instruments provide visu-

al indication and can be set to initiate shut-

down on critical pressure and temperature.

The electromechanical quartz base hourme-

ter can record up to 9,999.9 hours. It is

housed in a shockproof case and built to be

rugged and durable for a long life.

A selector switch allows you to manually

select the operation sequence.

Features

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Compact Design

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Adjustable Overspeed circuit

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Adjustable Overcrank circuit

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Adjustable Shutdown Lockout Delay

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Adjustable Crank Disconnect Setpoint

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Engine Running Indication LED

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Re-Cranks Engine on False Starts

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Advanced Microprocessor Technology

Offers Reliability, Small Size, and Low Cost

■

Convenient Hat Bracket design for simple

engine mounting

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Built-in Hourmeter

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Temperature SWICHGAGE®

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Oil Pressure SWICHGAGE®

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Operates On 12 or 24 volt systems

Specifications

Power Input

12 or 24 VDC.

Operating Temperature

-40 to 185°F (-40 to +85°C).

Outputs

• 5 A relay for cranking and fuel valve.

• 300 mA transistor for engine annunciation.

Cycle Crank Timer

Up to 8 attempts. Re-Cranks on false

starts (fixed 30 seconds).

Crank/Rest Cycle Timing

4 to 25 seconds (adjustable).

Shutdown Time Delay

1 to 25 seconds (adjustable). Locks out

low oil and high temperature on start-up.

Crank Disconnect Speed Setting

From 30 to 8500 Hz.

Overspeed Trip Point Setting

From 30 to 8500 Hz.

Magnetic Pickup Input

Requires 2V rms minimum.

Shipping Weight

5 lbs. 4 ozs. (2.38 kgs.).

Shipping Dimensions

9-3/4 x 9-1/2 x 6 in. (248 x 241 x 152 mm).

EA-94013B

Revised 09-96

Catalog Section 30

(00-02-0083)

Automatic Engine Controller

Sequence of Operation

NOTE: The following sequence is pre-pro-

grammed into the EA150 Engine Automatic.

Operation Sequence with Panel in Auto

When the EA150 receives an automatic start

signal the engine will begin to crank and the

Shutdown Lockout time delay will begin. The

Shutdown Lockout Delay does two functions. It

allows the EA150 to disregard signals from the

low oil pressure and high temperature SWICH-

GAGE®at engine start-up. Also, if the engine

false starts, the re-crank will be delayed to

allow the engine to stop moving before engag-

ing the starter. If the engine fails to start after

the set number of crank and rest attempts, the

EA150 will indicate an overcrank condition by

turning on the Overcrank LED. The engine will

be locked out from any further start attempts.

NOTE: All shutdown conditions can be reset

by moving the selector switch into the OFF

position and back into the AUTO position.

Once Crank Disconnect speed is reached the

Engine Running LED will turn on. The engine

will also run at full governed speed while in

operation. If the engine speed exceeds the

Overspeed setpoint, the EA150 will initiate an

engine shutdown and Overspeed LED will turn

on. The engine will be locked out from any fur-

ther start attempts.

If a low oil pressure or high temperature condi-

tion occurs while the engine is running, the

EA150 will shutdown the engine and the

appropriate LED will turn on. The engine will

be locked out from any further start attempts.

NOTE: The Shutdown Lockout Delay must

have expired to get a shutdown on low oil pres-

sure and high temperature.

Operation Sequence with Panel in Test

When the selector switch is placed in the TEST

position, an automatic start signal is simulated.

Therefore, the controller will operate the same

as it does in AUTO. However, it will continue

to run as long as there are no signals from mon-

itored conditions or until the selector switch is

moved to the AUTO or OFF positions. Keep in

mind, it will still shutdown the engine if a mon-

itored condition occurs such as low oil pressure

or high temperature.

12 3 4 5

Relay

1

Relay

2

1

2

3

4

5

6

7

8

9

10

11

12

To Starter

Relay**

131415

To Solenoid

Fuel Valve**

Auto

Off

Test

Selector Switch

Magnetic

Pickup

Low Oil

Pressure

High

Temperature

Hourmeter

Fuse Lead

To Battery (+)

Ground Customer Wiring

Start/Stop*

Contact

Shielded

Cable

* Close to start and run. Open to stop.

** When using the EA150 with inductive loads, we recommend

installing a suppression diode across all coils.

How to Order

Specify EA150.

LOW PRESSURE

HIGH TEMPERATURE

OVERCRANK

OVERSPEED

ENGINE RUNNING

TEST OFF AUTO

8-1/2 in.

(216 mm)

7 in.

(178 mm)

5-1/2 in.

(140 mm)

7-3/4 in.

(197 mm) 3 in.

(76 mm)

Dimensions

Typical Wiring Diagram

EA-94013B page 2 of 2

Warranty

A limited warranty on materials and workmanship is given with

this FW Murphy product. A copy of the warranty may be viewed

or printed by going to www.fwmurphy.com/support/warranty.htm

CONTROL SYSTEMS & SERVICES DIVISION

P.O. Box 1819; Rosenberg, Texas 77471; USA

+1 281 633 4500 fax +1 281 633 4588

e-mail sales@fwmurphy.com

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www.fwmurphy.co.uk

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Palmdale, California 93551-1442; USA

+1 661 272 4700 fax +1 661 947 7570

e-mail sales@murphyswitch.com

www.murphyswitch.com

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.

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Campbellfield, Vic 3061; Australia

+61 3 9358 5555 fax +61 3 9358 5558

e-mail murphy@macquarrie.com.au

FW Murphy

P.O. Box 470248

Tulsa, Oklahoma 74147 USA

+1 918 317 4100

fax +1 918 317 4266

e-mail sales@fwmurphy.com

www.fwmurphy.com

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