Murphy 518APH, 518E User Manual

97020B page 1 of 2

Typical Wiring Tech Sheet for
Magnetic Switches and
TATTLETALE®Annunciators

97020B

Revised 04-08

Section 25

Typical Wiring Diagram with 117/117PH Magnetic Switch

Typical Wiring Diagram with MS2100 TATTLETALE

®

20P

Pressure

Distributor

Fuel Valve

Rack Pull Solenoid

(RP2300 Series shown)

Ignition coil

20T

Temperature

PB128S Stop Switch

Energized

to Run

C

117/117PH

S

B

+

Ammeter

BAT

ST

IGN

ACC

Start Switch

Hourmeter

+

+

Voltmeter

_

_

_

S

B

Starter

_

+

Battery

B

+

GRDSIG

Tachometer

To Magnetic Sensor,
Alternator “Tach”
Terminal, or
Signal Generator

B

+

Exciter

Alternator

20P

Pressure

MS2100MS2100

Typical Power

Adaptor

GAAS

Ignition Generator

“Kill”

Wire

1

4

5

Spark Plugs

Ignition Coils

6 2 3

16 2 3

4

5

20T

Temperature

97020B page 2 of 2

Typical Wiring Diagram with 760A and 761APH

Typical Wiring with 518PH TATTLETALE

®

FRANK W. MURPHY, LTD

Church Rd Laverstock
Salisbury SP1 1QZ UK
Phone: [phone] Fax: [phone]
E-mail: [e-mail]
Web site: www.fwmurphy.co.uk

COMPUTRONIC CONTROLS, LTD

41 - 43 Railway Terrace Nechells
Birmingham B7 5NG UK
Phone: [phone] Fax: [phone]
E-mail: [e-mail]
Web site: www.computroniccontrols.com

FW MURPHY INSTRUMENTS (HANGZHOU) CO. LTD

77 23rd Street
Hangzhou Economic & Technological Development Area
Hangzhou, Zhejiang 310018 China
Phone: [phone] Fax: [phone]

FW MURPHY INTERNATIONAL TRADING (SHANGHAI) CO., LTD.

Suite 1784, Tower B, City Center of Shanghai; 100 Zunyi Road
Shanghai, 200051 China
Phone: [phone] Fax: [phone]
E-mail: [e-mail]

FW MURPHY

P.O. Box 470248
Tulsa, Oklahoma 74147 USA
[phone] Fax: [phone]
E-mail: [e-mail]

INDUSTRIAL PANEL DIVISION

Fax: [phone]
E-mail: [e-mail]

MURPHY POWER IGNITION

Web site: www.murphy-pi.com

CONTROL SYSTEMS & SERVICES DIVISION

P.O. Box 1819
Rosenberg, Texas 77471 USA
Phone: [phone] Fax: [phone]
E-mail: [e-mail]

Printed in U.S.A.

www.

fwmurphy

.com

518PH

20T-F

Temperature

Energized

to Run

G NORNC

**

SW1 SW2

Jumper

*

Distributor

Fuel Valve

20P-F

Pressure

PB128S Stop Switch

Ignition coil

B

+

Ammeter

BAT

ST

IGN

ACC

Start Switch

CLOSEDLOOP™ Wiring

Hourmeter

_

+

_

+

Voltmeter

_

+

Battery

S

B

Starter

*

Tachometer

B

+

GRDSIG

To Magnetic Sensor,
Alternator “Tach”
Terminal, or
Signal Generator

_

B

+

Exciter

Alternator

Rack Pull Solenoid (RP2300 Series shown)

*

Jumper is to be removed when connecting a CLOSEDLOOP™ circuit.

**

Normally Opened terminal is available on the 518APH & 518E models.

Distributor

Flyback

Diode

Rack Pull
Solenoid
(RP2300
Series shown)

With terminal “G” grounded, the time delay operates only on start; after the initial
time delay, the shut-down circuit is operated immediately when SWICHGAGE
operates. With terminal “G” not grounded, the time delay operates both on start and stop.

20P

Pressure

PB128S Stop Switch

Fuel

Valve

20T

Temperature

Ignition
Coil

Flyback

Diode

Flyback

Diode

Normally Open

Relay with

Flyback Diode

Energized

760A/761APH

TD

GNONC BS

R

to Run

NOTE : The 760A cannot be adequately protected by a circuit breaker in a dead short condition with a battery
as the power source. The circuit breaker will take a finite amount of time to react, during which time the
circuit board of the 760A will be damaged beyond repair. Fuses are the optimal method for protecting the 760A.

®

contact

+

Ammeter

BAT

ST

IGN

ACC

Start Switch

Hourmeter

+

+

Voltmeter

_

_

_

S

B

Starter

_

+

Battery

B

+

GRDSIG

Tachometer

To Magnetic Sensor,
Alternator “Tach”
Terminal, or
Signal Generator

B

+

Exciter

Alternator