Murphy MGC2000 User Manual

MGC-02029B

Revised 06-03

Catalog Section 75

(00-02-0500)

Generator Control System

FWMurphy

Description

The compact and powerful MGC2000 generator
control system features a unique, simple-to-install
and setup design and enhanced operation.
The control method for the MGC2000 may be
specified for using either the AS3000 Autostart
automatic controller or the 518APH electrically
tripped annunciator method.
The system is available in two basic configurations:

MGC2000

features mechanical gages:

- MGC2000-A Automatic Control: with

Murphy’s AS3000 Generator Controller.

- MGC2000-M Manual Control: with

518APH annunciator control.
Both configurations include standard AC

voltmeter, AC ammeter, and frequency meter.
Available for single-phase, standard three-phase,
and three-phase, re-configurable generators.

MGC2000E

features electric gages:

- MGC2000E-A Automatic Control: with

Murphy’s AS3000 Generator Controller.

- MGC2000E-M Manual Control: with

518APH annunciator control.
Both configurations include standard AC volt-

meter, AC ammeter, and frequency meter.
Available for single-phase, standard three-phase,
and three-phase, re-configurable generators.

Features

•

Dynamic design allows for easy installation
and full operation flexibility.

•

1/4 inch quick disconnect terminations

•

Shock mount assemblies to minimize damage

•

AC voltmeter and ammeter

•

Phase selector switch

•

Frequency meter: 45-65hz

•

Optional hourmeter; DC Voltmeter;
DC ammeter

•

First-out fault shutdown and indication

(AutoStart models only) of low oil pressure,
high temperature and auxiliary inputs

•

Inputs can be from engine-mounted fault
switches or panel-mounted SWICHGAGE

®

instruments.

•

Magnetic pickup or generator AC speed
sensing (AutoStart models only). For automat-

ic crank release and overspeed fault shutdown.
Speed calibration is automatic–adjustment free.
Additional switch inputs allow optional remote
control of crank disconnect and overspeed fault.

•

Generator AC Hz meter output: 0-1 mA.

•

User-friendly: Well-thought-out routine for
faster and easier set up.

•

Interfaces with existing equipment: functions
seamlessly with many other Murphy instru­ments and controls (AutoStart models only).

Specifications

Pressure Gage: 100°psi (680 kPa) [7 bar]
Mechanical Gage Pressure Connection: 1/8” NPT.
Electric Gage Pressure Connection: 2-wire.
Temperature Gage: 0-250°F (121°C)
Mechanical Gage Temperature Connection: 12ft.

(3.67 m) capillary tubing and sensing bulb.

Electric Gage Temperature Connection: 2-wire.
Enclosure: 16 Ga CRS powder coated.

Optional NEMA 4X Type Enclosure:

Water and dust tight indoor/outdoor enclosure
intended to protect enclosed equipment against
splashing, seepage, falling or hose-directed
water and severe external condensation.

AC Meters: AC ammeter and an AC voltmeter

and a frequency meter are standard features.
Ranges must be specified.

Single or Three Phase: Specify.
Control Method: may be specified:

- AS3000 Autostart automatic controller or

- 518APH Annunciator control method.

NOTE: Autostart method is highly recommended.

DC Voltage:

12 or 24 volt DC voltage must be specified.

MGC2000

■

New Dynamic Design Allows for
Easy Installation and Full Operation
Flexibility

■

Features Murphy’s AS3000 Engine/
Generator Controller

■

User-Friendly, Well Thought-out
Routine for Faster/Easier Setup

AS3000 Autostart

Generator Controller

Voltmeter

Hourmeter

Pressure Gage

Temperature Gage

Frequency Meter

1 - 3 Phase

Selector Switch

16 ga CRS Enclosure,

NEMA 4 Optional

AC Ammeter

AC Voltmeter

Power supply:

•

Continuous voltage range: 8-35 VDC

•

Brown out voltage < 5 VDC for 2 secs (recovery to 8V)

•

Blackout voltage: 0V for 50mS (from 10V, recovery to 5V)

•

Overvoltage withstand: 50 VDC for 5 seconds (to SAEJ1810 load

dump immunity

•

Reverse voltage withstand: 100 VDC continuous

Current consumption (standby): 50mA
Current consumption (max): 500mA (plus output loads)

DC Inputs:

•

Pressure, coolant temperature

•

Closed to negative DC (±3V) on fault auxiliary and charger faults

•

Remote start positive open from positive DC to start

•

Remote start negative close to negative DC (±3V) to start.

AC Inputs:

•

Magnetic pickup: 3 – 60 VAC, 50Hz – 10 kHz.

•

Generator AC: 600 VAC max (L-L or L-N), 50/60 Hz.

Outputs:

•

Fuel: positive DC (FET switched), 5A max.

•

Crank, preheat: positive DC (FET switched), 2A max.

•

Common alarm, fault lockout negative DC (semiconductor), 300mA max.

•

Generator Hz. meter: 0 – 1 mADC (@ 45–65Hz).

Physical:

•

Operating temperature: -10 to +65 oC

•

Relative humidity: 95% @ 60 oC

•

Environmental protection: AS3000U front: IP65, NEMA4

Vibration: ISO 88528 pt.9, & 3 axis 3g

Standard terminal blocks inside the MGC2000 enclosure. Booted type

grommets for a tight seal are available.

MGC-02029B page 2 of 4

Standard Enclosure Dimensions (all Models)

ASM3000 Controller Specifications

WARNING: Do not bundle AC and DC wiring together. It is required
to use separate conduit runs and keep apart by at least 2 inches.

6.81 in.

(173 mm)

Front View Side View

16-80 in. (427 mm)

0

5

75

25

0

10

A-C

VOLTS

OFF

3

A-C

AMPERES

HERTZ

1

REMOTE START

OVERCRANK

DEMAND
ENGINE RUNNING LOW OIL

PRESSURE

BATTERY

HIGH ENGINE

CHARGER FAIL

TEMPERATURE

PLANT FAIL/

OVERSPEED

AUXILIARY INPUT

OFF/

MANUAL

STOP

START

O

H

QUARTZ

AUTO
START

5

2

0

PSI

0

kPa

Hinges for front-opening door option shown in shaded areas.

0

0

35

PSI

0

70

0

kPa

S

R

U

0

5

5

7

0

5

3

0

0

7

0

5

5

7

5

2

0

0

1

0

0

1

0

0

5

3

PSI

0

0

7

0

kPa

9.25 in. (235 mm)

7.94 in.

(202 mm)

6.36 in.

(162 mm)

Bottom View

Mounting Pattern

16-80 in. (427 mm)

9.25 in.

(235 mm)

•

DC Voltmeter*

•

DC Ammeter*

•

Hourmeter*

•

Relays. 4 relays, wired for Preheat, Crank, Fuel, and Common Alarm

•

Keyswitch

•

Phase select switch, standard for 3-phase units, optional for single­phase units.

•

Emergency stop switch

•

NEMA-4X enclosure

•

Quick disconnect connectors

•

Hinged front panel

•

Magnetic pickup sensor

•

CT’s (current transformers)

•

User connections

•

If the Quick Disconnect option is selected, two quick disconnect con­nectors are provided on the rear of the enclosure, mating connectors
with 12 ft. (3.658 m) tagged leads are available.

•

If the Quick Disconnect option is not selected, grommeted holes are
provided for user’s cable entry. Connections via spade lugs will be
made to standard terminal blocks inside the MGC2000 enclosure.
Booted type grommets for a tight seal are available.

* The MGC2000 enclosure has provisions for two extra instruments only,

these two instruments can be selected in any combination.

MGC2000 System Options

MGC-02029B page 3 of 4

NEMA 4X Type Enclosure Dimensions

WARNING: Do not bundle AC and DC wiring together. It is required
to use separate conduit runs and keep apart by at least 2 inches.

13-31/32 in.

(355 mm)

10-5/8 in.
(270 mm)

MOUNTING

MGC
Panel

DETAIL

Wall or

Pedestal

A-C

VOLTS

OFF

1

REMOTE START
DEMAND

ENGINE RUNNING LOW OIL

BATTERY
CHARGER FAIL

PLANT FAIL/
AUXILIARY INPUT

STOP

0

5

7

5

2

0

0

5

3

PSI

7

0

kPa

RS

U

O

H

QUARTZ

A-C

AMPERES

OVERCRANK

PRESSURE
HIGH ENGINE

TEMPERATURE

OVERSPEED

OFF/

MANUAL

AUTO

START

START

0

5

5

2

5

0

0

0

1

0

5

3

PSI

0

0

0

kPa

HERTZ

18-63/64 in.

(480 mm)

0

5

5

7

0

0

7

5

7

5

2

0

0

1

0

0

1

0

0

5

3

PSI

0

0

7

0

kPa

18-1/2 in.
(470 mm)

5/16 x 1/2 in. (8 x 13 mm)

Mounting Holes, 4-Places

Screw

Washer

Nut

Lock

Washer

Washer

MGC
Panel

Wall or
Pedestal

MGC-02029B page 4 of 4

How to Order the MGC2000

Phases

1 = Single Phase
3 = Three Phase

Base Model

MGC2000

= Mechanical Gages

MGC2000E =Electric Gages

Controller

A = Autostart
M = Manual

DC Voltage

12 = 12 VDC
24 = 24 VDC

AC Voltmeter

300, 600
600D = 600/300 Dual Scale

Options

AM = DC Ammeter

(1)

VM = DC Voltmeter

(1)

HM = Hourmeter

(1)

RL = Relays
KS = Keyswitch
PS = Phase Select Switch (single phase only)
ES = Emergency Stop Switch
4X = NEMA 4X Enclosure
QD = Quick Disconnect Connectors
HF = Hinged Front
MP = Magnetic Pickup Sensor

(2)

CT = Provide CT’s

(2)

NOTE: Enter Options prefix in the listed order,
example: AMVMRLKS4XMP.

(1)

Select a maximum of 2 of these 3 items.

(2)

“Shipped Loose” items.

AC Ammeter

50, 60, 75, 100, 150, 200, 300, 400, 500, 600, 800, 1000,

1200, 1500, 2000, 3000, 4000

100D= 50/100 Dual Scale
200D= 100/200 Dual Scale
300D= 150/300 Dual Scale
400D= 200/400 Dual Scale
600D= 300/600 Dual Scale
800D= 400/800 Dual Scale
1000D= 500/1000 Dual Scale
1200D= 600/1200 Dual Scale
1600D= 800/1600 Dual Scale
2000D= 1000/2000 Dual Scale
3000D= 1500/3000 Dual Scale
4000D= 2000/4000 Dual Scale
5000D= 250/5000 Dual Scale

MGC2000

1 – A – 12

– 300 – 600D – AMVMRLKS4XMP

Accessories and Replacement Parts

Off-Equipment Mounting Kit

This kit allows off-equipment mounting of the ESPM, ES2PM and ESDPM pressure senders.
Recommended for protection from damaging vibration. Customer supplies hose and fittings.

Specify part number 30-00-0213 when ordering.

Sender Description
ESP 1-wire to ground sender

†

ES2P 2-wire ungrounded sender

†

ESDP 2-wire ungrounded sender, drives two (2) gages

†

ESPM 1-wire to ground sender††**
ES2PM 2-wire ungrounded sender††**
EST 1-wire to ground sender

*

ES2T 2-wire ungrounded sender

*

ESDT 2-wire ungrounded sender, drives two (2) gages

*

Connectors

Quick Disconnect mating connectors with 12’ tagged leads.

†

Thru 100 psi (689 kPa) [6.89 bar].

††

Ranges above 100 psi (689 kPa) [6.89 bar].

** Mounting off-equipment recommended.

Warranty

A two-year warranty on materials and workmanship is given with
this FWMurphy product. A copy of the warranty may be viewed
or printed by going to www.fwmurphy.com/warranty.asp

.

CONTROL SYSTEMS & SERVICES DIVISION

P.O. Box 1819; Rosenberg, Texas 77471; USA
[phone] fax [phone]

e-mail [e-mail]
MURPHY DE MEXICO, S.A. DE C.V.

Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
[phone] fax [phone]
Villahermosa Office [phone]
e-mail [e-mail]
www.murphymex.com.mx

FRANK W. MURPHY, LTD.

Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
[phone] fax [phone]
e-mail [e-mail]
www.fwmurphy.co.uk

MURPHY SWITCH OF CALIFORNIA

41343 12th Street West
Palmdale, California 93551-1442; USA
[phone] fax [phone]
e-mail [e-mail]
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.

MACQUARRIE CORPORATION

1620 Hume Highway
Campbellfield, Vic 3061; Australia
[phone] fax [phone]
e-mail [e-mail]

FWMurphy

P.O. Box 470248
Tulsa, Oklahoma 74147 USA
[phone]

fax [phone]
e-mail [e-mail]

www.fwmurphy.com

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Printed in U.S.A.

®