Magnum MMG 155 Specifications

230www m-p-llc comDIESEL GENERATORSMMG 125 • MMG 155MMG 180 • MMG 230OPERATING MANUAL

10SPECIFICATIONSRead this manual carefully before attempting to use this generator. The potential for property damage, personalinjury or death exists

11SPECIFICATIONSRead this manual carefully before attempting to use this generator. The potential for property damage, personalinjury or death exists

12SPECIFICATIONSRead this manual carefully before attempting to use this generator. The potential for property damage, personalinjury or death exists

13UNIT DIMENSIONSRead this manual carefully before attempting to use this generator. The potential for property damage, personalinjury or death exist

SERVICE LOCATIONS14

12347891011121315145615MAIN CONTROL PANEL FEATURES1. DOCUMENT HOLDER2. AIR FILTER METER: This gauge shows the condition of the air filter when the en

16MAGNUM DIGITAL CONTROLLER (MDC)The Magnum Digital Controller (MDC) is an enhanced digital generator controller used to start, stop and monitorthe op

17• “ALARM CANCEL” ButtonWhen an alarm is activated, either visually or audibly, press this button to silence or cancel the alarm.• “FAULT RESET” Butt

18ENGINE MONITORINGEngine information is shown on the Liquid Crystal Display (LCD) window in a toggling manner with the Generatorinformation after the

19The history of alarms or codes of the unit are saved in the digital controller. The mostrecent alarm or code is the first to be listed, with the ti

2INTRODUCTIONThis manual provides information and procedures to safely operate and maintain the engine and generator. Foryour own safety and protecti

20GENERATOR START UPBefore starting the generator, carefully read over the pre-start check list. Make sure that all of the items arechecked before try

214. Press the green “ENGINE START” button. The Prestart (Preheat) screen will be displayed (ifequipped) and a countdown will begin from 20 seconds t

10. Once the engine starts it will immediately begin speeding up to a constant 1800 rpm. On units withisochronous engine governing, the engine may hun

MAGNUM DIGITAL CONTROLLER (MDC) INFORMATION DISPLAYS, FUNCTIONS ANDRESETThe Magnum Digital Controller (MDC) constantly monitors vital generator and en

24MAGNUM DIGITAL CONTROLLER (MDC) - LIST OF POSSIBLE ALARMS/DESCRIPTIONSShut down and warning fault conditions and the displayed message are described

1 SPN:100 EngOil Press2 SPN:102 Boost Press3 SPN:105 Intake Temp4 SPN:110 EngCool Temp5 SPN:175 EngOil Temp6 SPN:629 Controller #17 SPN:636 PositionSe

26MAGNUM DIGITAL CONTROLLER (MDC) – HISTORYThe Magnum Digital Controller (MDC) controller stores a record of each important event into the history fi

27RESETTING OF THE “TIME TO SERVICE” REMINDERThe Magnum Digital Controller (MDC) will display the message “ WrnServiceTime” when the unit is due form

HIGH COOLANT TEMPERATURE SHUTDOWN1. Check the coolant level in the overflow jug.2. Restart the engine and read the coolant temperature to verify High

29GENERATOR OUTPUT CONNECTION LUGSThe generator is equipped with connection lugs behind the lug door next to the customer convenience outlets. Thelug

TABLE OF CONTENTS PageINTRODUCTION ...

30VOLTAGE SELECTOR SWITCH (MMG 125-155-180)The voltage selector switch is located on a panel attached to the generator behind the door located next to

4-POSITION VOLTAGE SELECTOR SWITCH (OPTIONAL)The optional four position voltage selector switch is located on a panel attached to the generator behind

32CHANGING OUTPUT VOLTAGE (MMG 230 ONLY)The output voltage can be changed by moving the shorting (link) board in the generator reconnect box. Thereco

33EMERGENCY STOP SWITCHThe generator is equipped with one emergency stop switch, located on the right rearcorner of the unit next to the control door.

34CUSTOMER CONVENIENCE OUTLETSThe generator is equipped with five convenience outlets. The large outlets are 240/120 VAC twist-lock receptaclesrated a

35REMOTE START TERMINAL BLOCKThe remote start terminal block is located just under the two 120V duplex convenience outlets. Itprovides a connection fo

36It is strongly recommended that ONLY a licensed electrician perform any wiring and any relatedconnections to the generator. Installation should be

37LIFTING THE GENERATORA large central lifting eye is located on the top of the generatorand the eye is connected to a central lifting frame inside th

38TOWING THE TRAILER1. Use the jack to raise or lower the trailer onto the hitch of the towing vehicle. Lock the hitch coupling andattach the safety

39AC WIRING DIAGRAM, MMG125, MMG155, MMG180BREAKER240V 50ABRN 240V 50ABREAKER240V 50ABREAKERBLK BLK BLK BLK BRN 5913610 147811121516T5BLK BLK PAIR BLK

4This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to

40AC WIRING DIAGRAM, MMG230BREAKER240V 50A240V 50ABREAKER240V 50ABREAKERBLK 10GABLK 10GABLK 10GABLK 10GABLK 10GABLK 10GA800ALT BLU 10GAGRN/YEL 10GA(T7

41DC WIRING DIAGRAM, MMG125, MMG155, MMG180PLUG LOCATION2 PIN PLUG (RPM)PINRPM INRPM GNDMAG INMAG REFD+PLUG LOCATION PINPOWER + DC+RELAY BOARDD+BOTTOM

42PLUG LOCATION2 PIN PLUG (RPM)PINRPM INRPM GNDMAG INMAG REFD+PLUG LOCATION PINPOWER + DC+RELAY BOARDD+BOTTOMPINE STOPBI16 PIN PLUG (BINARY INPUTS)BO1

AC WIRING DIAGRAM, MMG125, MMG155, MMG180For units equipped with an optional 4-position voltage selector switch.BRN240V 50ABREAKER240V 50ABREAKERBLKBL

44AC WIRING DIAGRAM, MMG230For units equipped with an optional 4-position voltage selector switch.BREAKER240V 50A240V 50ABREAKER240V 50ABREAKERBLK 10G

TRAILER LIGHTS WIRING DIAGRAM45

46NOTES:

47SERVICE LOGOIL GRADE AND TYPE: BRAND:COOLANT MIXTURE: BRAND:

REV: JPART NO: 2207010.20.08

5ENGINE SAFETYInternal combustion engines present special hazards during operation and fueling! Failure to follow thesafety guidelines described belo

6Towing a trailer requires care! Both the trailer and vehicle must be in good condition and securelyfastened to each other to reduce the possibility

7UNIT SERIAL NUMBER LOCATIONSRefer to the locations illustrated below to find the unit ID tag, V.I.N. tag and trailer ID tag on your unit. Importanti

SAFETY SYMBOL SUMMARYThis equipment has been supplied with numerous safety and operating decals. These decals provide importantoperating instructions

SPECIFICATIONSRead this manual carefully before attempting to use this generator. The potential for property damage, personalinjury or death exists i