Sensata MAGNUM ENERGY MM Series Owner'S Manual Download Page 7

© 2016 Sensata Technologies

   1

   Introduction

1.0 Introduction

Congratulations on your purchase of an MM Series inverter from Sensata 
Technologies. This product is designed to be powerful, yet simple to use, and 
engineered to provide you with years of trouble-free use.
Please read this chapter to familiarize yourself with the features and bene

fi

 ts 

of your particular MM Series model.

Figure 1-1, MM Series Inverters

1.1 

MM Series Models

MM612 

– a 600-watt inverter with 7-amp AC transfer relay. The AC input and 

output are provided with pigtail wires to allow hardwiring to an AC distribution 
panel. Features neutral-to-ground switching for mobile applications.

MM1212 

– a 1200-watt inverter/charger with 12-amp AC transfer relay and 

70-amp, 4-stage PFC charger. The AC input and output are provided with pigtail 
wires to allow hardwiring to a main AC distribution panel and an inverter sub-
panel. Features neutral-to-ground switching for mobile applications. Includes 
a 15’ battery temperature sensor.

MM1212-G 

– a 1200-watt inverter/charger with 12-amp AC transfer relay 

and 70-amp, 4-stage PFC charger. AC input is provided by a standard 3 ft. 
plug-in power cord, and the AC output is provided by a standard GFCI two-
plug outlet. Features neutral-to-ground switching for mobile applications. 
Includes a 15’ battery temperature sensor.

1.2 

How an Inverter/Charger Works

An inverter takes direct current (DC) from your batteries and turns it into 
alternating current (AC), like you use at home. With MM Series models that 
have the battery charger feature, it also takes alternating current (when 
connected to a generator or to shorepower) and transforms it into direct 
current to recharge your batteries.
There are three modes of operation associated with this inverter:

Inverter Mode

: DC from the batteries is transformed into AC for powering 

your boat or RV accessories.

Standby Mode 

(MM1212/MM1212-G models): The unit operates as a battery 

charger to convert incoming AC power into DC power to recharge the batteries 
while continuing to pass the incoming AC power directly to the inverter’s 
output—to power any AC loads.

MM612/MM1212

MM1212-G

Summary of Contents for MAGNUM ENERGY MM Series

Page 1: ...Owner s Manual MM Series Inverters...

Page 2: ...Due to continuous improvements and product updates the images shown in this manual may not exactly match the unit purchased Restrictions on Use The MM Series inverter may only be used in life support...

Page 3: ...e inverter if it has been damaged Do not dismantle the inverter there are no user serviceable parts contained in this product Attempting to service the unit yourself could cause electrical shock Inter...

Page 4: ...ries can produce explosive gasses For compartment or enclosure installations always vent batteries to the outside Provide at least one inch of air space between batteries to provide optimum cooling Ne...

Page 5: ...6 AC Wiring MM612 MM1212 models 15 2 6 1 Neutral to Safety Ground Bonding 15 2 6 2 AC Wiring Connections 15 2 6 3 AC Wire Size and Overcurrent Protection 16 2 6 4 AC Input Wiring 17 2 6 5 AC Output Wi...

Page 6: ...ltage Change 23 Figure B 1 Series Battery Wiring 30 Figure B 2 Parallel Battery Wiring 31 Figure B 3 Series Parallel Battery Wiring 31 Figure C 1 Performing an Inverter Reset 33 List of Tables Table 1...

Page 7: ...a 15 battery temperature sensor MM1212 G a 1200 watt inverter charger with 12 amp AC transfer relay and 70 amp 4 stage PFC charger AC input is provided by a standard 3 ft plug in power cord and the A...

Page 8: ...nt of power they consume The rating is printed on the product s nameplate label usually located on its chassis near the AC power cord Even though it is difficult to calculate exactly how long an inver...

Page 9: ...tions on the inverter MM612 MM1212 models only b GFCI Outlet a Ground Fault Circuit Interrupter GFCI outlet with test and reset capability MM1212 G model only 8 Mounting Flanges x4 used to secure the...

Page 10: ...nding system This terminal accepts CU AL conductors from 14 AWG to 6 AWG 2 1 mm2 to 13 3 mm2 Figure 1 4 Left Side Features Back Side 13 14 1 6 Battery Temperature Sensor MM1212 MM1212 G A plug in exte...

Page 11: ...nuts installed on the DC terminals Battery Temperature Sensor MM1212 MM1212 G models only MM Series Owner s Manual If items appear to be missing or damaged contact your authorized Magnum Energy deale...

Page 12: ...re Minimum clearances can be reduced if airflow is increased but in no case should clearance around the inverter be less than 2 5 cm on all sides Safe Keep any flammable combustible material e g paper...

Page 13: ...anges to reduce vibration Refer to Figure 2 2 for unit dimensions After the inverter has been properly mounted proceed to the DC Wiring section Wall Mounted right side up Shelf Mounted right side up S...

Page 14: ...ata Technologies 8 Installation Figure 2 3 Basic Installation Diagram MM612 MM1212 AC Main Panel Overcurrent Device Battery Bank AC IN AC Loads DVD TV Tools AC Sub Panel AC Outlet AC OUT DC Ground DC...

Page 15: ...2016 Sensata Technologies 9 Installation Figure 2 4 Basic Installation Diagram MM1212 G Overcurrent Device Battery Bank AC IN AC Loads AC OUT DC Ground DC Disconnect DVD Tools TV...

Page 16: ...tional connection will contribute to additional voltage drops and these extra connections points may loosen during use All wiring to the battery terminals should be checked periodically once a month f...

Page 17: ...though an overcurrent protection device is still required Because the DC disconnect is not required a fuse is usually used as the overcurrent device in these installations These installations also do...

Page 18: ...using this inverter in a vehicle DO NOT connect the battery negative cable to the vehicle s safety ground Connect it only to the inverter s negative battery terminal If there are any non factory inst...

Page 19: ...correct DC voltage and polarity have been verified Info For optimum performance a minimum battery bank of 200 AHr is recommended Depending upon the type of batteries you use in the installation 6 or 1...

Page 20: ...ve terminal of the first battery string to the inverter s negative terminal see Figure B 3 for reference Battery Temperature Sensor MM1212 MM1212 G models only Connect the RJ11 connector end of the BT...

Page 21: ...le neutral to ground connections Therefore ensure that the inverter does not also connect neutral to ground while the other AC source is powering the inverter loads While inverting the MM Series inver...

Page 22: ...ected against overcurrent and have a means to disconnect the AC circuits Overcurrent protection must be provided by fuses or circuit breakers and must be properly sized and rated for the wire they are...

Page 23: ...Series AC wires colored black HOT IN white NEU IN and green AC GROUND respectively 4 After making the AC input connections secure the AC input cable by tightening the strain relief The AC input wiring...

Page 24: ...ound Fault Circuit Interruption GFCI Breakers If installing this inverter in the wiring system of a mobile application RV marine truck a GFCI may be installed to protect some branch circuits powered b...

Page 25: ...atus indicator is blinking indicating the inverter is providing AC power 5 Check the output voltage of the inverter by connecting a multimeter to the outlets powered by the inverter Verify the voltage...

Page 26: ...ing for an AC load i e electrical appliance Whenever an AC load greater than 5 watts is turned on the inverter recognizes the need for power and automatically starts inverting When there is no load or...

Page 27: ...a battery charger the inverter monitors the AC input for acceptable voltage Once the inverter has accepted the AC input the AC transfer relay will close and charging will begin Once charging the DC vo...

Page 28: ...ut is continually monitored Whenever AC power falls below the VAC dropout voltage 80 VAC default the inverter automatically transfers back to Inverter mode with minimum interruption to your appliances...

Page 29: ...l not be compensated and the battery will maintain the charge it had at a temperature of 77 F 25 C The life of the batteries may be reduced if they are subjected to large temperature changes when the...

Page 30: ...y excessive or unregulated voltage from solar panels or other external charging sources Overload During Inverter and Standby modes the inverter monitors the DC and AC current levels In the event of a...

Page 31: ...inals Blinks On once every second The inverter is on and is using energy from the battery The inverter is either providing full power to the loads connected to the inverter or it s in Search mode and...

Page 32: ...available on the MM612 model and is adjusted to 5W wakes up and inverts if loads exceed 5 watts on the MM1212 and MM1212 G models LowBatCutOut This setting determines when the inverter will turn off...

Page 33: ...nverter ensure cool air is available to pass through the inverter AC Overload status indicator blinks x4 4 secs The inverter has turned off because the connected loads are larger than the inverter s o...

Page 34: ...rger efficiency maximum NA 88 Power factor NA 0 95 Input current rated output NA 9 AAC Temperature compensation NA Yes with BTS General Features and Capabilities Protection circuitry Low High Battery...

Page 35: ...items are required depending upon the intended use of the inverter Auto Generator Start Controller The ME AGS N Automatic Generator Start controller Network version is designed to automatically start...

Page 36: ...est suited for the inverter installation and cost Use only the same battery type for all batteries in the bank For best performance all batteries should be from the same lot and date This information...

Page 37: ...ercurrent protection 12 volts 100 AHrs 12 volts 100 AHrs 12 volts 100 AHrs 12 volts 100 AHrs to 12 VDC inverter Series Parallel Wiring A series parallel configuration increases both voltage to match t...

Page 38: ...ne Off Season Storage When placing a coach boat into seasonal storage perform the following to ensure the system is properly shut down or properly configured for seasonal storage This is especially im...

Page 39: ...all battery power positive and negative to the inverter do not remove the DC negative connections to the inverter or any accessory until all positive battery connections have been disconnected This w...

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