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Maintenance and Troubleshooting

Symptom

Possible Cause

Recommended Solution

Internal Fault

(the status

indicator blinks

x5/4 secs)

This fault occurs when

an internal fault is

detected.

To clear this fault, an

inverter reset is required.

Remove DC power to the

inverter or press and hold

down the power switch on

the inverter for 15 secs (till

green Status LED comes

on). If this fault does not

clear, the unit will need to

be serviced.

Inverter’s

status light is

off.

Inverter is switched

OFF or there is no

DC voltage (battery)

connected to inverter.

Switch the inverter ON.

Connect a battery with

correct voltage to the

inverter.

AC input won’t

connect (AC

IN on remote

blinks)

The incoming AC

voltage will not be

accepted if it is below

the VAC Dropout setting

(80VAC = default

setting).

Check incoming AC voltage

to input of the inverter,

ensure it is present and

above the VAC dropout

level.

Appliances

turn off and

on; or there is

low AC output

power.

Loose AC output

connections.

Tighten AC output

connections.

Loose / corroded

battery cables.

Clean and tighten all

cables.

Low batteries.

Recharge or replace

batteries.

While charging,

the DC charge

voltage is

higher or lower

than expected.

If the Battery

Temperature Sensor is

installed, it will increase

or decrease the DC

voltage level depending

on temp around the

battery sensor.

This is normal.

Table 4-1, Troubleshooting Guide (Cont.)

Summary of Contents for MMS Series

Page 1: ...Owner s Manual MMS Series Inverters Chargers ...

Page 2: ...rter can reasonably be expected to cause the failure of that life support device or system or to affect the safety or effectiveness of that device or system If the MMS Series inverter fails it is reasonable to assume that the health of the user or other persons may be endangered Copyright Notice Copyright 2017 by Sensata Technologies All rights reserved Permission to copy distribute and or modify ...

Page 3: ...fety information contained in this manual before installing or using this product All electrical work must be performed in accordance with local state and federal electrical codes This product is designed for indoor compartment installation DO NOT expose to rain snow moisture or liquids of any type Use insulated tools to reduce the chance of electrical shock or accidental short circuits Remove all...

Page 4: ...iques when working with batteries Never use old or untested batteries Check each battery s label for age type and date code to ensure all batteries are identical Batteries are sensitive to changes in temperature Always install batteries in a stable environment Install batteries in a well ventilated area Batteries can produce explosive gasses For compartment or enclosure installations always vent b...

Page 5: ...ues locaux provinciaux et fédéraux Ce produit est conçu pour l installation à l intérieur ou dans le compartiment NE PAS exposer à la pluie à la neige à l humidité ou à des liquides de tout type Utilisez des outils isolés pour réduire les risques de choc électrique ou de court circuit accidentel Enlevez tous les bijoux tels que bagues montres bracelets etc lors de l installation ou de la maintenan...

Page 6: ... l entretien sur les batteries Ne jamais travailler seul Toujours avoir quelqu un près de vous lorsque vous travaillez autour des piles Utilisez des techniques de levage appropriées lorsque vous travaillez avec des piles N utilisez jamais de piles usées ou non testées Vérifiez chaque étiquette des piles pour l âge le type et le code de date pour s assurer que toutes les piles sont identiques Les b...

Page 7: ...xposition accidentelle à l acide de la batterie laver à fond avec de l eau et du savon En cas d exposition aux yeux les inonder pendant au moins 15 minutes avec de l eau courante et consulter un médecin Recyclez les vieilles batteries CONSERVER CES INSTRUCTIONS ...

Page 8: ... Wiring 19 2 4 AC Wiring MMS1012 model only 21 2 4 1 Pre AC Wiring Requirements 21 2 4 2 AC Wire Size and Overcurrent Protection 21 2 4 3 Ground Fault Circuit Interruption GFCI Breakers 22 2 4 4 AC Wiring Connections 23 2 4 5 AC Input Wiring 23 2 4 6 AC Output Wiring 24 2 5 Grounding Inverters 25 2 5 1 Neutral to Safety Ground Bonding 25 2 5 2 Disabling the Neutral to Ground Connection 27 2 6 Inve...

Page 9: ... 12 Figure 2 5 MMS1012 G Model Dimensions 13 Figure 2 6 DC Cable to Battery Terminals 17 Figure 2 7 DC Cable to Inverter s DC Terminals 18 Figure 2 8 Battery String Connections 20 Figure 2 9 AC Wiring Connections MMS1012 model 24 Figure 2 10 Neutral to Ground Connection Inverter Mode 26 Figure 2 11 Neutral to Ground Connection Standby Mode 26 Figure 2 12 Disconnecting Neutral to Ground Connection ...

Page 10: ...output are provided with pigtail wires to allow hardwiring to a main AC distribution panel and to an inverter sub panel Features isolated input output neutrals for mobile applications Includes a 15 foot battery temperature sensor Figure 1 1 MMS1012 Model Inverter Charger MMS1012 G a 1000 watt inverter charger with a 50 amp 4 stage PFC charger The AC input is provided by a standard 3 foot plug in p...

Page 11: ...e sine wave inverters The output of a pure sine wave inverter is equal to or in many cases better than the utility power used in your home Virtually any electronic device will operate from a pure sine wave inverter Motors run cooler microwaves usually cook faster and clocks keep better time just to name a few examples Without compromising quality or performance the MagnaSine provides you with all ...

Page 12: ...s die cast aluminum baseplate it ensures maximum durability and cooler more efficient operation The inverter charger provides the following 1000 watts continuous at 25 C 77 F Numerous protection features to provide a safe and peace of mind operation AC transfer switch circuitry allowing incoming AC power to continue to pass thru to power loads even if the inverter is off Dead battery charging for ...

Page 13: ...layer of overload protection Not a branch circuit rated breaker Separate AC output breakers may be required on the output 7 Mounting Flanges x4 secure the inverter to shelf wall 8 AC Wiring Compartment provides access for all AC input and output connections on the inverter 9 AC Output Connection AC knockout for hardwiring AC output 10 AC Input Connection a strain relief clamp for hardwiring AC inp...

Page 14: ... MM DCLD MM ISA to be connected 16 Intake Vent ventilation openings to pull in air to keep the inverter cool for peak performance 17 Exhaust Vent ventilation openings that allow heated air to be removed by the internal cooling fan 18 Model Serial Number Label includes model serial number and provides specifications and information on the inverter and charger See the MMS Series Specifications Table...

Page 15: ...re Sensor BTS is provided for units with the battery charger feature When installed the BTS automatically adjusts the battery charger s BULK ABSORB and FLOAT voltage set points based on temperature for better charging performance and longer battery life If the temperature sensor is NOT installed and the batteries are subjected to large temperature changes battery life may be shortened See Section ...

Page 16: ...ncluded MMS Series inverter charger Red and black DC terminal covers AC access cover with two screws Two 5 16 18 hex head kep nuts installed on the DC terminals Battery Temperature Sensor BTS MMS Series Owner s Manual Warning Label If items appear to be missing or damaged contact your authorized Magnum Energy dealer or Sensata Technologies If at all possible keep your shipping box It will help pro...

Page 17: ...F ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF AC Transfer Switch Generator Power 120VAC Output Shorepower 120VAC Output ME AGS N Auto Gen Start Controller 120 VAC ON OFF Sub Panel ME BMK Battery Monitor with shunt Magnum Accessory ME SBC Smart Battery Combiner Magnum Accessory 12V Battery Bank ME RC50 Remote Controls BULK ABSORB FLOAT INVERT AC IN FAULT ON OFF MM RC SELECT TECH ...

Page 18: ...r Charger DC Shunt BTS ME BMK Battery Monitor with shunt Magnum Accessory ME SBC Smart Battery Combiner Magnum Accessory 12V Battery Bank ME RC50 Remote Controls BULK ABSORB FLOAT INVERT AC IN FAULT ON OFF MM RC SELECT TECH AG S METER SETU P SH OR E INVE RTE R CH ARG ER INV CH G FAULT PWR ON OFF ON OFF AC IN 120 VAC AC OUT DVR TV Tools Installation ...

Page 19: ...nditions do not cover or block the inverter s ventilation openings or install this inverter in an area with limited airflow Allow as much clearance around the inverter s intake and exhaust ventilation openings as possible see Figure 1 4 Items 16 17 At the minimum allow an airspace clearance of 3 7 5 cm on all sides to provide adequate ventilation If installed in an enclosure a fresh air intake ope...

Page 20: ...ns of the two MMS Series models Mounting Orientation To meet regulatory requirements the MMS Series inverter charger can only be mounted on a horizontal surface shelf or table or a vertical surface wall or bulkhead either right side up or upside down as shown in Figure 2 3 The inverter must be mounted on a non combustible surface and this surface and the mounting hardware must be capable of suppor...

Page 21: ...gh walls or other structural members must be protected to minimize insulation damage such as chafing which can be caused by vibration or constant rubbing Always check for existing electrical plumbing or other areas of potential damage prior to cutting into structural surfaces or walls Make sure all wires have a smooth bend radius and do not become kinked Both AC and DC overcurrent protection must ...

Page 22: ...urn path directly to the battery DC wires and cables should be tied together with wire ties or electrical tape approximately every 6 inches 15 2 cm This helps improve the surge capability and reduces the effects of inductance which improves the inverter waveform and reduces wear on the inverter s filter capacitors Use only copper wires with a minimum temperature rating of 75 C 167 F To ensure maxi...

Page 23: ...ive BLACK for negative and GREEN for DC ground The DC wires must have soldered and crimped lugs crimped copper compression lugs or aluminum mechanical lugs Soldered connections alone are not acceptable for this application If the inverter is expected to operate at a distance greater than 5 feet 152 4 cm from the battery bank the DC wire size will need to be increased to overcome the increase in re...

Page 24: ...g system The idea is to connect the metallic chassis of the various enclosures together to have them at the same voltage potential which reduces the possibility for electric shock For the majority of installations the inverter chassis and the negative battery conductor are connected to the system s ground bond via a safety grounding conductor bare wire or green insulated wire at only one point in ...

Page 25: ...a multiple cable fill factor 0 8 de rating if needed Note4 The next larger standard size overcurrent device may be used if the de rated cable ampacity falls between the standard overcurrent devices found in the NEC Inverter Model MMS1012 MMS1012 G Maximum Continuous Current1 133 amps 133 amps DC Grounding Electrode Wire Size2 6 AWG 13 3 mm 6 AWG 13 3 mm Minimum DC Wire Size3 75 C rating in free ai...

Page 26: ...dware per Figures 2 6 2 7 Tighten the terminal connections from 10 to 12 ft lbs 13 6 to 16 3 N m CAUTION Do not put anything between the DC cable ring lug and the battery terminal post or the inverter s DC terminal If antioxidant grease or spray is used apply it after all the connections have been made and are properly tightened CAUTION Overtightening or misthreading nuts on the DC terminals will ...

Page 27: ...n installed and 3 the 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 12 VDC the batteries must be wired in series parallel or series parallel see Appendix B Battery Information for guidance on wiring batteries together The interconnecting DC wires ...

Page 28: ...e damage will result If necessary color code the cables with colored tape or heat shrink tubing RED for positive and BLACK for negative to avoid polarity confusion Info The DC overcurrent device i e fuse or circuit breaker must be placed in the positive RED DC cable line between the inverter s positive DC terminal and the battery s positive terminal RED as close to the battery as possible DC Groun...

Page 29: ...s essential to ensure even charging and discharging across the entire battery bank Ensure the DC wire connections to batteries inverter and fuse lugs DC circuit breaker are flush on the surface of the DC terminals and the hardware lock washer and nut used to hold these connections are stacked correctly see Figures 2 6 and 2 7 Verify DC connections torqued from 10 to 12 ft lbs 13 6 to 16 3 N m Once...

Page 30: ...al RV or marine wiring DO NOT connect the inverter s output to an AC power source This could cause severe damage to the inverter and is not covered under warranty The wire sizes recommended in this manual are based on the ampacities given in Table 310 17 in free air of the National Electrical Code ANSI NFPA 70 for 75 C 167 F copper wire based on an ambient temperature of 30 C 86 F Note The term in...

Page 31: ... Circuit Interruption GFCI Breakers In compliance with UL standards Sensata has tested some GFCIs to ensure they function properly when connected to the inverter s AC output See WARNING below WARNING Risk of electric shock Use only the following GFCIs receptacles or circuit breaker s Leviton 8899 A N7899 and the GFNT1 and GNNT2 Other types may fail to operate properly when connected to this invert...

Page 32: ...he inverter s Neutral In and Neutral Out wires are electrically isolated from each other while inverting However these same input and output neutrals are connected together while charging 2 4 5 AC Input Wiring Your inverter has an AC transfer feature that passes the AC input power to the inverter s output Connection to the AC input is made by hardwiring from a distribution panel as described below...

Page 33: ...nd or the supplemental breakers on the inverter to provide adequate protection for the AC output wiring For more information on these requirements refer to the RVIA www rvia org To hardwire the AC output of the MMS Series inverter 1 Remove the 1 2 knockout on the AC Output Connection Figure 1 3 Item 9 use a utility knife to cut thru the round slot 2 Discard this knockout and install a 1 2 strain r...

Page 34: ...rip GFCIs cause an electric shock hazard and may be the reason for other annoying side effects In applications where you are using an inverter as one of your AC sources along with another AC source i e utility power or generator there is the potential of having multiple connections bonds between neutral and ground Therefore you must ensure that the inverter does not also connect the neutral to gro...

Page 35: ... in Figure 2 10 However when an external AC source i e shorepower or a generator is connected another neutral to ground connection is introduced in the system When the MMS1012 is connected to this external AC source and goes into Standby mode the internal relay automatically opens the neutral to ground connection as shown in Figure 2 11 This design keeps two neutral to ground connections from occu...

Page 36: ...ll AC and DC sources before working in the AC wiring compartment 1 Locate and remove the AC access cover plate Figure 1 3 Item 8 on the side of the MMS1012 inverter 2 Inside the AC wiring compartment locate the green wire with the insulated connector Figure 2 12 This insulated connector connects the neutral and ground inside the inverter while inverting 3 Pull the two ends of the insulated connect...

Page 37: ...erminals 2 Apply battery power to the inverter by switching the DC disconnect ON or close the DC circuit breaker The inverter will remain OFF but the green status indicator on the front of the inverter will quickly blink once to indicate that DC power has been connected and is ready to be turned on 3 Prior to turning on the inverter make sure all connected loads e g appliances are switched OFF or ...

Page 38: ...ing on the battery voltage 6 Press the remote ON OFF switch to turn the inverter off If the remote is not used press and release the inverter s ON OFF power switch to turn the inverter off The inverter s status indicator and the connected load should go off 7 Apply AC power to the inverter s AC input After the AC input power is qualified approximately 15 seconds the incoming AC power will transfer...

Page 39: ...er is OFF When the inverter is turned ON it operates either by Searching or Inverting depending on the connected AC loads Searching When the inverter is first turned ON the automatic Search feature is enabled This feature is provided to conserve battery power when AC power is not required In this mode the inverter pulses the AC output looking for an AC load i e electrical appliance Whenever an AC ...

Page 40: ... an AC power source is connected to an inverter that has 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 voltage is monitored to determine the charging stage If the DC voltage is low 12 9 VDC the charger begins bulk charging If the DC voltage is high...

Page 41: ...ntained at optimum capacity In this stage the charge voltage is reduced to the float charge voltage 13 4 VDC as determined by the Battery Type selection which can maintain the batteries indefinitely Full Charge Battery Saver mode The fourth stage occurs after four hours of float charging The Full Charge stage maintains the batteries without overcharging preventing excessive loss of water in floode...

Page 42: ... this transfer time is usually fast enough to hold them up However the VAC dropout setting has an effect on the ability of the loads to transfer without resetting The lower this setting the longer the effective transfer will be and therefore the higher the probability for the output loads to reset This occurs because the incoming AC voltage is allowed to fall to a level that is so low that when th...

Page 43: ...absorb charge voltage for a flooded battery at 77 F 25 C is 14 6 VDC If the battery temperature is 95 F 35 C the absorb charge voltage would decrease to 14 3 VDC 14 6 VDC 0 3 change If the temperature sensor is NOT installed the charge voltages will 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 ...

Page 44: ...articular inverter model High Battery In the event the battery voltage approaches the High Battery Cut Out HBCO level the inverter will automatically shut down to prevent the inverter from supplying unregulated AC output voltage The inverter s status LED turns off when a high battery fault condition occurs The inverter will automatically restart when the battery falls to the High Battery Cut In HB...

Page 45: ... on or off the charger feature If AC power utility or generator is connected and qualified on the AC input this AC power will also be available on the AC output and is not controlled by the Power ON OFF switch Status LED Indicator The status indicator is a green LED Light Emitting Diode that provides information on the operational mode of the inverter Watch this indicator for at least 10 seconds t...

Page 46: ...erter s output 3 5 Factory Default Settings The MMS Series inverter charger uses default settings that are adequate for most installations see Table 3 2 However you can adjust these parameters using Sensata s optional ME RC50 remote The settings once programmed are saved in non volatile memory and are preserved until changed even if DC power to the inverter is lost ME RC50 must always be connected...

Page 47: ...cause of a charge rate that is too high 06 VAC Dropout Sets the minimum AC voltage that must be present on the AC input before the unit transfers from Standby mode to Inverter mode This protects the AC loads from utility outages and brown outs The ME RC50 remote also provides the following features allows you to enable an equalize charge for certain battery types displays the inverter charger s op...

Page 48: ...s cooling vents clean as necessary 4 2 RV Marine Off Season Storage When placing your coach or boat into seasonal storage it is recommended that you perform the following to ensure the system is properly shut down or properly configured for seasonal storage This is especially important for maintaining the batteries Perform the recommended maintenance steps noted above Fully charge the batteries Co...

Page 49: ...y voltage drops below 15 5 VDC This condition usually occurs only when an additional charging source alternator solar panels or other external charging sources is used to charge the battery bank Reduce or turn off any other charger to the inverter batteries to allow the voltage level to drop Over temperature Condition the status indicator blinks x3 4 secs The internal temperature of the inverter h...

Page 50: ...Connect a battery with correct voltage to the inverter AC input won t connect AC IN on remote blinks The incoming AC voltage will not be accepted if it is below the VAC Dropout setting 80VAC default setting Check incoming AC voltage to input of the inverter ensure it is present and above the VAC dropout level Appliances turn off and on or there is low AC output power Loose AC output connections Ti...

Page 51: ...iency 84 Power factor 0 95 Input current at rated output 7 AAC Battery temp compensation Yes 15 ft Battery Temp Sensor standard General Features and Capabilities Protection circuitry Low High Battery Over temp Overload Corrosion protection PCB s conformal coated powder coated chassis AC Output Hardwire GFCI outlet AC Input Hardwire 3 ft cord Output circuit breaker 15A Input circuit breaker 20 AAC ...

Page 52: ...gh temperature It works with 12 24 and 48 volt battery banks and includes a 4 position DIP Dual In line Package switch which provides the ability to change the relay timing configurations to allow compatibility with a wider range of generators Battery Monitor Kit The ME BMK Battery Monitor Kit is a single battery bank amp hour meter that monitors the condition of the battery and provides informati...

Page 53: ...st 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 is usually printed on a label located on the battery Battery Configuration The battery bank must be wired to match the inverter s DC input voltage specifications In addition the batteries can be wired ...

Page 54: ...00 AHr batteries are combined into two strings resulting in a 12 VDC 400 AHr battery bank Figure B 2 Parallel Battery Wiring 12 volt battery bank total capacity 400 AHrs overcurrent protection 12 volts 100 AHrs 12 volts 100 AHrs 12 volts 100 AHrs 12 volts 100 AHrs To 12 VDC Inverter Parallel Wiring Wiring the batteries in parallel increases the total run time the batteries can operate the AC loads...

Page 55: ... 100 AH overcurrent protection overcurrent protection to 12 VDC inverter total capacity 400 AH Series String 6 VDC 6 VDC 6 VDC battery 200 AH 6 VDC battery 200 AH 12 volt battery bank two strings of two 6 volt batteries wired in series and connected in parallel Series String 6 VDC 6 VDC 6 VDC battery 200 AH 6 VDC battery 200 AH overcurrent protection Parallel String 200 AH 200 AH 12 volt battery b...

Page 56: ...inal purchaser returns the product for repair determined by the price paid by the original purchaser Sensata shall not be liable for any other losses or damages 4 Upon request from Sensata the original purchaser must prove the product s original date of purchase by a dated bill of sale itemized receipt 5 The original purchaser shall return the product prepaid to Sensata After the completion of ser...

Page 57: ...to Sensata for repair you must 1 Return the unit in the original or equivalent shipping container 2 Receive a Return Materials Authorization RMA number from the factory prior to the return of the product to Sensata for repair 3 Place RMA numbers clearly on the shipping container or on the packing slip When sending your product for service please ensure it is properly packaged Damage due to inadequ...

Page 58: ...Magnum Energy Products Manufactured by Sensata Technologies Web www SensataPower com MMS Series Owner s Manual PN 64 0036 Rev C ...

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