Magnum-energy MMS Series User Manual Page 1

Owner’s ManualMMS SeriesInverters/Chargers

© 2014 Magnum Energy, Inc.Figure 3, Top and Left Side Features1. Inverter Status Indicator – a green LED that illuminates to provide information on th

© 2014 Magnum Energy, Inc.Introduction5Figure 4, Front and Back Side Features13. Warning and Information Label – provides pertinent information for s

© 2014 Magnum Energy, Inc.FRONT VIEWSIDE VIEW~2" (5.1 cm)~1"~½”0.375" diameterCable~¾” (2.5 cm) (.95 cm) (1.9 cm) (1.3 cm)Figure 5, Bat

© 2014 Magnum Energy, Inc.7Installation2.0 Installation2.1 Pre-InstallationBefore installing the inverter, read the entire Installation section. The m

© 2014 Magnum Energy, Inc.Figure 6, MMS1012 Model Basic Installation DiagramACMain PanelDC disconnect and overcurrent deviceBattery BankAC INAC LoadsA

© 2014 Magnum Energy, Inc.Installation9Figure 7, MMS1012-G Model Basic Installation DiagramDC disconnect and overcurrent deviceBattery BankAC INAC Loa

© 2014 Magnum Energy, Inc.Installation102.1.2 Locating and Mounting the InverterWARNINGS:• Do not mount the inverter near any fl ammable orcombustible

© 2014 Magnum Energy, Inc.Safe – Keep any fl ammable/combustible material (e.g., paper, cloth, plastic, etc.) that may be ignited by heat, sparks, or fl

© 2014 Magnum Energy, Inc.12InstallationFigure 9, MMS1012 Model Inverter/Charger DimensionsMounting holes x4 [¼” (0.25") diameter]10.0"~ 16

© 2014 Magnum Energy, Inc.2.1.3 Wiring Guidelines• Before connecting any wires, determine all wire routes to and from the inverter throughout the RV,

© 2014 Magnum Energy, Inc.Disclaimer of LiabilityThe use of this manual and the conditions or methods of installation, operation, use, and maintenance

© 2014 Magnum Energy, Inc.14Installation• DC wires and cables should be tied together with wire ties or electrical tape approximately every 6 inches

© 2014 Magnum Energy, Inc.Installation15Table 1, Recommended DC Wire/Overcurrent DeviceInfo: The term “in free air” is defi ned by the NEC as not encas

© 2014 Magnum Energy, Inc.Electrical systems in mobile installations typically do not require using a DC disconnect, although an overcurrent protectio

© 2014 Magnum Energy, Inc.Installation17Figure 11, DC Cable to Battery TerminalsCAUTION: The inverter is NOT reverse polarity protected (negative and

© 2014 Magnum Energy, Inc.2.3 Battery Bank WiringWARNING: Lethal currents will be present if the positive and negative cables attached to the battery

© 2014 Magnum Energy, Inc.Installation19CAUTION: The inverter is NOT reverse polarity protected. If this happens, the inverter will be damaged and wil

© 2014 Magnum Energy, Inc.Ensure the DC wire connections (to batteries, inverter, and fuse lugs/DC circuit breaker) are fl ush on the surface of the DC

© 2014 Magnum Energy, Inc.21InstallationThe AC wires inside the AC compartment are #16 AWG (1.3 mm²) with a temperature rating of 105°C (221°F). All A

© 2014 Magnum Energy, Inc.2.4.4 AC Input WiringYour inverter has an AC transfer feature that passes the AC input power to the inverter’s output. Conn

© 2014 Magnum Energy, Inc.23InstallationAC INAC OUTStrain reliefsACGroundIn/Out (green)Neutral In (white)HotOut (red)Neutral Out (white w/black stripe

© 2014 Magnum Energy, Inc.iiConventions Used in this Manual (terminology)Shorepower or External AC power – refers to alternating current (AC) provided

© 2014 Magnum Energy, Inc.Installation242.4.5 AC Output WiringCAUTION: The inverter’s AC output must never be con-nected to an AC power source. This

© 2014 Magnum Energy, Inc.Installation252.5 Functional TestAfter all electrical connections to the inverter, batteries, AC source and loads (using a s

© 2014 Magnum Energy, Inc.263. Prior to turning on the inverter, make sure all connected loads (e.g., appliances) are switched OFF or disconnected fr

© 2014 Magnum Energy, Inc.3.0 Operation3.1 Operating ModesThe MMS Series inverter/charger has two normal operating rou-tines. Inverter mode, which pow

© 2014 Magnum Energy, Inc.Operation283.1.2 Standby ModeThe MMS Series features an automatic transfer relay and an internal battery charger when operat

© 2014 Magnum Energy, Inc.The automatic 4-stage charging process includes:• Bulk Charging: This is the initial stage of charging. While bulk charging,

© 2014 Magnum Energy, Inc.Constant CurrentReducedCurrentReduced VoltageAbsorb volts‘Adj Charge Rate’ SettingIncreased VoltageConstant VoltageMonitored

© 2014 Magnum Energy, Inc.Operation313.2 Battery Temperature Sensor OperationThe plug-in Battery Temperature Sensor (BTS) is used to determine the ba

© 2014 Magnum Energy, Inc.3.3 Protection Circuitry OperationThe inverter is protected against fault conditions, and in normal usage it will be rare t

© 2014 Magnum Energy, Inc.• Internal Fault – The inverter continually monitors several inter-nal components and the processor communications. If a con

© 2014 Magnum Energy, Inc.• No AC or DC disconnects are provided as an integral part of this inverter. Both AC and DC disconnects must be provided as

© 2014 Magnum Energy, Inc.34OperationProtection ModeThere are fi ve fault conditions that will cause the inverter to shut down: Low Battery, High Batte

© 2014 Magnum Energy, Inc.Table 6, Inverter/Charger Default Settings04 Battery Type: This setting identifi es the type of batteries being used in the s

© 2014 Magnum Energy, Inc.36Maintenance and Troubleshooting4.0 Maintenance and Troubleshooting4.1 Recommended Inverter and Battery CareThe MMS Serie

© 2014 Magnum Energy, Inc.Maintenance and Troubleshooting374.3 Resetting the InverterUnder some fault conditions (i.e., an internal fault), the inver

© 2014 Magnum Energy, Inc.38Maintenance and Troubleshooting4.4 TroubleshootingThe MMS Series inverter/charger is a fairly simple device to trouble-sho

© 2014 Magnum Energy, Inc. Specifi cations39Table 8, MMS Series Specifi cations5.0 Specifi cationsMODEL MMS1012 MMS1012-GInverter Specifi cationsInput bat

© 2014 Magnum Energy, Inc.Appendix A – Optional Equipment and Accessories40A-1 Optional Equipment and AccessoriesThe following Magnum Energy componen

© 2014 Magnum Energy, Inc.B-1 Battery InformationBattery Bank SizingThe size of the battery bank determines how long the inverter can power the AC loa

© 2014 Magnum Energy, Inc.Appendix B – Battery Information42Figure 21, Series-Parallel Battery Wiringovercurrent protectionString 2String 112 volt bat

© 2014 Magnum Energy, Inc.43 Appendix B – Battery Information12 VDCbattery(100 AH)12 VDCbattery(100 AH)12-volt battery bank (one string of one 12-volt

© 2014 Magnum Energy, Inc.ivTable of Contents1.0 Introduction ...11.1 MMS Series Models

© 2014 Magnum Energy, Inc.C-1 Warranty/Service InformationC-1.1 Limited WarrantyMagnum Energy, Inc., warrants this MMS Series inverter/charger to be f

© 2014 Magnum Energy, Inc.C-1.2 How to Receive Repair ServiceIf your product requires warranty service or repair, contact either:• An authorized ser

Magnum Energy, Inc.2211 West Casino Rd.Everett, WA 98204Phone: 425-353-8833Fax: 425-353-8390 Web: www.magnumenergy.comPN: 64-0036 Rev B

© 2014 Magnum Energy, Inc.vList of TablesTable 1, Recommended DC Wire/Overcurrent Device ...15Table 2, DC Wire Size For Increased Distan

© 2014 Magnum Energy, Inc.11.0 IntroductionCongratulations on your purchase of an MMS Series inverter/charger from Magnum Energy, Inc. This product is

© 2014 Magnum Energy, Inc.2Introduction1.2 How an Inverter/Charger WorksAn inverter takes direct current (DC) from your batteries and turns it into a

© 2014 Magnum Energy, Inc.Introduction 3Depending on your inverter capacity, larger electrical appliances such as coffee pots and hair dryers can be u