MMS-E Series Inverters/Chargers Owner’s Manual
Disclaimer of Liability The use of this manual and the conditions or methods of installation, operation, use, and maintenance of the MMS-E Series inverter/charger are beyond the control of Magnum Energy, Inc. Therefore, this company assumes no responsibility and expressly disclaims any liability for loss, damage, or expense whether direct, indirect, consequential, or incidental that may arise out of or be in any way connected with such installation, operation, use, or maintenance.
Safety Symbols To reduce the risk of electrical shock, fire or other safety hazard, the following safety symbols have been placed throughout this manual to indicate dangerous and important safety instructions. WARNING: This symbol indicates that failure to take a specified action could result in physical harm to the user. CAUTION: This symbol indicates that failure to take a specified action could result in damage to the equipment.
• Overcurrent protection for the battery supply is not provided as an integral part of this inverter. Overcurrent protection of the battery cables must be provided as part of the installation. • Overcurrent protection for the AC output wiring is not provided as an integral part of this inverter. Overcurrent protection of the AC output wiring must be provided as part of the installation. IMPORTANT BATTERY SAFETY INSTRUCTIONS • Wear eye protection (safety glasses) when working with batteries.
Table of Contents 1.0 Introduction ..................................................................1 1.1 MMS-E Series Models ..................................................... 1 1.2 How an Inverter/Charger Works ...................................... 1 1.3 Inverter Applications for Mobile Installations ..................... 2 1.4 Advantages of Pure Sine Wave vs Modified Sine Wave ........ 2 1.5 Appliances and Run Time ............................................... 2 1.6 Standard Features and Benefits ..
Table of Contents (cont.) 3.0 Operation ....................................................................24 3.1 Operating Modes ..........................................................24 3.1.1 Inverter Mode......................................................24 3.1.2 Standby Mode .....................................................25 3.2 Protection Circuitry Operation ........................................29 3.3 Inverter Start-up ..........................................................30 3.
List of Figures Figure 1-1, MMS-912E Model Inverter/Charger .......................... 1 Figure 1-2, Top and Left Side Features ..................................... 4 Figure 1-3, Front and Back Side Features.................................. 5 Figure 1-4, Battery Temperature Sensor (BTS) .......................... 6 Figure 2-1, MMS-912E Model Basic Installation Diagram ............. 8 Figure 2-2, Approved Mounting Orientations.............................
1.0 Introduction 1.0 Introduction Congratulations on your purchase of an MMS-E Series inverter/charger from Magnum Energy, Inc. This product is designed especially for your mobile application. Powerful, yet simple to use, this product will provide you with years of trouble-free use. 1.1 MMS-E Series Model MMS912E - a 900 watt inverter/charger with 20 amp AC transfer capability and a 40 amp/12 VDC, 4-stage Power Factor Correction (PFC) charger.
1.0 Introduction 1.3 Inverter Applications for Mobile Installations Inverters can be used to provide power in mobile situations, such as in a caravan, truck, or boat. In these applications the inverter provides power to the AC loads using the energy stored in the batteries, and recharges the batteries when shore power or an onboard generator is available. 1.
1.0 Introduction 1.6 Standard Features and Benefits The MMS-E Series inverter/charger converts 12 volts of direct current (VDC) power from your battery to 230 volts alternating current (VAC) power. The multi-stage battery charger optimizes incoming AC power using power factor correction (PFC) technology to keep the inverter’s battery bank fully charged.
1.0 Introduction 1 2 5 3 8 10 6 4 11 9 7 Figure 1-2, Top and Left Side Features 4 Positive DC Terminal (red) - the inverter’s connection to the positive terminal on the battery bank. 5 Input Circuit Breaker - this circuit breaker protects the unit’s internal wiring and pass-thru relay. 6 Output Circuit Breaker - this circuit breaker provides another layer of overload protection. This is not a branch circuit-rated breaker. Separate AC output breakers may be required on the output.
1.0 Introduction 12 13 Front Side 14 15 16 Back Side 17 Figure 1-3, Front and Back Side Features 12 Warning and Information Label - provides pertinent information for safely using the inverter. 13 REMOTE Port Connection - a RJ11 connector that allows an optional remote control to be connected. 14 ACCESSORY PORT Connection - a RJ11 connector to allow the Battery Temperature Sensor (BTS) or MMS-E accessories (e.g., MM-DCLD, MM-ISA) to be connected.
1.0 Introduction 1.6.1 Battery Temperature Sensor A plug-in external Battery Temperature Sensor (BTS) is provided 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. ~2.5 cm (~1") ~5.
2.0 Installation 2.0 Installation 2.1 Pre-Installation Before installing the inverter, read the entire Installation section. The more thorough you plan in the beginning, the better your inverter needs will be met. WARNING: Installations should be performed by qualified personnel, such as a licensed or certified electrician. It is the installer’s responsibility to determine which safety codes apply and to ensure that all applicable installation requirements are followed.
2.0 Installation AC Main Panel DC Ground AC OUT Battery Bank 230 VAC Loads TV Tools DVD Figure 2-1, MMS912E Model Basic Installation Diagram 8 © 2011 Magnum Energy, Inc. Blue .
2.0 Installation 2.
2.0 Installation Safe - Keep any flammable/combustible material (e.g., paper, cloth, plastic, etc.,) that may be ignited by heat, sparks, or flames at a minimum distance of 61 cm (2’) away from the inverter. WARNING: The MMS-E Series inverter/charger is not an ignition-protection rated device and should not be installed in any location that requires ignition-protected equipment.
2.0 Installation Wall Mounted (right side up) Shelf Mounted (right side up) Shelf Mounted (upside down) Wall Mounted (upside down) Figure 2-2, Approved MMS912E Mounting Orientations Mounting holes x4 .64 cm diameter (¼") 42.1 cm (16.59") 11.84 cm (4.66") 25.4 cm (10") 17.1 cm (6.71") 19.1 cm (7.51") 21.4 cm (8.41") Figure 2-3, MMS912E Model Inverter/Charger Dimensions © 2011 Magnum Energy, Inc.
2.0 Installation 2.4 Wiring Guidelines • • • • • • • • • Before connecting any wires, determine all wire routes to and from the inverter throughout the caravan, vehicle, or boat. Conductors passing through 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 making cuts in structural surfaces or walls.
2.0 Installation Info: The DC wires must be color coded with colored tape or heat shrink tubing; BROWN for positive (+), BLUE for negative (-), and GREEN w/ YELLOW stripe for DC ground. The DC wires must have either soldered and crimped lugs, crimped copper compression lugs, or aluminum mechanical lugs. Soldered connections alone are not acceptable for this application. Table 2-1, Recommended DC Wire/Overcurrent Device Maximum Continuous Current1 133 amps DC Grounding Electrode Wire Size2 13.
2.0 Installation 2.5.2 DC Overcurrent Protection For safety and to comply with local electrical code regulations, you must install a DC overcurrent protection device in the positive DC cable line to protect your DC cables. This overcurrent device can be a fuse or circuit-breaker, but must be DC rated. It must be correctly sized according to the size of DC cables being used; which means it is required to open before the cable reaches its max. current carrying capability, thereby preventing a fire.
2.0 Installation 2.5.4 DC Cable Connections When connecting the DC cable to the battery or to the inverter’s DC terminals, the hardware should be installed in the correct order to prevent high resistance connections from heating up and possibly melting. Refer to Figures 2-4 and 2-5 to stack the hardware correctly. Tighten the terminal connections from 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.
2.0 Installation 2.6 Battery Bank Wiring WARNING: Lethal currents will be present if the positive and negative cables attached to the battery bank touch each other. During the installation and wiring process ensure the cable ends are insulated or covered to prevent touching/ shorting the cables.
2.0 Installation CAUTION: The inverter is NOT reverse polarity protected. If this happens, the inverter will be damaged and will not be covered under warranty. Before connecting the DC wires from the batteries to the inverter verify the correct battery voltage and polarity using a voltmeter. If the positive terminal of the battery is connected to the negative terminal of the inverter and vice versa, severe damage will result.
2.0 Installation Connect a short wire (same rating as the DC wires) to one end of the fuse block and the other end of the short wire to the positive terminal of the last battery string (see Figure C4). This is essential to ensure even charging and discharging across the entire battery bank.
2.0 Installation which wires are used for AC input and output. You can also refer to Table 2-3 to match the inverter’s AC wires to the appropriate AC wire connection. Table 2-3, Wire Color to AC Wire Connection AC IN AC OUT AC Ground Wire Color (label) Wire Connection Brown (HOT IN) Hot In Blue (NEUT IN) Neutral In Brown (HOT OUT) Hot Out Blue (NEUT OUT) Neutral Out Green w/Yellow stripe (GROUND) AC IN and AC OUT Ground The AC wires inside the AC compartment are 1.
2.0 Installation Most inverter’s that are hardwired use a service/distribution panel wired to the inverter’s input (main panel), and a dedicated panel between the inverter’s output wiring and the AC loads (sub-panel). These systems use the circuit breakers provided in the panels as the overcurrent protection and the AC disconnect. If fuses are used, then separate AC disconnect switches will be needed.
2.0 Installation Neutral In AC Ground In/Out Neutral Out Inverter = green Hardwire = green w/ yellow stripe Inverter = white w/black stripe Hardwire = blue Inverter = white Hardwire = blue Hot Out Hot In Inverter = red Hardwire = brown Inverter = black Hardwire = brown Strain reliefs AC IN AC OUT Figure 2-6, AC Wiring Connections (MMS912E) 2.8.5 AC Output Wiring CAUTION: The inverter’s AC output must never be connected to an AC power source.
2.0 Installation 4. Remove about 50 mm (2”) of the insulating jacket from the AC cable, and then separate the three wires and strip about 19 mm (3/4”) of insulation from each wire. 5. Using approved AC wire connectors, connect the outgoing Hot Out, Neutral Out, and AC Ground wires to the inverter’s AC wires colored red (HOT OUT), white with black stripe (NEU OUT), and green (AC GROUND), respectively.
2.0 Installation 5. 6. 7. 8. 9. 10. Check the output voltage of the inverter by connecting a true RMS multimeter to the outlets powered by the inverter. Verify the voltage is 230 VAC +/- 5 VAC. If not using a true RMS meter the output AC voltage could indicate from 170-250 VAC, depending on the battery voltage. Turn on or connect a load to the outlets and verify it comes on. Continue to keep the load connected and turned on. Press the remote ON/OFF switch to turn the inverter off.
3.0 Operation 3.0 Operation 3.1 Operating Modes The MMS-E Series inverter/charger has two normal operating routines: Inverter mode, which powers your loads using the batteries, and Standby mode, which transfers the incoming AC power (i.e., shore power or a generator) to power your loads and to recharge the batteries. This inverter also includes an extensive protection circuitry that shuts down the inverter under certain fault conditions. 3.1.
3.0 Operation 3.1.2 Standby Mode The MMS-E Series features an automatic transfer relay and an internal battery charger when operating in Standby mode. Standby mode begins whenever AC power (shore power or generator) is connected to the inverter’s AC input. Once the AC voltage and frequency of the incoming AC power is within the AC input limits, an automatic AC transfer relay is activated. This transfer relay passes the incoming AC power through the inverter to power the AC loads on the inverter’s output.
3.0 Operation The automatic 4-stage charging process includes: • • • • Bulk Charging: This is the initial stage of charging. While bulk charging, the charger supplies the battery with constant current. The charger remains in Bulk Charge until the absorption charge voltage is achieved (14.6 VDC)* – as determined by the battery type selection**. Absorb Charging: This is the second charging stage and begins after the bulk voltage has been reached.
3.
3.0 Operation Battery Temperature Sensor Operation - The plug-in Battery Temperature Sensor (BTS) is used to determine the battery temperature around the batteries. This information allows the multi-stage battery charger to automatically adjust the battery charge voltages for optimum charging performance and longer battery life. When the BTS is installed, if the temperature around the BTS is below 25° C (77° F) the absorb and float charge voltages increase.
3.0 Operation 3.2 Protection Circuitry Operation The inverter is protected against fault conditions, and in normal usage it will be rare to see any. However, if a condition occurs that is outside the inverter’s normal operating parameters, then it will shut down and attempt to protect itself, the battery bank, and your AC loads. If there is a condition that causes the inverter to shut down, it may be one of the conditions listed below.
3.0 Operation • Internal Fault - The inverter continually monitors several internal components and the processor communications. If a condition occurs that doesn’t allow proper internal operation, the inverter will shut down to protect itself and the connected loads. The inverter will need to be reset to start operating. Table 3-1, Inverter Battery Turn On/Off Levels Inverter Battery Turn On/Off Levels HBCO HBCI LBCI LBCO* (one minute delay) >15.8 VDC 15.5 VDC ≥12.5 VDC 10.0 VDC (9.0-12.
3.0 Operation Protection Mode There are five fault conditions that will cause the inverter to shut down: Low Battery, High Battery, Over-temperature, AC Overload, and Internal faults. If your inverter has shut down, monitor the status indicator and count the number of blinks that occur every four seconds to determine the particular reason for the shutdown. Refer to the Troubleshooting section to help diagnose/clear the fault condition.
3.0 Operation 03 Battery AmpHrs: This setting allows you to input the battery bank size in amp-hours. This provides information to the charger on how long to charge the batteries in the Absorb Charging stage. 04 Battery Type: This setting identifies the type of batteries being used in the system. This provides information to the charger to determine what voltage level to use to charge the batteries.
4.0 Maintenance and Troubleshooting 4.0 Maintenance and Troubleshooting 4.1 Recommended Inverter and Battery Care The MMS-E Series inverter/charger is designed to provide you with years of trouble-free service. Even though there are no user-serviceable parts, it is recommended that every 6 months you perform the following maintenance steps to ensure optimum performance and extend the life of your batteries. WARNING: Prior to performing these checks, switch both the AC and DC circuits OFF.
4.0 Maintenance and Troubleshooting 4.3 Resetting the Inverter Under some fault conditions (i.e., an internal fault), the inverter will need to be reset. To reset the inverter: 1. Press and hold the Power ON/OFF pushbutton for approximately 15 seconds, or until the status LED comes on and flashes rapidly (see Figure 4-1). 2. Release the Power ON/OFF pushbutton once the rapid flashing has begun. The status LED will go off. 3. Press the Power ON/OFF pushbutton again to turn the inverter on.
4.0 Maintenance and Troubleshooting 4.4 Troubleshooting The MMS-E Series inverter/charger is a fairly simple device to troubleshoot. There are only two active circuits (AC and DC), as well as a charging circuit. The following chart is designed to help you quickly pinpoint the most common inverter and charger faults.
5.0 Specifications 5.
Appendix A - Optional Equipment and Accessories Appendix A - Optional Equipment and Accessories The following Magnum Energy components are available for use with the MMS-E Series inverter/charger. Some of these items are required depending upon the intended use of the inverter. Smart Battery Combiner The Smart Battery Combiner (ME-SBCTM) is designed to monitor and charge a second battery using a portion of the current that is charging the main battery.
Appendix B - Wiring Color Codes Appendix B - Wiring Color Codes for Europe and U.S./Canada The following tables contrast AC and DC wiring color codes for Europe and the United States/Canada. In the U.S., the National Electrical Code (NEC) is the mandating authority; in Canada, it’s the Canadian Electrical Code (CEC). Most of Europe abides by the International Electrotechnical Commission’s (IEC) wiring color codes.
Appendix C - Battery Information Appendix C - Battery Information C1 Battery Bank Sizing The size of the battery bank determines how long the inverter can power the AC loads without recharging. The larger the battery bank, the longer the run time. Size your battery bank to the system’s AC load requirements and the length of time required to run the load from the batteries. In general, the battery bank should not be discharged more than 50%.
Appendix C - Battery Information C3.2 Parallel Wiring Wiring the batteries in parallel increases the total run time the batteries can operate the AC loads. A parallel connection combines overall battery capacity by the number of batteries in the string. Even though there are multiple batteries, the voltage remains the same. In the example below (Figure C3-2), four 12 VDC/100 AHr batteries are combined into a single 12 VDC/400 AHr battery bank.
Appendix C - Battery Information overcurrent protection String (12 VDC @ 100 AH) to 12 VDC inverter (total capacity = 100 AH) 12 VDC battery (100 AH) 12 volt battery bank (one string of one 12-volt battery) overcurrent protection Series String (6 VDC + 6 VDC) 6 VDC battery (200 AH) to 12 VDC inverter (total capacity = 200 AH) 6 VDC battery (200 AH) 12 volt battery bank (one string of two 6-volt batteries wired in series ) overcurrent protection Parallel String (100 AH + 100 AH) 12 VDC battery (10
Appendix D - Warranty/Service Information Appendix D - Warranty/Service Information D1 Limited Warranty Magnum Energy, Inc., warrants this MMS-E Series inverter/charger to be free from defects in material and workmanship that result in product failure during normal usage, according to the following terms and conditions: 1. The limited warranty for the product extends for 24 months beginning from the product’s original date of purchase. 2.
Appendix D - Warranty/Service Information D2 How to Receive Repair Service If your product requires warranty service or repair, contact either: 1. An International Authorized Service Center (ASC), as listed on the Magnum Energy website at: http://www.magnumenergy.com/Service/ServiceCenters-Intl.htm, or 2. Magnum Energy, Inc. at: Telephone: +011-425-353-8833 Fax: +011-425-353-8390 Email: warranty@magnumenergy.
Magnum Energy, Inc. 2211 West Casino Rd. Everett, WA 98204 Phone: +011-425-353-8833 Fax: +011-425-353-8390 Web: www.magnumenergy.com PN: 64-0052 Rev. A © 2011 Magnum Energy, Inc.
