ENGLISH MultiPlus-II 12V/24V/48V 3kVA 120V Rev 00 10/2021
MultiPlus-II 12V/24V/48V 3kVA 120V Table of Contents 1. IMPORTANT SAFETY INSTRUCTIONS - Save these instructions! .......................................................... 1 2. Description ............................................................................................................................ 2 2.1. Boats, vehicles and other stand-alone applications ..................................................................... 2 2.2. On-grid and off-grid systems combined with PV ................
MultiPlus-II 12V/24V/48V 3kVA 120V C. Parallel connection ................................................................................................................ 30 D. Three phase connection .......................................................................................................... 31 E. Charge algorithm .................................................................................................................. 32 F. Temperature compensation ...................................
MultiPlus-II 12V/24V/48V 3kVA 120V 1. IMPORTANT SAFETY INSTRUCTIONS - Save these instructions! In general Please read the documentation supplied with this product first, so that you are familiar with the safety signs en directions before using the product. This product is designed and tested in accordance with international standards. The equipment should be used for the designated application only. Warning – These servicing instructions are for use by qualified personnel only.
MultiPlus-II 12V/24V/48V 3kVA 120V 2. Description 2.1. Boats, vehicles and other stand-alone applications The basis of the MultiPlus-II is an extremely powerful sine inverter, battery charger and transfer switch in a compact casing. Important features: Automatic and uninterruptible switching In the event of a supply failure or when the generating set is switched off, the MultiPlus-II will switch over to inverter operation and take over the supply of the connected devices.
MultiPlus-II 12V/24V/48V 3kVA 120V - Stop at a preset battery voltage, or - stop (with a preset delay) after the bulk charge phase has been completed, and/or - stop (with a preset delay) at a preset load level.
MultiPlus-II 12V/24V/48V 3kVA 120V 2.4. ESS – Energy Storage Systems: feeding energy back into the grid (not applicable to the MultiPlus-II 12/3000/120-32) When the MultiPlus-II is used in a configuration in which it will feed back energy into the grid it is required to enable grid code compliance by selecting the appropriate grid code country setting with the VEConfigure tool. Once set, a password will be required to disable grid code compliance or change grid code related parameters.
MultiPlus-II 12V/24V/48V 3kVA 120V 3. Operation 3.1. On/Off/Charger Only Switch When switched to ‘on’, the product is fully functional. The inverter will come into operation and the LED ‘inverter on’ will light up. An AC voltage connected to the ‘AC in’ terminal will be switched through to the ‘AC out’ terminal, if within specifications. The inverter will switch off, the ‘mains on’ LED will light up and the charger commences charging.
MultiPlus-II 12V/24V/48V 3kVA 120V b. Switch rapidly back from ‘charger only’ to ‘on’ and leave the switch in this position for ½ to 2 seconds. c. Switch once more rapidly from ‘on’ to ‘charger only’ and leave the switch in this position. 4. On the MultiPlus-II (and, if connected, on the MultiControl panel) the three LEDs ‘Bulk’, ‘Absorption’ and ‘Float’ will now flash 5 times. 5. Subsequently, the LEDs ‘Bulk’, ‘Absorption’ and ‘Float’ will each light during 2 seconds. a.
MultiPlus-II 12V/24V/48V 3kVA 120V Low battery alarm The inverter has switched off due to low battery voltage. The "low battery" LED is blinking. Temperature pre-alarm The internal temperature is reaching a critical level. The "temperature" LED is blinking. Temperature alarm The inverter has switched off due it's internal temperature being too high. The "temperature" LED is on.
MultiPlus-II 12V/24V/48V 3kVA 120V Bulk charging The AC input voltage is switched through and the charger operates in bulk mode. The "bulk" LED is on. BatterySafe The mains voltage is switched through and the charger is on. However, the set absorption voltage has not yet been reached. The "bulk" and "absorption" LEDs are both on. Absorption charging The mains voltage is switched through and the charger operates in absorption mode. The "absorption" LED is on.
MultiPlus-II 12V/24V/48V 3kVA 120V PowerAssist The AC input is switched through, but the load requires more current than the preset maximum input current. The inverter is switched on to supply the required additional current. The "mains on" LED is on and the "inverter" LED is blinking. For more error codes see section 7.3 For the latest and most up to date information about the blink codes, please refer to the Victron Toolkit app.
MultiPlus-II 12V/24V/48V 3kVA 120V 4. Installation This product may only be installed by a qualified electrical engineer. 4.1. Location The product must be installed in a dry and well-ventilated area, as close as possible to the batteries. There should be a clear space of at least 10 cm around the appliance for cooling. Excessively high ambient temperature will result in the following: • Reduced service life. • Reduced charging current. • Reduced peak capacity, or shutdown of the inverter.
MultiPlus-II 12V/24V/48V 3kVA 120V WARNING – RISK OF EXPLOSIVE GASES) WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. FOR THIS REASON, IT IS OF UTMOST IMPORTANCE THAT EACH TIME BEFORE SERVICING THE UNIT IN THE VICINITY OF THEBATTERY, YOU READ THIS MANUAL AND FOLLOW THE INSTRUCTIONS EXACTLY.
MultiPlus-II 12V/24V/48V 3kVA 120V Recommended battery capacity (Ah) 400–1200 200-700 100-400 400 A 300 A 125 A 0 – 5 m*** 2x AWG 1/0 AWG 1/0 AWG 2 5 – 10 m*** 2x AWG 2/0 2x AWG 1/0 AWG 2/0 Recommended DC fuse Recommended cross section (mm2 ) per + and - connection terminal *, ** * Follow local installation rules. ** Do not locate battery cables in a closed conduit *** “2x” means two positive and two negative cables.
MultiPlus-II 12V/24V/48V 3kVA 120V This unit or system is provided with fixed trip limits and shall not be aggregated above 30 kw on a single point of common connection. A blade tool of 2.5mm (e.g. a screwdriver) is required to operate the spring loaded AC terminal blocks. The terminal blocks can be found on the printed circuit board, see Appendix A. Do not invert neutral and phase when connecting the AC.
MultiPlus-II 12V/24V/48V 3kVA 120V These ports can be used for several purposes. One application is communication with the BMS of a lithium-ion battery. 4.4.4. Voltage sense (connection terminal J, see appendix A) For compensating possible cable losses during charging, two sense wires can be connected with which the voltage directly on the battery or on the positive and negative distribution points can be measured. Use wire with a cross-section of 0,75mm².
MultiPlus-II 12V/24V/48V 3kVA 120V 5. Configuration This section is intended mainly for stand-alone applications. Settings may only be changed by a qualified electrical engineer. Read the instructions thoroughly before implementing changes. During setting of the charger, the AC input must be removed. 5.1. Standard settings: ready for use On delivery, the MultiPlus-II is set to standard factory values. In general, these settings are suitable for single-unit operation.
MultiPlus-II 12V/24V/48V 3kVA 120V Adjustability: 50 Hz; 60 Hz Input frequency range Input frequency range accepted by the MultiPlus-II. The MultiPlus-II synchronises within this range with the AC input frequency. The output frequency is then equal to the input frequency. Adjustability: 45 – 65 Hz; 45 – 55 Hz; 55 – 65 Hz Input voltage range Voltage range accepted by the MultiPlus-II. The MultiPlus-II synchronises within this range with the AC input. The output voltage is then equal to the input voltage.
MultiPlus-II 12V/24V/48V 3kVA 120V Battery type The standard setting is the most suitable for Victron Gel Deep Discharge, Gel Exide A200, and tubular plate stationary batteries (OPzS). This setting can also be used for many other batteries: e.g. Victron AGM Deep Discharge and other AGM batteries, and many types of flat-plate flooded batteries.
MultiPlus-II 12V/24V/48V 3kVA 120V When WeakAC is on, the maximum charge current is reduced by approximately 20%. BoostFactor Change this setting only after consulting with Victron Energy or with an engineer trained by Victron Energy! Programmable relay The relay can be programmed for all kinds of other applications, for example as a starter relay for a generator. Auxiliary AC output (AC-out-2) Intended for non-critical loads and directly connected to the AC input.
MultiPlus-II 12V/24V/48V 3kVA 120V 6. Maintenance The MultiPlus-II does not require specific maintenance. It will suffice to check all connections once a year. Avoid moisture and oil/soot/vapours, and keep the device clean.
MultiPlus-II 12V/24V/48V 3kVA 120V 7. Error Indications With the procedures below, most errors can be quickly identified. If an error cannot be resolved, please refer to your Victron Energy supplier. We recommend to use the toolkit app to link LED alarm codes to a description of the problem/alarm, see https:// www.victronenergy.com/support-and-downloads/software#victron-toolkit-app 7.1. General error indications Problem Cause Solution No output voltage on ACout-2.
MultiPlus-II 12V/24V/48V 3kVA 120V Problem The charger does not operate. ‘Bulk’ LED flashes and ‘Mains on’ LED illuminates Cause MultiPlus-II is in ‘Bulk protection’ mode thus, the maximum bulk charging time of 10 hours is exceeded. Such a long charging time could indicate a system error (e.g. a battery cell short-circuit). The battery is not completely charged. The battery is overcharged. The charging current drops to 0 as soon as the absorption phase initiates. Solution Check your batteries.
MultiPlus-II 12V/24V/48V 3kVA 120V Absorption and float LEDs flash synchronously (simultaneously). The battery temperature as measured has an extremely unlikely value. The sensor is probably defective or has been incorrectly connected. The device will remain in normal operation. If the "inverter on" LED flashes in phase opposition, this a VE.Bus error code (see further on). 7.3. VE.Bus LED indications Equipment included in a VE.Bus system (a parallel or 3-phase arrangement) can provide so-called VE.
MultiPlus-II 12V/24V/48V 3kVA 120V All of the conditions below must be met!: 1. The device is in error! (No AC output) 2. Inverter LED flashes (in opposition to any flashing of the Bulk, Absorption or Float LED) 3.
MultiPlus-II 12V/24V/48V 3kVA 120V Bulk LED Absorption LED Float LED Code Meaning: Cause/solution: 10 System time synchronisation problem occurred. Should not occur in correctly installed equipment. Check the communication cables. 14 Device cannot transmit data. Check the communication cables (there may be a short circuit) 17 One of the devices has assumed ‘master’ status because the original master failed. Check the failing unit. Check the communication cables.
MultiPlus-II 12V/24V/48V 3kVA 120V 8. Technical Specifications MultiPlus-II 12/3000/120-50 24/3000/70-50 PowerControl & PowerAssist Yes Transfer switch 50 A Maximum AC input current 50 A 48/3000/35-30 INVERTER DC Input voltage range 9,5 – 17 V Output when in inverter mode 19 - 33 V 38 - 66 V Output voltage: 120 VAC ± 2% Frequency: 60 Hz ± 0,1% (1) Cont. output power at 25°C (3) 3000 VA Cont. output power at 25°C 2400 W Cont. output power at 40°C 2200 W Cont.
MultiPlus-II 12V/24V/48V 3kVA 120V MultiPlus-II 12/3000/120-50 24/3000/70-50 Weight 48/3000/35-30 19 kg (42 lb) Dimensions (hxwxd) mm 578 x 277 x 148 536 x 277 x 147 536 x 277 x 147 (23 x 11 x 6 inch) (21 x 11 x 6 inch) (21 x 11 x 6 inch) STANDARDS Safety EN-IEC 60335-1, EN-IEC 60335-2-29 Emission, Immunity EN 55014-1, EN 55014-2 EN-IEC 61000-3-2, EN-IEC 61000-3-3 IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3 1. Can be adjusted to 50 Hz 3. Non-linear load, crest factor 3:1 2.
MultiPlus-II 12V/24V/48V 3kVA 120V Appendix A. Connection overview A Load connection. AC out1. Left to right: N (neutral), PE (earth/ground), L (phase) B Load connection. AC out2. Left to right: N (neutral), PE (earth/ground), L (phase) C AC input: Left to right: N (neutral), PE (earth/ground), L (phase) D Alarm contact: (left to right) NO, NC, COM. E Push button A – To perform a startup without assistants. F Primary ground connection M6 (PE). G M8 battery positive connection.
MultiPlus-II 12V/24V/48V 3kVA 120V M Terminal for: top to bottom: 1. 12V 100mA 2. Programmable contact K1 open collector 70V 100mA 3. External ground relay + 4. External ground relay – 5. Aux input 1 + 6. Aux input 1 – 7. Aux input 2 + 8. Aux input 2 – 9. Temperature sense + 10. Temperature sense – 11. Battery voltage sense + 12.
MultiPlus-II 12V/24V/48V 3kVA 120V Appendix B. Block diagram * See table in Chapter 4.
MultiPlus-II 12V/24V/48V 3kVA 120V Appendix C.
MultiPlus-II 12V/24V/48V 3kVA 120V Appendix D.
MultiPlus-II 12V/24V/48V 3kVA 120V Appendix E. Charge algorithm 4-stage charging: Bulk Entered when charger is started. Constant current is applied until nominal battery voltage is reached, depending on temperature and input voltage, after which constant power is applied up to the point where excessive gassing is starting (14.4 V resp. 28.8 V, temperature compensated). Battery Safe The applied voltage to the battery is raised gradually until the set Absorption voltage is reached.
MultiPlus-II 12V/24V/48V 3kVA 120V Appendix F. Temperature compensation Default output voltages for Float and Absorption are at 25 °C. Reduced Float voltage follows Float voltage and Raised Absorption voltage follows Absorption voltage. In adjust mode temperature compensation does not apply.
F E D C Rev01 Page 34 B A 1 1 126 148 578 2 2 277 3 3 138 148 4 4 7.5 5.1 45 478 6(4x) 5 5 242 175 6 57.5 32.5 6.2(3x) 87.5 7 Dimensions in mm 87.5 7 8 8 Dimension Drawing - MultiPlus-II PMP122305110 MultiPlus-II 12/3000/120-50 120V PMP122305120 MultiPlus-II 12/3000/120-50 120V 6 F E D C B A MultiPlus-II 12V/24V/48V 3kVA 120V Appendix G.
Page 35 F E D C B A Rev01 1 126 147 536 1 277 2 2 3 3 137 147 7.5 4 5.1 40 435 6(4x) 4 230 175 5 5 49.4 6 32.5 87.5 87.5 7 Dimensions in mm 6.
