MultiPlus 1. Safety instructions Please familiarise yourself with the safety features and instructions by first reading the documentation supplied with this product before using the equipment. This product has been designed and tested in accordance with international standards. The equipment must be used exclusively for the purpose for which it was designed 1.1.
MultiPlus Refer to the battery manufacturer's manual for information on transport, storage, charging, recharging, and disposal of the battery. 1.4. Symbols on enclosure Symbol Description Caution, risk of electric shock. Refer to the operating instructions. IP21 Protected from touch by fingers and objects greater than 12 millimetres. Protected from condensation.
MultiPlus 2. Description 2.1. Scope This manual applies to the following inverter/charger models: • MultiPlus 12/500/20-16 120V VE.Bus • MultiPlus 12/800/35-16 120V VE.Bus • MultiPlus 12/1200/50-16 120V VE.Bus 2.2. General Multifunctional The Multi gets its name from the multiple functions it can perform. It is a powerful true sine wave inverter, a sophisticated battery charger that features adaptive charge technology and a high-speed AC transfer switch in a single enclosure.
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MultiPlus More on batteries and charging Our book “Energy Unlimited’ offers further information on batteries and battery charging and is available free of charge on our website (see https://www.victronenergy.com/support-and-downloads/technical-information). For more information on adaptive charging, please also refer to the Technical Information section on our website.
MultiPlus 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 “Charger”...
MultiPlus For the latest and most up-to-date information about the blink codes, please refer to the Victron Toolkit app. Scan the QR code or click on the below link to go to the Victron software downloads webpage. https://www.victronenergy.com/support-and-downloads/software 3.3. Remote control Remote control is possible with a 3-position switch or with a Digital Multi Control panel.
MultiPlus 4. Installation This product may only be installed by a qualified engineer. Each system requires a method of disconnecting the AC and DC circuits. If the overcurrent protection device is a circuit breaker, it will also serve as the disconnect. If fuses are used, separate disconnect switches will be needed between the source and the fuses.
MultiPlus 4.1. location The product must be installed in a dry, well-ventilated and heatproof area. For safety purposes, this product should be installed in a heat-resistant environment. You should prevent the presence of e.g. chemicals, synthetic components, curtains or other textiles, etc., in the immediate vicinity. There should be a clear space of at least 10cm around the appliance for cooling.
MultiPlus 4.3. AC connection This product is a safety class I product (supplied with a ground terminal for safety purposes). Its AC input and/or output terminals and/or grounding point on the outside of the product must be provided with an uninterruptible grounding point for safety purposes. chapter, that automatically connects the Neutral The Multi is provided with a ground relay, see the Internal wiring diagram [23]...
MultiPlus 4.4.5. Parallel connection The MultiPlus can be connected in parallel with several identical devices. To this end, a connection is established between the devices by means of standard RJ45 UTP cables. The system (one or more MultiPlus units plus an optional control panel) will require subsequent configuration, see the Configuration [13] chapter.
MultiPlus 5. Configuration Settings may only be changed by a qualified engineer. Carefully read the instructions before changes are made. Batteries should be placed in a dry and well-ventilated area during charging. 5.1. Standard settings: ready for use On delivery, the Multi is set to standard factory values. In general, these settings are suitable for single-unit operation. Warning: The standard charging voltage might not be appropriate for your batteries.
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MultiPlus Input frequency range Input frequency range accepted by the Multi. The Multi synchronises within this range with the AC input frequency. The output frequency is then equal to the input frequency. Adjustability: 55 – 65 Hz. Inverter voltage Output voltage of the Multi in battery operation. Adjustability: 95-128V.
BoostFactor Change this setting only after consulting with Victron Energy or with an engineer trained by Victron Energy! Programmable relay By default, the programmable relay is set as an alarm relay, i.e. the relay will de-energise in the event of an alarm or a pre-alarm (inverter almost too hot, ripple on the input almost too high, battery voltage almost too low).
MultiPlus Note that some settings can also be changed with DIP switches (see the next Configuration by DIP switches [16] chapter). 5.4. Configuration by DIP switches Some settings can be changed with DIP switches. Procedure: Turn the Multi on, preferably without load and without AC voltage on the input. The Multi will then operate in inverter mode. Set the DIP switches as required.
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MultiPlus Example 1 (factory setting) Example 2 Example 3 1: 3-position switch connected 1: 3-position switch connected 1: 3-position switch connected 2,3: GEL 14.4V 2,3: GEL long life 14.4V 2,3: Tubular plate 15V (lithium) 4: any position 4: any position 4: any position 5: Search mode off 5: Search mode on...
Proceed as follows for quick detection of common faults. DC loads must be disconnected from the batteries and the AC loads must be disconnected from the inverter before the inverter and/or battery charger is tested. Consult your Victron Energy dealer if the fault cannot be resolved. Problem...
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MultiPlus Problem Cause Solution Alternative 2: Unplug battery temperature sensor from the Multi. Reset the Multi by switching it off, then Battery temperature sensor faulty wait for 4 seconds and switch it on again. If the Multi now charges normally, the battery temperature sensor is faulty and needs to be replaced.
MultiPlus 7. Technical data 7.1. Technical specifications MultiPlus 12/500/20 - 120V 12/800/35 - 120V 12/1200/50 - 120V PowerControl / PowerAssist Yes / Yes Transfer switch INVERTER DC Input voltage range 9.5 - 17V AC output voltage 120V ±2% AC output frequency 60Hz ±0.1% Cont.
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MultiPlus MultiPlus 12/500/20 - 120V 12/800/35 - 120V 12/1200/50 - 120V Road vehicles ECE R10-4 1) Protection 2) Non-linear load, crest factor 3:1 a. Output short circuit 3) Up to 25°C (77°F) ambient b. Overload 4) Programmable relay which can be set for: •...
MultiPlus 7.3. Internal wiring diagram Description AC input (L, N, PE). AC output (L, N, PE). Ground AC input and AC output are connected to chassis. Back feed safety relay. Ground relay (closed when the back feed relay is open). DC fuse.
MultiPlus 7.4. Four-stage charge algorithm charge stage Description Bulk Entered when charger is started. Constant current is applied until the gassing voltage is reached (14,4 V resp. 28.8V, temperature compensated). Battery safe If, in order to quickly charge a battery, a high charge current in combination with a high absorption voltage has been chosen, the Multi will prevent damage due to excessive gassing by automatically limiting the rate of voltage increase once the gassing voltage has been reached.
MultiPlus 7.5. Temperature compensation charge chart • 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. Page 25 Technical data...
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