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Appendix C. APPENDIX C: Parallel connection

MultiPlus-II 48V 3kVA 120V

Page 31

APPENDIX C: Parallel connection

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Summary of Contents for MultiPlus-II 48/3000/35

Page 1: ...MultiPlus II 48V 3kVA 120V Rev 02 06 2021 ENGLISH...

Page 2: ...AC cabling 13 4 4 Optional Connections 14 4 4 1 Remote Control 14 4 4 2 Programmable relay 14 4 4 3 Programmable analog digital input output ports 14 4 4 4 Voltage sense connection terminal J see app...

Page 3: ...D APPENDIX D Three phase connection 32 E APPENDIX E Charge algorithm 33 F APPENDIX F Temperature compensation 34 G APPENDIX G Dimensions 35 MultiPlus II 48V 3kVA 120V...

Page 4: ...ons The installation shall be in accordance with the Canadian Electrical Code Part 1 The wiring methods shall be in accordance with the National Electrical Code ANSI NFPA 70 This product is a safety c...

Page 5: ...ty of the alternative source Where peak power is often required only for a limited period the MultiPlus II will make sure that insufficient AC mains or generator power is immediately compensated for b...

Page 6: ...extended in order to fully charge the battery Preventing damage due to excessive gassing the BatterySafe mode If in order to quickly charge a battery a high charge current in combination with a high...

Page 7: ...electing 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 Depending on th...

Page 8: ...mode supplies a higher charging voltage than most DC consuming devices can cope with These devices must be disconnected before additional charging takes place 3 3 2 Forced absorption Under certain ci...

Page 9: ...er will switch to forced absorption c If the switch is set to on after the three LED sequence has finished the charger will switch to Float d If the switch is has not been moved the MultiPlus II will...

Page 10: ...D is on Overload pre alarm and low battery pre alarm The battery is nearly exhausted and the nominal output of the inverter is exceeded The overload and low battery LEDs are both blinking alternately...

Page 11: ...d the charger operates in absorption mode The absorption LED is on Float charging The mains voltage is switched through and the charger operates in float mode The float LED is on Equalize charging The...

Page 12: ...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 ref...

Page 13: ...nce between the product and the battery to a minimum in order to minimize cable voltage losses For safety purposes this product should be installed in a heat resistant environment You should prevent t...

Page 14: ...ilated Clean battery terminals Be careful to keep corrosion from coming in contact with eyes Study all battery manufacturer s specific precautions such as removing or not removing cell caps while char...

Page 15: ...e consult your supplier or the relevant sections of our book Energy Unlimited downloadable from our website Procedure Proceed as follows to connect the battery cables Use a torque wrench with an insul...

Page 16: ...A Recommend fuse or circuit breaker 50 A 75 A 32 A Minimum wire gauge AWG 6 AWG 6 AWG 10 Ferrule pin length stripping length 0 7 inch 18 mm 0 7 inch 18 mm 0 7 inch 18 mm The inverter does incorporate...

Page 17: ...ature sensor supplied with the MultiPlus II can be connected The sensor is isolated and must be fitted to the negative terminal of the battery 4 4 6 Parallel Connection Up to six identical units can b...

Page 18: ...Note the MultiPlus II is not suitable for 3 phase delta configuration MultiPlus II 48V 3kVA 120V Page 15 Installation...

Page 19: ...n off on Battery charge curve four stage adaptive with BatterySafe mode Charging current 100 of the maximum charging current Battery type Victron Gel Deep Discharge also suitable for Victron AGM Deep...

Page 20: ...system with a separate autotransformer see VE autotransformer datasheet and manual create a 3 phase system The standard product settings are for standalone operation For parallel three phase or split...

Page 21: ...ption The output voltage of some small generator sets is too unstable and distorted for using this setting the MultiPlus II would continually switch to inverter operation For this reason the setting c...

Page 22: ...ystems with a maximum of three Multis parallel or three phase operation can be configured in a simple manner The software can be downloaded free of charge at www victronenergy com 5 3 2 VE Bus System...

Page 23: ...he 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 48V 3kVA 120V Page...

Page 24: ...ment or reduce the load Low battery and overload LEDs flash intermittently Low battery voltage and excessively high load Charge the batteries disconnect or reduce the load or install higher capacity b...

Page 25: ...n incorrect level too high Set the absorption voltage to the correct level The float voltage is set to an incorrect level too high Set the float voltage to the correct level Poor battery condition Rep...

Page 26: ...ice can perform charging operation In principle all other LEDs must be off If this is not the case the code is not an OK code However the following exceptions apply The special LED indications above c...

Page 27: ...orption LED off flashing on Float LED off 18 21 24 flashing 19 22 25 on 20 23 26 Bulk LED Absorption LED Float LED Code Meaning Cause solution 1 Device is switched off because one of the other phases...

Page 28: ...m protection initiated Should not occur in correctly installed equipment Switch all equipment off and then on again If the problem recurs check the installation Possible solution increase lower limit...

Page 29: ...GER AC Input Single phase 90 140 VAC 45 65 Hz Charge voltage absorption 57 6 V Charge voltage float 55 2 V Storage mode 52 8 V Maximum battery charge current 4 35 A Battery temperature sensor Yes GENE...

Page 30: ...inverter output g input voltage ripple too high 3 Non linear load crest factor 3 1 4 At 75 F 25 C ambient 5 Programmable relay which can be set for general alarm DC under voltage or genset start stop...

Page 31: ...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 H M8 battery minus connection I switch...

Page 32: ...ector 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 Battery vol...

Page 33: ...Appendix B APPENDIX B Block diagram See table in Chapter 4 2 Recommended DC fuse MultiPlus II 48V 3kVA 120V Page 30 APPENDIX B Block diagram...

Page 34: ...Appendix C APPENDIX C Parallel connection MultiPlus II 48V 3kVA 120V Page 31 APPENDIX C Parallel connection...

Page 35: ...Appendix D APPENDIX D Three phase connection MultiPlus II 48V 3kVA 120V Page 32 APPENDIX D Three phase connection...

Page 36: ...part of the calculated absorption time Absorption The absorption period is dependent on the bulk period The maximum absorption time is the set Maximum Absorption time Float Float voltage is applied t...

Page 37: ...ges 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 Mul...

Page 38: ...230 435 40 5 1 6 4x 49 4 98 87 5 87 5 32 5 55 6 2 3x Rev00 PMP482305100 MultiPlus II 48 3000 35 50 120V Dimension Drawing MultiPlus II Dimensions in mm D E F C 1 2 3 4 B A 3 2 1 5 C D 4 6 7 8 A B 8 7...

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