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• Cable too thin - remember that the current will be higher when the PV voltage is lower. For more information on cable thickness

see the

Wiring Unlimited book

.

MC4 terminals

• Current has exceeded 30A per connector pair.

• Incorrectly crimped MC4 connectors.

• Bad quality MC4 connectors used

6.6.7. Optimisers cannot be used

Do not use solar panels with optimisers together with the solar charger.

Nearly all optimisers contain an MPPT or other tracking mechanisms and this interferes with the MPPT algorithm in the solar
charger.

6.6.8. Ground current

The system should not have a current flowing to ground under normal operation.

If a ground current is detected, first investigate all the equipment connected to that system and check for ground faults.

Next, check how many connections to ground the system has. There should only be a single point in the system connected to
ground . This should be at the battery.

For more information on system grounding, see chapter 7.7: "System grounding" in the

Wiring Unlimited book

.

The Multi RS Solar connection between PV DC and battery DC is fully galvanically isolated.

The connection between PV DC and AC output is not isolated.

6.7. Communication issues

This chapter describes issues that might arise when the solar charger is connected to the VictronConnect app, other Victron
devices or third-party devices.

6.7.1. VictronConnect issues

For a full troubleshooting guide on the VictronConnect app see the

VictronConnect manual

.

6.7.2. Bluetooth issues

Please note that it is highly unlikely that the Bluetooth interface is faulty. The problem is most likely caused by something else.
Use this chapter to quickly rule out some of the common causes of Bluetooth issues.

For a full troubleshooting guide see the

VictronConnect manual

.

•

•

Check if Bluetooth is enabled

It is possible to enable/disable Bluetooth in the product settings. To re-enable:

Connect to the solar charger via the VE.Direct port.

Navigate to the controller settings and then to "product info".

Re-enable Bluetooth.

•

Check if the controller is powered-up

Bluetooth is active as soon as the solar charger is powered-up.

•

Check that Bluetooth is in range

In open space the maximum Bluetooth distance is about 20 meters. In a build-up area, inside a house, a shed, a vehicle or a
boat this distance can be a lot less.

•

The Windows VictronConnect app does not support Bluetooth

The Windows version of the VictronConnect app does not support Bluetooth. Use an Android, iOS or macOS device instead. Or
alternatively connect using a

VE.Direct to USB interface

.

•

The controller is missing in the VictronConnect device list

Multi RS Solar

Page 32

Troubleshooting Guide - MPPT

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Содержание Multi RS Solar

Страница 1: ...Multi RS Solar Rev 02 01 2022 ENGLISH ...

Страница 2: ...insulation faults Earth fault alarm notification 10 4 5 Cable connection sequence 10 4 6 Battery Connection procedure 10 4 7 Connection of the AC cabling 11 4 8 VE Direct 11 4 9 VE Can 11 4 10 Bluetooth 12 4 11 User I O 12 4 11 1 Remote on off connector 12 4 11 2 Programmable relay 12 4 11 3 Voltage sense 12 4 11 4 Temperature sensor 12 4 11 5 Programmable analog digital input ports 12 4 11 6 User...

Страница 3: ...on issues 33 6 7 4 VE Smart communication issues 33 6 8 Settings or firmware issues 33 6 8 1 Incorrect settings 33 6 8 2 Firmware issues 33 6 8 3 Interrupted firmware update 34 6 9 Operation issues 34 6 9 1 Unable to operate as a power supply 34 6 9 2 Relay issues 34 6 10 Errors and error codes 34 6 10 1 Error codes 35 6 11 Warranty 36 7 Technical Specifications 37 8 Appendix 39 8 1 Appendix A Con...

Страница 4: ... Inverter ac voltage on output 46 8 5 20 Notification 65 Communication warning 46 8 5 21 Notification 66 Incompatible device 46 8 5 22 Error 67 BMS Connection lost 46 8 5 23 Error 68 Network misconfigured 46 8 5 24 Error 114 CPU temperature too high 46 8 5 25 Error 116 Calibration data lost 46 8 5 26 Error 119 Settings data lost 46 8 5 27 Error 121 Tester fail 47 Multi RS Solar ...

Страница 5: ...You must read it to understand how to use your product safely and reliably This manual applies to Multi RS Solar IMPORTANT The Multi RS Solar has limitations and restrictions that are subject to change with updates to firmware please contact your Victron Dealer or Victron Sales Manager prior to purchase to understand these limitations and if this product is suitable for your specific application F...

Страница 6: ...t least 196 strands class 5 or higher stranding according to VDE 0295 IEC 60228 and BS6360 An AWG2 gauge cable should have at least 259 26 stranding 259 strands of AWG26 Maximum operating temperature 90 C Example of suitable cable class 5 Tri rated cable it has three approvals American UL Canadian CSA and British BS In case of thicker strands the contact area will be too small and the resulting hi...

Страница 7: ...and check that the ventilation vents are not blocked Installation of this product must in a location that restricts access by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety The connections to live parts ...

Страница 8: ...mable All programmable settings for this product can be changed with either a mobile phone or computer Windows requires VE Direct to USB dongle using the free VictronConnect software available on the App Store of your device or www victronenergy com 3 5 Programmable relay The product is equipped with a programmable relay The relay can be programmed for different applications for example as a start...

Страница 9: ...t the battery supply Isolated PV connections for additional safety Full galvanic isolation between PV and battery connections provide additional overall system safety Temperature Protected Over temperature protection and power derating when temperature is high 3 11 Interfacing and Communications VE Direct port and two VE Can ports The Multi RS Solar only supports a data connection to a GX device i...

Страница 10: ...tery voltage sense the correct charge voltage Voltage loss due to cable resistance can be compensated by using the voltage sense facility to measure voltage directly on the DC bus or on the battery terminals Battery voltage and temperature compensation The temperature sensor supplied with the product serves to reduce charging voltage when battery temperature rises This is particularly important fo...

Страница 11: ...y charged state Optional external voltage and temperature sensor Wired connections are available for battery voltage and temperature sensing The Solar Charger uses these measurements to optimize its charge parameters The accuracy of the data it transmits will improve battery charging efficiency and prolong battery life The Smart Battery Sense and other VE Smart networking features are not currentl...

Страница 12: ...ely high ambient temperature will result in the following Reduced service life Reduced charging current Reduced peak capacity or shutdown of the inverter Never position the appliance directly above lead acid batteries The unit is suitable for wall mounting For mounting purposes a hook and two holes are provided at the back of the casing The device must be fitted vertically for optimal cooling For ...

Страница 13: ...s for system designers to connect larger arrays and can be useful in case a certain panel configuration results in a short circuit current just slightly above 20A or to oversize the array to take care of winter versus summer PV yield While functional with correct installation BEWARE that the product warranty will be void if a PV array with a short circuit current larger than 20A array is connected...

Страница 14: ...lvanically isolated from the PV array This ensures that PV array voltages cannot leak to the battery side of the system in a fault condition 4 5 Cable connection sequence First Confirm correct battery polarity connect the battery Second if required connect the remote on off and programmable relay and communications cables Third Confirm correct PV polarity and then connect the solar array if incorr...

Страница 15: ... connected to the terminal block AC in From left to right L phase PE earth and N neutral The AC input must be protected by a fuse or magnetic circuit breaker rated at 32A or less and cable cross section must be sized accordingly If the input AC supply is rated at a lower value the fuse or magnetic circuit breaker should be down sized accordingly AC out 1 The AC output cable can be connected direct...

Страница 16: ...onnected to the Charger output of the smallBMS Inverter on off and charging operation is now controlled by the smallBMS 4 11 2 Programmable relay Programmable relay which can be set for general alarm DC under voltage or genset start stop function DC rating 4A up to 35VDC and 1A up to 70VDC 4 11 3 Voltage sense For compensating possible cable losses during charging two sense wires can be connected ...

Страница 17: ...tive 9 TSENSE Temperature Sensor negative 10 TSENSE Temperature Sensor positive 11 VSENSE Voltage Sensor negative 12 VSENSE Voltage Sensor positive 4 12 Programming with VictronConnect This guide will help you with the specific elements of VictronConnect that relate to the MPPT Solar Charge Controller More general information about the VictonConnect App how to install it how to pair it with your d...

Страница 18: ...ax charge current Allows the user to set a lower maximum charge current Charger enabled Toggling this setting turns the Solar Charger off The batteries will not be charged This setting is intended only for use when carrying out work on the installation Charger settings Battery preset Battery preset allows you to select the battery type accept factory defaults or enter your own preset values to be ...

Страница 19: ...V Vb 12 2 V x 2 3 04 00 hours 12 2 V Vb 12 6 V x 1 3 02 00 hours Vb 12 6 V x 2 6 01 00 hours The multiplier is applied to the maximum absorption time setting and this results in the maximum duration of the absorption period used by the charger The maximum absorption times shown in the last column of the table are based on the default maximum absorption time setting of 6 hours Maximum absorption ti...

Страница 20: ...qualization option The default battery type is a VRLA battery and any user defined battery will behave as a tubular plate battery with regard to equalization Equalisation stop mode Set how the equalisation will end There are two possibilities first is if the battery voltage reaches the equalisation voltage and the second is on fixed time where the maximum equalisation duration is used Maximum equa...

Страница 21: ...e by selecting Stop Equalize 4 13 Connecting to AC PV inverters The Multi includes a built in AC PV inverter detection system When there is a feedback of AC PV a surplus from the AC out connection port the Multi will automatically enable an AC output frequency adjustment While no further configuration is required it is important that the AC PV inverter is configured correctly to respond to the fre...

Страница 22: ...sitive number discharging shows negative number Current DC voltage Temperature State of charge and Time to go Battery state e g discharging bulk absorption float etc These items are only visible if the data is available Communicating on any interface e g Bluetooth VE Can etc Bluetooth Enabled Icon colour changes when connected Blinking Error or Warning Inverter Active Multi RS Solar Page 18 Operat...

Страница 23: ... array during the day Clicking on any day bar in the graph will expand the information to show charge status times both as hrs m and also as a percentage of the charge day This graphic provides an at a glance representation of how much time your charger is spending in each of three modes Bulk Absorption Float Tip You can use the charge times to see if the PV array is properly sized for your requir...

Страница 24: ...rgy has been converted by the installation since the last reset 5 3 Protections and automatic restarts 5 3 1 Overload Some loads like motors or pumps draw large inrush currents during start up In such circumstances it is possible that the start up current exceeds the over current limit of the inverter In this case the output voltage will quickly decrease to limit the output current of the inverter...

Страница 25: ...u can temporarily disable this function in VictronConnect to allow charging to resume then enable it again See the Technical Data table for default low battery shut down and restart levels They can be changed with VictronConnect computer or app Alternatively Dynamic Cut off can be implemented see https www victronenergy com live ve direct phoenix inverters dynamic cutoff 5 3 3 High battery voltage...

Страница 26: ...ered by warranty Check if there are burn or melting marks on the housing or if there is a burn smell all very unlikely If this is the case lodge a support request with your Victron dealer or distributor Depending on the cause this damage might not covered by warranty 6 2 2 Battery supply check Check if the solar charger is receiving battery supply The normal way to check the battery voltage is via...

Страница 27: ...the battery it is very well possible that the controller is not receiving the battery supply there is no voltage at the battery terminals of the solar charger Possible causes can be Loose or missing battery cables Loose cable connections or badly crimped cable terminals A blown or missing fuse in the battery supply cable Open or faulty circuit breaker in the battery supply cable Missing or incorre...

Страница 28: ... reverse battery polarity and any damage caused by this is not covered under warranty Always verify the battery polarity before reconnecting the battery wires to the solar charger 6 3 3 PV voltage too low The solar charger will commence charging when the PV voltage is a minimum of 120V Once charging has commenced the PV voltage must remain higher than 80V for charging to continue Check the PV and ...

Страница 29: ...s printed on the front or on the side of the housing of the controller and in the product specification sheets The solar charger stops charging if the PV voltage exceeds the maximum rated PV voltage At the same time it will display an overvoltage error 33 and will fast blink its absorption and float LED Charging will not recommence until the PV voltage has dropped 5V below the rated maximum voltag...

Страница 30: ... if charging is allowed and when charging is allowed what charge voltage and currents are used If external control is active this will be displayed in the VictronConnect App and also on the GX device The BMS of a managed battery can directly turn the charger on or off via a remote L H connections If the charge settings are correctly set and if all battery cells are balanced the BMS should never di...

Страница 31: ...ries have been charged in the Bulk Absorption and Float stage each day for the last 30 days If you click on one of the histogram columns you will see a breakdown of the charge stages You can use the charge times to see if the PV array is properly sized for your requirements A system which never reaches the float stage could have the following issues Not enough solar panels Too much load A problem ...

Страница 32: ...rence 6 4 7 Wrong temperature compensation setting If the temperature compensation coefficient is set incorrectly the batteries can be undercharged or be overcharged The temperature compensation can be set via VictronConnect or via a display To find out the correct temperature compensation coefficient setting for your battery refer to the battery documentation When in doubt use the default value o...

Страница 33: ... cells will receive the broken cell s charge voltage and thus will be overcharged To fix this replace the battery In case of multiple battery system replace the whole battery bank It is not recommended to mix batteries of different ages in one battery bank It is hard to tell what has exactly happened to a battery during its lifetime The solar charger will keep 30 day of battery voltage history If ...

Страница 34: ...o the solar charger Damage due to overcurrent is not covered under warranty Refer to the solar chargers technical specifications for the maximum PV short circuit power current rating 6 6 2 PV yield less than expected Check the solar charger history in the VictronConnect app Check the total maximum power Pmax for each day Does this match the array power To find the potential solar yield per day for...

Страница 35: ... it in such a way that the generated heat can dissipate Ideally mount the solar charger on a vertical surface with the terminals facing downwards If the solar charger is located in a closed enclosure such as a cabinet make sure that cold air can enter and hot air can leave the enclosure Mount vents in the enclosure For very hot environments consider mechanical air extraction or provide air conditi...

Страница 36: ...ght arise when the solar charger is connected to the VictronConnect app other Victron devices or third party devices 6 7 1 VictronConnect issues For a full troubleshooting guide on the VictronConnect app see the VictronConnect manual 6 7 2 Bluetooth issues Please note that it is highly unlikely that the Bluetooth interface is faulty The problem is most likely caused by something else Use this chap...

Страница 37: ...ent pins If this is the case use long nose pliers to straighten the pins while the unit is unpowered VE Direct TX port issues Check the TX port function setting in VictronConnect Does the set function match the application it is being used in To test if the TX port is operational check its functionality using a TX digital output cable VE Direct RX Port issues Check the RX port function setting in ...

Страница 38: ...pply will not damage the solar charger but it is not guaranteed that the solar charger is able to run all types of loads Some type of loads might run others might not Especially at low load power the solar charger is too slow to keep the voltage constant As such we do not provide support in these kind of situations 6 9 2 Relay issues The alarm relay has 3 contacts common C normally open NO and nor...

Страница 39: ...the History tab and look at the bottom of each day column If there is an error an orange dot will indicate an error Active Error and Historical error Errors via a display The display keeps track of the last 4 errors The errors are indicated by a number Monitoring via a GX device and VRM If the solar charger is connected to a GX device all its data can be accessed via the GX device The GX device wi...

Страница 40: ...t return the product together with the receipt of purchase to the point of purchase This limited warranty does not cover damage deterioration or malfunction resulting from alteration modification improper or unreasonable use or misuse neglect exposure to excess moisture fire improper packing lightning power surges or other acts of nature This limited warranty does not cover damage deterioration or...

Страница 41: ...art 43 6 V adjustable SOLAR Maximum DC voltage 450 V Start up voltage 120 V MPPT voltage range 2 80 450 V Maximum operational PV input current 18 A Max PV short circuit current reverse polarity protection 3 20A Max PV short circuit current Isc PV 30A Earth leakage trip level 30 mA Isolation fail level detection before start up 100 kΩ CHARGER Programmable charger voltage range 2 Minimum 36 V Maximu...

Страница 42: ...oat voltage For example a 52 8V float voltage results in a maximum PV VOC of 422 4V See product manual for further information 3 A higher short circuit current may damage the controller if PV array is connected in reverse polarity 4 The maximum charge current from the built in MPPT is 80A to reach the 100A maximum charge current of the unit requires additional AC PV connected 5 Programmable relay ...

Страница 43: ...8 Appendix 8 1 Appendix A Connection Overview Figure 2 Multi RS Solar Front Multi RS Solar Page 39 Appendix ...

Страница 44: ..._IN Common negative for programmable auxiliary inputs 3 AUX_IN1 Programmable auxiliary input 1 positive connection 4 AUX_IN2 Programmable auxiliary input 2 positive connection 5 REMOTE_L Remote on off connector Low 6 REMOTE_H Remote on off connector High 7 RELAY_NC Programmable relay Normally Closed connection 8 RELAY_COM Programmable relay common negative 9 TSENSE Temperature Sensor negative 10 T...

Страница 45: ...8 2 Appendix B Block Diagram Figure 5 Multi RS Solar Battery 48 VDC Internal DC bus AC output 230VAC PV input 80 450VDC AC input 230VAC Multi RS Solar Page 41 Appendix ...

Страница 46: ...Figure 6 Multi RS Solar 48V Battery Optional additional PV array with SmartSolar MPPT RS Multi RS Solar AC2 loads Up to 4 kW 80 ʹ 400V PV array VE Can Connections GX device AC1 loads AC input grid connection Multi RS Solar Page 42 Appendix ...

Страница 47: ... 127 1 119 7 5 127 43 4 6 4x 369 7 240 380 4 1 26 3 98 3 120 120 55 30 6 2 3x Rev00 Dimension Drawing Multi RS Solar PMR482602020 Multi RS Solar 48 6000 100 450 100 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 6 5 F E Multi RS Solar Page 43 Appendix ...

Страница 48: ...owed by a shutdown due to high DC ripple within 30 seconds of restarting the inverter will shutdown and stops retrying To restart the inverter switch it Off and then On Continuous high DC ripple reduces the inverter life expectancy 8 5 7 Error 14 Battery low temperature The charger is stopped to avoid charging LiFePO4 batteries at low temperature as this damages the cells 8 5 8 Error 20 Maximum Bu...

Страница 49: ...t auto reset Check the installation and restart the unit using the power switch 8 5 15 Error 50 Error 52 Inverter overload Inverter peak current Some loads like motors or pumps draw large inrush currents in a start up situation In such circumstances it is possible that the start up current exceeds the over current trip level of the inverter In this case the output voltage will quickly decrease to ...

Страница 50: ... it 8 5 23 Error 68 Network misconfigured Applies to SmartSolar BlueSolar MPPTs VE Can FW version v1 04 or higher and SmartSolar VE Direct MPPTs FW version v1 47 To clear the error on the SmartSolar VE Direct MPPTs update the FW version to v1 48 or higher To clear the error on the SmartSolar BlueSolar MPPTs VE Can update the software If the error persists it will be because the charger is connecte...

Страница 51: ... Error 121 Tester fail If the unit does not work and error 121 pops up as the active error the unit is faulty contact your dealer for a replacement If the error is only present in the history data and the unit operates normally this error can be ignored safely Explanation when the unit powers up for the very first time in the factory it does not have calibration data and an error 121 is logged Obv...

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