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Freedom Lite Installation Manual Revision 12 

 

                        P a g e  

15 | 30

 

 

The third-party device manuals must be referenced for all details regarding connecting the 
CAN interface. 

Most brands use 500kbps. If 250kbps is required it is available on the Lite with a specific 
profile loaded, which must be requested when ordering the Lite or can be loaded during 
commissioning by your distributor for Freedom Won technical support.  

If you did not purchase a CAN Bus cable to suit your inverter you can make your own 
according to Table 4.2. Fig 4.1 provides the standard colour coding for an Ethernet cable 
(note that there are other variations so double check this).  

 

Fig 4.1 Pin Configuration for standard RJ45 plug 

 

Table 4.2 Pin Configuration for CAN Bus Control Cable for various supported inverters 

Wire 
Function 

Standard 
Lite and 
Victron 

SMA 

Ingeteam 

Imeon 

Solax 

Goodwe 

Sofar 

CAN 
Low 

Pin 8 
(brown) 

Pin 5 (blue/ 
white) 

Labelled 
on inverter 

Pin 2 
(orange) 

Pin 1 
(orange/ 

white) 

Pin 5 
(blue/ 

white) 

Pin 2 
(orange) 

CAN 
High 

Pin 7 
(brown/ 
white) 

Pin 4 (blue) 

Pin 1 
(orange/ 
white) 

Pin 2 
(orange) 

Pin 4 
(blue) 

Pin 1 
(orange/ 
white) 

 
 

. 

 

Bridge Pin 3 and 
Pin 6 on Inverter 

end or cable with 
a 120Ω resistor 

 
 

 

 

 

 

 

If your inverter is not included in this table, please contact Freedom Won for assistance.  

4.4

 

Parallel Configurations 

It is permissible to connect multiple Freedom Lite’s in parallel provided that the Freedom 
Lite model size used is the same throughout. It is however more cost effective to purchase 
one larger Freedom Lite model than connecting multiple units in parallel. This type of 

Summary of Contents for Lite Business 40/32

Page 1: ... Assistance Contact Please contact your Freedom Won Distributor or Reseller Installer for technical and installation support A directory of Distributors and Reseller Installers is available at www freedomwon co za For advanced support please contact support freedomwon co za Update Record Revision Number Update Summary Updated By Date of Issue 12 Incorporated new model names and warranty to reflect...

Page 2: ... Larger systems are provided by Freedom Won based on specific project requirements by installing multiple units in parallel Freedom Won offers the following ranges in the LiFePO4 technology 1 Lite 12V 2 Lite Home and Business 3 Lite HV Home and Business 4 Lite Marine 5 Lite Mobility golf carts forklifts etc 6 Lite Commercial including Lite Commercial HV and HV 7 Lite Industrial This manual covers ...

Page 3: ...he rating of the built in circuit breaker 3 which has been sized below the maximum current capability of the lithium cells There is no noticeable cell temperature rise during operation and no active cooling of the cells is required The time limit for operation at the maximum current is 5 minutes in a 30 minute cycle To ensure that the circuit breaker does not trip in normal operation it is advised...

Page 4: ...P a g e 3 30 Figure 2 1 Labelled Image of the Freedom Lite Home 15 12 Labelling corresponds with the text 1 Gross Capacity 2 80 Capacity recommended for daily cycling max available is 90 3 Breaker 4 Power Cables 2 1 3 4 5 6 7 8 9 10 12 11 14 13 15 ...

Page 5: ...me 5 4 and 10 8 models can be manually lifted by two people onto its hanging points The larger units require lifting equipment of varying degrees for handling and installation as explained later in this document The dimensions given are for the principle outlines of the aluminium housing and exclude items that protrude such as the DC cable glands and the circuit breaker handle The DC cables exit t...

Page 6: ... for indoor use DC Connection Integrated Cables no per electrode 3 1x 50mm 2 1 x 50mm 2 2 x 50mm 2 2 x 50mm 2 2 x 95mm 2 2 x 95mm 2 2 x 95mm 2 2 x 95mm 2 Control Interface RJ45 Socket x 2 CAN Bus for Interfacing with Compatible Inverters and System Controllers connection of parallel batteries Protection Shunt Trip Circuit Breaker sized to suit max current can be tripped by BMS if critical fault ma...

Page 7: ...esistor more detail later in manual A DB9 Serial Connector 7 concealed is fitted to the upper left hand side of the housing for use by technicians for programming the required profile onto the BMS or updating firmware The required profile is typically loaded by Freedom Won prior to delivery but installers are advised to obtain the correct adapter to allow Freedom Won or the distributor to program ...

Page 8: ... battery onto the wall mountings The Lite 30 21 and above are supplied with permanently installed eye bolt s 3 Transport Handling and Mounting The Freedom Lite units are packaged in protective layering and fastened into a wooden crate with pallet type feet which allow lifting with a forklift or a pallet jack The Freedom Lite Home 5 4 and 10 7 models are easily handled by two people The 15 11 and 2...

Page 9: ...ed out slightly with the head protruding so that about 5mm of the bolt shank is visible This pre tightening prevents the bolt from being pushed into the wall when mounting the Lite The Freedom Lite has two keyhole shaped holes on the back which are shaped to fit over the bolt heads and then a narrowed section secures around the bolt shank as the unit is lowered into its final position The 5 4 10 7...

Page 10: ... bolt s on the models up to the Lite 20 14 can be removed after installation Ensure that you have one M12 x 1 75 thread eye bolt rated for 450kg or more for the models that are not supplied with permanently fixed eye bolts Lifting the batteries by the eye bolts should be performed using a mobile gantry crane or a high lift pallet jack Figure 3 2 Eye bolt Example Figure 3 3 Eye bolt Installation on...

Page 11: ...lift pallet jack such as shown in Figure 3 4 A site assembled gantry with electric winch is shown in Figure 3 5 This gantry is available from Freedom Won as an accessory and is available with various gantry widths Figure 3 4 High Lift Pallet Jack Models up to Lite Home 20 16 are fitted with lifting or manoeuvring handles to make placement easier See Fig 4 2 ...

Page 12: ...m to prevent damage to the plugs and glands 3 Do not allow the pallet jack to over centre if it is a model with forks longer than the lower arms 4 Take care not to knock any of the protruding items against obstacles during handling such as the DC cabling and plugs and the circuit breaker handle 5 Take care not to scratch the Lite during handling Packaging foam should be used to protect the paint w...

Page 13: ...e is red and the negative cable is black This is confirmed by and signs on the battery casing beside the respective cables See Tables 2 1 for the cable size and quantity fitted to each Freedom Lite model The cable cross sectional area is based on an acceptable voltage drop with the inverter being mounted on the wall adjacent to the Freedom Lite battery so that the cable run is less than 5m note ho...

Page 14: ...le or where a relay control from the battery may be desired is to control an alternator with a remote enable function in boats and RV s 4 3 CAN Bus Control Detailed Description CAN is a widely used communication protocol in systems with many devices that must report their status or send commands to other devices on the same network The Freedom Lite BMS can transmit messages and commands in CAN pro...

Page 15: ...r on each extreme end of the CAN cable splices do not require a resistor Most devices operating on CAN have two plugs to connect an incoming cable in and then outgoing cable on the CAN Bus The first and the last device in the chain must have a termination resistor plugged into the spare second plug These resistor plugs are available from Freedom Won if you are using Victron then you can use the Vi...

Page 16: ...ion for standard RJ45 plug Table 4 2 Pin Configuration for CAN Bus Control Cable for various supported inverters Wire Function Standard Lite and Victron SMA Ingeteam Imeon Solax Goodwe Sofar CAN Low Pin 8 brown Pin 5 blue white Labelled on inverter Pin 2 orange Pin 1 orange white Pin 5 blue white Pin 2 orange CAN High Pin 7 brown white Pin 4 blue Pin 1 orange white Pin 2 orange Pin 4 blue Pin 1 or...

Page 17: ... the CAN Bus using standard LAN cable Where CAN Bus is used to control the inverter s and charge controller s the CAN Bus from any battery preferably the Master can be connected to the inverter directly or the system controller depending on the product brand All Freedom Lite Home and Business models are shipped with hardware that enables them to be configured either as a master or as a slave This ...

Page 18: ...its Please request more detail from Freedom Won if this is your upgrade preference New units can be placed in parallel with old units up to about 5 years or 1 500 cycles after which it is preferable to trade in for a new larger unit 1 Programming the Freedom Lite The serial DB9 connector on the left hand side of the Freedom Lite is used for setting up the profile of the BMS A serial to USB adaptor...

Page 19: ...ese instances to pre charge the DC bus With Victron this can be achieved by switching on the PV to the MPPT s to allow them to apply voltage to the DC bus before closing the battery breaker If this option is not available you can switch on the AC input power to the Victron inverter as this allows the inverter to place voltage on the DC bus If you are using inverters that cannot do this you will ne...

Page 20: ... a lower pack voltage to monitor and control charging and a higher voltage for discharge will allow a greater spread in cell voltage values without any of them reaching their limits The BMS inside the Freedom Lite will deal with an excessive spread of cell voltages by balancing them out using the cell tap wires attached to each cell and its internal circuitry If a cell voltage does reach its limit...

Page 21: ...e to use SoC for controlling charge and discharge algorithms as this is the only accurate method using voltage as described above is only an approximation 4 Accessories Freedom Won offers the following accessories Table 7 1 List of Accessories Item Description 120 Ohm Termination Resistor RJ45 For plugging into the second CAN port for an end of line Battery usually these are supplied with CAN Enab...

Page 22: ...N Bus 1 and the Lite will use CAN Bus 2 For a single Lite system with CAN Bus MPPT s the MPPT s and the Lite can operate on the same CAN Bus and therefore the Color Control can be used For a system using only Ve Direct MPPT s the Lite will use one CAN Bus and hence the Color Control can be used Figure 5 1 below provides a schematic of a PV solution with battery backup and a connection to the grid ...

Page 23: ...er will then not function off battery until either the solar charge controller has recharged the battery to at least 20 SoC and will thereafter continue to operate provided that the SoC remains above 10 When grid power is restored the inverter will immediately revert back to the grid source The system design should be based on assuming only 70 to 80 DoD will be used on a routine basis with 90 DoD ...

Page 24: ...uidelines at this link will also be useful https www victronenergy com live battery_compatibility freedomwon 5 2 Victron Inverter and Grid Tie Inverter The main alternative to installing a DC charge controller is shown in Figure 8 2 This system incorporates a grid tie inverter GTI or PV inverter on the consumption side of the battery inverter Aside Note It is also possible to install a GTI on the ...

Page 25: ...the house at that time For grid connected systems ESS should be configured on the Victron system and the necessary additional assistants and settings must be added for the PV inverter For household systems this option using a GTI is typically more expensive than using a DC SCC but it is useful if a system already exists using a GTI to which a battery inverter and Freedom Lite is to be added becaus...

Page 26: ... to the battery housing external and internal fittings such as impact with other objects or being dropped is not covered by the warranty The standard warranty period is 10 years or 4 000 cycles at an average of 80 DoD whichever should first occur The battery is required to provide at least 70 of its new capacity at the end of this period or cycle count The BMS records the number of cycles used If ...

Page 27: ...sing the guide below If a problem cannot be resolved after referencing this table please contact Freedom Won or your approved Freedom Won supplier Table 14 1 Troubleshooting Guide applicable to units with On and OFF buttons No Problem Description Cause Solution 1 Eye bolts do not screw into hard point on top of Freedom Lite Check that you have the correct eye bolt with the correct thread pitch M12...

Page 28: ...ontact Freedom Won or Authorised Distributor 4 The main breaker switch keeps tripping each time I attempt to switch it on There are several potential causes 1 The Battery Management System has not been switched on The ON button must be pressed for 5 seconds On release the SoC Display must remain illuminated 2 High inrush current on certain inverters First preference is to pre charge the DC bus by ...

Page 29: ...e still on The BMS and SoC display receive power directly from the battery and therefore the OFF Button must be pressed to switch off the internal electronics 7 The inverter will not come on even though the inverter switch is selected to on The enable command may not be coming from the BMS or may not be properly connected to the inverter or the inverter may not be properly configured to deal with ...

Page 30: ...ile you make contact for assistance 10 The pack voltage is within limits but the main breaker still trips seemingly at random This could be caused by many things but is most likely because the current draw is exceeding the battery current limit setting Measure the current with a tong tester while drawing your maximum typical load to determine if you are exceeding the rated current for the respecti...

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