Basic Set up Guide

Setting up a Lithium Battery

1.1   If a Lithium battery ( all Sunsynk) then make sure Lithium is selected , if AGM battery then select AGM V ( refer to manufacturers manual ) and it is important if there is no battery connected that you select  NO Batt .

1.2 Calculate the battery capacity per battery  ₍ all Sunsynk 5kW would be 100AH ) and multiply per number of batteries  and input this amount in the Batt Capacity tab.

1.3 As a rule of thumb,  a single 5 kW battery would have a    charge discharge of/  50 A and 2  or more would be   40 A per battery,  2=80 , 3=120 . but please remember each inverters limits shown_’   here

1.4 Connect the battery data cable from inverter Can port to the master battery CAN or PCS port _,  if you have any   slave batteries you will need to go from the master OUT   port to IN port on the 1st slave and OUT port on 1st slave to IN port of 2nd slave etc . Please be advised that when more than two batteries or more than one inverter are in   use,   it is strongly recommended that a bus bar be used.

Please also be aware that CATL batteries and other manufacturers will have their own type of data cable with differing pin connections, please refer to that batteries manual for data connections . 

 Further information on this topic can be found    here_.

 1.5 Protocol will be  0 unless the CAN port cannot be used and you need  to use the 485 RJ port, in this case the protocol number for all  Sunsynk Batteries will be  1 and all other batteries  will be in the battery compatibility list .

Setting up Battery Charge

2.1 Enable Grid Charge  as this will give  you the option  to select when  to charge the batteries_.

2.2 Enable Grid Signal as this will enable the system to accept the grid charge _.

Battery Discharge Settings

3.1 Battery SOC should be no lower than 20% (recommended₎  to protect the longevity of the battery,

3.2 Low Batt should be 5% above Shutdown (recommended₎  or can match that value of shutdown,                                             _.

3.3 Restart should be 10 % above Low Batt .

Program Charge & Discharge Times

4.1 As a default the SOC % will be set to 80%, so for the batteries to discharge we advise setting all SOC to the Low           Battery value in battery shutdown page (20%).

4.2 Make sure the User timer is ticked as if not ticked will result in the batteries being charged from the grid constantly, unless grid drops and then will discharge to shutdown value . 

4.3 Here   is a link to the system mode settings guide.                                                         . 

Setting the inverter to cover the GRID & LOAD port

5.1   As a default Zero export and Limit  to Load only will be ticked ,  if connected to the grid port you will need  to untick limit  to load only,  if connected to UPS then leave as limit to load only.

 5.2 If you have permissions from the DNO  to export excess PV energy back to the grid, then you  

       can tick Solar Export this will send all excess energy after the load and battery has been covered .                     

WITH THIS BASIC GUIDE THE INVERTER SHOULD START PRODUCING READINGS ON THE LOAD, PV, GRID AND BATTERIES IN THE POWER FLOW SCREEN ON THE INVERTER, IF IT DOES NOT CALL INTO TECHNICAL SUPPORT FOR FURTHER ASSISTANCE.