ElectroDacus SBMS100 User Manual

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SBMS100 / SBMS60

www.ElectroDacus.com

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Summary of Contents for ElectroDacus SBMS100

Page 1 SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...
Page 2: Table Of Contents
2. Thermal management 3. Cable selection 4. External Load 5. Battery temperature 6. The 20pin connector 7. Selecting the battery and PV panels 8. WiFi 9. Internal data logging 10. User interface SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...
Page 3 Simplified circuit diagram for the SBMS100 with max configuration. (Two PV arrays each with 6x 250W PV panels for a total of 3kW). Brown Brown Black& & White Black White Grey Grey Orange Orange Purple Purple Yellow Yellow Green Green...
Page 4: Specifications
PV1+ and PV2+ with separate current measurement and ideal diode PV1+ and PV2+ with separate current measurement and ideal diode PV1 or PV2 max current SBMS60 ( 72A ) / SBMS100 ( 72A ) PV1 or PV2 max current SBMS60 ( 72A ) / SBMS100 ( 72A )
Page 5: Install Instructions
Connect the 10pin monitor and balancing cable. Make sure this is the second one to be connected after Batt+ and never disconnect while anything else is connected except for Batt+. (see details on page 3 or Parameter Settings on how this has to be connected to individual cells). SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...
Page 6 Load OFF and then push OK to enable this. You should see CFET and DFET flags change state from highlighted to not being highlighted meaning that load+, PV1 and PV2 are disconnected internally. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 7 Connect the PV1 and or PV2 to your PV array to appropriate size circuit breaker in OFF position. See the page 16 for the type of PV panels recommended based on the number of cells and battery voltage. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...
Page 8 Check the first page of the Monitoring Menu to see if all works correctly. You are done. Make sure you follow the install procedure in reverse when you want to remove the SBMS. Never remove the Batt+ or 10pin cell monitoring connector while PV1, PV2 or Load+ is connected. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 9: Thermal Management
The SBMS60 and SBMS100 will need to be mounted on an appropriate size heatsink able to dissipate the max TDP (Total Dissipated Power) that is as high as 22W for SBMS100 and 14W for the SBMS60 at full load (charge and discharge at the same time).
Page 10 So total 10W + 6W + 6W = 22W on full load SBMS100 The SBMS100 without any heatsink or fan can at most dissipate 4W to 5W so below is an example with lower power to allow this. Example SBMS100 with max 40A load and 24A on each PV on Load+ TDP = 40A x 40A x 0,001Ω...
Page 11: Cable Selection
When you connect the cable to the SBMS power connectors please do not use to much torque. Since you will probably using a 4mm hex allen key the force pushing on the cable will be multiplied 628 times even with just a 10cm long key. Excessive force can break the connectors from the PCB. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 12: External Load
4 External Load 4 External Load On both SBMS60 and SBMS100 an External Load can be connected allowing large loads of up to 500A to be connected. Remote ON/OFF USART TX 01 02 USART RX SDA / EXT IO1 03 04...
Page 13 ExtLoad shunt resistance value in [mΩ] so that SBMS is able to calculate and display current correctly. Example 1) 500A 75mV shunt will have a resistance value of 75mV / 500A = 0.1500mΩ. Example 2) 75mV / 200A = 0.3750mΩ Example 3) 75mV / 10A = 7.5000mΩ. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...
Page 14: Battery Temperature
Value is a 12bit binary number and if you use the recommended thermistor the 0°C=3144b,+5°C=3000b, +50°C=1338b, +55°C=1182b, +60°C=1040b. You can see the actual temperature in Monitoring menu and the raw binary value in Diagnostic menu. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 15: The 20Pin Connector
Ext ADC inputs 2,3,4 with analog input range of 0 to 1.8V that will be logged in the internal SBMS memory at 2 minute 17, 18 & 19 intervals but not used in any automation with the latest firmware version. This are good if you want to log some other analog signals. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 16: Selecting The Battery And Pv Panels
But LiCoO2 will in most cases be more expensive than LiFePO4 over the life of the battery so unless you find like new cells from a damaged EV for less than $100/kWh as of 2016 is best to get LiFePO4 that is around $400/kWh new but also lasts at least 4x longer and is safer to use. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 17 There are 3 locations for each group and they are with in 10% of each other so it made sense to group them to keep the table clean. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 18: Wifi
8 WiFi Both SBMS100 and SBMS60 include a WiFi module that can be used for remote monitoring. The SBMS acts as an AP (Access Point) and will deliver data to a WiFi enabled computing device that supports a HTML5 capable web browser (a smart phone, tablet or laptop/desktop computer).
Page 19 The sbms variable is the one containing the most important data and I will go in to more details about that one in the next chapter related to SBMS internal data logging. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 20: Internal Data Logging
+ - sign for battery charging (+) and discharging (-) used as it is no compression. BAT - Battery current in mA from -750000mA to +150000mA PV1 - PV1 input current in mA PV2 - PV2 input current in mA SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...
Page 21 EXT - Ext Load current (the use of 10A up to 500A 75mV external current shunt is possible on both SBMS60 and SBMS100 see page AD2 , AD3 and AD4 - user available ADC inputs the value is the digital output of the ADC.
Page 22 %N( 3'$61#$*GrGwGxGvGvGtGqGv*Y##-#(J####$C##################%N( 3'$63#$*GpGuGvGtGrGqGpGt*X##-#(T####$7##################%N( 3'$65#$*GnGrGtGqGpGpGnGq*Y##- #(c####$-##################%N( 3'$67#$*GmGqGsGpGoGnGkGo*X##-#(j#####z##################%N( 3'$69#$*GjGpGqGnGnGmGiGn*W##-#(w#####o################## %N( 3'$6;#$*GhGmGnGlGlGiGhGm*W##-#))#####e##################%N( 3'$6=#$*GfGlGmGjGiGiGgGj*W##-#)/#####Y##################%N( 3'$6?#$*GfGkGlGiGiGgGgGi*S##-#)? #####M##################%N( 3'$6A#$*GcGiGjGhGhGfGdGh*W##-#)K#####I##################%N( 3'$6C#$*GcGiGjGgGgGeGcGg*U##-#)N#####<################## %N( 3'$6E#$)GbGhGiGfGeGdGbGf*U##-#)b#####1##################%N( 3'$6G#$)GbGgGhGfGfGbGbGf*W##-#)b#####(##################%N( 3'$6I#$)GaGgGhGdGeGcGaGd*U##- #)r########################%N( 3'$6K#$)G`GeGeGcGcG`G_Gc*V##-#)r########################%N( 3'$6M#$)G`GfGgGcGbGaG`Gb*V##-#){######################## %N( 3'$6O#$)GaGfGhGdGcGbGbGc*V##-#&f########################%N( 3'$6Q#$)G_GfGgGfGcGaGaGc*X##-#&a######################## %N( 3'$6S#$)G_GfGgGdGcGbGaGb*W##-#&e########################%N( 3'$6U#$)G`GfGfGdGcGbGaGb*U##-#&f######################## %N( 3'$6W#$)G`GeGfGdGcGaGaGb*X##-#&p########################%N( 3'$6Y#$)G^GfGfGcGbGaG_Gc*U##-#&p######################## %N( 3'$6[#$)G_GeGfGcGbGaG`Ga*W##-#&r########################%N( 3'$6]#$(G^GfGgGcGbGaG`Gb*Y##-#&j########################%N( "; SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...
Page 23: User Interface
After the first full charge (on battery type 1 when highest cell gets to 3.53V and EOC flag will be set the battery SOC will jump to 100% ) from that point SOC indication will represent the real value. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 24 By pressing the OK button while in this menu you will be presented with a small submenu allowing you to change the display from current measured with 1mA resolution to power measured with a 0.1W resolution. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 25 You can reset this counters every day if you want since there is also a total counter you will be able to find in the About menu and you can read more about that one later in this manual. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 26 LVC is also an error and means that one of the cells has a voltage so low that normal charging is not allowed (you can manually charge that cell with a small current and see if it can be recovered). SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 27 All this graphs can be zoomed in by using the OK button and selecting one of the 3 options PV, Battery and Load. The mini graphs are auto scaling and the peak in each graph is represented by a number displayed on the top right corner of the graph. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 28 4 minutes and you can select that again by pressing the OK button and being presented with a submenu. In this zoomed graphs you also have the possibility to use a cursor to make measurements on the graph and the cursor can be moved with the up and down keys. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 29 ISL94203 EEPROM and for this to take effect a power cycle will be needed as explained in install instructions. *the parameters can not be set while SBMS is powered by USB you need to be connected to a battery to use Store Parameter button. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 30 ISL94203 when you select a Cell Type all the values will be set to the default. *the parameters can not be set while SBMS is powered by USB you need to be connected to a battery to use Store Parameter button. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 31 To enable internal data log you need to set the time and date. While in the time and date menu the data logging is disabled but once you get out of that menu after you set the date and time the internal data log is enabled and you will see the “mem” symbol under WiFi symbol highlighted. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 32 Key lock time out is the amount of time in minutes until the capacitive touch keys will be locked and to unlock you will need to push 3 keys in the flowing order OK,UP,DOWN (there will be on screen instructions about this). If set to zero keys will never get locked. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 33 921.6kbps is used by the WiFi module. The log interval represents the interval at witch the compressed log data will be sent over automatically (no request is necessary). You just need a device reading and storing the data. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 34 The lower part is the raw response of the module to CWSAP command if WiFi module is ON. Check page 18 for more details on the WiFi SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...
Page 35 The ones with a different color represent a transmission error but that will be “corrected” so there will be no missing data but there may be some data sent twice still not a problem since no data is missing. For more details on how to use this to download data over WiFi check page 20 SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 36 The Save device settings will just give you a confirmation that data where saved but the Factory reset that actually just deletes this saved settings so that default are loaded initially needs also a confirmation. So for Factory reset you need to push OK once then it will ask to confirm by pushing the OK button again. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 37 You will notice that since at small currents there will be no reading and after current is above the offset level the reading will exist but it will have the subtracted offset value. If you add that offset in here the reading will be more accurate since it will include that negative offset. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 38 This is just useful for development there are some raw ADC readings and the content of the ISL94203 memory again as raw data. Since I used this during development I decided to leave in the final release but is not useful for most people. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 39 The SBMS has build in install instructions and a basic manual so if you do not have this pdf manual but have access to SBMS and an micro-usb cable you can read the install instructions from the SBMS LCD. SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com...
Page 40 There is also an UP Time counter that will count the number of hours the SBMS was powered. This is the SBMS100 installed on my small 20Ah 24V battery connected to a single 260W PV panel and as load there are two 5W LED lights that work 10 to 15h/day so not much energy was used in those 1391 hours since it was installed.
Page 41 SBMS100 / SBMS60 SBMS100 / SBMS60 www.ElectroDacus.com www.ElectroDacus.com...

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