SOK SK48V100 Owner's/Operator's Manual
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SOK SK48V100 Owner's/Operator's Manual

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SK48V100 Owner & Operator's Manual

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Summary of Contents for SOK SK48V100

  • Page 1 SK48V100 Owner & Operator’s Manual...

  • Page 2: Table Of Contents

    Contents ................................1 About this Manual..........................5 Use of this Manual ........................... 5 Printing ............................... 5 Introduction ............................5 Manufacturer’s Background ......................5 Use Applications ..........................6 Advantages ............................6 Specifications ............................7 Listings & Certifications ........................... 8 UL 1973 (Battery) certification: ......................8 UL 9540 (ESS) certification: .........................
  • Page 3 Stacking ............................. 12 Installing in Racks ..........................13 Rack Stability ............................. 13 Powerup, Inverter Pre-Charge & Shutdown..................14 Inrush Current Risk ..........................14 How to limit inrush current ....................... 14 Built In Automatic Pre-Charge Circuit ....................14 Power-Up procedure (using automatic pre-charge) ................. 15 Power-Up procedure (manually pre-charging) .................
  • Page 4 Warning triangle on home screen: ....................28 Voltronic Inverter Communication (EG4/MPP Solar/Sungold Power) ..........28 Firmware: ............................28 Cables: ............................... 28 Voltronic / SK48v100 Pinout Table ....................28 Connection port & Procedure: ......................29 Battery Settings: ..........................29 MPP Solar Menu Settings: ......................... 31 Solar Assistant Integration ........................

  • Page 5: About This Manual

    We thank you for the continued use of SOK Battery NZ, LLC. as your resource, and we hope this Training Manual will better assist you in understanding your project and enable you to meet your goals.

  • Page 6: Use Applications

    The SOK Battery SK48V100 is engineered so that every single part within the battery pack can be field serviced and replaced by either an authorized service agent, or the end customer.

  • Page 7: Specifications

    Specifications Electrical Properties Model SK48v100 Nominal Voltage 51.2 (48v Range) Nominal Capacity 100Ah Run Time at 20A Load (~1000w) 300 Minutes Energy 5120Wh Self Discharge < 3% per month (BMS Off) ~2% per day (BMS On) Max Batteries in Series...

  • Page 8: Listings & Certifications

    This excludes non-listed packs from being used in a system that is code-compliant (permitted). Since the SK48v100 is listed to UL 1973 standards, it can be used in most jurisdictions. Recent regulation has started requiring UL9540 testing in addition to UL1973 testing, however adoption has been slow, so be sure to confirm with your local AHJ.

  • Page 9: Shipping & Receiving

    Due to the nature of these batteries, they must be shipped by truck freight both to the customer as well as any returns to SOK Battery NZ. Each unit is over 100lbs, which excludes typical ground methods such as FedEx / UPS.

  • Page 10: Packaging

    Please retain a set of this material should you need to pack and send your battery in the future e.g. for relocation or warranty claims. If the original packaging is not available, please contact your place of purchase or SOK Battery NZ to order a replacement set.

  • Page 11: Installation: Planning Your Location

    Extreme Cold Charging The SK48v100 battery is equipped with 6 temperature sensors – 4 of them measure the temperature of the cells, 1 measures the temperature of the high-power section of the BMS, and the final sensor is an environmental temperature sensor. These sensors are important for controlling the operation of the BMS, since charging in extreme cold is bad for the longevity of the cells.

  • Page 12: Heat

    Battery Orientation – Stationary In a stationary application, the SOK 48v battery can be installed in any orientation with the exception of upside down, as viewed from the front panel. This means installation on-end, sideways or even face down would be perfectly acceptable.

  • Page 13: Installing In Racks

    SOK Battery Racks SOK Battery currently offers a 5-slot open-frame rack. This 5-slot rack has its own documentation available: SOK 5 Slot Rack Assembly & Installation Manual 19″ EIA Server Racks When using a third-party EIA server rack for your batteries, you must use rails at minimum (full metal rack shelf is preferred) to support the full weight of the battery.

  • Page 14: Powerup, Inverter Pre-Charge & Shutdown

    Since very large capacitor banks and short circuits look identical, the automatic pre- charge circuit in the SK48v100 battery has a limitation in terms of howbig of an inverter can be pre-charged before the battery considers the system to have a short- circuit fault.

  • Page 15: Power-Up Procedure (Using Automatic Pre-Charge)

    4. Turn on (close) all DC breakers and switches in the battery system. This includes turning on the DC breaker located on the front panel of all the SK48v100 unit(s). 5. Briefly press the “RST” button of any battery. This will immediately engage the pre-charge circuit of that battery, which will charge any capacitors in the system.

  • Page 16: Manual Shutdown Procedure

    2, and the other side touching the negative terminal the cable would normally connect to 6. Turn on the DC breaker on the front of the the SK48v100 and wait for 15 seconds. 7. With the breaker still on, quickly remove the pre-charge resistor and make the final connection, torque to spec (15 ft·lbs).

  • Page 17: First Time Use Automatic Functions

    This is often accomplished by fully charging all batteries that will be used in a system before hooking them up. With the SK48v100, this is not required and a complete waste of your time. The BMS has an innovative, built-in charge limiting circuit.

  • Page 18: Bms Screen Display

    for concern. The only time to worry is if there is a large difference at a state of charge between 95% ~ 5%. BMS Screen Display Automatic Screen Timeout The screen will automatically turn off after 30 seconds of inactivity. Press the “Menu” button to re-activate the screen.

  • Page 19: Home / Welcome Screen

    Home / Welcome Screen The default screen shown when BMS is powered on. The only option on this screen is to press the “Menu” button to view the main menu. Main Menu Four menu options exist on the main menu: •...

  • Page 20: Para(Meter) Settings & System Settings

    Inverter Setpoints / Open Loop Communication The SK48v100 is compatible with select inverters in a closed-loop configuration where the battery programs the correct operating parameters to the inverter via CANBUS / RS485 communication. While this mode of operation is usually the most simple and precise control method, it is not a solution for everyone.

  • Page 21: Absorption Voltage

    For example, if you are running a generator and have ample charging capacity, you are better off running a higher charge current to get the batteries topped off as quickly as possible. Fast charging will reduce the runtime of the generator, leading to decreased wear &...

  • Page 22: Charging Soc

    user thinks that it’s been connected to a charger and should be full and ready to go. This is contrary to the float-charge of a lead acid battery, as a lead acid battery will self-discharge when sitting and must be continually be fed charge current to keep it topped off.

  • Page 23: Communication Ports

    This ramping allows the balancing circuit time to do its job without ever triggering a high-voltage shutdown situation. Properly charged and balanced cells will give the longest lifespan of a battery pack as a whole, hence why SOK chose to use a communicating BMS.

  • Page 24: Communication Between Packs

    Additionally, if a pack in a fully communicating system experiences an error such as an internal short circuit or system overload, it can shut down all packs in a system in order to prevent further damage, cascade failure or in extreme cases, a fire. Communication Between Packs Batteries can be linked together to allow for communication between packs.

  • Page 25: Victron Communication

    Cables that have been made ready to work out of the box are available form SOK Battery NZ. We highly recommend identifying these cables upon receipt by their label “Victron-CAN”, since they may look very similar to other...

  • Page 26: Firmware

    Firmware: For charging to work properly, changes by Victron were required to be implemented into the firmware used by the GX device. Without these changes, charging stopped when the batteries reached 52.4v, which correlates to around 30% full. The first firmware version to support these changes was version 3.0.0~15 which is a candidate release.

  • Page 27: Sol-Ark Communication

    Communication with the Sol-Ark Inverter is by far, the easiest to setup among all inverters. Communication works with all 4 current Sol-Ark models, the 5k, 8k, 12k and 15k. Communication is approved by Sol-Ark and SOK Battery is listed in their integration guide on page 28.

  • Page 28: Warning Triangle On Home Screen

    If you wish to use your own cable, do so with caution; the following pinout table creates a cable that is unidirectional, so only the end labeled “SK48v100” must be plugged into the battery, and the end labeled “Voltronic” must be plugged into the...

  • Page 29: Connection Port & Procedure

    We recommend keeping any AC and PV inputs to the Voltronic inverter OFF during this procedure. The communication cable plug marked “SK48V100” plugs into the “RS485A” port of the master battery. Verify the communication cables between master and slave batteries are properly connected, and that DIP switches of the master battery are set to address #1, as described in the previous section.
  • Page 30 4. If you have properly established the connection to the battery, the software should load the voltages and show statuses of the battery. In the top-right corner of the program there is a readout that shows the default protocol as “Pylon(DeYe) CAN”.

  • Page 31: Mpp Solar Menu Settings

    5. From the menu below the protocol indication, select the “Pylon 485” protocol. 6. Now, the indicator for protocol should read as “Pylon 485”. You can now close the software and disconnect the RS232 cable. MPP Solar Menu Settings: Disclaimer: The following menu options described were determined based on the MPP Solar LVX 6048, and LV 6548.

  • Page 32: Solar Assistant Integration

    Required Materials: • An SOK SK48v100 battery • A Raspberry Pi of any of the following models: Zero W, Zero 2W, 3A+, 3B, 3B+, 4B. We suggest the 3B+ (Amazon Link) due to the increased quantity of USB ports...

  • Page 33: Setting Up The Raspberry Pi

    2. Connect the battery to the Raspberry Pi programmed with Solar Assistant using the SOK USB 2.0 to RS 232 adapter, by plugging the USB end into any available port on the Pi and the other end into the RS232 port of the battery.

  • Page 34: Pc Monitoring & Diagnostics

    PC Monitoring Software (SOK Tools) Exporting Data Logs The SK48v100 Battery has a unique function – the ability to export data logs of up to 2 months of operational history. This is particularly useful for intermittent issues, as the logs can give insight to every measurable data point with a correlating data/time stamp.

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