{"id":43106,"date":"2026-09-08T12:00:40","date_gmt":"2026-09-08T10:00:40","guid":{"rendered":"https:\/\/fvcomponentes.com\/?p=43106"},"modified":"2026-09-08T12:00:40","modified_gmt":"2026-09-08T10:00:40","slug":"configure-victron-zyc-simpo-5000-battery","status":"publish","type":"post","link":"https:\/\/fvcomponentes.com\/en\/configurar-victron-bateria-zyc-simpo-5000\/","title":{"rendered":"How to set up a Victron with ZYC SIMPO 5000 batteries (with and without communication)"},"content":{"rendered":"

The ZYC SIMPO 5000 batteries<\/a> They work with Victron in two ways: with CAN communication<\/strong>, which is the recommended option, or no communication<\/strong>, by manually setting the voltages on the inverter. This guide covers both methods, using the manufacturer\u2019s official values.<\/p>\n\n\n

Option A \u2014 with CAN communication (recommended)<\/h2>\n\n\n

With CAN, the battery\u2019s BMS is in charge: it tells the Victron how much current it can handle, what voltage to charge to, and when to stop. This is the setting that prevents any nasty surprises and allows you to see the actual state of charge on the GX and the VRM.<\/p>\n\n\n

The cable<\/h3>\n\n\n

ZYC recommends the cable VE.Can to CAN bus BMS type A<\/strong> from Victron. If you\u2019re going to connect the cable yourself, here is the pin mapping between the INV port on the master battery and the Victron:<\/p>\n\n\n

Sign<\/strong><\/td>Pin on the battery (INV)<\/strong><\/td>Pin on Victron<\/strong><\/td><\/tr>
CAN_H<\/td>4<\/td>7<\/td><\/tr>
CAN_L<\/td>5<\/td>8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n

The battery\u2019s INV port uses the following pin configuration: pins 4 and 5 for CAN_H and CAN_L, and pins 7 and 8 for RS485B and RS485A. The remaining pins are reserved.<\/p>\n\n\n

\n\nCAN pin mapping<\/text>\nPuerto INV \u00b7 ZYC battery<\/text>1<\/text>2<\/text>3<\/text>4<\/text>5<\/text>6<\/text>7<\/text>8<\/text>\nVictron (VE.Can)<\/text>1<\/text>2<\/text>3<\/text>4<\/text>5<\/text>6<\/text>7<\/text>8<\/text>\n\n\nCAN_H \u00b7 pin 4 to pin 7<\/text>\nCAN_L \u00b7 pin 5 to pin 8<\/text>\n<\/svg><\/figure>\n\n\n

Connection sequence<\/h3>\n\n\n
  1. Connect the communication cable between the master drum kit<\/strong> and the VE.Can port on the GX device or the inverter.<\/li>
  2. Check that the finishing resistance<\/strong> It is plugged into the OUT port of the last module. This applies to both a single battery and a parallel-connected bank.<\/li>
  3. Switch on the DC switch between the battery and the inverter, if fitted.<\/li>
  4. Turn on all the circuit breakers in the modules.<\/li>
  5. Press the ON\/OFF button on the master battery for 1 second.<\/li>
  6. Switch on the inverter.<\/li><\/ol>\n\n\n

    The LED RUN<\/strong> A steady light indicates that the battery is operating in communication mode with the inverter.<\/p>\n\n\n

    \n\nCommunication chain<\/text>\n\nInverter \/ GX<\/text>\nTEACHER<\/text>IN<\/text>OUT<\/text>Module 2<\/text>IN<\/text>OUT<\/text>Module 3<\/text>IN<\/text>OUT<\/text>\n\n120\u03a9<\/text>\nresistance<\/text>\nfinisher<\/text>\nThe cable runs from the OUT of one module to the IN of the next. The terminator is always connected to the OUT of the last module.<\/text>Shielded Cat5 cable or higher, up to 5 m.<\/text>\n<\/svg><\/figure>\n\n\n

    Option B \u2014 no communication<\/h2>\n\n\n

    If, for whatever reason, you\u2019re not going to wire up the communication (an old Victron, a standalone MPPT, a separate charger), the SIMPO 5000 works just the same, but You have to set the voltages<\/strong>. These are the official ZYC values for Victron chargers:<\/p>\n\n\n

    Parameter<\/strong><\/td>Value<\/strong><\/td><\/tr>
    Absorption voltage<\/td>54.4 V<\/td><\/tr>
    Floating voltage<\/td>54.0 V<\/td><\/tr>
    Maximum load voltage<\/td>55.5 V<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n

    With these settings, the charger operates within the BMS\u2019s operating window. If you set higher voltages, the BMS will cut off due to cell overvoltage (protection at 3.75 V per cell) and the system will shut down.<\/p>\n\n\n

    How to enable offline mode<\/h3>\n\n\n

    The battery starts up always in communication mode<\/strong> by default. To switch to offline mode, with the battery switched on, do the following: double-click the ON\/OFF button<\/strong>: the SOC indicators will flash twice to confirm the change.<\/p>\n\n\n

    The BMS remembers the mode, so there is no need to repeat this at every start-up. And as soon as it detects that the communication cable to the inverter is connected, it will automatically return to communication mode. In this mode, the RUN LED flashes slowly (on for 1.5 seconds, off for 1.5 seconds).<\/p>\n\n\n

    How many batteries does your Victron need?<\/h2>\n\n\n

    Before configuring anything, make sure that the battery bank has sufficient capacity to meet the current draw of the inverter. A MultiPlus-II 48\/5000 in an off-grid installation requires at least 2 modules<\/strong>; a Quattro 48\/15000 isolated three-phase unit, 12<\/strong>. You can find the full table at How many ZYC SIMPO 5000 batteries do I need, depending on my inverter?<\/a>.<\/p>\n\n\n

    Monitoring and firmware updates<\/h2>\n\n\n

    With the SIMPO WiFi module<\/a> You can check the status of the battery bank remotely via the ZYC Portal or the ZYC Assist app, and update the firmware. The dongle connects to the IN port on the master battery and links to the router via an Ethernet cable or Wi-Fi.<\/p>\n\n\n

    If you\u2019re using a Victron GX, the battery\u2019s firmware can also be updated from VRM<\/strong>: Download the file from the ZYC portal, upload it via the \u201cZYC battery\u201d device entry in the device list, and the system will take care of the rest.<\/p>\n\n\n

    Remote firmware update via VRM<\/h2>\n\n\n

    This is the feature that has caught our attention the most and is the least talked about. The SIMPO 5000\u2019s firmware It can be updated remotely via the Victron VRM portal<\/strong>: Download the file from the ZYC Portal, go to the system\u2019s device list, search for \u201cZYC battery\u201d, upload the file, and the system will take care of the rest.<\/p>\n\n\n

    For those who maintain third-party installations, this changes the economics of after-sales service: a firmware update no longer requires a call-out. And in remote mountain locations, that call-out takes half a day and a tank of diesel.<\/p>\n\n\n

    No communication hub for the parallel port<\/h2>\n\n\n

    The modules automatically assign master and slave roles amongst themselves. There is no need for an external management device, additional cabling or extra costs: they are connected in a daisy chain and the system organises itself. This is one of the reasons why the bank is up and running in minutes, without a laptop or an app.<\/p>\n\n\n

    \"Inside
    Pre-wired cabinet: DC busbar, fuse holders and communication cabling fitted at the factory.<\/figcaption><\/figure>\n\n\n

    Cabinet designed for the Victron RS19<\/h2>\n\n\n

    ZYC manufactures a cabinet designed to integrate the Victron RS19<\/strong> and the GX monitor in the same cabinet, with the DC busbar, fuse holder and wiring factory-fitted. It covers 6 to 18 kVA and 10 to 46 kWh of battery capacity. If you regularly install Victron equipment, do ask us about this configuration.<\/p>\n\n\n

    Coming out of the cupboards<\/h2>\n\n\n

    The 6-door cupboards<\/a> y 10 units<\/a> they have a DC busbar sized for 600 A and 1,000 A<\/strong> output, respectively, with an integrated fuse box. This avoids the need to fit a separate distribution board until several cabinets are required.<\/p>\n\n\n

    Common mistakes<\/h2>\n\n\n