# 3-phase Multi RS Solar stuck in passthrough **URL:** \ **Category:** DIY\ **Tags:** 3-phase, cerbo\_gx, multi\_rs, diy\ **Created:** [6 August 2025 11:21 UTC](https://community.victronenergy.com/t/3-phase-multi-rs-solar-stuck-in-passthrough/42156 "2025-08-06T11:21:51Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![rhernaus](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/rhernaus/32/33202_2.png) [@rhernaus](https://community.victronenergy.com/u/rhernaus)\ **Post date:** [6 August 2025 11:21 UTC](https://community.victronenergy.com/t/3-phase-multi-rs-solar-stuck-in-passthrough/42156/1 "2025-08-06T11:21:51Z")
I have a Victron system with; - 3x Multi RS Solar configured as three phase - VM-3P75CT energy meter connection via VE.Can - Cerbo GX Mk2 - 5x Pylontech US5000 Firmwares: ![Screenshot 2025-08-06 at 13.17.30](https://europe1.discourse-cdn.com/victron/original/3X/8/b/8ba2fe54ca0f721206c1c0e93518c315b68f3f5e.png) The VM-3P75CT, Multi RS’s and Cerbo GX Mk2 are daisy chained on VE.Can with terminators on both ends. In the Cerbo all devices show up on VE.Can Port 1. ![Screenshot 2025-08-06 at 13.10.18](https://europe1.discourse-cdn.com/victron/original/3X/f/c/fcd716cb987d529cec8b4f9ab8e259cae6335641.png) ![Screenshot 2025-08-06 at 13.10.40](https://europe1.discourse-cdn.com/victron/original/3X/e/8/e8adc9a633347f726d709e12ea128ffb022a4545.png) The Pylontech is connected to the Cerbo GX VE.Can Port 2 ![Screenshot 2025-08-06 at 13.10.53](https://europe1.discourse-cdn.com/victron/original/3X/4/0/4036ad4f1a19751c2697bf4ca4c6388b7f4a23e9.png) ![Screenshot 2025-08-06 at 13.12.12](https://europe1.discourse-cdn.com/victron/original/3X/f/1/f1dd1e048dcdf70dc23e1fe218e5127ddd377d04.png) The Multi RS’s are all configured the same like this. But they all have their own phase assigned. ![Screenshot 2025-08-06 at 13.13.24](https://europe1.discourse-cdn.com/victron/original/3X/e/2/e25f600fbef4ff9b75e9b1606917e77119f9b000.png) ![Screenshot 2025-08-06 at 13.13.16](https://europe1.discourse-cdn.com/victron/original/3X/3/b/3bc24c4d46ad9a7f208cdd2c3a28ddb9e9898851.png) ![Screenshot 2025-08-06 at 13.13.06](https://europe1.discourse-cdn.com/victron/original/3X/3/c/3c2384c6932f76f920524bf14e7612a7eea404b2.png) The Multi RS’s connect to the grid succesfully and the ACIN1 relay closes. My loads connected to AC-OUT-1 are powered. I have a SolarEdge SE16k connected to AC-OUT-1 too. ![Screenshot 2025-08-06 at 13.15.26](https://europe1.discourse-cdn.com/victron/original/3X/f/f/ff383e65c2c0b31dcf76e09a81450a4dd943c1b4.png) But for some reason the Inverters stay in Passthrough state. I can only see that on the physical displays. ![Screenshot 2025-08-06 at 13.21.26](https://europe1.discourse-cdn.com/victron/original/3X/f/5/f5e072769beb2f7c51dff546197b77aed9df2bb6.jpeg) ![Screenshot 2025-08-06 at 13.21.18](https://europe1.discourse-cdn.com/victron/original/3X/9/1/914758825fe2a8b439f3af506cb7e14c87ef9726.jpeg) ![Screenshot 2025-08-06 at 13.21.10](https://europe1.discourse-cdn.com/victron/original/3X/1/4/14bf6e3d2cea43f2d1544ac39c7d990e2eabec84.jpeg) As far as i can tell i have followed the documentation correctly. Can somebody help me troubleshoot this issue? Thanks! ---
**Author:** ![rhernaus](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/rhernaus/32/33202_2.png) [@rhernaus](https://community.victronenergy.com/u/rhernaus)\ **Post date:** [6 August 2025 12:42 UTC](https://community.victronenergy.com/t/3-phase-multi-rs-solar-stuck-in-passthrough/42156/2 "2025-08-06T12:42:29Z")
In case it helps somebody else. When i set Minimum number of inverters to start to less than 3 the system started working. ![Screenshot 2025-08-06 at 14.41.38](https://europe1.discourse-cdn.com/victron/original/3X/b/c/bcbbe4ae9f3fe61a2a4e7eb9175b4b7a078dcbe6.png) ---
**Author:** ![alexpescaru](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/alexpescaru/32/270_2.png) [@alexpescaru](https://community.victronenergy.com/u/alexpescaru)\ **Post date:** [6 August 2025 19:34 UTC](https://community.victronenergy.com/t/3-phase-multi-rs-solar-stuck-in-passthrough/42156/4 "2025-08-06T19:34:54Z")
> [@rhernaus](#): > > When i set Minimum number of inverters to start to less than 3 the system started working. I wonder which is the logic in this… 🤨 If one has a 3 phase system and want it to work **only and only** when all 3 inverters are online simultaneously, how do you set it? LE: Now I see that the texting is a little bit confusing… **Minimum inverters to start** is referring to number of inverters that must be active per phase. But… Hmm… Multi RS cannot be parallelized… ---
**Author:** ![Jelle](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/jelle/32/33287_2.png) [@Jelle](https://community.victronenergy.com/u/Jelle)\ **Post date:** [27 August 2025 06:57 UTC](https://community.victronenergy.com/t/3-phase-multi-rs-solar-stuck-in-passthrough/42156/5 "2025-08-27T06:57:07Z")
I also walked into this trap, I got stuck for days. Thanks to this post I am finally in business ---
**Author:** ![system](https://europe1.discourse-cdn.com/victron/original/1X/21a9a7b5db7c6339715f993568736a7053199995.png) [@system](https://community.victronenergy.com/u/system)\ **Post date:** [10 September 2025 06:57 UTC](https://community.victronenergy.com/t/3-phase-multi-rs-solar-stuck-in-passthrough/42156/6 "2025-09-10T06:57:10Z")
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