Check first
- Which link has failed? Battery (SOC / BMS), meter (grid data), or parallel bus — the alarm string names it. Fix one link at a time and re-test before moving to the next.
- Kent battery link down? Crossover cable first. A straight RJ45 patch cable between the Kent battery and the inverter is a guaranteed comm failure. Verify the labelled Kent F1 crossover cable is in place before any settings work.
- Connectors fully seated at both ends, in the correct port? Click the RJ45s home at both ends and confirm you are in the port the platform page names — before deeper diagnosis.
Causes
| Link | How it shows | Fix |
|---|---|---|
| Battery — cable fault | Kent G3: CAN Fail · Kent M1: E400–E402; SOC missing or 0% | Cable Checks: verify the label, check continuity against the pin card, reseat both ends; re-terminate if needed |
| Battery — wrong selection | Kent G3: BatName-FAIL · wrong model name on display | Select the Pylon-family entry per the platform commissioning page — only after the cable is proven |
| Battery — pack absent or asleep | Kent G3: No-Battery; pack LED dark | Check breaker and switch states; wake per Battery Not Charging; note that the “No Battery” menu option exists only to suppress the alarm when a battery is genuinely not installed — it does not fix a comm fault |
| Meter — RS485 link | Kent G3: MET-SLT-Fail / meter-fault class; grid data frozen | Check A/B polarity per the platform pin map, meter type selection, and that the meter has a live supply — follow Meter & Phase Matching |
| Parallel bus | Kent M1: E606 (parallel machine abnormal) · shared power erratic between units | Parallel cabling, DIP switch positions, and unit addresses per the platform page — DIP schemes differ between M1 and G3, see the Mixed-Fleet Cheat Card |
| Multi-pack bank internal | One pack’s data missing; aggregated SOC figures look wrong | Check pack addresses against the address map on the commissioning sheet; the master pack carries the full bank data |
Datalogger stick “offline” is not a display comm fault. The datalogger is fitted physically per the installation pages and is activated with Kent Central Command — documentation to follow. Nothing in commissioning or troubleshooting depends on datalogger connectivity.
After restoring a battery comm link, close out with the full-charge SOC verification from SOC Mismatch. Drift accumulated while the BMS link was down does not self-correct.
Escalate when
- BMS stays silent after the cable is verified against the pin card and the battery selection is confirmed correct — this is a battery-level case for Kent service.
- A meter is confirmed dead with wiring, type selection, and supply all verified — replacement case.
- Parallel sync fails on a verified cabling, DIP, and address setup.
Escalate to Kent New Energy service only — through your registered Kent partner channel or the Kent service desk details on your work order. Do not contact any third-party or component-manufacturer support line for a Kent-branded system: tickets outside the Kent channel are not tracked, not covered, and can void warranty handling.