> ## Documentation Index
> Fetch the complete documentation index at: https://learning.kent.co.in/llms.txt
> Use this file to discover all available pages before exploring further.
# Kent M1 Settings Reference — Modes, Battery, Zero-Export
> Work modes, TOU slot structure, battery thresholds, zero-export stack settings, grid parameters, and the Advanced page contents for the Kent M1.
This page documents every field-relevant Kent M1 LCD setting and the Kent rules around it. It is the companion to the commissioning page — commissioning sets the sequence, this page explains what each setting actually does. These settings do not apply to the Kent G3; parameter names and units differ between platforms.
**For trained and authorised installers only.** Advanced pages are password-locked (partner-gated). Grid protection points may only be changed with utility consent.
## Work modes
Select the mode in **System Setting** on the LCD:
| Mode | Behaviour |
| -------------- | --------------------------------------------------------------------------------------------------------------------------------- |
| **Self Use** | PV powers loads first; surplus charges the battery; any remainder goes to the grid. Battery covers loads when PV is insufficient. |
| **Sell First** | Maximises PV feed-in to the grid. |
| **Back Up** | Battery held at a configured SOC reserve while the grid is present. Prioritises outage readiness. |
| **Custom** | Site-specific combination of the above behaviours. |
For lithium batteries, targets are entered in **SOC (%)**. For other battery types, targets are entered in **voltage (V)**.
## Time of Use (TOU)
TOU lets you schedule when the battery charges, discharges, or idles across the day:
* **6 time slots** must tile the full 24 hours with no gaps and no overlaps. Slot boundaries are linked — changing one slot's end time moves the next slot's start time.
* Each slot contains: Idle / Charge / Discharge selection, **Max Power in watts**, a target SOC (Li-ion) or target voltage (lead-acid), and day-of-week selection.
In Sell First mode, the battery may discharge to the grid inside a charge window if the SOC already exceeds the slot's set point. Plan TOU slots with this behaviour in mind on export-permitted sites.
## Battery settings
| Setting | What to configure |
| ----------------------- | -------------------------------------------------------------------- |
| Battery type | Select Li-ion or lead-acid |
| Capacity | Total bank capacity in kWh |
| Max charge current | Set to the bank's real ceiling when below the inverter maximum |
| Max discharge current | Set to the bank's real ceiling when below the inverter maximum |
| BMS protocol | Select Pylon-family for Kent Lithium Battery \[KNB-VAL-05] |
| Grid charge enable | **Disabled by default** — enable deliberately for outage-first sites |
| Max grid-charge current | Only relevant when grid charge is enabled |
| Shutdown SOC | Inverter stops AC output below this level |
| Warn SOC | Inverter raises an alarm below this level |
| Restart SOC | Inverter resumes AC output when battery recovers to this level |
| Activate Bat | Timed wake-up to prevent deep discharge on idle systems |
**Grid charging is disabled by default.** On backup-first Indian sites where the customer needs the battery ready for power cuts, you must enable grid charging deliberately and set the maximum grid-charge current. If you leave it at default, the battery may be empty at the first grid failure.
For lead-acid banks, additional settings appear: float voltage, constant-voltage level, equalization voltage, equalization interval and duration, temperature compensation (requires PT1000 sensor), and cable-impedance compensation.
## Zero-export stack
Configure this stack on export-limited sites. Work through the settings in order:
| Setting | What it does |
| --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Solar Sell** | Enables feed-in to the grid. **Leave OFF for zero-export intent.** |
| **Max sell power** | Caps feed-in power in watts when Solar Sell is on. Requires meter or CT. |
| **Sell offset** | Compensates for metering lag so the anti-backflow function never slightly over-sells. |
| **Grid Peak-shaving** | Caps grid draw at the set value; PV and battery supplement first; grid rises only if the load still exceeds the cap. Set to the site's sanctioned load limit. |
An anti-backflow breach raises fault **E105** on the LCD.
**Pending Kent validation — witness test is mandatory on every export-limited site.** \[KNB-VAL-07]
The exact zero-feed behaviour of "Max sell power = 0 W" is under bench confirmation. Until published here, every export-limited site gets the zero-export witness test before sign-off — see [Commissioning](/m1/commissioning).
## Grid settings
Grid settings expose the safety-code selection and grid protection thresholds.
* Confirm every safety-code selection with **"Setting" → "OK"** — the selection does not take effect without this confirmation step.
* The grid page exposes: connect and reconnect voltage/frequency windows and slopes, reconnection delay, power factor, 10-minute overvoltage threshold, and two-level OV/UV/OF/UF thresholds with detection times.
**Change grid protection thresholds only with explicit utility consent and only per the Kent parameter sheet.** \[KNB-VAL-01]
Unauthorised changes to protection settings are a regulatory and safety violation.
## Advanced page (partner-gated unlock)
The Advanced page contains settings that require the partner-gated password. The page includes:
* Parallel switch, number of parallel inverters, master/slave role
* Multi-inverter-one-pack option
* Feedback source selection
* **Meter CT orientation** and **CT Ratio**
* DRM enable
* NPE Relay Check and NPE voltage protection threshold
* GridSeamlessSwitch
* Insulation-protection enable
* Enclosure grounding test
* AFCI enable and clearance
If a setting you expect to find is not in this reference, check whether there is a **KNB-VAL block** on the relevant page — the setting is pending confirmation, not hidden.
## Common mistakes
* Grid charging left at default OFF on a backup-first site — battery is empty at the first power cut.
* TOU slots that do not tile the full 24 hours — the linked boundaries fight back and the schedule behaves unexpectedly.
* "Solar Sell ON, Max sell power 0 W" configured without running the zero-export witness test. \[KNB-VAL-07]
* Editing grid protection thresholds without utility consent or a Kent parameter sheet.
## When to escalate
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.
## Related pages
* [Kent M1 Commissioning](/m1/commissioning)
* [Kent M1 GEN Port](/m1/gen-port)
* [Mixed-Fleet Cheat Card](/mixed-fleet/cheat-card)