Overview
If a Hybird installation includes the optional UPS unit, the Edge Controller will continue to operate on battery for approximately four hours after the mains supply is removed or interrupted. This article explains what to expect from the controller, the platform, and the panel during a power event, and how to interpret behaviour you might see immediately after power is restored.
What the UPS does
The Hybird UPS is a 3.7V / 20Ah Li-Polymer battery unit connected to the Edge Controller via an IDC cable. When mains power to the controller is lost, the UPS takes over and continues to supply the controller for approximately four hours. The breakers themselves are not powered by the UPS · they remain powered by the panel mains, so when the mains is out, the breakers are out. The UPS keeps the controller alive so that platform connectivity, alerts, and any data buffered for transmission are preserved across short power events.
What you will see during a power event
Mains lost to the panel: the breakers de-energise. Loads they supply go off. The controller remains powered by the UPS and continues to communicate with the platform.
Controller view during the outage: all breakers will appear offline or in an unpowered state to the platform, because they have no power to respond to Modbus polls. This is normal.
Mains restored: breakers re-energise and resume responding to controller polls. Devices should return to reporting within a short time.
If the outage exceeds approximately four hours: the UPS battery is depleted and the controller itself goes offline. In this case the platform will register the controller as offline, not just the breakers.
Power-cycling the controller
If for any reason you need to power-cycle the controller, the UPS makes this awkward · simply removing mains power will not turn the controller off, because the UPS continues to supply it for around four hours. The fastest practical methods are:
Use the controller's reboot button: hold the top button for two seconds. This is the cleanest reboot path.
Disconnect the IDC ribbon cable between the controller and the UPS, then remove mains. This fully de-powers the controller, but requires opening the panel and should only be done if the reboot button does not resolve the issue.
Common observations after a power event
Delayed reporting on restoration. Devices may take a short time to come back online after power is restored. If a device is still missing several minutes after the rest of the bus has returned, treat it as a separate fault and follow the Single breaker not reporting · troubleshooting guide path.
Alerts triggered by the outage itself. If alerts are configured (email or SMS), the controller will continue to report the outage and may emit alerts that arrive while the panel itself is dark. This is normal · the controller is doing its job.
Data gaps in dashboards. A gap in the data for the duration of the outage is expected · the breakers are unpowered, so there is nothing for the controller to record. [VERIFY: confirm whether the controller buffers downstream data during a power event, or whether the gap is simply unavoidable because the breakers themselves had no power to report]
When to escalate
If devices do not return to reporting within a reasonable time after mains is restored, or if the controller does not come back online after a long outage even when mains is restored, contact Hybird support at [email protected] or +45 3020 4900. In rare cases the UPS itself may be faulty or the controller may have failed to recover from the power event.
Summary
The Hybird UPS protects the controller across power events of up to about four hours, keeping platform connectivity and alerting alive while the panel itself is out. The breakers are not on the UPS · they follow mains. After power is restored, normal operation should resume automatically; persistent issues should be diagnosed using the standard troubleshooting articles.