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FranklinWH•aGate

Analysis by Marcus & Team

FranklinWH aGate Bus Overvoltage Reset Procedure

Troubleshoot and reset a FranklinWH aGate after a Bus Overvoltage fault. Focus on safe software procedures and system monitoring.

Frequently Asked Questions

•What is the normal DC bus voltage range for the FranklinWH aGate?

Consult the FranklinWH aGate specifications sheet for the specific DC bus voltage range. It's crucial to stay within this range for optimal system performance and longevity.

•How often should I check for firmware updates on my FranklinWH aGate?

It's recommended to check for firmware updates monthly or whenever a notification appears in the FranklinWH monitoring app. Timely updates ensure optimal performance and security.

•What should I do if I can't connect to the FranklinWH cloud server?

First, verify your internet connection. If the connection is stable, check the FranklinWH server status on their website or contact their support team. A temporary server outage may be the cause.

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Marcus leads the technical research department at Storage Faults. Together with a team of systems analysts, he specializes in translating complex solar storage error codes into actionable diagnostic steps for the US market.

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Important Warnings:

Modifying system parameters without proper knowledge can damage the equipment and void the warranty. Ensure you understand the implications of any changes made in the app. Always use strong, unique passwords for your FranklinWH account and Wi-Fi network to protect against unauthorized access and potential manipulation of the system. Secure your home Wi-Fi.

Recommended Action:

1

Access the FranklinWH monitoring app using your credentials.
2

Verify the aGate's firmware version is up-to-date. If not, initiate an Over-The-Air (OTA) firmware update.
3

Check the AC grid voltage parameters within the app's settings. Ensure they are within the permissible range for your region.
4

Review the battery charging parameters in the app. Confirm the maximum charge voltage and current limits are appropriately configured.
5

Perform a soft reset of the aGate via the app's settings menu. Allow the system to reboot.
6

Monitor the system voltage readings in the app after the reset. Verify they are within the normal operating range.
7

Check the cloud connectivity status. Ensure the aGate is successfully communicating with the FranklinWH cloud servers.

Technical Background:

The DC bus voltage within the aGate is continuously monitored by the internal Battery Management System (BMS) and Energy Management System (EMS). The EMS processes voltage sensor data, comparing it to predefined limits. If the voltage exceeds the upper limit, the overvoltage protection is triggered. This can be caused by regenerative braking during battery charging, grid disturbances, or component failure affecting voltage regulation. The aGate communicates status via Modbus TCP to local monitoring devices and via secure TLS to the cloud.

Technical Recommendation:

If the 'Bus Overvoltage' error persists after a soft reset, attempt a factory reset via the app (if available) or by contacting FranklinWH support. Document the error code and system parameters before initiating the reset.

Common Causes:

Firmware glitch causing false overvoltage detection.
Grid voltage fluctuations exceeding the aGate's input voltage tolerance.
Overcharging from PV array due to misconfiguration of charge limits in the app.
Communication errors between the BMS and EMS leading to inaccurate voltage readings.
Cloud connectivity issues preventing proper system synchronization and control.
Incompatible app version causing incorrect parameter settings.

What to Look For:

The FranklinWH aGate displays a 'Bus Overvoltage' error in the monitoring app and/or on the device's display. The system may shut down to protect components from excessive voltage. Communication with the cloud may be interrupted.

Preventative Care:

Regularly check for and install firmware updates for the aGate through the monitoring app.
Periodically review the system's voltage and current parameters in the app to ensure they are within the specified limits.
Ensure a stable and reliable internet connection for consistent cloud communication.
Monitor system performance logs within the app for any recurring voltage anomalies.