EL – Owner’s Manual – Rev.00 – September 2021 31
Anti-Freezing Routine
The anti-freezing routine is an automatic routine which will check the temperature on the internal
electrolyte tank to prevent the electrolyte from freezing. If the temperature is below 10 °C the heater
and circulation pump will be turned on. This routine also checks the flow of the circulation pump and
verifies that there are no obstructions in the inner piping system.
Safety Heartbeat
The Safety Heartbeat functionality is a periodic signal transmitted between the device and the
gateway to detect if the device is still connected to the cloud. If the device does not receive the signal
anymore, it will undergo a normal ramp down. This allows the operator to always access the cloud
data if the device is running. This feature is optional and can be switched off as well. Find further
information on Safety Heartbeat in the handbook.
To activate Safety Heartbeat via Gateway:
1. Connect the device to the Gateway
2. Configure Safety Heartbeat on the Gateway
To activate Safety Heartbeat via Modbus, follow the heartbeat instructions for Modbus.
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