If it can be changed at the device level, this would be contained in the relays zwave documentation, look for parameters.
I just looked, that function doesn’t appear to be changeable at the hardware level, that’s an issue with most cheep devices, either the documentation isn’t complete, or changing the devices default functions are not possible.
I’m a bit of an aeon fan, they make a dual switch, though it’s getting a bit difficult to find, I have several I use.
The issues with dual switched is that only one of the switches can use on, and off, the other one needs custom commands, which very few apps support.
Thanks Mike, for the suggestion, I also have a 1 switch Aeon and works very good and it does not have the issue at power on.
I’m pass the dual switch control, both relays work very good, I wrote a device handler and smartapp for them, but if I cannot solve the power loss configuration they will not work in the application that I need.