The mechanical life of the module is 20 million times or longer.
The relay life (contact switching life) of the module varies depending on the usage environment of the module.
The RY10R2 has a function that cumulatively counts the number of ON times of each output.
With the function, make preventive maintenance based on the relay life.
The relay life varies depending on the usage environment of the module.
When using the module, consider the use environment of the module.
The following relay life curve shows actual values, not guaranteed values.
Because an actual contact switching life may become shorter than the relay life curve, replace the module with a sufficient margin for the life.
More information found HERE.