def remove_max_dipole_sep(self, maxsep=10):
        """Remove configurations with dipole separations higher than `maxsep`.

        Parameters
        ----------
        maxsep : int
            Maximum separation between both dipoles (the default is 10).
        """
        sep = np.abs(self.configs[:, 1] - self.configs[:, 2])
        self.configs = self.configs[sep <= maxsep]