Providing standard forms transfer function coordinates the main regulation as a result of optimal synthesis can be obtained by the methods of parametric optimization. The objective is to select the parametric optimization of parameters of regulators and corrective connections that would ensure the extremum of some objective function for a given structure of the automatic control system. The objective function is chosen as the criterion of the quality of the dynamic characteristics of the original coordinates. As a rule, it is an integral criterion of the quadratic form. Synthesis of electromechanical systems using parametric optimization needs a weight information. If they choose, on the basis of conditions to ensure the transfer function according to some standard form (desired transition process) then you can use the expression for the synthesis of functional parameters of the real electromechanical system according to the method of parametric optimization. For the two most common forms of standard electromechanical systems: binomial and Butterworth, expressions were obtained for the calculation of the weighting values for the standard order polynomial from the first to the fourth inclusive.