The invention relates to a drive system (1) comprising a frequency converter (2), at least one drive unit (3), and a power supply (4), wherein the drive unit (3) has an electric motor (M) and at least one further component (36) consisting of at least one sensor element, actuator element and/or data storage element, and wherein the frequency converter (2) supplies the further component (36) of the drive unit (3) with energy via at least the one power supply (4), wherein the frequency converter (2) is designed to obtain a first piece of information (41) about the maximum available electrical energy of the power supply (4), wherein the frequency converter (2) is designed to obtain a second piece of information (31) about the electrical energy requirement of the further component of the drive unit (3), wherein the frequency converter (2) is designed to check the plausibility of the first piece of information (41) with respect to the second piece of information (31), wherein the decision-making criterion for the plausibility check is formed by a logical comparison of the first piece of information (41) with the second piece of information (31), and wherein the frequency converter (2) is designed to adapt the system state of the drive system (1) in accordance with the result of this plausibility check.
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