Controller for a rotary parking brake in Construction

To avoid unnecessary operating an emergency stop, it is proposed in a control device for a rotary parking brake in heavy equipment that connected to the parking brake hybrid controller (10) for controlling the structure drive generates a command signal to release the brake. Likewise, an independent from the hybrid controller pump control (20) generates a command signal for releasing the brake, wherein the brake release signal is transmitted via an intermediate signal line (70) between the control devices, and only then is supplied to the brake (3) when the the hybrid controller (10) generated signal to release the brake on the intermediate signal line (70) from the pump controller (20) has been transmitted as the second control means.