The control upgrade for an HF800 consists of a new control and wiring cabinet, a new HMI operator cabinet and the replacement of the safety-relevant STAHL HMI 350x230 sensors of the centrifuge.
It goes without saying that the safety of the centrifuge will be reassessed in accordance with IEC 61508 and an EC declaration of conformity issued so that nothing stands in the way of safe operation for years to come.
The safety technology is implemented with a fail-safe PLC control system from SIEMENS. The power section was equipped with a REVCON regenerative unit. This unit offers the customer considerable cost savings through efficient utilization of the electrical drive energy. In contrast to systems with braking resistors, the energy is not converted into waste heat when the centrifuge brakes, but is fed back into the supply network by the regenerative unit.
