Primary control and interconnect PCB for a laboratory centrifuge. Features include:
-DC power regulation and distribution for the entire device.
-Interfaces for two COTS motor controllers.
-SSR drive for small solenoid actuators.
-Harnessed connections for various optical and magnetic switches.
-STM32F103 which performs signal processing of an offboard accelerometer as an imbalance detection mechanism.
-Reinforced insulation barrier isolates signals from high voltage motor to meet safety requirements.
-Fully redundant hardware safety interlock circuit prevents the user from coming into contact with the spinning rotor in order to fulfill machine safety requirements for CE certification.
-Analog tachometers which tie into the safety interlock to determine if the rotor is spinning as well as provide a hardware overspeed cutoff.