A power and safety control hub, integrating fault tolerant power
disconnect control, software monitoring of disconnect and multi-voltage
power distribution and disconnect with non-hazardous power control, EMI
filtering and multi-circuit current protection in a single unit,
coordinating shutdown of connected mechanical drives, commanding them to
come to a controlled stop before safety power is disconnected. The hub
may also integrates segmented hazardous power control and automatically
discharge energy sources within connected mechanical drives at the time
of safety power disconnect of hazardous power. The hub may also include
internal self-protection that automatically forces a control safety power
disconnect (after warning the host) if the unit should approach its
maximum operating temperature, or if a cooling fan stops.