This is a diagram of the primary H-Series wiring.
There are a few ancillary boards in addition:
The control board is powered by a 5V power supply, which is independent from the main machine power supplies. This ensures that the emergency stop button will halt all machine movement, but will not shut down the machine controller.
The machine is powered by a 24V power supply. This voltage applies to all motor drives, heaters, fans and nozzle-cleaning solenoids.
The bed heater and spindles are powered by a 48V power supply.
The filament cabinet humidity-control heater and the power supplies themselves are powered by 120V AC.