class mpf.devices.power_supply_unit.PowerSupplyUnit(machine, name)

Bases: mpf.core.system_wide_device.SystemWideDevice

Represents a power supply in a pinball machine.

Accessing psus in code

The device collection which contains the psus in your machine is available via self.machine.psus. For example, to access one called “foo”, you would use You can also access psus in dictionary form, e.g. self.machine.psus['foo'].

You can also get devices by tag or hardware number. See the DeviceCollection documentation for details.

Methods & Attributes

Psus have the following methods & attributes available. Note that methods & attributes inherited from base classes are not included here.

get_wait_time_for_pulse(pulse_ms, max_wait_ms) → int

Return a wait time for a pulse or 0.


Notify PSU about pulse.

raise_config_error(msg, error_no, *, context=None)

Raise a ConfigFileError exception.