Safety switched on machine power supply

A method for supplying power in an industrial automation environment, the method comprising:

• providing, via a first power output channel of a power supply device that receives regulated output power from a switched-mode power supply of the power supply device, power to first industrial automation equipment in the industrial automation environment, wherein the first power output channel is connected to a first protection circuit of the power supply device configured to prevent the power supply from delivering more than a first threshold amount of current to the first industrial automation equipment via the first power output channel;
• providing, via a second power output channel of the power supply device that receives regulated output power from the switched-mode power supply of the power supply device simultaneously with the first power output channel, power to second industrial automation equipment in the industrial automation environment, wherein the second power output channel is connected to a second protection circuit of the power supply device configured to prevent the power supply from delivering more than a second threshold amount of current to the second industrial automation equipment via the second power output channel;
• receiving, via a safety input interface of the power supply device, a safety input signal instructing the power supply device to shut off the power that is provided to the first industrial automation equipment;
• and
• causing the power supply device to shut off the power provided to the first industrial automation equipment via the first power output channel responsive to receiving the safety input signal via the safety input interface without causing the safe-off circuitry of the power supply device to shut off the power provided to the second industrial automation equipment via the second power output channel.

A power supply for use in an industrial automation environment, comprising:

• a safety input interface;
• a switched-mode power supply;
• safe-off circuitry connected to the switched-mode power supply;
• a first power output channel that is connected to the switched-mode power supply and is for providing power to first industrial automation equipment;
• a first protection circuit that is connected to the first power output channel and configured to prevent the power supply from delivering more than a first threshold amount of current to the first industrial automation equipment via the first power output channel;
• a second power output channel that is connected to the switched-mode power supply and is for providing power to second industrial automation equipment, wherein the switched-mode power supply is configured to simultaneously supply regulated output power to the first power output channel and the second power output channel;
• a second protection circuit that is connected to the second power output channel and configured to prevent the power supply from delivering more than a second threshold amount of current to the second industrial automation equipment via the second power output channel;
• and
• a processor configured to:
• receive a safety input signal via the safety input interface, the safety input signal instructing the power supply to shut off the power that is provided to the first industrial automation equipment;
• and
• responsive to receipt of the safety input signal, cause the safe-off circuitry to shut off the power that is provided to the first industrial automation equipment via the first power output channel without causing the safe-off circuitry to shut off the power that is provided to the second industrial automation equipment via the second power output channel.