Considerations for electrical noise and leakage current

Electrical noise generated by other equipment may cause a fault. The following points should be observed in the Power Supply facility plan to reduce electrical noise:

• Do not connect equipment that is repeatedly turned on and off by relays, microswitches, etc. to the power branch circuit for this equipment.

• The PSUs should be connected directly to the grounding plate or a dedicated ground for the chassis.

• Include noise prevention circuits in equipment that generates electrical noise.

• Data and power and cables should be separated as much as possible.

• Each PSU includes a noise filter to prevent disturbances caused by electrical noise. This results in a leakage current of up to 3.5 mA that flows through the grounding) wire. Take this into consideration if the installation of a ground-fault circuit breaker is required.