Show faulty shows PS1 faulty

I plugged both power cables in both power supply. When I unplugged each power cable one by one, the SPARC T4-1 machine keep running. However, show faulty command shows below message. (I have also attached the picture of both power supply)

-> show faulty
Target                                    | Property                                         | Value
------------------------------------------+--------------------------------------------------+------------------------------------------------------------------------
/SP/faultmgmt/0                           | fru                                              | /SYS/PS1
/SP/faultmgmt/0/faults/0                  | class                                            | fault.chassis.power.fail
/SP/faultmgmt/0/faults/0                  | sunw-msg-id                                      | SPT-8000-MJ
/SP/faultmgmt/0/faults/0                  | component                                        | /SYS/PS1
/SP/faultmgmt/0/faults/0                  | uuid                                             | c2885a5d-06b7-6bfd-9072-d9a18e399636
/SP/faultmgmt/0/faults/0                  | timestamp                                        | 2019-10-29/04:47:03
/SP/faultmgmt/0/faults/0                  | fru_part_number                                  | 300-2235-03
/SP/faultmgmt/0/faults/0                  | fru_serial_number                                | B70104
/SP/faultmgmt/0/faults/0                  | fru_manufacturer                                 | Delta Electronics
/SP/faultmgmt/0/faults/0                  | system_manufacturer                              | Oracle Corporation
/SP/faultmgmt/0/faults/0                  | system_name                                      | SPARC T4-1
/SP/faultmgmt/0/faults/0                  | system_part_number                               | 31940932+4+1
/SP/faultmgmt/0/faults/0                  | system_serial_number                             | AK00118201
/SP/faultmgmt/0/faults/0                  | chassis_manufacturer                             | Oracle Corporation
/SP/faultmgmt/0/faults/0                  | chassis_name                                     | SPARC T4-1
/SP/faultmgmt/0/faults/0                  | chassis_part_number                              | 31940932+4+1
/SP/faultmgmt/0/faults/0                  | chassis_serial_number                            | AK00118201
/SP/faultmgmt/0/faults/0                  | system_component_manufacturer                    | Oracle Corporation
/SP/faultmgmt/0/faults/0                  | system_component_name                            | SPARC T4-1
/SP/faultmgmt/0/faults/0                  | system_component_part_number                     | 31940932+4+1
/SP/faultmgmt/0/faults/0                  | system_component_serial_number                   | AK00118201
/SP/faultmgmt/0/faults/0                  | detector                                         | /SYS/PS1/PWROK
/SP/faultmgmt/0/faults/0                  | diagnosis_engine                                 | fdd 1.0

Perfectly normal.
When you unplug the PS, a fault is generated.

You can clear the fault, after you plugged it back in and it shows everything is ok.

Regards
Peasant.

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