Common Faults And Troubleshooting Measures; Troubleshooting The Pdf (Ats Input) - Huawei FusionModule1000A20 Maintenance Manual

FusionModule1000A20 Prefabricated All-in-One
Data Center
Maintenance Guide
5
Common Faults and Troubleshooting
This chapter describes how to troubleshoot purchased components, including the
power distribution frame (PDF), fresh air integrated unit, and intelligent heat
exchanger. For details about how to troubleshoot Huawei-developed components,
see the corresponding user manuals.

5.1 Troubleshooting the PDF (ATS Input)

Table 5-1 Troubleshooting the PDF (ATS input)
Symptom Alarm
The Communicat
indicator on ion Failed
the external
door of the
ATS PDF is
off.
Issue 03 (2022-12-15)
Possible
Cause
The active
and standby
inputs of the
ATS are
unavailable.
Copyright © Huawei Digital Power Technologies Co., Ltd.

5 Common Faults and Troubleshooting Measures

Solution
1. Ask the customer to set the ATS switch to the O
position and disconnect the power supply to the
PDF.
2. Check whether the two mains power supplies are
normal. If they are abnormal, ask the customer to
rectify the mains fault. If they are normal, locate
the fault inside the PDF.
Measures
58