Vertiv R48-2000C, Инструкция по установке и эксплуатации

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Vertiv | NetSure R48-2000C Outdoor Rectifier Installation & User Manual (UM1R482000C) | Rev. A 36
TROUBLESHOOTING AND REPAIR
Troubleshooting
Rectifier Current Sharing Imbalance
When multiple rectifiers are operating in parallel and the load is greater than 20 %, if the current
sharing imbalance among them is greater than 3 %, replace the rectifier exhibiting the current
imbalance.
Rectifier Fault Symptoms and Troubleshooting
The fault indicators that can be displayed by the rectifier are as follows. Refer to Table 8 for a list of
possible causes and corrective actions.
•
Power Indicator (Green) Off
•
Protection Indicator (Yellow) ON
•
Alarm Indicator (Red) ON
Repair
When a trouble symptom is localized to a faulty rectifier, the rectifier should be replaced in its
entirety. No attempt should be made to troubleshoot or repair individual components inside the
rectifier enclosure.
Table 8: Rectifier Troubleshooting
SYMPTOM POSSIBLE CAUSE(S) SUGGESTED ACTION(S)
Power Indicator
(Green) Off
No input voltage. Make sure there is input voltage.
Internal input fuse open. Replace the rectifier.
Protection Indicator
(Yellow) On
AC input under/over
voltage. Correct the AC input voltage to within the
acceptable range.
PFC under/over voltage. Replace the rectifier.
Moderate load sharing
imbalance.
Replace the rectifier.
Rectifier over-
temperature protection. Ambient temperature too high.
Alarm Indicator
(Red) On
Severe load sharing
imbalance.
Rectifier output disabled
for any reason, including
overvoltage shutdown
and internal output fuse
open.
Remove then re-apply AC input power to the
rectifier. If rectifier fails to start or shuts down
again; replace the rectifier.