EverExceed Smart IT Cabin
Solution User Manual
5.3 UPS Power Distribution System Maintenance
Checking UPS status:
Clean the UPS periodically, especially the ventilation holes, to ensure free
airflow inside the UPS. If necessary, clean the UPS with a vacuum cleaner.
Confirm that the ventilation holes are unobstructed. It is recommended to
check the UPS operation status once every half a year.
Check the following items:
1) Check whether the UPS is faulty: Is the FAULT indicator on? Is the UPS
giving any alarm?
2) Check whether the UPS is operating in Bypass mode. Normally, the
UPS operates in Normal mode; if it operates in Bypass mode, find out
the reason, such as operator intervention, overload, internal fault, and so
on.
3) Check whether the battery is discharging: When mains is normal, the
battery should not discharge; if the UPS operates in Battery mode, find
out the reason, such as mains failure, battery test, operator intervention,
and so on.
Note:
Refer to PL2 RM series UPS User Manual for the detailed maintenance
operation and replacing instructions
5.4 Troubleshooting
Judge possible causes for the fault through the run data and alarm information
in the MSC-C monitoring system, and take measures against the faults, see
Table 5-1.
Table 5-1
Fault phenomenon
Possible cause
Check or remedy
Environmental high
temperature alarm
Unreasonable High
temperature setpoint
Check the high-temperature
alarm point
Use in overload
View whether the max.
actual heating load is over
the rated value
Fan is faulty
Contact Everexceed
The AC refrigeration output
is faulty
Contact Everexceed
The closed doors are not
closed completely
Check all closed doors and
close them
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