Rack mount Series UPS (1~3kVA) User ‘s Manual
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3． When operate UPS, do not wear gold or silver jewelry such as ring or
watch, etc.
4
． Do not take the safety operation procedure for granted. If there is any
doubt, consult personnel who are familiar with the equipment.
5
． Be cautious that there is dangerous voltage in UPS. Before maintenance
and adjustment, use voltmeter to check and ensure that the power is
turned off and the equipment is under safe condition.
4.6.2 Preventive and Regular Maintenance
The following shows the preventive maintenance procedures which will improve
UPS system operation efficiency and reliability.
1
． Keep the environment clean to avoid dust and chemical contamination to
the UPS.
2
． Cable connection
Semiannually check the input and output cable connecting terminals once.
Carefully measure and check them to ensure good contact.
3
． Check the working status of the vent fan on a regular basis to prevent
clogging of the air outlet. Repair it if there is any damage.
4
． Perform periodic inspection on battery voltage and UPS working status.
4.6.3 FAQ
If the UPS fails to work properly after starting, please don't jump to the
conclusion of UPS failure. Please refer to the following and try to solve the
problem.
Problem 1
Power supply is normal; UPS is able to output AC 220V after start, yet in the
status of battery inversion with buzzer giving intermittent buzzing.
Possible cause: Unstable AC power input as a result of poor contact of the
junction points, sockets or other connection parts of the electric network feeder
circuit connected to the UPS.
Problem 2
After UPS is installed, and after the electric brake or UPS "POWER" button is
switched on, the fuse will be burnt out or tripping occurs.
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